continuous-flow grain dryer - allied grain · pdf file4 introduction in the neco dryer, warm...

1

YOUR SAFETY IS INVOLVED!

7713390

ATTENTIONPay close attention when you see this triangular symbol.

It will be throughout this manual and on decals.

Obey the Dangers, Warnings and Cautions.

READ AND UNDERSTAND THIS MANUAL BEFORE OPERATING DRYER.

CONTINUOUS-FLOW

Owner's and Operator's Manual

May 2008 Printing

9364 North 45th StreetOmaha, Nebraska 68112

www.necousa.com

GRAIN DRYER

Nebraska Engineering Co.A Division of GLOBAL Industries, Inc.

NECO

CE Version

2

GENERAL STATEMENT

WATCH FOR THIS SYMBOL! IT POINTS OUTIMPORTANT SAFETY PRECAUTIONS. IT MEANS,

“ATTENTION! - BECOME ALERT! YOUR SAFETY IS INVOLVED”.

Occupational safety is of prime concern to NECO. This Owner’s and Operator’s Manual was written with thesafety of the operator and others who come in contact with the equipment as our prime concern. It is yourresponsibility as an owner, operator, or supervisor to know what specific requirements, precautions, andwork hazards exist and to make these known to all other personnel working with the equipment or in the area,so that they too may take any necessary safety precautions that may be required. Failure to read thisOwner’s & Operators Manual and its’ safety instructions is a misuse of the equipment.

TO THE OWNER

We at NECO are continually testing and improving our products to give you the most efficient and economicalgrain handling equipment available. However, when improvements on our equipment are made, we cannotbe responsible for upgrading or changing units sold previously. The NECO equipment that you have justpurchased will give years of dependable service when properly maintained. your work load will be lightenedand valuable time will be saved. Congratulations on a wise investment and an astute brand choice . . .Welcome to the growing number of satisfied NECO equipment owners.

LIMITED WARRANTY

For a period of one (1) year after shipment of goods by Buyer to its’ customer, NECO will supply, free ofcharge, F.O.B. NECO’s factory, Omaha, Nebraska, replacement parts for parts which prove defective inworkmanship or material. Defective parts must be returned freight prepaid to the NECO Factory in Omaha,Nebraska. Prior to returning goods, NECO requires that a return form be obtained from NECO.

This limited warranty does not extend to parts designed to wear in normal operation and be replaced periodi-cally; or to damage caused by negligence, accident, abuse or improper installation or operation.

GOODS NOT MANUFACTURED BY NECO CARRY ONLY THE MANUFACTURER’S WARRANTY.

THIS UNDERTAKING IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDINGMERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE.

FAILURE TO FOLLOW THE INSTRUCTIONS CONTAINED IN THIS MANUAL AND THE ITEMS LISTEDBELOW WILL RESULT IN THE VOIDING OF THIS LIMITED WARRANTY.

1. Improper assembly.2. Improper installation (power and wiring included)3. Unauthorized alterations of goods.4. Goods operated when obviously in need of repair.5. Use of unauthorized repair parts.6. Irresponsible operation by children or uninstructed personnel7. Used to handle materials other than free flowing, non-abrasive and dry materials as intended.8. Damaged through abusive use or accident.

LIMITATION OF LIABILITY

BUYER AGREES THAT IN NO EVENT SHALL NECO HAVE LIABILITY FOR DIRECT DAMAGES IN EX-CESS OF THE CONTRACT PRICE OF THE GOODS IN RESPECT OF WHICH CLAIM IS MADE ANDBUYER FURTHER AGREES THAT IN NO EVENT SHALL NECO ON ANY CLAIM OF ANY KIND, HAVELIABILITY FOR LOSS OF USE, LOSS OF PROFITS OR FOR ANY INDIRECT, INCIDENTAL, OR CONSE-QUENTIAL DAMAGES.

3

TABLE OF CONTENTS

INTRODUCTION .......................................................................................................................4COMPONENT CERTIFICATIONS .............................................................................................5SAFETY PROCEDURES ..........................................................................................................6TOWING A DRYER ....................................................................................................................8DRYER SETUP

TOP GARNER & LEVEL ASSEMBLY (16' Grain Dryers) ...........................................10TOP GARNER & LEVEL ASSEMBLY (24' Grain Dryers) ...........................................13HIGH-CAPACITY 10" LEVEL AUGER ASSEMBLY .....................................................16FUEL SUPPLY..............................................................................................................19ELECTRIC POWER......................................................................................................27

DRYER CONTROL PANEL .....................................................................................................28BURNER MONITORS .............................................................................................................32GRAIN LEVEL MONITORS .....................................................................................................33OPERATIONAL ADJUSTMENTS ...........................................................................................34FILLING THE DRYER..............................................................................................................36START-UP PROCEDURE .......................................................................................................37OPERATION ............................................................................................................................38EMPTYING THE DRYER .........................................................................................................43MAINTENANCE.......................................................................................................................45

APPENDIXGRAIN DRYING TERMS AND DEFINITIONS .........................................................................47TROUBLESHOOTING GUIDE ................................................................................................51REPLACEMENT PARTS ........................................................................................................59

4

INTRODUCTION

In the NECO dryer, warm dry air is forced through the grain mass by the blower. This air warmsthe grain mass and causes moisture on the outside of the kernel to evaporate into the air which, inturn, is exhausted to the atmosphere. When the moisture is removed from the surface of thekernel by evaporation, moisture trapped inside the kernel slowly migrates to the outside and isabsorbed by the warm air. Thus, chain reaction takes place — warm air evaporates surfacemoisture which, in turn, causes moisture from inside the kernel to travel to the surface. Hot air isused not only because it holds much more moisture, but more importantly, it increases the vaporpressure of the moisture in the kernel and drives the moisture out from the interior of the kernel.The higher the surface temperature which can be achieved without damage to the interior of thekernel, the more quickly internal moisture will migrate to the surface for evaporation. The kernelwill dry more quickly, therefore allowing greater capacity in the drying system. This process takesmoisture out of the grain, but it takes one more step before the grain is ready for the bin.

The warm air leaves the grain dry, but at a temperature which is too high for storing. The bottomlayer or two (depending on the divider door location) of ducts are cooling ducts. Cool air is forcedthrough the grain mass to bring it down to storage temperature, usually about 30 degrees F. aboveoutside air temperature.

The drying process dictates that water is removed from the surface of the seed. Since mostmoisture testers test surface moisture, it seems logical that the moisture content of the grain willtest lower right after drying than it will a day later when the moisture inside the kernel has had achance to become even throughout the kernel. This does in fact take place — the phenomena isknown as “moisture rebound.” For this reason, it is advisable to dry the grain to about 1 percentless moisture content than the suggested storage moisture contents. (For additional information,see the section on “Moisture Rebound” under Operational tips.)

It is the responsibility of the owner of the machine to see that all persons involved with the dryerare knowledgeable in the operation of the machine. Read and understand this manual beforeoperating dryer.

SERIAL NUMBER

The serial number of your NECO dryer is located on the inside door of the main control panel.(The serial number should be quoted in any correspondence with the factory.)

5

COMPONENT CERTIFICATIONS

Component Manufacturer Catalog Number Certification CSA File / Standard #

Wire (Harmonized) Alpha 16-2 AWG stranded CSA, UL, CEBECHTOLD <] VDE [> <] HAR [> HO7V2-K (size)mm (size) AWG E220830 (UL) MTW OR UR AWM 1015 VW-1 CSA TEW 105C 600V FT1 CE

Wire (Harmonized) Lapp Kabel 16-4/0 AWG stranded CSA, UL, CELAPP KABEL <] VDE [> <] HAR [> HO7V2-K (size)mm (size) AWG (UL) 1063 MTW OR UR AWM 1015 VW-1 CSA TEW 105C 600V FT1 CE

Wire (Harmonized) SAB 16-2 AWG stranded CSA, UL, CE<] VDE [> <] HAR [> HO7V2-K (size)mm (size) AWG UR AWM Style 1015/10519 105C 600V VW1 CSA Type TEW 105C 600V FT1 CE

Relay IDEC RH2B-U CSA, UR, TUV LR35144Relay Base IDEC SH2B-05 CSA, UR, TUV LR84913Timer IDEC RTE-P1AF20 cULus, TUV, CE E66043Timer Base IDEC SR2P-05 CSA, UR, TUV LR84913

Fuses Bussmann FNW series CSA, UL Class 1422-01, File 53787Fuses Bussmann AGC series CSA, UL Class 1422-01, File 53787Fuse Blocks Bussmann BM series CSA, UR, CE Class 6225-01, File 47235Distribution Blocks Bussmann 163 series CSA, UR, CE LR15364

Enclosures Hoffman Concept series CUL, UL, VDE LR42186, Type 12Enclosures Hoffman CH series CSA, UL LL42184, Type 12Wiring Duct Iboco T1 series CSA, UR, CE LR40464-5Terminal Blocks & accessories Wago 2002 series CSA, UR, CCA-KEMA E45172

Contactors & accessories Square D LC1D series CSA, UL, CE LR43364 Class 3211 04Motor protectors Telemecanique GV2 & GV3 series CSA, UL, CE Class 3211-05, File LR81630Operator switches & lights Telemecanique XB4 series CSA, UL, CE Class 3211-03, File LR44087Transformers Square D 9070 series CSA, UL, cULus, CE LR37055

Burner Controllers Honeywell 7800 series CSA, UL, FM LR95329-3Spark Generator Honeywell Q624A 1014 CSA, UR LR1620Air switch BEC Controls R76-C1-GD-14 none noneBin Level Switch Binmaster BM-45-FHT none none

Limit Switch Honeywell BZV6 series CSA, UR LR41372Insertion Thermostat Honeywell T675A 1102 CSA, UL E4436Mini-Peeper Honeywell C7027A 1031 CSA, UL LR95329-1Modulator Motor Honeywell MC728C 1059 CSA, ULTemp Monitor IMC Model 731 none noneValves Asco 8215 series CSA, ULValves Asco 8262 series CSA, UL

Conduit boxes PVC Scepter JB series CSA, UL C22.2 No.85Conduit boxes PVC Carlon E987R CSA, ULConduit bodies Crouse-Hinds Form 7 series CSA, UL C22.2 No.18Conduit sealing rings Crouse-Hinds SG series CSA, UL C22.2Conduit EMT various EMT series UL 797

Conduit Liquid-Tite various Type UL none noneConduit hangers Bridgeport 21** series CSA, UL LR39354Conduit compression couplings Bridgeport 26*-DC series CSA, UL LR39354Conduit pull elbow Bridgeport 8*-DC series cULus E20534Conduit compression connectors Bridgeport 25*-DC2 series CSA, UL LR39354Conduit nipples Bridgeport 11** & 11**-DC series CSA, UL LR39354Conduit bodies Bridgeport LB, LR, LL, T series CSA, UL E11077Two screw strap type connector Bridgeport 660-DC2 CSA, UL LR39354

Cord Grip Hubbell SHC series CSA, ULWire terminals (crimp on) Thomas&Betts Sta-Kon series CSA, UL E9809Compression connectors Thomas&Betts MRO color-keyed series CSA, ULConduit bodies Thomas&Betts Series 35 cULusLiquid tight metal conduit fittings Thomas&Betts -- CSA, UL

Ground Lugs Burndy KA-U series CSA, ULGround Lugs ILSCO TA-1 series CSA, ULWire connectors Ideal Wing-nut series CSA, ULWire connectors Ideal Wire-nut series CSA, UL

6

SAFETY PROCEDURES

The signs that are included in this Operator’s Manual are designed to make you aware of safetyprocedures and possible hazards that could occur. It is recommended that all signs on yourNECO Grain Dryer be read, understood, and followed for the safe operation of your Dryer.

SOME WARNING AND DANGER SIGNS THAT ANY OPERATOR MUST BE AWARE OF TOAVOID INJURY ARE:

DO NOT ALLOW CLOTHING NEAR BLOWER FAN OF DRYER AS SUCTION MAYOCCUR, PULLING CLOTHES INTO FAN AND CAUSING INJURY.

DO NOT OPEN REAR DOOR OF DRYER WHILE IN OPERATION.

DO NOT DRIVE OVER PROPANE HOSE OR DAMAGE HOSE.

DO NOT CLIMB ON LADDER WHILE MACHINE IS RUNNING. DO NOT STANDON TOP OF THE MACHINE WHILE IT IS IN OPERATION TO AVOID INJURYFROM ROTATING PARTS.

KEEP ALL SHIELDS IN PLACE.

IN CASE OF FIRE IN THE GRAIN - STOP THE BLOWER TO LIMIT THE OXYGENSUPPLY.

DO NOT LEAVE DRYER UNATTENDED FOR LONG PERIODS OF TIME WHILEIN OPERATION.

DO NOT ALLOW UNTRAINED PERSONNEL, VISITORS, AND ESPECIALLYCHILDREN NEAR THE MACHINE WHILE IN OPERATION TO AVOID INJURY.

BE CERTAIN TO GUARD INTAKES OF AUGERS USED IN CONJUNCTION WITHTHE DRYER TO AVOID INJURY TO LIMBS.

7

STOP THE BLOWER IMMEDIATELY IF YOU SUSPECT THAT ANYTHING ISWRONG WITH THE GRAIN DRYER. SYMPTOMS OF A PROBLEM MAY IN-CLUDE: EXCESSIVE VIBRATION, SMOKE EMISSION FROM THE DRYER,UNUSUAL OR LOUD NOISES AND SQUEAKS.

BEWARE OF POWER LINES. THIS DRYER IS NOT INSULATED. KEEP ATLEAST 3 METERS AWAY FROM OVERHEAD ELECTRICAL WIRES. ELECTRO-CUTION CAN OCCUR WITHOUT DIRECT CONTACT.

READ ALL DECALS AND OPERATOR’S MANUAL CAREFULLY BEFORE THESTART-UP OF THIS DRYER AND FOLLOW ALL SAFETY SUGGESTIONS. FAIL-URE TO DO SO MAY RESULT IN SERIOUS PERSONAL INJURY OR DEATH.

The NECO Grain Dryer has been Engineered and factory-tested with the safety of theoperator in mind. Be sure all persons who may go near it are properly instructed.

It is the obligation of the purchaser to ensure that each successive operator or owner(and visitors) be instructed in the proper use and potential hazards of this dryer to avoidpersonal injury or property damage.

8

TOWING A DRYERThings Required

1. Suitable towing vehicle.Minimum 3/4 ton truck for a 16' dryer and a 1 ton for 24' dryer. Check with D.O.T.

for acceptability of vehicle, as this may vary state to state.Good brakes on vehicle, grain dryers do not have brakes on them.Hitch capable of towing weight of dryer, a D1680 weighs approximately 4400 kg.

2. Good traveling conditions.Dryer has a very large amount of surface area, winds above 16 kph may make

towing a dryer dangerous.Icy roads and falling snow may make stopping with a dryer impossible.Soft and muddy rural roads could present a problem with the weight of the dryer.If the dryer has been towed on salty roads it would be wise to wash down dryerthoroughly and as soon as possible, as the salt has a very adverse affect ongalvanized steel.

3. Tail lights for the back of the dryer with matching plug for towing

vehicle.

4. Four red flags for dryer, two for the front and two for the back.

5. Wide Load signs, and any permits needed for towing a vehiclethat is 2.96m wide.

6. Familiarity of route.Plan out your trip ahead of time paying particular attention to low clearance bridgesand tunnels.

7. Tools.A torque wrench, drive extension, and 13/16" socket will be needed for checkingand retightening the lug bolts. The lug bolts should be checked after the firstcouple of miles, and every 80 km afterwards. It would also be wise to have asmall wrench set 3/4" and smaller, screw drivers, 5 ton jack, and tape alongfor the trip.When towing a dryer it is best to keep the full width of the dryer tires on the road,

it 's been determined that if tires are allowed to run on the edge of the roadthat they are more likely to fail.

9

8. Spare tire for dryer and tow vehicle.The dryer uses a standard 15"x8" - 6 hole implement rim with a 31 x10.5R15 radial implement retread tire. This is equivilent to a 11L-15standard implement tire.

9. Allow plenty of time to tow dryer.We recommend towing a dryer no faster than 75 kph.

10. Safety chain.Laws require safety chain from dryer to tow vehicle.

10

DRYER SETUPTOP GARNER AND LEVEL AUGER ASSEMBLY

Hardware Location - 16' Grain Dryers

Figure 9.

11

TOP GARNER AND LEVEL AUGER ASSEMBLY

Description

3/8" x 1-1/4" Carriage Bolts3/8" Lockwashers3/8" Nuts

1/4" x 1" Carriage Bolts1/4" Flatwashers1/4" Lockwashers1/4" Nuts

1/4" x 3/4" Bolts1/4" Flatwashers1/4" Flanged Washer Nuts


1/2" x 1" Bolts1/2" Flatwashers1/2" Flanged Washer Nuts





3/8" x 1" Bolts3/8" Lockwashers3/8" Nuts

Location

Plenum Ridge Support Brack-ets (3) to Top Body Section

Garner Sides to Garner Ends

Plenum Ridge to PlenumRidge and Support Angles

Support Bar for Garner Sides

Level Auger Support Angle toGarner End

Level Auger Support Channelto Support Angle

Side Skirts to Splice Angles

Hanger Bearing SupportBrackets to Side Skirts

Side Skirts to Level AugerSupport Channels

Level Auger Bearing (DriveEnd) and Flangettes to LevelAuger Channel

continued next page

Ref.

A

B

C

D

E

F

G

H

I

J

Part No.

003014003178003148

001297003190003176003145

003038003190003160

001297003190003176003145

003072003193

2702051

003072003193

2702051

003038003190003160

003072003193

2702051

003072003193

2702051

003057003178003148

Qty.

121212

24242424

303030

2222

161616

121212

121212

242424

888

222

Hardware Location - 16' Grain DryersTable 1A.

12


Ref.

K

L

M

N

O

P

Q

R

S

T

U

V

Part No.

003057003178003148

003075003193

2702051

003075003172

003075003172

003074003193

2702051

003348003203003152

003046003191003177003147

003464003468

003292

0030722702051

003038003160

003038003190003160

Location

Level Auger Bearing (IdlerEnd) and Flangettes to LevelAuger Channel

Hanger Bearing Halves toLevel Auger

Idler Shaft to Level Auger

Drive Shaft to Level Auger

Hanger Bearing to SupportBracket

Motor Mount Base Plate toCover Plate and Side Skirts

Level Auger Motor to MotorMount Pivot Plate

Motor Mount Pivot Plate toMotor Mount Base Plate

Drive Shaft to Driven Pulley

Switch Angles & Channel toLevel Auger Channel

Level Auger Covers to SideSkirts

Garner Sides toBody Section

Description



1/2" x 2" Bolts1/2" Lock Nuts


1/2" x 1-1/2" Bolts1/2" Flatwashers1/2" Flanged Washer Nuts

3/4" x 6" Threaded Rods3/4" Flatwashers3/4" Nuts

5/16" x 1" Bolts5/16" Flatwashers5/16" Lockwashers5/16" Nuts

5/16" x 2-1/2" Carriage Bolts5/16" Wing Nuts

1/4" x 1/4" x 2" Key

1/2" x 1" Bolts1/2" Flanged Washer Nuts

1/4" x 3/4" Bolts1/4" Flanged Washer Nuts


Qty.

222

222

22

22

222

48

16

4844

22

1

44

1818

303030

Hardware Location - 16' Grain Dryers, continued

Table 1B.

13

TOP GARNER AND LEVEL AUGER ASSEMBLYHardware Location - 24' Grain Dryers

Figure 10.

14


Description











Location



Plenum Ridge to PlenumRidge and Support Angles



Level Auger Support Channelto Support Angle


Hanger Bearing SupportBrackets to Side Skirts


Level Auger Bearing (DriveEnd) and Flangettes to LevelAuger Channel

continued next page

Ref.

A

B

C

D

E

F

G

H

I

J

Part No.

003014003178003148

001297003190003176003145

003038003190003160

001297003190003176003145

003072003193

2702051

003072003193

2702051

003038003190003160

003072003193

2702051

003072003193

2702051

003057003178003148

Qty.

202020

24242424

454545

4444

161616

121212

242424

404040

888

222

Hardware Location - 24' Grain Dryers

Table 2A.

15


Ref.

K

L

M

N

O

P

Q

R

S

T

U

V

Part No.

003057003178003148

003075003193

2702051

003075003172

003075003172

003074003193

2702051

003348003203003152

003046003191003177003147

003464003468

003292

0030722702051

003038003160

003038003190003160

Location

Level Auger Bearing (IdlerEnd) and Flangettes to LevelAuger Channel

Hanger Bearing Halves toLevel Auger








Switch Angles & Channel toLevel Auger Channel



Description









1/4" x 1/4" x 2" Key




Qty.

222

444

22

22

444

48

16

4844

22

1

44

2828

454545

Hardware Location - 24' Grain Dryers, continued

Table 2B.

16

HIGH CAPACITY 10" LEVEL AUGER ASSEMBLYHardware Location - 24' Grain Dryers

Figure 11.

17

Description












Location



Plenum Ridge to Plenum Ridgeand Support Angles



Level Auger Support Channel toSupport Angle


Hanger Bearing Support Brack-ets to Side Skirts


Level Auger Bearing (Drive End)and Flangettes to Level AugerChannel

Level Auger Bearing (Idler End)and Flangettes to Level AugerChannel

continued next page

Ref.

A

B

C

D

E

F

G

H

I

J

K

Part No.

003014003178003148

001297003190003176003145

003038003190003160

001297003190003176003145

0030720031932702051

0030720031932702051

003038003190003160

0030720031932702051

0030720031932702051

003057003178003148

003057003178003148

Qty.

202020

24242424

454545

4444

161616

121212

242424

404040

888

222

222

Hardware Location - 24' Grain DryersHIGH CAPACITY 10" LEVEL AUGER ASSEMBLY

Table 3A.

18

Ref.

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Part No.

0030750031932702051

003075003172

003075003172

0030740031932702051

003348003203003152

003046003191003177003147

003464003468

003292

0030722702051

003038003160

003038003190003160

0030750031932702051

0030762702051

003075003172

Location

2" Hanger Bearing Halves toLevel Auger








Switch Angles to Channel



1 1/2" Hanger Bearing Halves toConnecting Shaft

Channel through spacer toLevel Auger Channel

Connecting Shaft to Level Auger

Description








1/4" x 1/4" x 2" Key





1/2" x 2 1/2" Bolts1/2" Flanged Washer Nuts


Qty.

666

22

22

101010

4816

4844

22

1

22

2828

454545

444

22

88

Hardware Location - 24' Grain Dryers, continuedHIGH CAPACITY 10" LEVEL AUGER ASSEMBLY

Table 3B.

19

FUEL SUPPLY

Contact your gas supplier regarding location of fuel tank(s), safe storage, transportation andhandling of fuel. The storage tank must be located at least 8 m from buildings or other structures.This will vary depending on local codes.

The dryer can be connected to only one fuel type, propane or natural gas, depending on the fueltrain setup at the factory. The fuel source is connected to the bottom corner of the plumbing sys-tem upon removal of the pipe plug. When propane is the fuel source, the tank should beequipped with a vapor and a liquid tap. The liquid tap should have a rapid flow shutoff valve. Inthe event of a fuel line break, the rapid flow shutoff valve will stop the flow of propane.

It is recommended that initial dryer startup each day be done using the vapor tap. When the dryerhas run on vapor for 5 to 10 minutes or until the temperature in the dryer plenum is between 50°Cand 65°C, the liquid valve should be opened slowly to avoid tripping the rapid flow shutoff valve.When operating this valve, give it a partial turn, then allow the pressure to equalize between thetank and the dryer before opening it further. After fully opening the liquid valve, close the vaporvalve. Starting on vapor ensures the vaporizer coils are warmed before introducing liquid propaneand assures that only vaporized propane reaches the dryer burner.

FIgure 1 can be used as a guide when setting up a propane tank. One end is raised to helpprevent oil sediment from entering the dryer fuel system.

OIL ENTERING THE DRYER FUEL SYSTEM WILL VOID THE WARRANTY ONFUEL TRAIN COMPONENTS.

TO DRYER

LIQUID VALVE

TEE

VAPOR VALVE

TANK

LIQUID

OIL

Figure 1.

20

Extreme caution must be used if tank(s) for anhydrous ammonia are used for LP gasfuel to your dryer. If tank(s) are not properly purged, fuel train components may bedamaged by anhydrous ammonia. Check with your LP gas supplier for specific purg-ing procedure. Fuel train components damaged by anhydrous ammonia are notcovered under warranty.

CAUTION

EXTREME CARE MUST BE EXERCISED WHEN DOING THIS. NEVER USE ANOPEN FLAME DIRECTLY ON THE TANK.

When operating propane fueled dryers in very cold weather, the dryer may not be able to obtainsufficient fuel to reach desired operating temperature. This is due to the very low propane vaporpressure at cold temperatures. To overcome this situation, the tank can be warmed. This can beaccomplished by using an electric warming blanket that is approved for such a purpose.

Table 1 gives the vaporization rate of a 3,800 liter tank at various temperatures when the tank is25% full. If more burners are used simultaneously or low ambient temperatures are encountered,then a larger tank should be installed or additional tanks added in parallel.

The vaporization rate of propane is constantly changing due to variables of temperature andamount of liquid in the tank. The chart shown below is an approximation.

See next page for line sizing charts.

VaporPressure

1224 kPa1069 kPa

945 kPa858 kPa692 kPa593 kPa506 kPa419 kPa347 kPa283 kPa224 kPa171 kPa

Cubic Metersper Hour(vapor)

19.317.916.515.113.812.911.09.68.26.85.44.0

Litersper Hour(liquid)

71.065.961.457.250.847.340.535.230.125.019.914.8

OutsideTemperature

35°C30°C25°C20°C15°C10°C

5°C0°C

-5°C-10°C-15°C-20°C

kW

505469433396361337288250214178141105

PROPANE VAPORIZATION RATE - 3,800 LITER TANK

Table 1.

21

LINE SIZING CHART FOR LP-GAS VAPOR

kW m3/min3/8"O.D.

1/2"O.D.

5/8"O.D.

FLOW RATE COPPER TUBING

3/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2"

SCHEDULE 40 PIPE

29445988

120150290440590730880

11701470176020502340

1.11.72.33.44.55.7

11.317.022.728.334.045.356.668.079.390.6

592716853

874124175

825516853

784530943

912513854

101493020149543

936146272013108

1029765473528

1371007558

321247191

LINE LENGTH IN METERS

Use Table 2 as a guide for sizing the line for vapor between the LP tank and the dryer so as toallow a pressure drop of 7 kPa.

Use Table 3 as a guide for sizing the line for liquid propane between the LP tank and the dryer soas to allow a pressure drop of 7 kPa.

kW l/hr3/8"O.D.

1/2"O.D.

5/8"O.D.

FLOW RATE COPPER TUBING - TYPE K

1/4" 3/8" 1/2" 3/4" 1" 1-1/4"

SCHEDULE 80 PIPE

268536

107216092145268137534826536275078043

3876

151227303379530681757

10601136

1002563

401100251164

430108482517954

2225514632

251622816105

22710157361911954

2241437344361816

2481501226254 239

LINE LENGTH IN METERS

LINE SIZING CHART FOR LP-GAS LIQUID

Table 2.

Table 3.

22

UP (Open Position)

DOWN (Closed Position)

QUICK SHUTOFF VALVE

TOP VIEW

TOP

FUEL INLET MANIFOLD

LIQUID PROPANE

On the following pages are illustrations and brief descriptions of fuel system components. Thereferenece numbers listed in each of the four following figures (Figures 2, 3, 4, and 5) are ex-plained in the text starting after Figure 21.

1. POINT OF FUEL SUPPLY CONNECTION

2. HYDROSTATIC RELIEF VALVE: Relieves the hydrostatic pressure that might develop insections of liquid piping between closed shutoff valves. These valves are important because(1) liquid propane expands with heat, and (2) liquid propane isn't compressible.

3. MANUAL SHUTOFF VALVE: Manually prevents entry of fuel into the fuel system.

4. FUEL STRAINER: Traps foreign debris that may be in the fuel line.

5. SOLENOID VALVES: Electrically actuated valves which turn fuel on and off.

6. VAPORIZER: (not shown) Finned tube which vaporize the liquid propane.

FIgure 2.

23

FUEL CONTROL MANIFOLDLiquid Propane Fueled Dryers with Partlow Valve

TO BURNER

TO BURNER

FROM VAPORIZER

OPENPOSITION

continued next page

7. PRESSURE REGULATOR: Reduces fuel pressure to a value whichcan be controlled by the remaining fuel control valves.

8. PRIMARY PRESSURE GAUGE: Indicates fuel pressure setting at regulator.

9. MANUAL SHUTOFF VALVE: Used to manually shut off fuel to burner and pilot.

10. AUTOMATIC SHUTOFF VALVE: Electrically acuated valve which turns fuel on and off to theburner.

11. PARTLOW MODULATING VALVE: Controls the flow of fuel to the burner to maintain thedesired temperature.

FIgure 3.

24

12. CAPILLARY TUBE FOR PARTLOW VALVE: Measures the plenum air temperature andcontrols the Partlow valve as required.

13. PRESSURE REGULATOR: Further reduces fuel pressure to a value which is useable forpilot purposes.

14. HYDROSTATIC RELIEF VALVE: Used to relieve any excess fuel pressure the may occur inthe pilot line.

15. AUTOMATIC SHUTOFF VALVE: Electrically actuated valve which turns fuel on and off to theburner pilot.

16. PILOT ORIFICE: A fitting with a small hole in the end which controls the volume of fuel deliv-ered to the burner pilot.

17. MODULATING MOTOR: Operates the Flow-Control Valve after receiving input from theWatlow Temperature Controller.

continued next page

FUEL CONTROL MANIFOLDLiquid Propane Fueled Dryers with Electronic Controls

SERIES 988

091901

PROCESS

L4L3L2L1

%OUT

DEV

MANAUTO

DISPLAY

MODE

WATLOW

TO BURNER

FIgure 4.

25

FUEL CONTROL INLET & MANIFOLD

NATURAL GAS

When using natural gas, the gas company will install a regulator which should be capable ofproducing 20 to 70 kPa under flow. The regulator should be located at or near the dryer to reducethe size of the supply line. Consult your natural gas representative for pressure available andassistance in the installation.

TO BURNER ELBOW FORSINGLE ORTOP BURNERS

BASICPARTLOW

VALVE

TO WATLOW CONTROLLEROR PLC TEMP CARD

OPTIONALELECTRIC

MODULATING CONTROL VALVE

12

11

10

FIgure 5.

26

MANUAL SHUTOFF VALVE: Manually prevents entry of fuel into the fuel system.

PRESSURE REDUCING REGULATOR: Reduces fuel pressure to a value which can becontrolled by the remaining fuel control valves.

PRIMARY PRESSURE GAUGE: Indicates fuel pressure setting at regulator.

MAIN SOLENOID VALVE: Electrically activated valve which turns fuel on and off to mainburner.

PARTLOW MODULATING VALVE: Controls the flow of fuel to the burner to maintain thedesired temperature.

CAPILLARY TUBE FOR PARTLOW VALVE: Measures the plenum air temperature andcontrols the Partlow valve as required.

PRESSURE REGULATOR: Further reduces fuel pressure to a value which is useable forpilot purposes.

PILOT SOLENOID VALVE: Electrically actuated valve which turns fuel on and off to theburner pilot.

PILOT ORIFICE: A fitting with a small hole in the end which controls the volume of fuel deliv-ered to the burner pilot.

MODULATING MOTOR: Operates the Flow-Control Valve after receiving input from theWatlow Temperature Controller or PLC Temp Card.

LINKAGE: Operates Flow-Control Valve.

FLOW-CONTROL VALVE: Controls the amount of fuel the burner receives. Designed forthrottling service and is not intended for tight shutoff.

MANUAL SHUT OFF VALVE WITH PLUGGED TEST PORT: Used to manually shutoff fuelto main burner.

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

11.

12.

13.

27

ELECTRIC POWER

Most of the wiring has been completed at the factory. There are however, a few wiring tasks thatmust be completed before you are ready to operate. A qualified electrician will be required tocomplete the wiring.

A main disconnect switch for the electrical power to the dryer must be supplied by thecustomer. This disconnect switch should be sized and installed by a certified electrician.

Copper wire of the appropriate size will have to be run between the main disconnect switch andthe distribution block located in the dryer panel. Wire size will be based on ampacity and distancefrom the main disconnect to the dryer. The serial number decal inside the panel lists the ampacityof the disconnect required by each dryer.

28

DRYER CONTROL PANEL

The control panel installed on your dryer will perform several functions automatically so that you donot have to constantly monitor the dryer. However, it is advisable to never leave the dryer unat-tended for long periods of time. The control panel will provide the following functions; fill the dryerautomatically, stop the dryer in case of auger failure, fuel failure, when wet bin is empty or dry binis full and will shut down machine in case of blower failure.

SELECTOR SWITCHES

Figure 6 shows the selector switches on the front panelof the dryer. These switches allow you tochoose the operating function of the panel.

Figure 6.

OPERATING INSTRUCTIONSREAD AND UNDERSTAND OPERATING PROCEDURE INOWNER’S MANUAL BEFORE OPERATING DRYER.

29

“FILLING” Switch

This switch controls the filling and leveling auger motors. The “TEST” position bypasses all controldevices and will start these motors no matter what the dryer grain level.

WARNING: DO NOT LEAVE THE FILLING SWITCH IN THE “TEST”POSITION. THE FILLING AUGER WILL NOT STOP WHEN THEDRYER IS FULL AND GRAIN SPILLAGE COULD OCCUR.

The “AUTO” position is selected when the dryer is to be filled automatically. When the grain levelreaches the filling bin level switch, the leveling auger and fill auger will stop. The “LOW DRYER”and “WET EMPTY” switches are also included in the circuit so that incorrect grain levels will stopthe filling system from operating. NOTE: THE OVERLOAD RELAYS FOR THESE MOTORSARE INTERLOCKED IN SUCH A WAY THAT IF ONE MOTOR OVERLOADS, THE OTHER WILLALSO STOP.

“DISCHARGE” Switch

In the “AUTO” or "EMPTY" position, the dryer will discharge grain automatically. If the “DIS-CHARGE PLUGGED” switch or the “DRY FULL” switch detect grain, the unloading system willstop. When in "AUTO" position the unloading system will also stop if the burner stops for anyreason. NOTE: THE OVERLOAD RELAYS FOR THESE MOTORS ARE INTERLOCKED INSUCH A WAY THAT IF ONE MOTOR OVERLOADS, THE OTHER WILL ALSO STOP.

A

B

“BLOWER” Switch

When this switch is in the off position, turn to the start position and hold until the blower starts.When released, this switch will spring and return to the run position. If any of the safety interlocksdetect an abnormal situation or grain activates the discharge plugged switch, the burners, blowersand discharge unit will shut down. The only time the blowers will continue to run after the burnersare shut down is due to either the lack of grain against the low grain switch which is mounted onthe top body section or when the wet holding bin becomes empty or the dry grain bin becomes full.In these cases, the burners and discharge will stop but the blowers will continue to operate until theoff delay timer (4TR) times out. 4TR is adjustable from 0 to 100 minutes. This timer is present inthe case where wet grain is no longer available to the dryer, the blowers will then continue runningfor a length of time predetermined by the operator to cool grain left in the dryer.

Dryers with multiple blowers have only one blower switch. To prevent an overload of the powersource during the motor start-up, there is a time lag between the start-up of the first blower andeach subsequent blower. These time delays are incorporated into the motor starters.

“FUEL SYSTEM” Switch

The “MANUAL” position of this switch bypasses some of the control devices in the system. Forexample, if the wet surge bin were to become empty, the fuel system would not turn off. If however,the blower would stop, the fuel system would immediately be turned off. The “MANUAL” positionis used for batch drying. The dryer should not be left unattended when the fuel system is in the“MANUAL” position.

C

D

30

In the “AUTO” position, the fuel is tied in to all safety control devices. In case of auger failure ordepletion of grain supply, the fuel system will shut off as well as the rest of the dryer (except theblower). Also, if the “HIGH LIMIT” or “STATIC PRESSURE” switch detects a problem, the burnerwill be stopped.

“FUNCTION” Switch

This switch is installed to accommodate some special situations that arise when drying. The"INTERLOCK” position is the normal operating position. All control devices are in the circuit whenthis switch is in the "INTERLOCK" position and the dryer will run on automatic. The “START”position bypasses some of the control devices and is only used when starting the dryer. When the" BURNER ON” lamp is illuminated, the “FUNCTION” switch must be moved to the “INTERLOCK”position before timer 1TR times out.

E

The feedrolls and discharge augers will not start until the FUNCTION switch is in theINTERLOCK position. This switch must be turned to INTERLOCK within 30 sec-onds after the green BURNER ON lamp is illuminated. If more than 30 secondspasses (timer 1TR controls this amount of time delay), the dryer will shut down theburner(s). The dryer will then restart after purging and run through this cycle again andkeep doing this until the FUNCTION switch is turned to the INTERLOCK position. Withthe burner(s) on, grain will not move through the dryer until the FUNCTION switch ismoved to the INTERLOCK position. Failure to move the FUNCTION switch to theINTERLOCK position will cause the dryer to cycle on and off and may cause over-dryingof grain or possible fire.

The “FILL/EMPTY” position is used when filling or emptying the dryer. For example, let’s say youwish to initially fill the dryer. With the “FILLING” switch in “AUTO”, the augers would not operate ifthe FUNCTION switch is in anything other than "FILL/EMPTY" because the “LOW DRYER” switchwould not have had any grain against it. The system would see a problem and prevent the fillingauger from starting. Moving the switch to the “FILL/EMPTY” position removes the “LOW DRYER”switch from the circuit allowing filling to take place. When the dryer is full, the filling system willautomatically stop. A similar situation occurs when trying to completely empty the dryer.

“BURNER” Switch(only present on dryers with multiple burners)

Whether the dryer is going to use all heat or heat and cool will determine how many of the burnersneed to be lighted. On a dryer with two burners, the switch will be marked: 1 and 1,2. On a dryerwith three burners, the switch will be marked: 1 and 1,2 and 1,2,3. 1 is always the top burner, 2 isalways the next burner down from the top and 3 is always the bottom burner if it is present. If allheat is desired, then the selector switch would be turned on to the position marked 1,2,3. If heatand cool is desired, the selector switch would be set to the position marked 1,2.

31

“LOW DRYER” and “WET EMPTY” Lamps

Indicates that grain level is low or the wet surge bin is empty respectively. In either case, the fillingwill stop. If the fuel system and discharge switches are in the “AUTO” position, they will also stop.

“DISCHARGE PLUGGED” and “DRY FULL” Lamps

Indicates that the discharge is plugged or dry grain bin is full respectively. In either case, thedischarge system will stop. If the fuel system is in “AUTO” position, it will also stop.

“POWER” Lamp

Indicates that the dryer control panel is energized.

“IGNITION” Lamp

Indicates that an ignition attempt is prevented when either the high limit or operating limit switchesare tripped, the static pressure switch indicates insufficient pressure, or the flame safeguard relayhas tripped. An ignition attempt will only be made for a maximum of 10 seconds.

“BURNER ON” Lamp

Indicates that an ignition attempt was successful and that the scanner is detecting a proper flamesignal. The discharge system will now start automatically if the discharge switch is in “AUTO”position. When the " BURNER ON” lamp is illuminated, the “FUNCTION” switch is moved to the“INTERLOCK” position.

“LOW STATIC PRESSURE” Lamp

Indicates insufficient status pressure in the dryer. An ignition attempt will not be made until thecause of the problem is corrected.

“LIMITS EXCEEDED” Lamp

Indicates that either the high limit or operating limit switch has been tripped. An ignition attemptwill not be made. Both limits are reset by pressing the high limit reset button.

“BURNER RESET REQUIRED” Lamp

Indicates that an ignition attempt has been unsuccessful. Another attempt will not be made untilthe burner is reset by pressing the burner reset button.

F

H

I

J

G

L

M

K

INDICATOR LIGHTS

There are a number of indicator lights on the control panel (fig. 05) which indicate the status ofvarious controls and monitors. Below is a description of each lamp and its function. (Replacement bulbs are available, part number for bulbs is 044609).

32

BURNER MONITORS

There are a number of monitors and safety devices which supervise and control burner operation.They are as follows:

“HIGH TEMPERATURE LIMIT SWITCH”

This device will stop the burner if the actual plenum temperature exceeds the setting on the de-vice. The switch itself is located in the burner interlock control box and can be set from 160° to260°F. A sensing element in the dryer plenum is located in the upper flow of heated air 8 to 10feet away from the burner. It is normally set at 30° to 40° F above the drying temperature.

“STATIC PRESSURE SWITCH”

This switch monitors the static pressure produced by the blower. If a loss of static pressure isdetected (blower stops), it will shut down the dryer. The device is located in the burner interlockbox and has a copper tube extending into the upper dryer plenum where it senses the pressure.

“SCANNER”

This device is an ultraviolet flame sensor ( mini-peeper ) and detects when the burner is operating.It will turn off the fuel supply when a loss of flame is detected.

“FLAME SAFEGUARD CONTROL”

This device is the overall burner controller. It monitors the status of the static pressure switch, highlimit switch and scanner and decides when it is safe to operate the burner. It directly controls theoperation of the fuel valves and ignition transformer. The device is located in the main dryercontrol box.

“TEMPERATURE MODULATING VALVE”

This device controls the amount of fuel reaching the burner unit thus controlling the temperature ofthe dryer plenum. When set at a desired level, it keeps the plenum temperature constant over awide range of conditions. It has a sensor which is located in the plenum of the dryer to detecttemperature. The temperature setting is controlled by the knob located in the top of the valve.Turning it counter-clockwise increases the temperature, while clockwise decreases it. The actualtemperature is indicated on the thermometer next to the valve. The thermostat on the valve hasbeen calibrated to the thermometer at the factory. If recalibration of the valve becomes necessary,first let dryer warm up for 15 minutes and then simply loosen the allen screw at the top of the valve,set the knob to correspond with the thermometer and retighten the allen screw.

33

GRAIN LEVEL MONITORS

The electrical system on this dryer is capable of monitoring5 grain level switches when in the automatic drying mode.There are 3 grain monitors included on the dryer itself and 2monitors that are customer supplied that monitor wet grainsupply and dry grain supply. Following is a list of thesegrain level switches and their function.

“FILL DRYER” Switch

Located at the top of the dryer, this switch controls theoperation of the filling auger. It is mounted on an adjustablebracket so that the level of the grain in the dryer can beadjusted for different operating conditions and grain types.

“LOW DRYER”

This switch (shwon in Figure 7) is mounted on the side of the top left body section of the dryer. Itdetects when the level of the grain in the dryer is below normal. When this switch is tripped thedryer will go through an automatic shut-down cycle.

“DISCHARGE” Switch

This switch is identical to the Low Dryer switch except that it is located at the discharge point inthe rear clean-out trough. It's purpose is to detect a malfunction in the grain conveyor that takes drygrain away from the dryer. If this switch is tripped the entiredryer shuts down immediatley.

“WET EMPTY” Switch

This switch is customer supplied and is to be mounted at the bottom of the wet surge bin. It de-tects when wet grain supply is exhausted. It is field wired to the motor starter and overload relay inthe bottom of the main control panel.

“DRY FULL” Switch

This switch is customer supplied and is to be mounted at the top of the dry bin. It detects when thedry bin is full. It is also field wired to the motor starter and overload relay in the bottom of the maincontrol panel.

Figure 7.

PN# 040440

34

OPERATIONAL ADJUSTMENTS

PLENUM DIVIDER DOOR POSITION12' and 16' Dryers

Figure 8 shows how the divider doors should normally bein the lower position, giving one layer of cooling. If thegrain coming out of the machine is too warm with the doorsin this position and the flap at the front fully lowered, thedoors should be placed in the upper position. Normally,placing the divider door in the upper position would onlyoccur in low moisture removal and when drying on warmdays. Note: Not all dryers are equipped with theoptional cooling floors.

HEAT PLENUM

DIVIDER DOOR

COOLING PLENUM

1

2

3

FLAP POSITION - AIR DIVIDERS

The flap position is one of the fine tuning adjustments which determines the amount of cooling airthat reaches the grain (see Figure 9). On all dryers, the air divider flap is directly in line with thehandle on the outside of the fan connection housing so one has a visual check on the actual posi-tion of the flap. The lower the flap handle is on the slotted adjusting arm, the morecooling air is allowed through to the bottom for cooling.

When initially starting the dryer on a batch ofgrain or when drying without any cooling (allheat), the divider doors can be opened toallow heated air to reach all of the dryer. Thecooling flap should be completely raisedwhen doing this so that all of the air is heatedby the burner.

The drying of the first batch of grain is donemore efficiently by recirculating it back intothe dryer to maintain a continuous flow. Thiscan be done by putting it back on the truck,putting it back into the wet holding bin, or byusing a portable auger and putting it directlyinto the top of the dryer.

HEATED AIR

COOL AIR

BLOWERFLAPHANDLE

LOCKINGARM

12' and 16' Dryers

Figure 8.

Figure 9.

35

The function of the pressure regulator (shown in Figure 10) is to supply a constant pressure ofpropane to the temperature modulating valve on the dryer. Under normal operation, the pressureon the regulator gauge can be set between 3 an 8 psi.

It is best to have the pressure regulator set just high enough to maintain operating temperature.This allows the modulating valve to hold a more even temperature. It may also be necessary toincrease the pressure as the weather gets colder, as the higher pressure is needed to hold oper-ating temperature.

NOTE: It is normal for the pressure on the regulator gauge to rise on shut-down. The reason forthis is that the regulator gauge is on the vaporizer loop between two solenoid valves. When thevalves close, the vaporizer is still warming the propane and it is expanding, causing the pressureto rise. Should this pressure become too great, there are pressure relief valves in this loop torelieve any extreme pressure before any damages could occur.

ADJUSTMENTSCREW

PRESSURE REGULATOR

PRESSURE GAUGE

PRESSUREREGULATOR

FROM VAPORIZER

TO BURNER

LIQUID PROPANEMODELS

NATURAL GASMODELS

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

○

Figure 10.

36

FUNCTION switch in FILL/EMPTY position.

FILLING switch in AUTO position.

All other switches in OFF position.

The dryer will now fill automatically. DO NOT attempt to fill dryer in the TEST position. All grainlevel switches are excluded from the circuit and the augers will not stop even when the dryer is full.

CAUTION: BE SURE THAT THE CLEANOUT DOORS ARE COMPLETELYCLOSED BEFORE FILLING. Use your hand to assist the door closing if neces-sary. The OUTSIDE door closes first, see Figure 11.

ALL SHIELDS MUST BE FIRMLY IN PLACE.

ALL BELTS, SHAFTS AND AUGERS ARE TO BECOVERED.

BLOCK WHEELS ON PORTABLE FUEL TANKSIF USED.

KEEP AREA CLEAN TO PREVENT TRIPPING.

FILLING THE DRYER

Figure 11.

NOTE: ALWAYS INVESTIGATE THE CAUSE OF A TRIPPED CIRCUIT BREAKER OROVERLOAD RELAY BEFORE RESUMING OPERATIONS.

If the filling system stops before the dryer is full:

Check motor circuit breakers.

Check motor overload relays.

Check control circuit breakers.

If the filling system fails to start:


Check the motor overload relays.

Check main power switch.


Check control panel switch positions.

37

START-UP PROCEDURE

Fill dryer according to FILL INSTRUCTIONS. Before ignition can take place, the dryer mustbe full or all ducts above the grain level must be closed off to allow at least 1" of staticpressure in the dryer with the blower operating.

On propane fueled dryers, open vapor valve on propane tank.

Open all manual gas valves on dryer.

Adjust pressure regulator to approximately one - half of normal operating pressure.

Set temperature controller to 30°C over ambient.

Set the following switches to:

FUNCTION switch in START position.

FILL switch in AUTO position.

BLOWER switch to Momentary Start (for less than 1 sec.) and then to ON position.

DISCHARGE switch in AUTO position.

FUEL SYSTEM switch in AUTO position. (After blower is running)

The burner circuits will now be energized. There will be a 30 second delay before an ignitionattempt is made. The illumination of the IGNITION lamps will signal the start of an ignition attempt.The fuel valves will open and the ignition transformer will be energized. When the burners igniteand the scanner has verified that flame exists, the green BURNER ON operating lampswill be illuminated. The FUNCTION switch must now be put in the INTERLOCK position.The feedrolls and discharge augers will not start until the FUNCTION switch is in the INTERLOCKposition. This switch must be turned to the INTERLOCK within 30 seconds after thegreen BURNER ON lamp is illuminated. If more than 30 seconds passes (timer 1TR controlsthis amount of time delay), the dryer will shut down the burner(s). The dryer will then restart afterpurging and run through this cycle again and keep doing this until the FUNCTION switch is turnedto the INTERLOCK position. With the burner(s) on, grain will not move through the dryer until theFUNCTION switch is moved to the INTERLOCK position. Failure to move the FUNCTION switchto the INTERLOCK position will cause the dryer to cycle on and off and may cause over-drying ofgrain or possible fire.

The discharge rate of the grain is adjusted to the appropriate level with the Electronic MoistureController, refer to the instructions listed in this manual.

For propane fueled dryers, allow the dryer to warm up for 5 - 10 minutes then slowly open theliquid valve on the propane tank. Shut off the vapor valve at the propane tank.

Set regulator to normal operating pressure.

Slowly bring the dryer up to the desired operating temperature.

38

OPERATIONOPERATING TIPS FOR MAXIMUM CAPACITY

BLOWER SPEED

The blower on the dryer was designed for distinctive characteristics. When operated at normalspeed, the blower will put out enough air to do an adequate job of drying. If you increase thespeed of the blower it will put out a significantly larger volume of air. Our recommendation is that aperson can increase the speed of the blower until the air starts to lift kernels of grain out of theducts, then run at a speed just lower than this. On rapeseed it may be 540 RPM, where as inbarley and wheat it may be as high as 600 or 650 RPM. These speeds can be accomplished bychanging motor pulleys: 6.8 = 538 RPM, 7.4 = 586 RPM, 8.0 = 634 RPM.

CAUTION: Do not exceed a blower speed of 650 RPM.

In certain cases where grain is being blown out of one or two ducts for no apparent reason, thecause may be trash that has piled up in corners of the machine as it moves along by a duct, itallows more air to flow at that particular point. The thin layer of grain which covers the trash maybe picked up and blown out. This may be more noticeable in flax and rapeseed. Try to raise orlower the leveling auger or the bin fill switch to allow the trash to pile up at the end of the machine.

CAUTION: Never go on top of dryer while operating to avoid injury by movingparts.

It is desirable to clean the wet grain if convenient before drying. Combines should be adjusted toprovide the cleanest sample.

TEMPERATURE RECOMMENDATIONS

In making temperature recommendations it is NECO’s firm belief that as long as the grain's abilityto germinate is not affected by drying, then there is no damage to the milling, malting, feeding orprotein quality of the grain.

A simple check to see what maximum temperature a person can operate at is when the machineis operating in the batch or stationary mode. We suggest that people do not exceed the maximumtemperature that swaths might get on a hot day, unless the grain is for feed. We have recordedswath temperature in excess of 55°C, therefore, in absence of other technical date, we suggestthat farmers use this as a maximum and suggest if the grain is quite damp, that a little be movedthough the dryer to avoid any over drying and allowing the grain to mix.

To avoid tripping the "High Temperature Limit" switch, limit the drying temperature to 230° F.

To determine correct kernel temperature, take a sample from a duct at the lower part of the heat-ing section. Put into an insulated (covered) container, with a thermometer directly in the grain.After 10 minutes record the temperature reading. Putting a thermometer directly in the dryer onlygives the temperature of the air between the kernels and not the correct temperature of kernelswhich is required.

39

RECOMMENDED MAXIMUM TEMPERATURES IN THE NECO DRYER

SPECIFIC CROPS

Rapeseed: In the NECO dryer, rapeseed is as trouble free as any other crop to dry. Thescreenless design is the major reason for this. There are several things to watch for however. Inrapeseed containing pods it is advisable to clean out the machine after every days’ operation toprevent trash build up and plugging in the machine. Also, the temperature must be watchedcarefully. Combustion is known to have occurred in rapeseed when the seed temperature reachedabout 70°C. It is possible for this to happen in plugged areas of the machine.

Empty the machine daily to ensure that it is not plugged with trash. Wind can cause trash toaccumulate in one area.

Flaxseed: Because of the shape of flaxseed, the same conditions exist with flaxseed as withrapeseed. Flax is one of the most difficult crops to force air though. Therefore, by keeping itmoving it will stay loose and more air will pass through. Flaxseed also has the characteristic that itwill tend to stick together and to the walls of the machine if it is not kept moving at all

Table 4.

CAUTION: The temperatures Table 4 must be used with care. In cases where the grainhas a lot of trash, when drying high moisture grain, or is immature or frozen, drying at theabove temperatures may not be possible. In cases where there is blocking in themachine due to trash, it is possible for this material to become subject to sponta-neous combustion. In this case and in any case where a person may see smokecoming from the machine, the blower should be stopped immediately. The mate-rial will generally smother itself in a few minutes. As insurance, a person may want toopen the back door and check that the material has been extinguished.

Under normal circumstances, always cool the grain when stopping the machine to avoidpossible combustion which can occur in any grain.

FEED COMMERCIAL SEED

Continuous-Flow

Batch

Continuous-Flow

Batch

BARLEY, OATS,WHEAT, CORN

RAPESEED andFLAXSEED

°F

200+

160

-

-

°C

93+

71

-

-

°F

180 - 200

140 - 160

150 - 170

130 - 140

°C

82 - 93

60 - 71

66 - 77

54 - 60

°F

160

130

130 - 140

110

°C

71

71

54 - 60

43

40

times. The blower speed may have to be lowered or the duct shut-off slides closed in order toprevent it from being lifted out of the ducts.

Barley, Wheat and Oats: These crops dry relatively trouble free. One must be sure to clean themachine out after every couple of days operation in order to clean any possible trash blockages.

Specialty Crops: Feel free to contact a factory representative.

“MOISTURE REBOUND”

Moisture rebound can be defined as the equalization of moisture within a kernel after being rapidlydried. Since moisture is removed from the outer part of the kernel first, the inside is at a highermoisture content. Rebound is just this evening out. This can occur on a hot day in the field as wellas in the bin.

Moisture rebound is a consideration that should be checked and allowed for under normal dryingoperations. The amount of moisture rebound encountered will vary depending upon the amount ofmoisture removed, and how fast the moisture is removed.

By taking a sample of grain which has just been dried, placing it in a tightly sealed container forover night and then re-checking the moisture content again the next morning, you will be able todetermine amount of moisture rebound and how much you will have to “overdry” the grain in orderto compensate “moisture bound”.

OPERATION IN ADVERSE WEATHER

Most operators, when drying, hope that all of their drying can be done early in the fall when theweather is warm and sunny. Unfortunately, this does not always happen.

The factor which has the most influence on drying is the temperature of the outside air which isused to heat the grain. It does not effect the capacity of the machine, however, it will increase thefuel costs of drying. The second factor which will influence operating is the temperature of thegrain which is to be dried. In this case, both fuel consumption is increased and the capacity of thedryer is reduced because the grain must be heated more than in warm weather drying.

Drying in rainy weather does effect the operation of the machine. However, the problem is not assevere as some people may think. The amount rain water that would enter the dryer is signifi-cantly less than the amount of internal moisture the dryer is capable of removing from the grain.One can expect a decrease in capacity of about 10-15% if the dryer is operated in the rain.

41

DURING OPERATION

The following conditions will result in an automatic shut down.

Wet bin out of grain; indicated by WET EMPTY lamp.

Low grain in dryer; indicated by LOW DRYER lamp. If this occurs, following are the most prob-able causes:

•Motor circuit breakers on filling/leveling motors.

•Overloaded filling/leveling motors.

•A mechanical malfunction in the filling auger.

Discharge plugged; indicated by the DISCHARGE PLUGGED lamp. If this occurs, following arethe most probable causes.

•Dry auger mechanical malfunction.

•Dry auger motor circuit breaker tripped.

Dry bin is full; indicated by DRY FULL lamp.

Dry auger or discharge motor overloaded; no indicating lamps indicate this condition. Can checkthis by resetting dry auger and discharge motor overloads or trying discharge system on empty.

Fuel supply being interrupted; no direct indication lamps indicate this condition. Pressure onprimary pressure gauge will be at zero.

Excess temperature condition; when FUNCTION switch is in the INTERLOCK position, the HIGHLIMIT lamp will come on. If the plenum temperature exceeded the setting on either the high limitswitch or the operating limit, the circuit will be tripped. Push the HIGH LIMIT RESET button toreset.

Low static pressure; when FUNCTION switch is in the INTERLOCK position, the LOW STATICPRESSURE lamp will be illuminated. NOTE: IF THE PROBLEM IS INTERMITTENT, THE LAMPMAY NOT ILLUMINATE. YOU WILL HAVE TO MAKE AN IGNITION ATTEMPT WHILE WATCH-ING FOR A FLICKER IN THE LAMP.

Blower motor overload; will result in a low static pressure condition indicated as describedabove.

42

If the burner(s) will not ignite, the following should be checked.

FUNCTION switch should be in START.

If any RED indicating lamp is on, investigate the problem.

If the ignition lamp illuminates for 10 seconds but the burner(s) never lights, check fuel supply andthe gap between the electrode and the burner.

If the IGNITION lamp is illuminated for 10 seconds and the burner ignites but goes out at the sametime as the IGNITION lamp, the scanner may be defective or the sight pipe is plugged with debris.

DRYING THE LAST BATCH

When drying the last batch of grain, whether for periodic clean out, to change grains or the grainsource has become exhausted, the grain remaining in the dryer can be dried by recirculating thegrain or by “Batch Drying”. On continuous flow, the grain is dried evenly from all sides as it movesdownward in the dryer. The grain is dried faster and more efficiently than as a batch. In caseswhere a batch must be dried, it is best done by recirculating some of the grain, allowing the grainto dry. With some types of grain it is necessary to dry more evenly, but also to reduce the dryingtime. In some cases, it may be almost impossible to dry without moving the grain a little, espe-cially with flax, rapeseed and other small grains.

The NECO dryer is capable of being operated as a batch dryer; however when the dryer is usedin this method, it is susceptible to the same problems as a recirculation batch dryer.

Since the grain is not moving during batch drying, the drying temperature should belowered to avoid overheating some of the grain. See the following pages for recom-mended maximum temperatures in NECO dryer.

CAUTION: Never leave the dryer unattended when operating in manual position.

Test grain samples from several areas of the dryer and average them until the average grainmoisture is acceptable. Turn the fuel switch off and allow the blower to continue until the grain hascooled to within 20°F of ambient temperature or 40°F. To empty the dryer, see next page.

CAUTION: To avoid injury, DO NOT open rear door while the blower is operating.

Excessive fuel pressure may blow out pilot upon ignition, reduce fuel pressure to 3 to 5 psi retryignition.

43

EMPTYING THE DRYER

FUNCTION switch in FILL/EMPTY position.

DISCHARGE switch in EMPTY position.

All other switches in OFF position.

The dryer will now empty out completely. The DISCHARGE PLUGGED switch is included in thecircuit when the DISCHARGE switch is in the EMPTY position.

NEVER ATTEMPT TO UNPLUG EQUIPMENT WHILE THERE IS APOSSIBILITY OF SOMEONE ELSE RESETTING DISCHARGE.

Check control circuit breakers.If the unloading system stops before dryer isempty:

Check the DRY/FULL and the DISCHARGElamps. If either is illuminated, the dischargesystem will not operate.


Check motor overloads relays.


If the unloading system fails to start:

Check the control panel switch positions.

Check the DRY/FULL and the DISCHARGElamps. If either is illuminated, the dischargesystems will not operate.


Check the overload relays.

Check that main power switch is on.

SHUT DOWN PROCEDURE

Turn off the fuel supply at its source. (Propane tank or gas valve furthest away from dryer).

Allow the burner(s) to operate until all fuel in the lines has been consumed.

Close the quick shut-off valves.

Turn off all switches except the blower switch(es).

Allow blower(s) to operate for sufficient time to cool grain. Usually 15 - 20 minutes is adequate.

Turn off blower(s).

Turn off main power supply.

NOTE: ALWAYS INVESTIGATE THE CAUSE OF A TRIPPED CIRCUIT BREAKER OROVERLOAD RELAY AND RECTIFY BEFORE CONTINUING OPERATIONS.

44

DRYER CLEANOUT AND STORAGE

Upon completion of drying on variety of grain or at the end of the season, the dryer should becompletely cleaned out. This can be done simply in the NECO dryer by swinging open the cleanout door handles. This allows the trough under the augers and meters to fall open. By openingand closing them rapidly it will knock any lodged kernels free. Then by turning the dischargeswitch on it will rotate the meters allowing the kernels to fall off the top of them. The rear clean outtrough can be opened to clean the rear auger. The machine should now be completely free of anygrain.

CAUTION: TO AVOID INJURY TO LIMBS, DO NOT LOWER REAR TROUGHWHILE MACHINE IS RUNNING.

For storage, these doors should be left open so that rain may fall through. This eliminates grainrotting, sprouting, rusting of the machine and the need for a roof. To reclose them, a person mayhave to assist the outside door with their hands.

The belts should be loosened and removed. They should be stored in a dark place.

The chains should be removed and lubricated, then stored in an air tight container.

Any scratches should be painted to preserve the appearance of the machine.

45

MAINTENANCE

LUBRICATION

The NECO dryer has a very minimum number of moving parts and therefore lubrication is at aminimum as well. All the bearings are sealed to minimize lubrication requirements. Below is aschedule of necessary lubrication.

BEARING OR PART PERIOD (or hours in use)

Gearbox, Cross Auger - 80/90 Gear Oil 1/2 Full . . . . . . . . . . . . . . . . . . Check Weekly (100 hrs.)

Fan Shaft Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Weekly (100 hrs.)

Rear Cross Auger Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Weekly (100 hrs.)

Sealed Meter and Auger Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil (Seasonally)

Roller Chains for Metering rolls and Discharge Augers . . . . . . . . . . . . . . . . Oil Weekly (100 hrs.)

CAUTION: DO NOT go near shafts or any augers or any moving part if themachine is running. DO NOT go up the ladder if the machine is running.

NOTE: Clean the plenum daily or when trash accumulates and before storage or over winter.Always leave the cleanout doors open when dryer is not in use to allow rain, etc. to pass through.

NOTE: On greaseable sealed bearings, DO NOT OVER GREASE. Over greasing will force outthe seals causing contamination and rapid bearing wear from dust.

GAS PORTS

Conduct initial inspection within the first month after commissioning. Visually check the gas portsof new burner assemblies for any piping scale or debris. Use a pin vise and a #47 drill bit toremove any blockages (do not use an electric drill).

Annual inspections are normally adequate once the initial piping debris is removed. The operat-ing conditions of the burner will determine how frequently maintenance is actually required.

SOLENOID VALVES

All solenoid valves should be cleaned periodically. The time between cleanings will vary depend-ing on the medium and service conditions. In general, if the voltage to the coil is correct, sluggishvalve operation, excessive noise, or leakage will indicate that cleaning is required. In the extremecase, faulty valve operation will occur and the valve may fail to open or close. See the additionalinstructions located at the end of this manual for the correct cleaning procedure.

46

This page is left blank intentionally.

47

APPENDIX

GRAIN DRYING TERMS &DEFINITIONS

The following terms are more commonly used in grain drying. You will find these helpful in gaininga thorough understanding of grain drying.

Aeration: The moving of air through stored grain at low air-flow rates generally between 0.2 and1.1 CFM per bu. for purposes of cooling and ventilating the grain.

Air Pressure Switch: (Static Pressure Switch) A switch controlled by the air pressure in theplenum chamber. Should air pressure be relieved, this switch breaks contact and stops the flow ofelectrical current to the solenoid valve, thus shutting off the fuel supply to the heating unit.

Air Velocity: The speed of air flow in feet per minute through a given cross sectional area. Thisis determined by dividing the quantity of air flow in cu. feet per minute by the cross sectional areaof the air passage.

Ambient Temperature: Outside air or atmospheric temperature.

Automatic Temperature Control: A mechanical device located in the fuel system of the heatunit which controls the fuel flow at the burner orifice to maintain constant temperature.

B.T.U. (British Thermal Unit): A measure of quantity of heat. (One B.T.U. will raise the tempera-ture of one pound of water 1 degree Fahrenheit.)

B.T.U. per hr.: A common standard by which a heating unit is rate. ( A heating unit is usuallyrated at its maximum output. It is also written B.T.U.H.)

Bushel: One bushel equals 1.2 cu. ft. for purposes of calculations.

C.F.M. (cubic ft. per minute): Fans are rated at so many C.F.M. at a given R.P.M. workingagainst a determined static pressure. Fan design determines at what R.P.M. and in what staticpressure range the fan will operate most efficiently.

Continuous Heated Air Drying: Relatively shallow columns of grain flow down through the dryercontinuously with air passing through.

Cooling Cycle: (Common to Batch Type Dryer) The period of time that grain in the tank issubjected to air movement by the fan without the burner being lighted. Grain should be cooled

48

down to within 20 to 30 degrees F. of ambient temperature or 40 degrees F. after being dried withsupplemental heat, whichever is warmer.

Drying Period: The period of time the grain is subjected to drying air. The length of the dryingperiod will be determined by these factors: (1) kind of grain being dried; (2) moisture content ofthe grain; (3) moisture content desired in the finished grain; (4) air flow per bushel; (5) cleanlinessof grain in the dryer.

Drying Front: Point at which air traveling through the grain reaches the equilibrium moisturecontent of the grain and cannot pick up any more moisture.

Drying Zone: A layer of grain in which moisture content is being reduced at any given timeduring the drying process and includes the drying front.

Exhausted Air: The air leaving the grain after having absorbed as much moisture as possible.

Heat of Vaporization: It takes 1060 B.T.U.’s to evaporate 1 pound of water (theoretically).

Heated Air Drying: The drying which is done with high air-flow rates along with high dryingtemperatures at 100 degrees to 160 degrees F. This type of drying is used in batch, recirculatingcontinuous flow, truck, and big batch dryer.

High Temperature Limit Switch: A safety switch is actuated when the heat-sensing elementexceeds the control dial setting. This switch will break contact and disrupt the flow of electricalcurrent.

L.P. Gas: A petroleum product normally stored and transported as a liquid under pressure. Boil-ing point is (-44 degrees F) and, therefore, has little vapor pressure at very cold temperatures.

Linkage: Operates Flow-Control Valve.

Flow-Control Valve: Controls the amount of fuel the burner receives. Designed for throttlingservice and is not intended for tight shutoff.

Temperature Controller: Sends a signal to Modulating Motor which operates the Flow-ControlValve regulating dryer plenum temperature.

Thermocoupler Sensor: Senses plenum temperature and sends a signal to TemperatureController.

Manometer: A “U” shaped transparent tube partially filled with liquid (water) of a definite specificgravity. One end of the tube is connected to the plenum chamber, while the other end is vented toatmospheric pressure. In measuring the difference between plenum pressure and atmosphericpressure we arrive at the static pressure. This is the difference, in inches, between the heights ofthe two water columns.

Moisture Content: The moisture content of a material is measured by dividing the weight of thewater which it contains by the total weight of the material and water.

49

Moisture Rebound: When moisture is removed from kernels of grain very rapidly, it will beremoved from the surface faster than the interior of the kernel. After this grain is allowed to sit fora period of time, the moisture will even out within the kernel. This phenomena, when observed ona moisture meter, shows the grain testing drier than it actually is when taken from the dryer.

Natural Air Drying: Drying with low air flow of 3 to 15 C.F.M. per bu. and no heat, or just a littleheat to bring the humidity of the air to the desired level to give dryness wanted in the dried grain.This drying is associated with multiple-layer drying, in-storage grain drying and bin or buildingdrying.

Plenum: An enclosed volume of moving air under greater pressure than the surrounding con-tainer. Size and shape of the plenum area has a direct effect on fan performance and air distribu-tion. In a dryer, the air entering this area is heated.

Point of Equilibrium: The point at which grain and the surrounding air are in equilibrium in vaporpressure. Under these conditions, no transfer of moisture will take place.

Pressure Regulator: A mechanical unit which, through use of diaphragm, spring and valve,reduces a high fluctuating pressure to a lower steady pressure.

PSI (pounds per square inch): A unit to measure the intensity of pressure.

Relative Humidity: A measure of the moisture content of the air relative to fully saturated air.

Relief Valve: A valve which protects the fuel system against excessive pressures.

R.P.M. (revolutions per minute): The common method of expressing the speed of rotatingparts.

Solenoid Valve: A valve which is normally closed and opened by electro-magnetic pull on thesolenoid plunger as current passes throughout the solenoid coil.

Static Pressure: A measure of the air pressure in the plenum chamber. (Usually expressed ininches of water column.) Small kernel grains (such as rapeseed and flax and feed grains packclose together and offer greater resistance to air movement than corn, thus causing higher staticpressures to develop and, consequently, a lower fan volume flow).

Temperature Rise: The difference between ambient temperature and plenum temperature isreferred to as the temperature rise. A thermometer is provided to register temperature rise insome dryers.

50

This page is left blank intentionally.

51

TROUBLESHOOTINGGUIDE

52

Will

not

FIL

L in

AU

TO

Blo

wer

will

not

sta

rt

PO

WE

R la

mp

not i

llum

inat

ed.

PO

WE

R la

mp

illum

inat

ed.

The

re a

re tw

o la

mps

on

the

timer

itsel

f. T

he b

otto

m la

mp

indi

cate

s th

atth

e tim

er is

tim

ing

out.

Bot

h la

mps

on

indi

cate

that

the

timer

has

tim

ed o

ut.

Lam

ps o

n tim

er a

re n

ot il

lum

inat

ed.

5TR

tim

er n

ot ti

min

g.

Bot

h la

mps

on

timer

are

illu

min

ated

,bu

t mot

or d

oes

not s

tart

.

Wet

bin

em

pty

light

on

and

a lo

w b

inle

vel s

witc

h in

stal

led.

Wet

bin

em

pty

light

on

and

low

bin

leve

l sw

itch

not i

nsta

lled.

PO

WE

R la

mp

not i

llum

inat

ed.

Circ

uit b

reak

er in

pan

el h

as tr

ippe

d.

Ove

rload

on

blow

er m

otor

con

tact

ortr

ippe

d.

Is th

e D

isch

arge

Plu

gged

lam

p on

.

No

pow

er to

the

drye

r

Are

you

wai

ting

long

eno

ugh

for d

elay

on ti

mer

(5T

R) t

o en

ergi

ze.

Leve

l aug

er s

witc

h on

top

of d

ryer

stuc

k in

the

full

posi

tion.

Mot

or o

verlo

ad(s

) hav

e tr

ippe

d.

Low

gra

in in

Wet

hol

ding

bin

.

Loos

e or

mis

sing

jum

per w

ire o

nte

rmin

als

7 to

term

inal

9.

No

pow

er to

the

drye

r.

Som

eone

had

turn

ed b

reak

er o

ff or

som

ethi

ng h

as c

ause

d it

to tr

ip.

Blo

wer

mot

or o

verlo

ad.

Gra

in is

aga

inst

the

Dis

char

geP

lugg

ed s

witc

h.

Tur

n on

pow

er to

the

drye

r

Wai

t for

on-

dela

y tim

er to

tim

e ou

t. 5t

rtim

er d

elay

s th

e st

art o

f the

fill

auge

rco

ntac

tor.

Thi

s is

nor

mal

ly s

et fo

r 10

seco

nds.

Uns

tick

switc

h an

d co

rrec

t if n

eces

-sa

ry.

Res

et W

et A

uger

(2M

) and

Lev

elA

uger

(4M

) ove

rload

rela

ys

Fill

with

gra

in.

Tig

hten

or i

nsta

ll ju

mpe

r wire

from

term

inal

7 to

term

inal

9.

Tur

n on

pow

er to

the

drye

r.

Tur

n br

eake

r bac

k on

. If

circ

uit

brea

ker c

ontin

ues

to tr

ip, t

hen

dete

r-m

ine

the

reas

on fo

r trip

ping

(sho

rted

wire

, etc

.)

Res

et o

velo

ad re

lay.

Che

ck a

mpe

rage

of b

low

er m

otor

lead

s. B

low

er m

otor

will

pul

l the

mos

t am

ps w

hen

drye

rco

olin

g fla

p is

ope

n. If

mot

or is

pul

ling

mor

e th

at th

e na

mep

late

ratin

g, c

heck

for l

oose

con

nect

ions

. If c

onne

ctio

nsar

e tig

ht, t

hen

a sm

alle

r m

otor

pul

ley

will

nee

d to

be

inst

alle

d.

Rem

ove

grai

n fr

om s

witc

h an

d/or

rese

ton

pan

el.

PR

OB

LE

MC

HE

CK

OU

TP

OS

SIB

LE

CA

US

EP

OS

SIB

LE

SO

LU

TIO

N

TR

OU

BL

E S

HO

OT

ING

GU

IDE

53

Blo

wer

will

not

sta

rt.

Blo

wer

sta

rts

on m

omen

tary

and

stop

s w

hen

switc

h is

rel

ease

d.

Blo

wer

sta

rts

and

then

shu

tsdo

wn.

Doe

s th

e Lo

w S

tatic

pre

ssur

e la

mp

com

e on

.

Is th

e Li

mits

Exc

eede

d la

mp

on.

Che

ck p

rope

r lin

e vo

ltage

bet

wee

n H

1- H

4 (2

30 v

olt)

and

bet

wee

n X

1 - X

2(1

20 v

olt)

.

The

Low

Dry

er la

mp

is il

lum

inat

ed.

Gra

in is

abo

ve th

e sw

itch,

but

the

Low

Dry

er la

mp

is o

n.

Aux

illia

ry s

witc

h (5

OL)

on

blow

erco

ntac

tor n

ot a

llow

ing

curr

ent t

o pa

ss.

4TR

tim

er n

ot p

lugg

ed in

.

Low

Sta

tic p

ress

ure

lam

p co

mes

on

whe

n fu

el s

witc

h is

turn

ed to

aut

o.

The

Fue

l sw

itch

is in

the

auto

or

man

ual p

ositi

on.

A h

igh

tem

pera

ture

lim

it co

nditi

on h

assh

ut d

own

the

drye

r

Con

trol

tran

sfor

mer

prim

ary

fuse

s(2

FU

& 3

FU

) or 1

FU

sec

onda

ry fu

seha

s bl

own.

Gra

in is

bel

ow th

e lo

w d

ryer

sw

itch

onth

e si

de o

f the

dry

er.

The

Low

Dry

er s

witc

h ha

s st

uck.

Loos

e w

ire o

n au

xilli

ary

switc

h.D

irt o

r gra

in p

artic

al in

terf

erei

ng w

ithco

nta

cts.

Tim

er h

as b

ecom

e lo

ose.

Air

switc

h is

not

adj

uste

d co

rrec

tly.

Tur

n F

uel s

witc

h of

f and

rese

t Low

Sta

tic p

ress

ure

on p

anel

. D

o no

t tur

nth

e fu

el o

n un

til th

e bl

ower

has

pres

suriz

ed th

e pl

enum

.

Che

ck d

ryer

for r

easo

n of

hig

h te

m-

pera

ture

lim

it. C

heck

set

ting

of h

igh

limit

switc

h. R

eset

hig

h lim

it on

pan

el.

If no

vol

tage

read

ing

betw

een

H1

- H4

(230

vol

t) th

en 2

FU

and

/or 3

FU

fuse

has

blow

n. R

epla

ce b

low

n fu

se. I

f no

volta

ge b

etw

een

X1

- X2

(120

vol

t) th

entr

ansf

orm

er m

ay b

e ba

d. R

epla

cetr

ansf

orm

er. I

f the

re is

vol

tage

acr

oss

X1

- X2,

then

che

ck a

cros

s 1F

U fu

se.

If no

vol

tage

acr

oss

1FU

, the

n fu

seha

s bl

own.

Rep

lace

fuse

.

Gra

in m

ust b

e ab

ove

this

sw

itch

for

the

blow

er to

run.

Try

ing

to s

tart

the

blow

er m

ay c

ause

the

grai

n to

shi

ft an

d se

ttle

agai

nst t

helo

w d

ryer

sw

itch,

fixi

ng th

e pr

oble

m.

Gai

n ac

cess

to th

e sw

itch

and

tap

ondi

aphr

am to

uns

tick

switc

h.

Tig

hten

wire

s.In

spec

t and

cle

an.

Mak

e su

re ti

mer

is s

ecur

ely

inse

rted

into

bas

e.

Loos

en la

rge

nut o

n to

p of

air

switc

han

d ba

ck th

e th

read

ed c

olla

r out

of t

hesw

itch

¼ tu

rn.

PR

OB

LE

MC

HE

CK

OU

TP

OS

SIB

LE

CA

US

EP

OS

SIB

LE

SO

LU

TIO

N

54

Blo

wer

runs

and

then

shu

ts d

own.

Dry

er d

oes

not t

ry fo

r ign

ition

.

Blo

wer

is ru

nnin

g an

d ig

nitio

n lig

htco

mes

on,

but

pilo

t doe

s no

t lig

ht.

Blo

wer

mot

or p

ullin

g to

o m

any

amps

.

Blo

wer

mot

or a

mp

read

ings

with

inlim

its.

Che

ck p

ositi

ons

of s

witc

hes

Che

ck fo

r loo

se re

lays

.

The

pow

er L

ED

on

the

Hon

eyw

ell

Fla

me

Saf

egua

rd is

not

lit.

The

pow

er L

ED

on

the

Hon

eyw

ell

Fla

me

Saf

egua

rd is

lit.

Lack

of f

uel

Ove

rload

rela

y m

ay b

e tr

ippi

ng.

Hea

ter

strip

s m

ay b

e th

e w

rong

siz

e.

Fue

l sw

itch

not t

urne

d to

aut

o.

Fun

ctio

n sw

itch

not i

n S

tart

pos

ition

.

"F"

rela

y no

t plu

gged

in.

Hon

eyw

ell m

ay n

eed

to b

e re

set

Bur

ner r

eset

rod

not a

djus

ted

cor-

rect

ly a

nd p

ushi

ng re

set b

utto

n on

Hon

eyw

ell F

lam

e S

afeg

uard

.

Tim

er c

ard

in H

oney

wel

l bad

or

mis

sing

.

Has

fuel

bee

n tu

rned

on

at th

e su

pply

.

Are

man

ual s

huto

ff va

lves

ope

n on

the

drye

r.

The

re m

ay b

e ai

r in

the

fuel

line

.

Che

ck a

mpe

rage

of b

low

er m

otor

lead

s. B

low

er m

otor

will

pul

l the

mos

tam

ps w

hen

drye

r coo

ling

flap

is o

pen.

If m

otor

is p

ullin

g m

ore

that

the

nam

epla

te ra

ting,

che

ck fo

r loo

seco

nnec

tions

. If c

onne

ctio

ns a

re ti

ght

then

a s

mal

ler m

otor

pul

ley

will

nee

dto

be

inst

alle

d.

Inst

all c

orre

ct h

eate

r str

ips.

Tur

n fu

el s

witc

h to

aut

o po

sitio

n.

Tur

n F

unct

ion

switc

h to

sta

rt p

ositi

on.

Mak

e su

re "

F"

rela

y is

sec

urel

yin

sert

ed in

to b

ase.

Pus

h re

set b

utto

n on

cov

er o

fH

oney

wel

l Fla

me

Saf

guar

d.

Adj

ust o

r sho

rten

rod

to p

rope

r len

gth.

Rep

lace

or s

ecur

e tim

er c

ard

Tur

n on

fuel

at t

he s

uppl

y.

Ope

n m

anua

l shu

toff

ball

valv

es o

ndr

yer f

uel l

ine.

Let d

ryer

cyc

le s

ever

al ti

mes

to p

urge

air

from

sys

tem

.

PR

OB

LE

MC

HE

CK

OU

TP

OS

SIB

LE

CA

US

EP

OS

SIB

LE

SO

LU

TIO

N

TR

OU

BL

E S

HO

OT

ING

GU

IDE

55

Blo

wer

is ru

nnin

g an

d ig

nitio

n lig

htco

mes

on,

but

pilo

t doe

s no

t lig

ht.

Lack

of f

uel

Lack

of i

gniti

on.

Liqu

id s

olen

oid

valv

es n

ot o

peni

ng.

Pilo

t sol

enoi

d va

lve

not o

peni

ng.

Not

eno

ugh

fuel

pre

ssur

e.

Too

muc

h fu

el p

ress

ure.

Igni

tor p

lug

dirt

y an

d/or

gap

not

set

corr

ectly

.

Igni

tion

tran

sfor

mer

not

wor

king

.

Whe

n th

e fu

el s

witc

h is

mov

ed to

the

auto

pos

ition

, the

liqu

id s

olen

oid

valv

es s

houl

d cl

ick

(LP

uni

ts).

Pla

ceyo

ur h

and

on th

e so

leno

ids

to c

heck

for

the

clic

k. Y

ou s

houl

d be

abl

e to

read

pre

ssur

e on

the

fuel

gua

ge a

bove

the

sole

noid

s at

this

tim

e. If

not

,ch

eck

to s

ee th

at th

ere

is p

ower

toth

e liq

uid

sole

noid

term

inal

s in

the

pane

l. If

ther

e is

and

all

conn

ectio

nsar

e go

od, r

epla

ce s

olen

oid(

s).

30 s

econ

ds a

fter

the

fuel

sw

itch

ism

oved

to th

e au

to p

ositi

on, t

he p

ilot

sole

noid

val

ve s

houl

d op

en.

Che

ck fo

rth

is b

y pl

acin

g yo

ur h

and

on th

eso

leno

id to

see

if it

clic

ks. I

f it d

oes

not

clic

k, c

heck

to

see

that

the

re is

pow

er to

the

liqui

d so

leno

id te

rmin

als

in th

e pa

nel.

If th

ere

is p

ower

and

all

conn

ectio

ns a

re g

ood,

repl

ace

sole

noid

.

Adj

ust r

egul

ator

.

Adj

ust r

egul

ator

.

Cle

an p

lug

and

adju

st g

ap to

3/1

6"

Look

ing

thro

ugh

the

view

win

dow

on

the

rear

of t

he d

ryer

, che

ck to

see

ifth

ere

is a

spa

rk.

Che

ck to

see

that

ther

e is

pow

er to

the

tran

sfor

mer

term

inal

s in

the

pane

l. If

ther

e is

pow

er a

nd a

ll co

nnec

tions

are

goo

d,re

plac

e tr

ansf

orm

er.

PR

OB

LE

MC

HE

CK

OU

TP

OS

SIB

LE

CA

US

EP

OS

SIB

LE

SO

LU

TIO

N

56

Blo

wer

is ru

nnin

g an

d pi

lot i

sbu

rnin

g, b

ut b

urne

r doe

s no

t lig

ht.

Blo

wer

is ru

nnin

g an

d bu

rner

ison

, but

bur

ner g

oes

out w

hen

turn

ing

func

tion

switc

h fr

omS

TAR

T to

INT

ER

LOC

K.

Dry

er is

runn

ing

fine

for a

nes

tabl

ishe

d tim

e, b

ut th

en lo

ses

burn

er.

Dry

er is

runn

ing

fine

for a

nes

tabl

ishe

d tim

e, b

ut th

en lo

ses

burn

er.

(Equ

iped

with

dry

full

switc

h)

Bur

ner i

ndic

ator

ligh

t doe

s no

t com

e

Pos

ition

of s

witc

hes

on p

anel

.

Sw

itche

s O

.K.

still

shu

ts d

own

Blo

wer

is s

till r

unni

ng.

Blo

wer

is s

till r

unni

ng, L

ow d

ryer

lam

pis

on.

Blo

wer

is s

till r

unni

ng, D

ry b

in fu

llla

mp

is o

n.on

.

Min

i-pee

per (

Fire

eye

) not

see

ing

flam

e.

Mai

n fu

el s

olen

oid

not e

nerg

izin

g

Dis

char

ge s

witc

h no

t in

AU

TO

.

Dis

char

ge c

onta

ctor

(s) o

verlo

adtr

ippe

d (1

M &

3M

)

Con

tact

or 1

M a

uxill

ary

switc

h no

tcl

osin

g. (

On

side

of c

onta

ctor

)

Min

i-pee

per l

osin

g si

ght o

f fla

me.

Low

dry

er s

witc

h, D

ryer

has

run

out o

fgr

ain

to d

ry a

nd is

tim

ing

out t

o sh

utdo

wn.

Gra

in b

in is

full

and

drye

r is

tim

ing

out

to s

hut d

own.

Cle

an o

r rep

lace

min

i-pee

per a

sne

eded

.

Che

ck w

ire c

onne

ctio

ns a

t jun

ctio

nbo

x an

d at

term

inal

str

ip in

mai

n pa

nel

Term

inal

#45

( #7

0, #

90 fo

r mul

tiple

burn

ers)

. If c

onne

ctio

ns a

re g

ood

chec

k th

at s

olen

iod

clic

ks if

not

dete

rmin

e th

at p

ower

is g

ettin

g to

sole

noid

, if s

o re

plac

e so

leno

id.

Dis

char

ge s

witc

h ne

eds

to b

e in

AU

TO

or

drye

r w

ill ti

me

out a

nd s

hut

dow

n.

Res

et o

verlo

ad

Adj

ust o

r re

plac

e sw

itch

as n

eces

-sa

ry.

Cle

an m

ini-p

eepe

r and

che

ck fo

rob

stru

ctio

ns in

to b

urne

r.

Add

mor

e gr

ain

to d

ryer

to c

ontin

uedr

ying

.

Che

ck o

ut lo

w d

ryer

sw

itch

for

poss

ible

obs

truc

tions

and

dam

age,

repl

ace

switc

h if

nece

ssar

y.

Mor

e st

orag

e is

nee

ded

for d

ryer

.

PR

OB

LE

MC

HE

CK

OU

TP

OS

SIB

LE

CA

US

EP

OS

SIB

LE

SO

LU

TIO

N

TR

OU

BL

E S

HO

OT

ING

GU

IDE

57

PR

OB

LE

MC

HE

CK

OU

TP

OS

SIB

LE

CA

US

EP

OS

SIB

LE

SO

LU

TIO

N

Dry

er is

runn

ing

fine

for a

nes

tabl

ishe

d tim

e, b

ut th

en s

huts

dow

n.

Low

dry

er la

mp

is o

n.

Low

sta

tic p

ress

ure

rese

t but

ton

illum

inat

ed.

Hig

h lim

it re

set b

utto

n ill

umin

ated

.

Hig

h lim

it re

set b

utto

n ill

umin

ated

,ha

ppen

s as

sho

rtly

as

burn

er is

on

for

a fe

w m

inut

es.

Dry

er ra

n ou

t of g

rain

and

has

gon

eth

roug

h au

tom

atic

shu

tdow

n.

The

set

ting

on th

e 5T

R ti

mer

is to

hig

han

d th

e dr

yer i

s ru

nnig

out

of g

rain

befo

re it

can

be

repl

enis

hed

with

wet

grai

n.

On

very

win

dy d

ays

it is

pos

sibl

e th

atth

e w

ind

cont

inuo

usly

trip

s ou

t the

fill

switc

h to

the

leve

l aug

er, t

here

bysh

utin

g of

f the

sup

ply

of g

rain

bef

ore

drye

r is

full.

Air

switc

h ha

s de

tect

ed lo

w s

taic

pres

sure

in th

e pl

enum

.

Ple

num

tem

pera

ture

has

reac

hed

the

setti

ng fo

r hi

gh li

mit.

Fue

l pre

ssur

e m

ay b

e se

t to

high

or

ther

e is

a v

ery

larg

e di

ffere

nce

inte

mpe

ratu

re s

ettin

g an

d am

bien

t.

Dry

er n

eeds

a n

ew s

uppl

y of

gra

in a

ndre

star

ted.

Adj

ust 5

TR

tim

er to

low

er s

ettin

g, b

utto

muc

h to

whe

re th

e le

vel a

uger

istu

rnin

g on

and

off

mor

e th

an n

eede

d.

If po

ssib

le, t

ry b

lock

ing

off w

ind

soth

at it

is n

ot d

irect

ly b

low

ing

onsw

itch,

and

adj

ust 5

TR

tim

er to

Zer

oso

that

ther

e is

no

time

dela

y on

fillin

g. R

emem

ber t

o re

set

5TR

whe

nw

eath

er c

lear

s.

Che

ck th

at n

othi

ng is

blo

ckin

g th

e ai

rtu

be in

side

the

plen

um, a

nd th

at th

eai

r tub

e is

faci

ng th

e bl

ower

. Pus

hre

set b

utto

n an

d re

star

t dry

er. I

fpr

oble

m p

ersi

sts

the

air

switc

h m

ayne

ed a

djus

tmen

t.

Che

ck h

igh

limit

setti

ng w

ith te

mpe

ra-

ture

set

ting

the

drye

r is

ope

ratin

g at

.T

he h

igh

limit

cont

rolle

r is

not

a r

eal

prec

ise

inst

rum

ent,

ther

efor

e te

mpe

ra-

ture

set

at m

ay b

e of

f as

muc

h as

ten

degr

ees.

Adj

ust h

igh

limit

if ne

cess

ary

push

rese

t but

ton

and

rest

art d

ryer

.W

atch

the

drye

r run

for a

whi

le a

ndde

term

ine

that

eve

ryth

ing

is s

afe.

Bac

k of

f fue

l pre

ssur

e, o

r bac

k of

fte

mpe

ratu

re s

ettin

g un

til b

urne

r is

on,

grad

ually

incr

ease

to d

esire

d te

mpe

ra-

ture

58

Dry

er is

runn

ing

fine

for a

nes

tabl

ishe

d tim

e, b

ut th

en s

huts

dow

n.

Dry

er is

runn

ing,

all

func

tion

switc

hes

are

in p

rope

r pos

ition

,bu

t gra

in w

ill n

ot m

eter

out

.

Plu

gged

dis

char

ge re

set b

utto

nill

umin

ated

.

Is th

ere

pow

er to

the

moi

stur

e co

ntro

l-le

r.( A

re a

ny o

f the

red

ligh

ts o

n in

side

the

moi

stur

e co

ntro

ller b

ox.)

The

re's

pow

er to

the

moi

stur

e co

ntro

l-le

r, bu

t mot

or is

not

turn

ing

met

erin

gro

lls.

Plu

gged

dis

char

ge s

witc

h ha

s be

entr

ippe

d at

rear

cro

ss a

uger

.

Is 3

M-A

aux

illar

y co

ntac

tor

switc

hcl

osin

g.

Is p

ower

sw

itch

ON

insi

de m

oist

ure

cont

rolle

r box

.

Plu

g in

at b

otto

m o

f moi

stur

e co

ntro

l-le

r ful

ly c

onne

cted

.

Blo

wn

fuse

on

moi

stur

e co

ntro

ller

pane

l.

If m

oist

ure

cont

olle

r is

in m

anua

lm

ode,

and

spe

ed d

ial i

s se

t at v

ery

low

set

ting.

Che

ck d

rive

belts

for p

rope

r ten

sion

and

driv

e ch

ains

for r

ear c

ross

aug

erar

e on

and

adj

uste

d. M

ake

sure

pow

eris

off

and

unpl

ug a

uger

. Pus

h re

set

butto

n an

d re

star

t dry

er.

Cle

an a

nd a

djus

t or i

f nec

essa

ryre

plac

e au

xilla

ry s

witc

h.

Tur

n on

sw

itch.

Pus

h pl

ug in

com

plet

ely

on.

Rep

lace

fuse

with

pro

per a

mpe

rage

ratin

g.

Mom

enta

rily

incr

ease

spe

ed d

ial t

ow

here

the

met

erin

g ro

lls tu

rn a

cou

ple

of re

volu

tions

and

retu

rn to

pre

viou

sse

tting

.

PR

OB

LE

MC

HE

CK

OU

TP

OS

SIB

LE

CA

US

EP

OS

SIB

LE

SO

LU

TIO

N

TR

OU

BL

E S

HO

OT

ING

GU

IDE

59

REPLACEMENT PARTS

60

16' U

NL

OA

D A

UG

ER

/ C

LE

AN

OU

T D

OO

RR

epla

cem

ent P

arts

Figure 19.

61

RE

F.

QT

Y.

PA

RT

NO

.D

ES

CR

IPT

ION

12

7712

705

CLE

AN

OU

T D

OO

R H

AN

DLE

RIG

HT

NO

T S

HO

WN

277

1272

3C

LEA

NO

UT

DO

OR

HA

ND

LE L

EF

T2

877

1272

6C

AB

LE S

WIV

EL

CLE

AN

OU

T D

OO

R H

AN

DLE

38

7712

689

1/2"

PU

SH

CA

P4

1600

2078

3/16

" C

AB

LE C

LAM

P5

477

1273

1C

AB

LE A

SS

EM

BLY

WIT

H S

TOP

59"

477

1273

6C

AB

LE A

SS

EM

BLY

WIT

H S

TOP

66"

68

7612

441

CLE

AN

OU

T D

OO

R E

ND

PIN

78

0447

74C

LEA

NO

UT

DO

OR

INN

ER

CLO

SU

RE

88

0442

09C

LEA

NO

UT

DO

OR

OU

TER

CLO

SU

RE

94

0443

26O

UTE

R C

LEA

NO

UT

DO

OR

WE

LDM

EN

T10

404

4325

INN

ER

CLE

AN

OU

T D

OO

R W

ELD

ME

NT

114

7612

442

CE

NTE

R C

LEA

NO

UT

DO

OR

PIN

124

0446

43R

EA

R M

ETE

RIN

G R

OLL

SH

AF

T13

104

4673

RE

AR

DR

IVE

SH

AF

T C

LEA

NO

UT

AU

GE

RN

OT

SH

OW

N1

0446

46R

EA

R ID

LER

SH

AF

T C

LEA

NO

UT

AU

GE

R14

204

4638

RE

AR

UN

LOA

D A

UG

ER

158

0446

41E

XTR

UD

ED

ALU

MIN

UM

ME

TER

ING

RO

LL16

404

4642

CE

NTE

R M

ETE

RIN

G R

OLL

SH

AF

T17

3203

5116

BE

AR

ING

HO

LDE

R F

LAN

GE

TTE

1812

0367

841-

1/8"

WO

OD

BE

AR

ING

194

0446

47H

AN

GE

R B

EA

RIN

G H

OLD

ER

HA

LF20

204

4171

CE

NTE

R C

ON

NE

CTI

NG

SH

AF

T A

UG

ER

212

0352

971-

1/4"

SP

LIT

WO

OD

BE

AR

ING

222

0449

79F

RO

NT

UN

LOA

D A

UG

ER

2316

0030

761/

2" X

2-1

/2"

ZIN

C B

OLT

244

0446

44F

RO

NT

ME

TER

ING

RO

LL D

RIV

E S

HA

FT

252

0449

53C

LEA

NO

UT

AU

GE

R D

RIV

E S

HA

FT

261

0449

75B

OLT

-ON

HIT

CH

WE

LDM

EN

T27

134

1101

1JA

CK

28

177

1256

3H

ITC

H C

LEV

IS P

IN29

128

0025

1H

ITC

H C

LEV

IS30

117

0026

01/

4" X

2"

CO

TTE

R P

IN31

1676

1246

03/

8" L

BO

LT Z

INC

PLA

TED

321

0443

2416

' FR

AM

E W

ELD

ME

NT

16' U

NL

OA

D A

UG

ER

/ C

LE

AN

OU

T D

OO

RR

epla

cem

ent P

arts

62

DIS

CH

AR

GE

DR

IVE

SR

epla

cem

ent P

arts

Figure 20.

63

RE

F.

QT

Y.

PA

RT

NO

.D

ES

CR

IPT

ION

14

0446

22S

PR

OC

KE

T R

C50

33 1

-1/8

" B

OR

E2

3203

5116

BE

AR

ING

HO

LDE

R F

LAN

GE

TTE

312

0367

841-

1/8"

WO

OD

BE

AR

ING

44

0446

44F

RO

NT

ME

TER

ING

RO

LL D

RIV

E S

HA

FT

51

0449

37R

.H.

DIS

CH

AR

GE

DR

IVE

SH

IELD

61

0404

38 B

X150

NO

TCH

ED

BE

LT7

303

6190

1-1/

4" P

ULL

EY

BU

SH

ING

82

0404

36B

K8.

0 B

RO

WN

ING

PU

LLE

Y9

404

4756

1-1/

4" B

EA

RIN

G IN

SE

RT

FA

FN

IR10

204

4953

CLE

AN

OU

T A

UG

ER

DR

IVE

SH

AF

T11

17'

0021

16#

50 R

OLL

ER

CH

AIN

121

1596

700

1/2"

X 5

" B

OLT

ZIN

C13

104

0102

UH

MW

CH

AIN

IDLE

R 2

"RD

141

0445

2190

V 1

/8H

P G

EA

RM

OTO

R15

104

4576

90V

MO

TOR

MO

UN

T B

RA

CK

ET

WE

LDM

EN

T16

104

4623

SP

RO

CK

ET

50B

10 5

/8"

BO

RE

173

0367

14S

PR

OC

KE

T ID

LER

501

3 1/

2" B

OR

E18

104

0425

BE

LT T

EN

SIO

NE

R P

IVO

T P

LATE

191

0404

28B

ELT

TE

NS

ION

ER

PIV

OT

SP

AC

ER

201

0030

781/

2" X

3-1

/2"

BO

LT Z

INC

211

0364

82P

ULL

EY

5"

FLA

T ID

LER

1/2

" B

OR

E22

102

5259

BE

LT T

EN

SIO

NE

R T

HR

EA

DE

D R

OD

231

0250

64B

ELT

TE

NS

ION

ER

EXP

AN

SIO

N S

PR

ING

241

0449

38L.

H.D

ISC

HA

RG

E D

RIV

E S

HIE

LD25

121

0208

2P

ULL

EY

BK

150

1GR

. B

RO

WN

ING

261

0447

51IN

SID

E S

PR

OC

KE

T A

DJU

STM

EN

T B

RA

CK

ET

271

0446

54O

UTS

IDE

SP

RO

CK

ET

AD

J. B

RA

CK

ET

2812

0032

181/

4" x

2"

RO

LL P

IN

DIS

CH

AR

GE

DR

IVE

SR

epla

cem

ent P

arts

64

RE

AR

CR

OS

S A

UG

ER

Rep

lace

men

t Par

ts

Figure 21.

65

RE

F.

QT

Y.

PA

RT

NO

.D

ES

CR

IPT

ION

12

0449

42R

EA

R C

RO

SS

AU

GE

R G

UA

RD

AS

SE

MB

LY2

104

0440

PLU

GG

ED

DIS

CH

AR

GE

SW

ITC

H3

104

4646

RE

AR

IDLE

R S

HA

FT

CLE

AN

OU

T A

UG

ER

432

0351

16B

EA

RIN

G H

OLD

ER

FLA

NG

ETT

E5

404

4756

1-1/

4" B

EA

RIN

G IN

SE

RT

FA

FN

IR6

276

1013

0R

EA

R C

LEA

NO

UT

BE

AR

ING

BR

AC

KE

T7

104

4652

RE

AR

CR

OS

S A

UG

ER

IDLE

R S

HA

FT

82

0447

571-

1/4"

PIL

LOW

BLO

CK

BE

AR

ING

916

0030

761/

2" X

2-1

/2"

ZIN

C B

OLT

101

0446

50R

EA

R C

RO

SS

AU

GE

R1

0441

11R

EA

R C

RO

SS

AU

GE

R C

EN

TER

DIS

CH

AR

GE

111

0400

097

RE

AR

TR

OU

GH

HIN

GE

121

0446

28C

RO

SS

AU

GE

R T

RO

UG

H L

EF

T H

AN

D1

0446

29C

RO

SS

AU

GE

R T

RO

UG

H R

IGH

T H

AN

D1

0446

30C

RO

SS

AU

GE

R T

RO

UG

H C

EN

TER

DIS

.13

6'00

2116

# 50

RO

LLE

R C

HA

IN14

203

6495

SP

RO

CK

ET

RC

5020

1-1

/4"

BO

RE

151

0446

73R

EA

R D

RIV

E S

HA

FT

CLE

AN

OU

T A

UG

ER

162

0032

901/

4" X

1-1

/4"

KE

Y17

104

4632

CR

OS

S A

UG

ER

TR

OU

GH

EN

D P

LATE

R.H

.18

104

4631

CR

OS

S A

UG

ER

TR

OU

GH

EN

D P

LATE

L.H

.19

104

4651

RE

AR

CR

OS

S A

UG

ER

DR

IVE

SH

AF

T20

303

6714

SP

RO

CK

ET

IDLE

R 5

013

1/2"

BO

RE

211

0442

11G

EA

RB

OX

CH

AIN

TIG

HTN

ER

BR

AC

KE

T22

203

6707

SP

RO

CK

ET

RC

5020

1"

BO

RE

232

0032

881/

4" X

1"

KE

Y24

101

0078

GE

AR

BO

X A

SS

EM

BLY

RE

AR

CR

OS

S A

UG

ER

Rep

lace

men

t Par

ts

66

BL

OW

ER

DR

IVE

CO

MP

ON

EN

TS

Rep

lace

men

t Par

ts

Figure 22.

67

RE

F.

QT

Y.

PA

RT

NO

.D

ES

CR

IPT

ION

11

0449

66B

LOW

ER

SH

IELD

AS

SY

, RIG

HT

HA

ND

22

0358

05B

ELT

BX

95 N

OT

CH

ED

203

5598

BE

LT B

X93

NO

TC

HE

D2

0446

02B

ELT

BX

97 N

OT

CH

ED

32

7612

580

MO

UN

TIN

G B

RA

CK

ET

, BLO

WE

R B

EA

RIN

G4

VA

RIE

S04

5056

BLO

WE

R B

EA

RIN

G S

HIM

PLA

TE

51

0357

65P

ULL

EY

18.

4 X

2G

R S

K6

112

6009

8P

ULL

EY

BU

SH

ING

2-3

/16"

SK

104

0485

PU

LLE

Y B

US

HIN

G 1

-11/

16"

SK

72

0447

72B

EA

RIN

G 2

-3/1

6" P

ILLO

W B

LOC

K F

AF

NIR

204

4758

BE

AR

ING

1-1

1/1

6" P

ILLO

W B

LOC

K F

AF

NIR

81

0447

71B

LOW

ER

SH

AF

T 2

-3/1

6" X

45-

1/2"

104

0482

BLO

WE

R S

HA

FT

1-1

1/16

" X

47-

1/2"

91

N/A

KE

Y S

UP

PLI

ED

WIT

H P

ULL

EY

BU

SH

ING

101

0033

79K

EY

1/2

" X

1/2

" X

6"

111

0404

39B

LOW

ER

WH

EE

L A

30-2

7H X

2.1

88"

BO

RE

104

4688

BLO

WE

R W

HL

& H

SG

A27

-27H

1.6

88 B

OR

E12

123

0201

1H

OU

SIN

G &

CU

TO

FF

A30

-27H

GA

LVA

NIZ

ED

131

0449

52B

LOW

ER

SH

IELD

AS

SY

, LE

FT

HA

ND

141

0445

04M

OT

OR

MO

UN

T P

LAT

E B

LOW

ER

151

2102

041

PU

LLE

Y 5

.8 X

2G

R S

DS

103

8673

PU

LLE

Y 5

.6 X

2G

R S

DS

104

5037

PU

LLE

Y 5

.4 X

2G

R S

DS

161

0447

69P

ULL

EY

BU

SH

ING

1-7

/8"

SD

S1

1260

101

PU

LLE

Y B

US

HIN

G 1

-5/8

" S

DS

171

7710

280

MO

TO

R 2

0HP

1P

H 2

30V

BA

LDO

R1

0053

75M

OT

OR

20H

P 3

PH

230

& 4

60V

BA

LDO

R1

F04

823

7M

OT

OR

25H

P 3

PH

230

& 4

60V

BA

LDO

R1

0053

69M

OT

OR

15H

P 1

PH

230

V B

ALD

OR

100

5374

MO

TO

R 1

5HP

3P

H 2

30 &

460

V B

ALD

OR

182

0449

50B

LOW

ER

SH

IELD

BR

AC

KE

T W

ELD

ME

NT

BL

OW

ER

DR

IVE

CO

MP

ON

EN

TS

Rep

lace

men

t Par

ts

68

SERV

ICE

VALUE

QUALITY

a Division of GLOBAL Industries, Inc.9364 North 45th Street

Omaha, Nebraska 68112www.necousa.com

Manufactured by

continuous-flow grain dryer - allied grain · pdf file4 introduction in the neco dryer, warm...

Documents