model no. 486.244280 48 snow blade · pdf file14 1 blade adjust spring 23 1 axle pivot bracket...

,OWNERSMANUAL

Model No.486.244280

48"SNOW BLADE

CAUTION:Read Rules for

Safe Operationand Instructions

Carefully

CRAFTSMAN48" SNOW BLAD

Sears, Roebuck and Co., Hoffman Estates, IL. 60179 U.S.A.

RULES FOR SAFE, OPERATION

Any power equipment can cause injurY if operated im properly or if the user does not understand how to operate the equipment.

LOOK FOR THIS SYMBOL TO POINT OUTIMPORTANT SAFETY PRECAUTIONS. ITMEANS--A'FTENTION! BECOMEALERT! YOURSAFETY IS INVOLVED.

Exercise caution at all times, when using power equipment.1. Read the tractor and snow blade owners manuals and know how to operate your tractor before using tractor with snow blade

attachment.

2. Never operate tractor and snow blade without wearing proper clothing suited to weather conditions and operation ofcontrols.

3. Never allow children to operate tractor and snow blade, and do not allow adults to operate without proper instructions.4. Always begin with transmission in first (low) gear and gradually increase speed as required.

CONGRATULATIONS on your purchase of a Sears snowblade, it has been designed, manufactured and engi-neered to give you the best possible dependability andperformance.

Should you experience any problem you can not easilyremedy, please contact your nearest Sears Service Cen-ter/Department. We have competedt well trained techni-cians and the proper tools to service or repair this snowblade.

CUSTOMER RESPONSIBILITIES• Read and observe the safety rules.

• Follow the instructions under ='Customer Responsibili-•ties" and "Storage" sections of this manual.

Please read and retain this manual. The instructions witlenable you to assemble and maintain your snow bladeproperty. Always observe the "SAFETY RULES".

LIMITED ONE YEAR WARRANTY ON 48" SNOW BLADE

For one year from the date of purchase, when this snow blade is maintained and lubricated according to the operating andmaintenance instructions in the owner's manual, Sears will repair free of charge any defect in material or workmanship.If this snow blade is used for corn mercial or rental purposes, this warranty applies for only 90 days from the date of purchase.This warranty does not cover:

repairs necessary because of operator negligence or abuse, including the failure to maintain the equipment accordingto instructions contained in the owner's manual.WARRANTY SERVlCE IS AVAILABLE BY CONTACTING THE NEAREST SEARS SERVICE CENTER/DEPARTMENT IN THE UNITED STATES.

This warranty applies only while this product is in the United States.This warranty gives you specific legai rights, and you may also t_ave other rights which vary from state to state.Sears, Roebuck and Co. D/817 WA. HOFFMAN ESTATES, CHICAGO, ILLINOIS 60179

TABLE OF CONTENTSSAFETY RULES ............................................................... 2CUSTOMER RESPONSIBILITIES ............................... 2,15ACCESSORIES .................................................................. 3CARTON CONTENTS ................................................... 3-4ASSEMBLY FOR 917... SERIES .................................. 5-6ASSEMBLY FOR 502.. SERIES ................................... 7-8

ASSEMBLY FOR 536... SERIES ................................. 9-10UN tVERSAL FINALASSEMBLY ................................ 11-14

OPERATION AND ADJUSTMENTS .......................... t4-15jSTORAGE ....................................................................... 15:,PARTS EXPLOSION ....................................................... 16REPAIR PARTS ......................... ; .................................... 17PARTS ORDERING/SERVICE .................... BACKCOVER

ACCESSORIESThese accessories were available when your snow blade was purchased. They are also avai[abte at mostSearsretail outlets and service centers. Most Sears stores can order repair parts for you when you provide the model_-_umberof your snow blade.

WHEEL WEIGHT WEIGHT BRACKET TIRE CHAINS

48" SNOW BLADE CARTON CONTENTS (HARDWARE PACKAGE SHOWN ON PAGE 4)1/

2

7 8

19

1 15

BAG (A) CARTON (B) _t_

f

_. BAG (C) _J

_'_ _21__

BAG (D)

23

10

CARTON CONTENTS

REF. QTY. DESCRIPTION

Parts L6ose in Carton (used on all tractOrS)1

2345

67

89

10

I

I

I

I

I

I

I

I

I

I

Blade AssemblyPivot Support BracketChannel AssemblyBrace Tube (R.H.)

Brace Tube (L.H.)Frame AssemblyHandle Tube

Uft Rod %Blade Pivot Rod

Cable

REF. QTY. DESCRIPTION

15 2 Angle Lock BarsParts in Carton (B)(used on 917 tractors only)! 6 1 Pivot Plate Bracket17 1 Frame Reinforcement Bracket

Parts in Bag (C)(used on 917 & 502 tractors)19 1 Brace Mount Bracket (LH.)20 1 Brace Mount Bracket (R.H.)

Parts in Bag (D)(used on 502 & 536 tractors)21 1 Frame Bracket (L.H.)22 1 Frame Bracket (R.H.)

Part in Bag (E)(used on 502 tractors only)lParts in BAG (A) (used on all tractors)

! 1 1 Extension Spring12 1 Grip Assembly13 1 Blade Pivot Shaft

14 1 Blade Adjust Spring

23 1 Axle Pivot Bracket

Hardware Package (Shown On Page 4)

NOTE: Not all parts and fasteners included in

carton will be used for every fit-up.

A--

®@®®. u- .

x-___ Iit tll

_ _ _ _ _:__b . N !_I1_1

FIGURE I r HARDWARE PACKAGE

3t8"x 2*

qU

,/

--7

3t8"x 1"

3/8"x 314"

3t8" x 1-114"

r-

S

\

iH

I

i

IIIiI

IiIf

K N

r-

1t4_x 1-114" G./

....1.... i (

I ' /I

III!

I ,

9/1 6" OD X 5t8" LGSPACER

, 3/8"x 1-1/4"

/( Ii }

, It [

t 1

5t16"x 1-112" 1" OO X .60 LG.5/16" x 3t4" SPACER

V

FULL SIZE HARDWARE REFERENCE CHART

REF.ABCDEFGHIJKLMNOPQRSTUVWXYZ

ABAC

7

1t4"x 3-1/4"

QTY.122124115113224224121424

4 I,22t4122

DESCRIPTIONSpring Mount RodPalnut, 3/8"Cotter Pin 1/8" x 1-1/4"Angle Lock SpringCable End FittingHex Jam Nut 5/16 ThreadSpacer, 9/16" OD x 5/8" LG.Hex Bolt, 5/16-18 x 1-1/2"Hex Lock Nut 5/16-18 ThreadCable Mount BracketHex Bolt 1/4-20 x 1-1/4"Hex Lock Nut 1/4-20 ThreadSpacer, 9/16" OD x 1" LG.Carriage Bolt 3/8-16 x 1-1/4"Lock Washer 5/16"Hex Lock Nut 3/8-16 ThreadHairpin CotterChannel Pivot pinHex Bolt, 3/8-16 x 3/4" LG.Hex Bolt 3/8-16 x 1"Hex Bolt 3/8-16 x 2"Spacer, 1" OD x .60 LG.Hex Bolt, 5/16-18 x 3/4" LG.Washer, 3/8" LockWasher 1/2"Hex Bolt, 318-16 x 1-1/4" LG.Hex Bolt, 1/4-20 x 3-1/4" LG.Washer, 3/8" STD.Nylon Tie

I_'WASHER

3t8" WASHERM

I _iF"

I l, _ II 11 ,I

9tl 6" OD X 1" LG.SPACER

_F5/1 6" JAM NUT

I

5116" LOCK NUT

L114"LOCK NUT

5116" LOCKWASHER

X

3t8" LOCK WASHER

4

ASSEMBLY INSTRUCTIONS ",

TOOLS REQUIRED FOR ASSEMBLY

,i)(I)(1)

(1)

(_)(i)

PliersHammer

Adjustabie Wrench (or socket set)9/16" Open End or Box End Wrench7/16" Open End or Box End Wrench1/2" Open End or Box End Wrench

Parts BaQ Usaae:You will use the following enclosed

bags based on the first 3 digits of yourTRACTOR model number.

502

536917

Parts Baas Used

A, C, D and E OnlyA and D OnlyA, B and C Only

DISCARDUNUSED BAGS.

REMOVAL OF PARTS FROM CARTON• Refer to carton contents on page 3 and figure 1on page

4 for parts and hardware needed to assemble snowblade.

NOTE: Right hand (R.H.) and left hand (LH.) are deter-mined from the operators position while seated onthe tractor.

TRACTOR PREPARATION

• Remove mower deck or any other attachment you mayhave mounted to your tractor. Mark all loose parts andsave for re-assembly. Refer to owners manual forremoval of mower/attachment.

ASSEMBLY OF SNOW BLADE TOMODEL NO. 917 TRACTORS

Use all parts packed loose in Carton,and all parts in Bag (A), Carton (B)and Bag (C).Discard Bag (D) and Bag (E).Not all parts in Hardware Package willbe used.

O Using the two bottom holes, attach the pivot supportbracket to the front of the frame assembly using two3/8" x 1" hex bolts, lockwashers and lock nuts. Seefigure 2. Do not tighten till next step.

Using the two top holes assemble the pivot plate bracketto the front (inside) of the frame assembly using two3/8" x 1-1/4" hex bolts, Iockwashers and lock nuts. Seefigure 2. Tighten all loose bolts.

Attach the left and right hand tube braces on the insideof the left and right hand sides of the frame assemblyusing four 3/8" x 1" hex bolts, lockwashers and locknuts.Both tube braces should angle up and out. Do nottighten at this time. See figure 2.

PIVOT PLATE R.H. TUBEBRACKET BRACE LH. TUBE

3/8" X 1-1/4" \ BRACE

HEX BOLT

- J-®Jr 318-LOCK

PIVOT SUPPORT BRACKET ASSEMBLY

FIGURE 2

NOTETo attach frame reinforcement bracket in the next step,the tractor hood can be removed for easier access.Refer to your owneCs manual for removal of hood.

Attach frame reinforcement bracket to front of tractorframe using four 3/8" x 1" hex bolts, four 3/8" lockwashers and four 3/8" lock nuts. Do not tighten. Seefigure 3.

3/8" X 1"i

HEX -'"i

BOLT

3/8" LOCKWASHER (4)

,,I

_,_ FRAME" REINFORCEMENT

TRACTOR FRAME 3/8" LOCK BRACKET

FRONT NUTS (4)

FIGURE 3

Q

!

O

Lower the mower lift assembly.

Starting at the rear of the foot rest, remove and discard,if present, the two bolts in the bottom set of holes asillustrated in figure 4. Repeat on opposite side foot rest.

Place a 3/8" x 3/4" hex bolt in ear of both brace mount

brackets as shown in figure 4. Now, using the two smallbottom slots in the brace mount brackets, attach bothbrackets (R.H and LH.) underneath both sides of thetractor frame using four 3/8" x 1" hex bolts, lock washersand lock nuts. (Brackets should be positioned on theinside of the frame with ears to the rear and pointingoutward.) Do not tighten. See figure 4.

REAR FENDER 3/8" x 1" HEX BOLT

BOLTS REMOVED FROMTHESE TWO HOLES

3/8" LOCK- WASHER

BRACE EARMOUNT 3/8" HEX LOCKNUTBRACKET

3/8" x 3/4" HEX BOLT FRONT-----'-

FIGURE 4 (Right hand side view)

• Raise the mower lift assembly.

• Slide bladeframe assembly undertractor, with the bracetubes at the rear.

Attach brace tube to brace mount bracket using the3/8" x 3/4" hex bolt already assembled in previous step.

• Secure with a3/8" lock washer and 3/8" lock nut. Repeatthis step on opposite side. Do not tighten at this time.See figure 5.

REAR FENDER

\\ FOOT REST

3/8" x 3/4"HEX BOLT

!f

BRACE MOUNTBRACKET

_ 3/8" LOCK

WASHER _ [[ BRACE TUBE (R.H.)

3/8" LOCK NUTFRONT ,------1-

FIGURE 5 (Right hand side view)

Attach blade frame assembly to inside of tractor frameby aligning holes in pivot plate bracket with holes in frontend of tractor frame and frame reinforcement bracket.Secure using two 3/8" x 1-1/4" hex bolts, 3/8" flat

washers, 3/8" lock washers and 3/8" lock nuts. Tighten 1these two bolts at this time. See figure 8.

FRAMEREINFORCEMENTBRACKET

TRACTOR !

NUT(2)t. \ 3/ L T! 3/.-x,-,-.

•(8'LO2K" @ _.._"" WA'_.HE_ H'_'BOLT

-'----_@ _'". _ I

P VOT ! ',PLATE _'_ {_'b-\ _ ,'. ,

FIGURE 6

At this time tighten all of the following bolts previously leftuntightened.Tighten the 4 bolts fastening the frame reinforcementbracket to the tractor frame.

Tighten the 4 bolts fastening the tube braces to theframe assembly.Tighten the 2 bolts fastening the tube braces to thebrace mount brackets.Tighten the 4 bolts fastening the brace mount bracketsto the tractor frame.

• See FINAL ASSEMBLY on page 11 to complete yourhook up.

ASSEMBLY OF SNOW BLADETOMODELNO.502 TRACTORS

:se all parts packed loose in Carton,

and all parts in Bag (A), Bag (C),Bag (D) and Bag (E).Discard Carton (B)Not all parts in Hardware Package willbe used

O Remove the four bolts which fasten the cross brace to

the frame assembly and reposition and fasten the braceusing the back set of holes in the frame assembly.Tighten. See figure 7.

Assemble axle pivot bracket to the inside of the frontplate on frame assembly using two 3/8" x 1" hex bolts,3/8" lock washers and 3/8" lock nuts. Tighten. Seefigure 7.

Attach frame brackets (R.H. and LH.) to the inside of,tractor frame using the front hole in the brackets and thehole in each side of tractor frame that is at the front of thefoot rest and the back edge, of the engine. See figure 9.Fasten each bracket with one 3/8" x 1" hex bolt, lockwasher and lock nut. (Note that brackets are positionedwith the bends pointing in, the notched side to the frontand the four holes at the bottom.) Do not tighten. Seefigure 9.

AXLE PIVOT_.__._/3/8" x 1" HEX BOLTS

3/8" LOCK ""."_-'_'-- CROSSWASHER BRACE

3/8" LOCK

FRAME ASSEMBLY

LOCKWASHER

3/8" LOCKNUT

FIGURE 7

Using thetop and bottom holes on both sides of the pivotsupport bracket, attach it to the outside,of the front plateofthe frame assembly using four 3/8" x 1" hex bolts, lockwashers and lock nuts. Tighten. See figure 8.

,)

1

3/8" LOCK NUT 3/8" LOCKWASHER

PIVOT SUPPORT BRACKET

x 1" HEX BOLT

FRAMEASSEMBLY

FIGURE 8

FIGURE 9 (Right Hand Side View)

• Attach blade frame assembly to the tractor frame byinserting the axle pivot bracket into the hole in the centerof the axle. See figure 10.

-'O Attach the blade frame assembly to frame brackets(R.H. and LH.) using the bottom front hole on eachbracket and the bottom rear holes on both sides of theframe assembly. Use two 3/8"x 1" bolts, 3/8" Iockwashersand 3/8" lock nuts. Do not tighten. See figure 10.

AXLE PIVOT BRACKET AXLE HOLE

FRAME

BRACKET (LH.)

318" HEX NUT

3/8" LOCKWASHER

FIGURE 10

HEX BOL'I

(Right Hand Side View)

Onbothsidesoftractor,removeanddiscardtheboltsinthetwoholeslocateddirectlyin frontandbehindthefendersasshowninfigure11.Inserta3/8"x3/'4"hexboltdownthroughthe earof eachbracemountbracket.AttachtheL.H.brackettotheleftsideofthetractorontheinsideof tractorframeusingtwo5/16"x 3/4"hexbolts,lockwashersandlocknutsasshowninfigure11.Earofbracketshouldbetotherearand facing outward.Repeat for right side using R.H. bracket. Do nottighten. See figure 11.

HOLES WHERE BOLTS WERE REMOVED

x 3/4"HEX BOLT

5/16" LOCK NUT

WASHER _

MOUNT /BRACKET EAR POINTS OUTWARD

..-- 3/8" x 3/4" HEX BOLT

BRACE MOUNTBRACKET

_ 3/8" LOCK WASHER

3/8" HEX NUT

BRACE TUBE (R.H.)

FIGURE 12

I

FRAME ASS'Y

3/8" x 1" HEX BOLTS

FRONT

(Right Hand Side View)

• See FINAL ASSEMBLY on page 11 to complete you rhook up.

FIGURE 11 (Left Hand Side View)

Q Attach the brace tubes (I_H. and R.H.) to the outside ofthe frame assembly using the front bottom hole in theframe assembly and the aligned hole through the frameassembly and the frame bracket as shown in figure 12.Use two 3/8" x 1" hex bolts, lock washers and tock nutson each side. Attach the other end of the brace tubes to

the brace mount brackets using the 3/8" x 3/4" hex boltsinserted in previous step. Secure from underneath witha 3/8" lock washer, and lock nut on both brace tubes.See figure 12.

o Atthistime tighten all of the following bolts previously leftuntightened.Tighten the 2 bolts fastening the frame brackets to thetractor.

Tighten the 2 bolts fastening the frame assembly to theframe brackets.Tighten the 4 bolts fastening the brace mount tubes tothe frame assembly,Tighten the 4 bolts fastening the brace mount bracketsto the tractor.Tighten the 2 bolts fastening the brace mount t_Jbestothe brace mount brackets.

ASSEMBLY OF SNOW BLADE TOMODEL NO. 536 TRACTORS

Use all parts packed loose in Carton,and all parts in Bag (A) and Bag (D).Discard Carton (B), Bag (C) andBag (E).Not all parts in Hardware Package willbe used.

o Using the top and bottom holes on both sides of the pivotsupport bracket, attach the bracket to the front plate ofthe frame assembly using four 3/8" x 1" hex bolts, lockwashers and lock nuts. Tighten. See figure 13.

Position the left hand frame bracket against the left side

of the frame assembly as shown in figure 14, aligning thefront two holes in the frame bracket with the rear twoholes in the frame assembly. Fasten through the bottomhole only, using a 3/8" x 1" hex bolt, lockwasher and!ocknut. Repeat for right hand side. Do not tighten. Seefigure 14.

3/8" LOCKNUTS

R.H. AND LH. FRAME BRACKETS

3/8" X 1"HEXBOLTS

1


3/8" LOCKWASHERS

FRAMEASSEMBLY


3/8" LOCK NUT 3/8" LOCKWASHER


x 1" HEX BOLT

FRAMEASSEMBLY

FIGURE 13

NOTE: The following assembly requires careful attentionto identification and placement of R.H. and L.H. framebrackets. (Refer to CARTON CONTENTS on page 4).On both brackets the four holes should be on bottom and

to the front with the bend pointing away from the frameassembly.

Attach the L.H. brace tube to the outside of the frame

assembly as shown in figure 15. Fasten through thealigned upper front hole in frame bracket and throughbottom front hole in frame assembly using two 3/8" x 1"hex bolts, Iockwashers and lock nuts. Repeat for R.H.side. When properly assembled the handle brace tubeswill angle up and out. Do not tighten. See figure 15.

LH. FRAME

3/8"LOCKBRACKET

3/8"LOCKNUTwAs"ERs/

L.H.

----N "

FIGURE 15

Attach the R.H. brace tube to the tractor frame using a3/8" x 2" hex bolt, two spacers, a Iockwasher and aIocknut as shown in figure 16. Use the empty holelocated to the rear and to the inside of the foot rest. Hole

is concealed by the rubber foot pad. Repeat for left side.Do not tighten. See figure 16,

Atthistimetighten all ofthe following bolts previously leftuntightened.Tighten the 2 bolts fastening the R.H. and I_H. bracetubes to the tractor frame."

Tighten the 2 bolts fastening the frame assembly to theframe brackets.

Tighten the4 bolts fastening the brace tubes to theframe assembly.

X BOLT

, / ' __ SPACERS (2)

3/8" LOCK NUT


• See FINAL ASSEMBLY on page 11 to complete yourhook up.

Remove the 7/16" x 1" bolt (if present) from the holelocated in the side of the tr&ctorframe, below the engineand just ahead of the foot rest. Attach the front hole intheI_H. frame bracket to this hole as shown in figure 17. Usea 3/8"x 1" hex bolt, Iockwasher and lock nut. Repeat forotherside. Tighten. See figure 17.

3/8"LOCKNUT

LOCK3/8" x 1"HEX BOLT

FRAME BRACKET (LH.

INSTATING WHEEL WEIGHTS (PURCHASED SEPA-RATELY) ON ALL WHEEL STEER TRACTORS: MODELNUMBERS BEGINNING WITH 536...

Installation of rear weights to the "All Wheel Steer" Series536 tractor requires the use of (4) 3/8" x 6" bolts. The boltsmust be inserted from the inside with the flat washers, lockwashers and nuts installed on the outside of the wheelweights.

CAUTION: Failure to install the bolts from the insidewill lock up the wheels and damage the "All WheelSteering" mechanism,

If these 3/8" x 6" bolts have not been furnished with thewheel weights, call Lemont Industries (Phone #815-634-2214)


10

FINAL ASSEMBLY

Assemble the two angle lock bars together as shown infigure 18, so that all holes are aligned. Use one 3/8" x I-1/4" carriage bolt, one 3/8" lock washer and one 3/8" hexlock nut. Be sure to insert bolt from side indicated. Do

not tighten at this time. See figure 18.

3/8" HEX NUT

3/8" LOCK WASHER

3/8" CARRIAGE BOLT

JBRACKET(A)

ANGLELOCKBARS

._LELOCK SPRING

FRONT--_

FIGURE 18 (Right Hand Side View

• Hold the angle lock bars so that the square holes are atthe top, Hold the angle lock spring so that the opening ofthe round hook is facing up. Insert the straight hook endof the spring through the middle hole in both angle lockbars as shown in figure 18.

_• Assemble round hook end of angle lock spring upthrough the hole in bracket (A), which is mounted on thepivot bracket, see figures 18 and 19.

• Pull on angle lock bars to extend spring just enough toallow insertion of bars down through slot in channel andpivot bracket. Using a 1/4" x 3-1/4" bolt, two 1" longspacers and a 1/4" lock nut, align the two spacersunderneath the channel on both sides of the angle lockbars and insert the bolt through holes in sides of thechannel and through the angle lock bars and the twospacers. Assemble the lock nut to the bolt on outside ofchannel. Tighten so that lock bars pivot freely. See figure19.

• _tehl: tiusrr_;taighetenthe_3/o8;C;;rJ;g:bblatr;nd hex nut

/ SCHANNEL"_

,1" SPACERS (2) 1/4" x 3-1/4" HEX BOLT


NOTE: Angle lock bars should pivot freely; and whenthey are pulled all the way back, the channel/pivot plate assembly should be unlocked andfree to pivot to right or left position notches.

Using a hammer, drive a 3/8" patnut onto one end ofspring mount rod. Insert the other end of the springmount rod through the rear holes on both sides of thepivot plate. Support end (with palnut) of the springmount rod with a block of wood, and hammer on theremaining palnut. See figure 20.

3/8" PALNUTSPRINGMOUNT

ROD

3/8" PALNU3

FIGURE 20

PIVOTPLATE

(Top View)

Assemble 3/8"x 1-1/4" carriage bolt through square holein cable mount bracket and through square hole in anglelock bars as shown [n figure 21. Note that the top boltfaces in opposite direction. Using pliers hold the cablemount bracket in position, angling down towards smallhole in channel as shown in figure 21, and secure witha 3/8" lock washer and a 3/8" lock nut. Tighten. Seefigure 21. See also figure 23 on page 12 for angle ofcable mount bracket.

3/8" x 1-1/4"

CARRIAGE BOLT _ALIGN CABLE MOUNTBRACKET WITH HOLE

\ANGLE LOCK BARS

3/8" LOCK 3/8" LOCKNUT WASHER , FRONT


11

Assemble one 5/16 jam nut approximately 3/4" ontothreaded end of control cable. Assemble threaded cableend through round hole in cable mount bracket as shownin figure 22, and securewith another 5/16 jam nut.Tighten. See figure 22.

NOTE: Some adjustment of jam nuts may be required afterblade assembly is completed.

5/16"

CABLE MOUNT _- 3/4" --_

BRACKET r_'_ IIIIIItt II I!!!!!! I==::=ONUT

5/16" JAM NUT

FIGURE 22

tCHANNEL ASSEMBLY REAR --'-

(Left Hand Side View)

Assemble ball end of control cable up through hole incable end fitting and pull till ball slips inside curled edgeof fitting as shown in figure 23. Note: If ball wont slip

• underedgeofcurl it will needto be inserted through openend of curl. See figure 23

Assemble 1/4" x 1-1/4" hex bolt down through the cableend fitting, the 5/8" long spacer and the left hand hole inthe channel assembly. Secure with a 1/4" hex lock nut.See figure 23. Tighten.

NOTE: The other end of the control cable will be°

attached in a later step.

CABLEEND / HEXBOLTFITTING \ /

\ / SPACER

t HOLEI

1/4" HEX LOCK NUT REAR-.-----


JInsert a 1/8" x 1-1/4" cotter pin down through holenearest to bend in blade pivot shaft and spread end.Attach blade assembly to channel assembly by insertingthe blade pivot shaft from the left side (bend facing up:

through the notched holes in the b!ade and chann_assemblies.SecurewithanotherI/8 xI-I/4cotterp#

throughtheend holeinpivotshaft.Spread end ofpin.See figure24.

Attach blade adjust spring over spring mount rod asshown in figure 24. Remove plastic cap, and one 3/8"hex nut from bolt assembled in spring. Adjust the re-maining 3/8" hex nut down approximately 1"onto the boltthreads. Assemble bolt up through the hole in top edgeof blade and hold in place with the 3/8" hex nut removedearlier. Tighten 3/8" hex nut on top edge of blade downagainst the bottom 3/8" hex nut. Replace plastic capover end of bolt threads. See figure 24.

1/8" x 1.1/4" _______j

COTTER PIN m r

BLADEPIVOT "_"_

SHAFTBLADESHOE

CHANNELASS'Y

(TOP)PLASTIC3/8" HEX NUT

},./ CAP

//

HEX NUT

BLADEASS'Y

SPRINGMOUNT ROD

BLADE ADJUST

_.._. SPRING1/8" x 1-1/4"COTTER PIN


• Assemble the 1/2" washer onto the channel pivot pin.

Attach the channel assembly to the tractor by placing theend of the channel assembly up inside the pivot supportbracket on the tractor. Align the second hole from theend in the channel assembly with the front hole in thepivot support bracket and insert the channel pivot pinthrough from the left side. Secure with a hairpin cotterpushed all the way through to the loop end. See figure25.

NOTE: All hairpin cotters on this snow blade should bepushed through to their loop end.

12

PIVOT SUPPORTBRACKET

1/2" WASHER

PIVOT PIN

FIRST HOLEIN CHANNEL

& SLOT IN

7 [BE AUGNED_-_ ALLEST CHANNEL

HAIRPIN __(_ _,dJ- H_ ASSEMBLYCOTTER""_"_

PUSH THROUGH ALTERNATIVETO LARGE LOOP HAIRPIN DESIGN

FRONT--.'-


@ To assem ble lift handle to btade, assure that holes inendof channel assembly are aligned with clearance slots insides of pivot support bracket as shown in figure 25.From the left side insert the bracket end of the lift rodthrough the holes in the channel assembly. Next, alignthe hole in the lift rod bracket with the lift link (pre-assembled to the pivot support bracket). Secure with ahairpin cotter inserted up through the cross hole in the liftlink pin all the way to the loop end of the hair pin cotter.See figure 26.

• Using the furnished grease packet, apply a light coatingof grease to the straight upper portion ofthe lift rod. Slidelift handle tube onto the lift rod. See figure 26.

LIFT HANDLE

LIFT ROD _

.LONG PIN

(LIFT LINK)

BRACKET

HAIRPIN COTTER


@To attach loose end of cable io handle assembly, pass

' cable around outside and underneath handle assemblyas shown in figure 26. Mount one 5/16" jam nut approxi-mately 3/4" onto threaded end of control cable. Insertthreaded end of cable up through cable mount ear on

handle assembly and secure with a second 5!16" jamnut. Tighten. See figure 27.

NOTE: Some further adjustment may be required afterblade assembly is completed.

HANDLE ASS'Y CABLE MOUNT EAR

_- -----..

_ B!LL' "5/1_6.

GRIP


@ Assemble grip assembly to handle assembly using one5/t 6"x 1-1/2" hex boltand one 5/16" hex locknut. Do not

overtighten lock nut; grip assembly must pivot freely.See figure 28.

@ Assemble ball end of cable to a cable end fitting as wasdone previously to other end of cable. Secure cable endfitting to handle assembly with a 1/4" hex lock nut. Donot overtighten lock nut; cable fitting must pivot freely.See figure 28.

5/16" X 1-1/2" 1/4" WELD CABLE ENDHEX BOLT BOLT FITTING

CABLE

GRIP1/4 " HEX

LOCK NUT

5/16" HEXLOCK NUT

HANDLE ASSMEBLY I _!_

CABLE ENDFITTING


13

• Attachthetongendofthebladepivotroddownthroughthebladepivotshaft.Attachtheshortendofthepivotrodtothelifthandletube.Securebothendswithahairpincotterpushedthroughto loopend.Seefigure29.

• Raise the biade to the transport position by pulling backand down on the lift handle tube. See figure 30. (This will

require extra effort since the extension spring is not yetattached.)

• Attach the long end of the extension spring to the upperhole in the pivot support bracket and the short end to thecenter slot in the channel as shown in figure 29.

• Use the two plastic ties to hold the cable securely to theoutside of the handle tube and away from the tractor toavoid direct heat from the tractor muffler. See figure 29.

BLADE PIVOT RODLIFT HANDLE PLASTIC

HAIRPIN TUBE TIESCO1-TER EXTENSION

SPRING

HAIRPINCOTTER

BLADEPIVOT SHAFT

CHANNEL ASS'Y


FIGURE 29 (Left Hand Side View

OPERATION INSTRUCTIONSAND ADJUSTMENTS

Snow Blade Handle Tube (Lift and Lower)Located on the left'hand side of the tractor. To raiseblade, pull back and down on handle tube. To lowerblade, pullback_nd lift up on handle tube. Seefigure 30.

PULL BACK AND

LIFT UPTO LOWER

• BLADE

aULL BACK AND

PUSH DOWN TOBLADERAISE.._...

FIGURE 30

Control Grip (Blade Pivot Lock)Located on the top of the snow blade control tube. Raiseblade to transport position. To unlock blade push oncontrol grip and hold it down against handle tube. Topivot blade to the right push handle tube forward. To pivot,blade to the left pull back on handle tube. Release thecontrol grip to lock blade in desired position. See figure31.

BLADE

CONTROL GRIP

(BLADE PIVOT LOCK)

HANDLETUBE

BLADE SHOE

FIGURE 31

ADJUSTMENTS

Blade Shoe AdjustmentBlade shoes on ends of blade, (see figure 31), may beraised for close work on smooth surfaces or lowered toraise the blade to work on rough or uneven areas. Make1sure both shoes are set evenly and nuts are tightenedsecurely.

Blade Pivot Lock AdjustmentIf blade wilt not unlock and pivot, the angle lock bars arenot disengaging from the slots in pivot plate assembly.To correct, adjust the 5/16 hexjam nuts on threaded endof control cable out towards end of cable, drawing thecable back through the cable mount ear. See figure 32.

CABLE MOUNTEAR

5/16" HEX NUT

CONTROL

5/16" HEX CABLE

b [ i Inm,_

FIGURE 32

Adjust Blade SpringThe tension of the bfade adjust spring is adjustable topermit blade to tilt forward to by-pass solid obstructions.To change spring tension (standing in front of bladeassembly), adjust the nuts at upper end of the springbolt, turning counter clockwi_se to relieve tension andclockwise to increase tension. See figure 24 on page t 2.

14

Lubrication PointsLubricate the points shown in figure 33 for easier opera-tion. Use the grease packet furnished with the snowblade for lubrication of the lift handle rod and the lifthandle tube assemblies.

LUBRICATE_

FIGURE 33

KNOW THE TERRAIN. AVOIDEXCEPTIONALLYSHARP SLOPES ORDROP OFFS WHICH MAY BE HIDDENBY THE SNOW.NEVER RUN THE SNOW BLADE INTOHEAVY MATERIAL AT HIGH SPEED.

• Prepare lawn tractor engine for cold weather usinginstructions furnished with the lawn tractor.

• Always begin with transmission in first (low) gear andgradually increase speed as required.

• DO NOT repeatedly push snow in the same directioncausing excessive build up with each successive pass.

• If blade is stored in heated area, allow lawn tractor and

blade to adjust to outdoor temperature before operatingto reduce icing on the metat surfaces.

NOTE: When working under the hood of a SERIES 536tractor while snow blade is attached, the hood maynot stay up on its own; therefore, you may need tolay something (such as a piece of wood) over theengine housing to keep the hood propped up.

I GROUND BEFORE LEAVING[ I_l) TRACTOR.

TO REMOVE SNOW BLADE FROMTRACTOR

• Lower blade to ground with blade in the center (straight)position.

Refer to figure 29.A. Remove 3/32"

B.

C.

hairpin cotter from lower end ofblade pivot rod.Remove 3/32" hairpin cotterfrom "weldedlink on liftrod and remove control tube assembly.Remove 3/32" hairpin cotter from channel pivot pinand remove channel pivot pin.

NOTE: Wheel weights and tire chains must be used withyour snow blade for traction. These accessoriesare available at your nearest Sears retail store.If the model of your tractor begins with #536(model number found inyour owners manual or onthe model plate decal), then you will need to usethe 6" bolts included in your wheel weight kit anddiscard the longer 8" bolts. Use as instructed tomount wheel weights to the rear wheels of yourtractor.

OPERATION

J

ill&INSPECT THE AREA TO BE WORKEDCAREFULLY BEFORE OPERATINGTHE SNOW BLADE. AVOID PIPES,ROOTS, CURBS OR OTHER HEAVYOBSTRUCTIONS,

CUSTOMERRESPONSIBILITIES

During the operating season, check all bolts, nuts andhairpin cotters to be sure they are secure. For improvedsnow removat performance, coat the blade with automotivetype paste wax.

STORAGE

When the snow blade is not being used, remove all dirt andrust and touch up with paint.

Apply a light coat of grease or rust preventive to the bladeand oil all pivot points.

Store in an area where it is protected from weather.

15

REPAIR PARTS FOR MODEL 486.244280 -48" SNOW BLADE

tO

\ /

\ t

.//

t

7

€_

tO

_ 0tO

\

,r- N

//

t

/

i i

i

//

ID //

o

16

tO

/

_- o0 )

/_ // ./

,g

//

>/

//

/

//

V

CD

CD

I 1 _ 1

_1_____.__ "/

/z

b,,

ID

_D

REPAIR PARTS LIST FOR MODEL 486.244280 - 48" SNOW BLADE

i REF.NO.1234567891011121314151617181920212223

25262728293031323334353637

PART QTYNO.23955 123956 162980 143080 1043079 243064 1243081 423070 223970 123957 143262 123131 143352 123958 123130 123966 146066 143070 29466R 144071 143015 244074 17460366162561 143055 446053 ,263033 123974 1732-0153 124023 123960 123962 123961 123964 123963 146048 146047 1

DESCRIPTION

Blade 48"

Wear Plate 48"Reinforcement Plate Ass'yBolt, Carriage 5/16-18 x 3/4"Bolt, Carriage 5/16-18 x 1"

REF. PARTNO .... NO.

38 46049

39 6297240 2396741 2396842 23151

QTY. DESCRIPTION

1 Rod, Blade Pivot '

1 Ass'y Lift Handle Tube1 Bracket, Brace Mount (rear) (LH)1 Bracket, Brace Mount (rear) (RH)2 Angle Lock Bar

Nut, Hex Lock 5/16-18Washer, 5/16"Skid ShoeBrace, CrossPush ChannelNut, Hex Lock 1/2-13Bolt, Special PivotWasher, Flat 7/16"Plate, Pivot 7 Ca.Bracket, Spring Mt.

iBracket, Pivot PlateiShaft, Blade PivotWasher, 3/8" STD.Spring, Blade AdjustBolt, Hex 3/8-16 x 3-1/2"Nut, Hex 3/8-16Plastic CapControl Cable Ass'yRelease Grip Ass'yPin, Hairpin Small 3/32"Spacer, .28 ID x 1"

Lift Handle Rod Ass'y :Axle Pivot Bracket

Extension SpringPivot Support BracketPlate, Pivot SupportFrame Pivot Support (RH)Frame Pivot Support (LH)Bracket, Frame (RH)Bracket, Frame (LH)Brace, Tube (RH)Brace Tube (LH)

43 2385644 4491745 4301046 4334847 746-026(48 731-086_49 707150 712-025E5t 2365852 4308553 4306454 0576255 1509-9056 4301357 710-0305

5_ 430865 4606560 6303461 4316262 4340763 4300164 4305465 4308766 4308267 4300368 T26.017869 R191_670 4513371 4607172 4334973 2402174 46227

1 Spring Mount Rod2 Palnut, 3/8"3 Cotter Pin 1/8" x 1-1/4"1 Angle Lock Spring2 Cable End Fitting1 Grip, Plastic1 Handle, Grip 3/4"4 Hex Jam Nut 5/16 Thread1 Spacer1 Hex Bolt, 5/16-18 x 1-1/2"5 Hex Lock Nut 5/16-18 Thread1 CabIe Mount Bracket1 Hex Bolt 1/4-20 x 1-1/4"3 Hex Lock Nut 1/4-20 Thread2 "Carriage Bolt 3/8-16 x 1-1/4"4 Lock Washer 5/16"1 Channel Pivot Pin1 Lift Unk #.ss'y4 8olt, Hex 5/16-18 x 3/4"6 Bolt, Hex 3/8-16 x 3/4"18 Hex Bolt 3/8-16 x 1"2 Hex Bolt 3/8-16 x 2"4 Hex Bolt 3/8-16 x 1-1/4"30 Hex Lock Nut 3/8-16 Thread30 Lock Washer 3/8"2 Plastic Tie1 Washer

4 Spacer, 1/2" ID x 1" OD x.60" Lg.1 Bolt, Hex 1/4-20 x 3-1/4" Lg. Gr 51 1/4" x 1" Spring Pin1 Bracket, Frame Reinforcement1 Owners Manual

17

model no. 486.244280 48 snow blade · pdf file14 1 blade adjust spring 23 1 axle pivot bracket...

Documents