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Operator’s Manual

THIS IS A MANUAL PRODUCED BY JENSALES INC. WITHOUT THE AUTHORIZATION OF J.I. CASE OR IT’S SUCCESSORS. J.I. CASE AND IT’S SUCCESSORS

ARE NOT RESPONSIBLE FOR THE QUALITY OR ACCURACY OF THIS MANUAL.

TRADE MARKS AND TRADE NAMES CONTAINED AND USED HEREIN ARE THOSE OF OTHERS, AND ARE USED HERE IN A DESCRIPTIVE SENSE TO REFER TO THE PRODUCTS OF OTHERS.

930 Comfort King

CA-O-930 CK

Figure l.General Purpose Tractor (931)

Figure 2.Special Tractor (932)

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Oil Filter --------------------- Full Flow with Replaceable Element.

Fuel Injection System

Fuel Tank Capacity ------------------------ 48 U. S. Gallons Fuel Injection Pump -------------------- Robert Bosch Type

PES (Multiple Plunger). 310 Before Top Dead Center (Port Closing).

Fuel Injectors ------------------------- Robert Bosch Throttling Pintle Type (Opening Pressure 2000 PSI).

Fuel Transfer Pump ----------------- Plunger Type, Integral Part of Injection Pump.

Governor ------------------- Variable Speed, Fly-Weight Cent­rifugal Type; Integral Part of In­jection Pump.

Fuel Filters

1st Stage --------------------------- Replaceable Element or Cartridge Type.

2n Stage ----------------------------Replaceable Element or Cartridge Type.

Final 3rd Stage (If Equipped) -------- Replaceable "Sealed Type" Filter

Fuel Tank Breather -------------------------------- Fuel Cap Fuel Tank Water Trap and Drain ---------- Bottom of Fuel Tank Fuel Tank Level Gauge --------- Located on Instrument Panel Fuel Pressure Warning Light --- Located on Instrument Panel

Indicates Condition of Fuel Filters.

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BELT PULLEY Installation

The belt pulley attachment is driven by the PTO and is mounted on the PTO - Hydraulic housing as follows:

1. Remove the PTO adapter guard and the shaft tubular guard be­fore installation of the belt pulley.

2. Install the belt pulley engaging the PTO shaft. The breather on the belt pulley must be in the up position. Reinstall the four nuts and tighten securely, Figure 37.

3. Check the lubricant in the belt pulley. Refer to Lubrication Chart.

Figure 36 Removal

Figure 37

1. Loosen and remove the four nuts; remove belt pulley.

2. Reinstall the PTO adapter guard and shaft tubular guard. Rein­stall the four nuts and tighten securely, Figure 36.

ALWAYS REMOVE THE BELT PULLEY ATTACHMENT FROM TRACTOR WHEN PULLEY IS NOT IN USE.

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INTERCHANGING FRONT AXLES GPTRACTORS

The following important precautions must be observed: DUAL FRONT AXLES - Steering Gear Support Ring Figure 48,

must be installed with five (5) 5/8" x 3-3/4" bolts with lockwashers and one 5/8" x 3-1/2" bolt with lockwasher - in front hole to avoid damage to steering valve. Torque 150 - 165 ft. lbs. Use four (4) 5/8" x 2" bolts to bolt spindles together. Torque 150 - 165 ft. lbs.

ADJUSTABLE FRONT AXLE - When changing over to Adjustable Front Axles - Steering Gear Support Ring, Figure 48~ must be re­moved and six (6) 5/8" x 2-1/4" bolts installed. Torque 150-165 ft. lbs. to hold steering torque lTIotor in place. Use four (4) 5/8" x 1-1/2" bolts from steering arm to spindle. Torque 150 - 165 ft. lbs. NOTE DO NOT SUBSTITUTE BOLT LENGTH AS SERIOUS DAM­AGE COULD RESULT.

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Figure 48

STEERING GEAR SUPPORT RING INSTAll WITH BEVEL EDGE UP AS SHOWN

REAR WHEEL TREAD SPACINGS

Manual Shift Rear Wheels 1. The tires and rims can be n10ved in and out on the wheels to 4

tread positions. 2. The wheels or hubs can be slid in and out on the axles. 3. The wheels can be n10unted on the axles so the "dish" is either

toward the tractor (in) or away from the tractor (out).

Powr Shift Rear Wheels 1. Using the h'actors own power, tires and rims can be moved in or

out on the wheels. 2. The wheels can be slid in and out on the axles. 3. By mounting the wheels on the axle in the "dish out" position the

full range of adjustments can be obtained.

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LPG Liquid Fuel Filter

The liquid fuel filter, Figure 75, catches and retains in its settling bowl all the solid particles coming through with the liquid fuel. This filter works until it becomes clogged up sufficiently to restrict the flow of fuel. A sure indication of a clogged filter is frost forming on the outside of the filter body.

Figure 75

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Figure 76

..,....sOLT

When the filter cartridge becomes clogged, it should bereplaced. To do this, shut off the fuel at the tank. Remove the filter body bolt Figure 76, and take off the body section of the filter. Install a new genuine Case element and new gaskets.

Should the liquid fuel line between the tank and the fuel regulator become clogged at any point other than the filter, frost will form on the line at the point where the obstruction occurs. Should frost ap­pear on any portion of the fuel regulator, it is an indication of in­sufficient coolant circulation.

NOTE The appearance of frost at any point in the fuel system when the engine is not running is an indication of leakage and should be corrected immediately.

CAt/TION WHEN FILLING THE TANK, CHECKING THE LIQUID LEVEL IN

THE TANK OR WHEN CLEANING THE LIQUID FILTER, BE VERY CAREFUL NOT TO COME INTO PROLONGED CONTACT WITH THE LIQUID SPRAY. THE TEMPERATURE OF THE LIQUID SPRAY IS EXTREMELY LOW AND COULD CAUSE FROST-BITE IF IT DIR­ECTLY CONTACTED BARE HANDS, ARMS OR OTHER PARTS OF THE HUMAN BODY.

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TABLE OF CONTENTS SERIAL NUMBERS .................. . 3

401 DIESEL ENGINE SPECIFICATIONS. . . . . . . . .. 4,5

377 GASOLINE AND LP GAS ENG.SPECIFICATIONS. 6,7

GENERAL SPECIFICATIONS. . . . . . . . . . . . . . .. 8-15 Cooling Sy stem . . . . . . . . . . . . . . . . . . . . . . . .. 8 Electrical ..................... -. . . . . . .. 8 Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8 Traction Clutch . . . . . . . . . . . . . . . . . . . . . . . .. 8 Power Steering . . . . . . . . . . . . . . . . . . . . . . . .. 8 Transmission. . .. . . . . . . . . . . . . . . . . . . . . . .. 9 Belt Pulley . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9 Power Take-Off. . . . . . . . . . . . . . . . . . . . . . . .. 9 Drawbars . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9 Hydraulic Sy stem . . . . . . . . . . . . . . . . . . . . . . . . Draft-O-Matic System .................... .

9 9

Overall Measurements . . . . . . . . . . . . . . . . . . . . 10 Approximate Weights . . . . . . . . . . . . . . . . . . . . . 10 Wheel Equipment and Tire Pressures. . . .. . . . . . . 11 Front Wheel Tread Spacing(General Purpose) ..... 12 Front Wheel Tread Spacing (Special) . . . . . . . . . . . 13 Power Shift Rear Wheel Tread Spacing. . . . . . . . . . 14 Rear Wheel Tread Spacing(Standard & Universal) . . . 15 Travel Speeds . . . . . . . . . . . . . . . . . . . . . . . . . . 15

FUEL SPECIFICATIONS. . . . . . . . . . . . . . . . . . . 16-18 Gasoline ............................. 16 L P Gas .............................. 16 Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Fuel Conditioner . . . . . . . . . . . . . . . . . . . . . . . . 18

LUBRICATION ......................... 19-30 Recommendations and Capacities ............. 20 Lubrication Chart. . . . . . . . . . . . . . . . . . . . . . 20,21 Engine Lubrication and Oil Change . . . . . . . . . . 22,23 Engine Oil Filter . . . . . . . . . . . . . . . . . . . . . . . . 24 Air Cleaner. . . . . . . . . . . . . . . . . . . . . . . . . . 25,26 Transmission - Hydraulic Oil Filter ........... 26 Power Steering Filter. . . . . . . . . . . . . . . . . . . 27,28 Packing Front Wheels (Two Piece Seal) ......... 29 Packing Front Wheels (One Piece Seal) . . ....... 30

SAFETY PRECAUTIONS .................... 31 Towing .............................. 31

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TABLE OF CONTENTS (continued) OPERATING INSTRUCTIONS ................ 32-71

Run-In Procedure ........................ 32 Pre-Starting Check List . . . . . . . . . . . . . . . . . . . 33 Operating Controls and Instruments ........ 34 thru 41 Amber Warning Lamp ........... .... . . . 42 Starting Procedure. . . . . . . . . . . . . . . . . . . . . . . 43 Stopping Procedure. . . . . . . . . . . . . . . . . . . . . . . 44 Cold Weather Operation .................. 45,46 Cold Weather Starting Procedure and Fluid .... 47,48 Coolant Heater .......................... 49 Power Take-Off ........................ 50,51 PTO Operating Precautions . . . . . . . . . . . . . . . . . 52 Belt Pulley ........................... 53,54 Drawbars ............................. 55 Case Draft-O-Matic Operation .............. 56,57 Case Draft- 0-Matic Adjustments ............ 58,59 Draft Arm Mechanical Floatation . . . . . . . . 60 Hydraulic Control Operation ................. 61 Breakaway Couplings . . . . . . . . . . . . . . . . . . . . . 62 Portable Cylinders .................... 63, 64 Interchanging Front Axles (GP Tractors) . . . . . 65 Rear Wheel Tread Spacings ................. 65 Front Axle Adjustment . . . . . . . . . . . . . . . . . . . . 66 Rear Wheel Hub Adjustments and Bolt Torques 67,68 Power Shift Rear Wheel Adjustment. . . . . . . . . .. 69 Manual Shift Rear Wheel Adjustment. . ......... 70 Rear Wheel and Front End Weights. . . . . . . . . . 71 Rear Tire Liquid Weight . . . . . . . .. . . .. .... 71

PREVENTIVE MAINTENANCE. . . . . . . . . . . . .72-110 CoolingSystem ................... .73,74 Radiator Shutters. . . . . . . . . . . . . . . . . . 75 Thermostat Replacement. . . . . . . . . . . . . . . . . 75 Cleaning the Cooling System. . . . . . . . . . . ... 76 Fan Belt. . . . . . . . . . . . . . . . . . . . . . . . ... 77 Power Steering Drive Belt. . . . . . . . . . . . . ... 78 Diesel Fuel System. . . . . . . . . . . . . . . . . . 79 thru 81 Bleeding Diesel Fuel System ................ 82 Servicing Diesel Fuel Filters ................ 83 Replacing Diesel Fuel Filters ................ 84 Gasoline Fuel System. . . . . . . . . . . . . . . . . .. 85,86 Electric Fuel Pump Filter ........... . ... 85 Carburetor .......................... 85,86 LP Gas Fuel System .................... 87-93 LP Gas Safety Precautions . . . . . . . . . ........ 87 Filling LPG Fuel Tank . . . . .. . . . . . . . . . . .. 88,89

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TABLE OF CONTENTS (continued)

PREVENTIVE MAINTENANCE (Continued) Emptying LPG Fuel Tank .................. 89 Checking Liquid Fuel Filter. . . . . . . . . . . . . . . .. 90 LPG Starting, Load and Idle Adjustments. . . . . .. 91,92 LPG Liquid Fuel Filter. . . . . . . . . . . . . . . . 93 Adjusting Differential Brakes .. . . . . . .. 94,95 Traction Clutch Adjustment. . . . . . . . . 96,97 Safety Starting Switch Adjustment . . . . . . . . . 98 PTO Clutch Adjustment. . . . . . . . . . . . . 99 PTO Clutch Brake Adjustment . . . . . .. 100 Ignition System ............ .. 101-104 Spark Plugs. . . . . . . . . . . . . . . . . . . .. 101 Distributor . . . . . . . . . . . . . . . . . . . . .. . 102,103 Checking and Setting Ignition Timing . . . . . . . . . . 104 Electrical System. . . . . . .. Headlights. . . . . . . . . . . . Instrument Panel Lights .

. .. 105-110 •. 105

Rear Light ............... " ... . 105 106 106 Cultivator Lights ...... .

Rear stop and Tail Lights . . . Implement Warning Lamp .... Flashing Amber Warning Lamp .

. . 106

· . . 107 . • . • . 107

Storage Batteries .......... . · •...... 108-110 OPERATOR'S CAB ... . · . . . . 111-112

Pressurizer Air Filter . . • . • . • . • . . . . • . 112

NOTE The J. I.Case Company reserves the right to make improvements

in design or changes in specifications at any time without incurring any

obligation to install them on units previously sold.

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