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Case IH 845 XL Troubleshooting

The Case IH 845XL utility tractor was manufactured between 1987 and 1996. The Case IH 845 XL driveline consists of International D268 4-cylinder direct injection liquid-cooled diesel engine and 16x8 IH Total-Synchron fully synchronized transmission.

A 268 cubic inches (4.4 L) engine has a cylinder bore of 3.94" (100 mm), piston stroke of 5.5" (140 mm), and rated power of 80 hp (59.7 kW). The maximum forward speed - 10.8 mph (17.4 km/h), maximum reverse speed - 18 mph (28.9 km/h).

The open center hydraulic system includes a gear pump with rated fluid flow of 8.7 gpm (32.9 lpm). The hydraulic system pressure is 167 bar (2420 psi). The Case IH 845XL is equipped with a hydrostatic power steering, wet disc brakes, 10.0-R16 (2WD) or 11.2-R28 (4WD) front tyres, and 18.4-R34 rear tyres. The wheelbase is 94.1" (2390 mm) for 2WD tractors and 92.5" (2340 mm) for 4WD tractors.

Engine Troubleshooting
Engine starts hard or will not start

Air in the fuel lines - Bleed the fuel lines.
Dirty fuel filter - Replace filter element.
Dirty or damaged injection nozzles - Check injection nozzles and replace if required.
Dirt or water in fuel system - Drain water or flush dirt from the system.
Valve clearance is out of adjustment - Have it adjusted.
Defective fuel injection pump - Repair or change injection pump.

Diesel starts but stalls suddenly

Air filter clogged - Carry out maintenance on air filter.
Fuel filter plugging - Change filter element.
Fuel injection pump is leaking - Repair any leaks.
Dirty or defective injectors - Change or clean fuel injectors.
Fuel injection pump failure - Repair or replace injection pump.

Diesel shuts off while driving

Engine is not fully warmed up - Engine is not warmed up to the required temperature.
Fuel filter plugged - Install new filter element.
Air in fuel tank - Bleed fuel tank.
Damaged or dirty injection nozzles - Clean or change injection nozzles.
Wrong setting of fuel injection pump timing - Adjust as recommended.

Engine shuts off while idling

Incorrectly adjusted low idle speed - Adjustment required.
Fuel injection pump is not operating properly - Rebuild or install a new injection pump.
Dirty or defective injectors - Replace fuel injectors.
Valve out of adjustment - Need to adjust valve clearance.

Poor engine power

Air cleaner is dirty - Air filter maintenance required.
Fuel injection nozzles are faulty or clogged - Install a new kit of correctly balanced nozzles.
Incorrect fuel injection pressure - Check the fuel injection pressure and adjust if necessary.
Valve clearance is wrong - Adjust valve clearance.
Incorrect low idle setting - Test and adjust.
Dirt in the fuel lines or hoses - Service fuel lines and hoses.
Cylinder head gasket is damaged - Replace the gasket as required.
Piston rings are defective or leaking - Piston rings replacement required.

Engine is overheated

Engine has a lack of coolant - Fill radiator to proper level and check components for faults.
Engine oil level is insufficient - Fill the crankcase with engine oil.
Radiator core is clogged or radiator cap is leaking - Clean radiator or install new cap.
Broken or loose fan belt - If necessary, replace the belt.
Engine is under excessive load - Reduce load on the engine.

Low oil pressure

Lack of oil - Add oil as required.
Oil filter is clogged - Replace or service engine oil filter.
Improper type of engine oil - Drain crankcase and refill with correct oil.
Excessive oil clearance of crankshaft bearing - Change bearings.
Defective oil pump - Replace as required.

Engine noise or knocking

Low engine oil level - Need to add engine oil.
Engine not warmed up - Warm up engine as required.
Wrong setting of fuel injection pump timing - Adjust the pump as required.
Incorrectly set low idle speed - Adjustment required.
Clogged or defective injectors - Clean fuel injectors or change it.
Connecting rod is worn or misaligned - Need to align or replace the connecting rod.
Scored or worn pistons - Replace the pistons as required.

Transmission Troubleshooting
Lack of transmission oil pressure

Transmission oil level is low - Fill the transmission housing with oil.
Transmission oil filter is clogged (if fitted) - Clean or replace the transmission filter.
Stuck relief valve - Change relief valve.

Excessive transmission noise

Lack of transmission oil supply - Fill the transmission housing with oil.
Transmission oil is contaminated - Transmission oil change required.
Gears are defective or backlash is improper - Replace gears or adjust backlash correctly.
Worn or damaged bearings - Faulty bearings should be changed.
Shift forks are worn or bent - Replace defective shift forks.
Shaft splines are damaged or worn - Replace the shaft.

Hard to shift gears

Corroded or worn gear shift linkage - Install new shift linkage.
Damaged or worn gear shift forks - Replace defective shift forks.
Gearshift mechanism is damaged - Replace or repair the mechanism.
Clutch is out of adjustment or defective - Clutch needs to be adjusted or changed.

Transmission fluid leakage

Transmission fluid level is exceeded - Excess fluid must be drained.
Seals or gaskets are broken - Gaskets or seal need to be replaced.

Hydraulics Troubleshooting
Hydraulic oil pressure is low

Low hydraulic oil level - Check and refill the hydraulic oil.
Hydraulic oil filter is clogged - Clean the hydraulic filter or install new filter element.
Hydraulic pump is faulty - Repair or replace hydraulic oil pump.
Hydraulic spool valve is not set properly - Set the spool valve properly.
Damaged hydraulic cylinder - Repair or change hydraulic cylinder.
Leaks in hydraulic lines - Check the system and repair leaks.

Hydraulic system is overheated

Main relief valve is faulty - Relief valve need to be replaced.
Wrong hydraulic oil type - Fill up with the correct type of oil.
Contaminated hydraulic fluid - Change hydraulic fluid.
Air in the hydraulic system - Air bleeding.

3-point hitch fails to lift or lifts slowly

Excessive hitch loading - Reduce hitch load.
Insufficient hydraulic fluid - Add fluid as required.
Dirty hydraulic fluid filter - Service or replace the hydraulic filter.
Defective hydraulic pump - Install a new hydraulic oil pump.
Main relief valve malfunction - Relief valve need to be replaced.
Hydraulic spool valve is faulty - Replace or repair the valve.
Hydraulic cylinder is defective - Change or repair hydraulic cylinder.
Suction pipe is loose or broken - Repair or replace pipe.

Hitch cannot be dropped or dropping is too slow

Incorrect setting hydraulic control valve - Use the correct adjustment.
Broken hydraulic cylinder - Repair or change hydraulic cylinder.
3-point hitch is out of adjustment - Adjust as required.
Damaged hitch cross shaft - Replace the shaft.

Jerky lowering or lifting of the hitch

Air in hydraulic pipes - Bleed hydraulic pipes.
Hydraulic fluid is contaminated - Fill up with new hydraulic fluid.
Defective hydraulic pump - Change or repair hydraulic oil pump.
Hydraulic spool valve is faulty - Repair or change the valve.
Damaged hydraulic cylinder - Install a new hydraulic cylinder or repair it.

Steering System Troubleshooting
Steering is hard

Defective or incorrectly mounted steering column - Change steering column or mount correctly.
Air in steering hydraulic system - Bleed the steering system.
Not adjusted toe-in - Adjust toe-in wheels.
Uneven tyre pressure - Inflate the tyres properly.
Steering pump failure - Repair or change steering pump.
Steering pump control valve is worn or stuck - Service or change control valve.
Steering fluid level is insufficient - Add oil to steering system.

Steering wheel has too much free-play

Steering column shaft or coupling has maximum wear - Replace faulty component.
Steering pump failure - Repair or replace steering pump.
Worn or loose steering linkage joints - Check and change as required.

Front wheels wander to right or left

Front tires are worn unevenly - Install new tires.
Improper toe-in - Adjust toe-in wheels.
Worn or loose steering linkage assembly - Inspect and change as required.
Defective or improperly adjusted front wheel bearings - Replace the bearings or adjust it properly.

Electrical Troubleshooting
Battery will not charge

Electrical cable connections are corroded or loose - Service or tighten cable connections.
Electrical terminal connectors are defective - Terminal connectors need to be changed.
Battery is worn - Battery change required.
Worn or loose belt - Change belt or adjust belt tension.

Starter turns slowly

Low battery capacity - Low battery charging, charge as required.
Battery discharges quickly - Service charging system or install new battery.
Battery terminals are corroded or wires are disconnected - Connect wiring properly or install new terminals.

Starter motor is not working

Battery is drained or defective - Battery needs to be recharged or replaced.
Disconnected or incorrectly connected wires - Inspect battery wires and connect correctly.
Low battery output voltage - Battery is drained, recharge it.
Starter motor is faulty - Repair or replace starter.



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