All 90 pages of this Case IH 844 Operator Manual (OEM #1091240R2) focus on one thing: keeping your 644, 744, 844, and 844S diesel tractors running right, from the morning walkaround to seasonal storage. Inside: a full wiring diagram section, a complete Instruments and Controls walkthrough covering the instrument cluster, speed range lever, differential lock, and hydraulic controls, plus a Lubrication Guide that maps every service interval from daily checks through long-term storage. You also get fluid capacity tables, tire pressure specs, recommended lubricants, and a Trouble Shooting section that covers engine, fuel, cooling, and hydraulic draft faults. Set brake pedal free travel to 45-50 mm and watch the clutch: the manual flags when free travel drops to 10 mm and tells you exactly what to adjust. No more hunting through paper binders in the cab. Grab this PDF, bookmark your way to any section, and get the right answer before you pick up a wrench.
What's Inside This Case IH 644, 744, 844, 844S Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 6-10 | Index, General Instructions, Safety Precautions |
| Technical Data | 16-23 | Capacities, Dimensions, Travelling Speeds, Recommended Lubricants, Oil Specifications, Tire Pressures |
| Preparing the Tractor for Each Day's Work | 24 | Fuel, Crankcase Oil, Water Trap |
| Instruments and Controls | 25-31 | Instrument Cluster, Control Levers, Speed Range Lever, Gearshift Lever, Differential Lock, Hydraulic Controls |
| Operating the Tractor | 32-33 | Breaking-In Period, Starting the Engine, Stopping the Engine, Cold Weather Precautions, Operator's Seat, Towing the Tractor |
| Operating Adjustments | 34-39 | Weights, Liquid Weight, Adjusting Front Wheel Tread Width, Adjusting Rear Wheel Tread Width, Antifreeze Solution |
| Operating Equipment | 40-49 | Power Take-Off, Trailer Hitch, Drawbar, Three-Point Suspension Hitch, Hydraulic Lift, Front Loader |
| Maintenance | 50-81 | Lubrication Guide, Engine Oil, Fuel System, Cooling System, Transmission Oil, Brakes |
| Storing and Housing Your Tractor | 82 | Fuel IH-Desolite Mixture, Engine Oil, Oil Filter, Crankcase with Protection Oil, Fuel Tank, Cooling System, IH-Anti-Freeze Solution, Battery |
| Trouble Shooting | 83-90 | Engine Operation, Fuel System, Cooling System, Hydraulic Draft and Position Control System, Hydrostatic Power Steering |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Clutch release bearing maintenance | Grease | p. 51 |
| Clutch lining wear adjustment threshold (Engine clutch) | 10 mm (when free travel decreases to) | p. 70 |
| Clutch lining wear adjustment threshold (PTO clutch) | 10 mm (when play decreases to) | p. 70 |
| Brake pedal free travel | 45-50 mm | p. 71 |
| Parking brake lining replacement condition | If the whole adjustment range is used up | p. 73 |
| Transmission oil level plug packing ring torque | 10 daNm | p. 65 |
| Engine clutch free travel adjustment threshold (to prevent premature wear) | 10 mm (when free travel decreases to) | p. 70 |
| PTO clutch lever play adjustment threshold (to prevent premature wear) | 10 mm (when play decreases to) | p. 70 |
| PTO Shaft Speed (540/min) Torque | 175 daNm | p. 40 |
Case IH 644, 744, 844, 844S Common Problems This Manual Covers
Case IH 644 clutch slips under heavy load and pedal feels loose or has too much travel p. 70
Inspect the engine clutch pedal free travel on page 70. Measure the gap and adjust the linkage as soon as free travel decreases to 10 mm. Grease the clutch release bearing according to the schedule on page 51 to prevent premature wear.
Manual Section: Clutch AdjustmentOperator reports spongy brake feel or unequal grip when pressing both pedals at the same time p. 71
Test the brake pedal free travel as shown on page 71. Adjust the linkage rods until you measure exactly 45-50 mm of free travel. Verify both pedals have equal resistance to prevent pulling during transport. Check the parking brake adjustment range on page 73.
Manual Section: Brake AdjustmentGear oil leaking from the transmission case bottom near the level check and drain plug area p. 65
Drain the fluid and inspect the plug threads. Reinstall the plug using a new packing ring as instructed on page 65. Torque the fitting to 10 daNm to ensure a proper seal. Refill the transmission with the recommended lubricant and check for leaks.
Manual Section: MaintenanceEngine temperature gauge spikes into the red zone during field work or heavy PTO operation p. 83
Check the engine troubleshooting guide on page 83. Inspect the radiator fins for debris and clean them thoroughly. Never pour cold water into the radiator while the engine is hot. Verify the implement does not exceed the maximum PTO shaft torque of 175 daNm.
Manual Section: Engine TroubleshootingFrequently Asked Questions
What is the torque spec for the tie rod clamp bolts?
For the tie rod lever, the clamping bolts should be retightened to a torque of 19-20 daNm. This is part of the additional inspection points for the tractor.
What is the torque specification for front axle extension bolts?
The clamping bolts (1) for the front axle extensions should be tightened to a torque of 28 daNm. It is recommended to recheck this torque after 10 operating hours.
How do you adjust the engine clutch pedal free travel on Case IH 644, 744, 844, 844S tractors?
Inspect the engine clutch pedal free travel on page 70. Measure the gap and adjust the linkage as soon as free travel decreases to 10 mm.
What is the correct brake pedal free travel for the Case IH 644, 744, 844, 844S tractor?
Brake pedal free travel should be set to 45-50 mm as specified on page 71 of the operator manual. Check and adjust both pedals equally to ensure even braking. Always test brakes after adjustment before returning the tractor to service.
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