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| Home / Farm Tractors / Case IH Tractors / Case IH 844XL |
Case IH 844 XL Troubleshooting
The
Case IH 844 XL utility tractor was manufactured between 1985 and 1987. This
tractor is powered by International Harvester D-268 4-cylinder liquid-cooled 5 L
displacement diesel engine with a maximum power of 80 hp (59.7 kW) and 296 Nm
(218 lb-ft) of peak torque at 1300 rpm.
The Case IH 844 XL fitted with 2 transmission options: 16-speed range IH total-synchron transmission (16x8), or 8-speed range transmission (8x4). Max. travel speed (forward/reverse): 18.6 mph (30 kph) and 10.8 mph (17.5 kph).
The open center hydraulic system used a gear pump with a rated capacity of 8.7 gallons per minute (33 l/min). The hydraulic pressure is 175 bar (2540 psi). The front tires are 7.50x18 (2-wheel drive) and 12.4R24 (4-wheel drive). The rear tire size: 16.9R34. The wheel base is 94.1" (2390 mm) for 2WD models and 92.5" (2340 mm) for 4WD models.
| Engine Troubleshooting |
| Engine hard to start or will not start |
Air in the fuel pipes - Bleed the fuel pipes.
Clogged fuel filter - Service the filter.
Fuel injection nozzles are damaged or dirty - Service or change injection nozzles.
Water or dirt in fuel system - Drain, flush, and service the system.
Excessive valve clearance - Correct valve clearance needs to be set.
Fuel injection pump failure - Replace or rebuild injection pump.
| Diesel starts and stalls immediately |
Clogged air filter - Clean or change.
Fuel filter element is clogged - Service the filter.
Poor fuel injection pump tightness - Look for any leaks of fuel pump Tighten it fast.
Clogged or defective injectors - Clean or replace fuel injectors.
Defective fuel injection pump - Replace or rebuild injection pump.
| Engine stops running suddenly |
Engine is cold - Normalize the temperature by warming up the engine.
Fuel filter plugged - Service the filter.
Air trapped in fuel system - Bleed air.
Fuel injection nozzles fault - Change fuel injection nozzles.
Improper fuel injection timing - Adjust according to specifications.
| Engine stops when idling |
Low idle speed adjustment is incorrect - Correct low idle settings.
Damaged fuel injection pump - Repair or install a new fuel pump.
Dirty or defective injectors - Clean fuel injectors or change it.
Improper valve clearance - Have it adjusted.
| Poor engine power |
Air filter is dirty - Change air filter element.
Fuel injection nozzles are clogged or faulty - If necessary, replace with a new nozzle.
Fuel injection pressure is wrong - Correct the pressure settings.
Improper valve clearance - Correct valve clearance needs to be set.
Low idle speed setting is not correct - Adjust the low idle speed.
Dirt in the fuel lines or hoses - Fuel hoses and lines must be clean.
Damaged cylinder-head gasket - Cylinder-head gasket replacement required.
Piston rings are worn or damaged - Replace the piston rings as required.
| Engine is overheated |
Engine has a lack of coolant - Fill radiator to proper level and check components for faults.
Not enough engine oil - Check oil level and add oil as required.
Damaged radiator cap or dirty radiator core - Change cap or clean radiator.
Broken or loose fan belt - Change the fan belt.
Engine overload - Reduce engine load.
| Low oil pressure |
Not enough oil in the engine - Fill crankcase to proper oil level.
Dirty oil filter - Clean or replace engine oil filter element.
Different type of engine oil - Use proper viscosity oil.
Incorrect oil clearance in crankshaft bearing - Change bearings.
Oil pump is worn or damaged - Install a new pump.
| Engine knocking sound or abnormal noise |
Insufficient engine oil - Add oil to the engine crankcase.
Engine is cold - Warm up the engine.
Fuel injection pump timing is not adjusted - Use the correct fuel injection pump timing adjustment.
Incorrect low idle speed adjustment - Test and adjust.
Fuel injector fault - Replace or clean fuel injectors.
Connecting rod failure or misalignment - Need to replace or align the connecting rod.
Broken or worn pistons - Pistons need to be replaced.
| Transmission Troubleshooting |
| Transmission oil pressure is insufficient |
Insufficient transmission fluid - Add fluid to the transmission housing.
Transmission oil filter element clogging (if equipped) - Clean or replace the transmission filter.
Stuck relief valve - Install a new valve.
| Transmission noise |
Lack of transmission oil supply - Fill up the transmission oil.
Transmission oil is contaminated - Transmission oil change required.
Improper backlash or worn gears - Change the gears or set backlash properly.
Worn or damaged bearings - Change faulty bearings.
Worn or bent shift forks - Change the shift forks.
Worn or stuck shaft splines - Shaft need to be changed.
| Hard shifting |
Stuck or worn gear shift linkage - Shift linkage need to be replaced.
Worn or bent gear shift forks - Change defective shift forks.
Worn out parts of the gearshift mechanism - Replace worn parts.
Clutch is out of adjustment or defective - Replace or adjust clutch.
| Transmission oil leakage |
Transmission fluid level is high - Correct the fluid level.
Damaged seals or gaskets - Seals and gaskets need to be replaced.
| Hydraulics Troubleshooting |
| Insufficient hydraulic fluid pressure |
Insufficient hydraulic oil - Need to add oil.
Clogged hydraulic fluid filter - Clean or change hydraulic filter.
Faulty hydraulic pump - Repair or replace hydraulic oil pump.
Not adjusted hydraulic control valve - Need to adjust.
Damaged hydraulic cylinder - Repair or replace hydraulic cylinder.
Leaks in hydraulic pipes - Inspect the system for leaks and fix it.
| Hydraulic system overheating |
Main relief valve failure - Relief valve replacement required.
Incorrect type of hydraulic oil - The correct type of oil must be used.
Contaminated hydraulic oil - Change hydraulic oil.
There is air in the hydraulic system - Bleed hydraulic system.
| Hitch not raising or hitch raises slowly |
Excessive hitch loading - Load needs to be reduced.
Hydraulic oil level low - Check and refill the hydraulic oil.
Clogged hydraulic oil filter - Clean the hydraulic filter or install new filter element.
Faulty hydraulic pump - Repair or replace hydraulic fluid pump.
Main relief valve malfunctioning - Relief valve must be changed.
Faulty hydraulic spool valve - Repair or replace hydraulic valve.
Hydraulic cylinder not working - Repair or install a new hydraulic cylinder.
Loose or broken suction line - Tighten the pipe or replace it.
| 3-point hitch can't drop or drops too slowly |
Hydraulic control valve block is out of adjustment - Control valve needs to be adjusted.
Broken hydraulic cylinder - Install a new hydraulic cylinder or repair it.
Three-point hitch has not been adjusted - Adjustment is required.
Hitch cross shaft is worn - Change the shaft.
| Hitch drop or lift is jerky |
Air in hydraulic system - Bleed air from hydraulic system.
Hydraulic fluid contamination - Change hydraulic fluid.
Hydraulic pump not working - Repair or replace hydraulic oil pump.
Defective hydraulic control valve - Repair or change hydraulic valve.
Hydraulic cylinder is defective - Repair or replace hydraulic cylinder.
| Steering System Troubleshooting |
| Steering is stiff |
Improperly assembled or defective steering column - Reassemble or change the steering column.
Air in steering hydraulic system - Air-bleed steering system.
Incorrect toe-in - Adjust toe-in properly.
Front tyres wear unevenly - Change the tyres.
Defective hydraulic steering pump - Install a new steering pump.
Faulty or stuck pump flow control valve - Install a new flow control valve or clean it.
Not enough steering fluid - Fill up steering fluid to required level.
| Excessive steering wheel free play |
Steering column coupling or shaft has maximum wear - Replace defective component.
Steering pump is worn - Check the hydraulic steering pump and change if necessary.
Steering linkage components are loose or worn - Check and change as required.
| Tractor pulls to left or right |
Uneven tyre pressure - Inflate the tyres properly.
Not adjusted toe-in - Check and adjust toe-in.
Loose or worn steering linkage parts - Check and replace as required.
Front wheel bearings are defective or improperly adjusted - Adjust correctly or change bearings.
| Electrical System Troubleshooting |
| Battery cannot be charged |
Corroded or loose electrical wire connections - Tighten or service connections.
Faulty battery terminal clamps - Change terminal clamps.
Dead cell in battery - Replace the battery.
Belt is damaged or loose - Replace belt or adjust belt tension.
| Starter turns slow |
Low battery capacity - Recharge the battery.
Battery won’t hold charge - Battery needs to be serviced or replaced.
Corroded battery terminals or disconnected wires - Check battery wires and service or replace terminals.
| Starter doesn't crank |
Battery is drained or defective - Battery needs to be recharged or replaced.
Wiring harness is disconnected or improperly connected - Check wiring harness and connect as required.
Low battery power - Recharge the battery.
Defective starter motor - Starter should be changed.
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| Farm Tractors Technical Specifications |