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Case IH JX-75 Troubleshooting

The Case IH JX75 is a 2WD or 4WD utility tractor. This model was manufactured by Turk Tractor built from 2002 to 2006. The Case IH JX-75 tractor is powered by 239 cu.in (3.9 L) Iveco 8045 4-cylinder direct injection diesel engine with a rated power of 72 hp (53.7 kW).

The Case IH JX75 is fitted with a two transmission options: mechanical shuttle transmission with 12 forward and 12 reverse gears, or creeper transmission with 20 forward and 12 reverse gears. The maximum travel speed (forward/reverse): 17.5 mph (28.2 km/h) and 17.6 mph (28.3km/h).

The open center hydraulic system has a gear pump with a rated capacity of 13.6 gpm (51.5 lpm). The lift capacity is 5025 lbs (2280 kg) at lift pin. The 2WD models are equipped with 11.2R24 front tires and 16.9R30 rear tires. The 280/85R28 front tires and 380/85R38 rear tires are used for 4WD tractors. The wheelbase is 88.5 inches (2240 mm).

Engine Troubleshooting
Engine difficult to start or will not start

Air trapped in fuel system - Bleed air.
Clogged fuel filter - Install new filter element.
Clogged injection nozzle - Clean or replace injection nozzles.
Water or dirt in fuel system - Drain, flush, and service the system.
The valve clearance is not adjusted - Adjust valve clearance.
Fuel injection pump is not operating properly - Repair or install a new fuel pump.

Diesel starts and stops

Air cleaner is dirty - Carry out maintenance on air filter.
Fuel filter element clogging - Clean or change the filter.
Poor fuel injection pump tightness - Look for any leaks of fuel pump Tighten it fast.
Dirty or defective injectors - Clean or replace fuel injectors.
Defective fuel injection pump - Replace or rebuild injection pump.

Diesel shuts off while driving

Coolant temperature is low - Warm up the engine.
Clogged fuel filter - Clean or change the filter.
There is air in the fuel system - Bleed the system.
Faulty or dirty injection nozzles - Clean or replace injection nozzles.
Fuel injection pump timing is wrong - Adjust according to specifications.

Engine shuts off while idling

Low idle speed set incorrectly - Adjust as required.
Fuel injection pump failure - Rebuild or replace pump.
Fuel injector fault - Replace fuel injectors.
Valve out of adjustment - Adjust to proper valve clearance.

Engine power is reduced

Clogged air filter - Clean or replace element.
Fuel injection nozzles are clogged or faulty - Clean or replace injection nozzles.
Incorrect fuel injection pressure - Check the fuel injection pressure and adjust if necessary.
Incorrect valve clearance - Adjust valve clearance.
Low idle speed setting is incorrect - Adjust as required.
Fuel hoses or lines clogging - Fuel hoses and lines must be clean.
Cylinder head gasket is defective - Replace the gasket as required.
Piston rings are worn or defective - Piston rings replacement required.

Engine is overheated

Insufficient coolant fluid - Add coolant fluid to cooling system and also check it for leaks.
Engine oil level low - Check and refill engine oil.
Radiator core is clogged or radiator cap is leaking - Clean radiator or replace cap.
Fan belt slipping or worn - Belt replacement is recommended.
Engine overloaded - Reduce load or shift to lower gear.

Oil pressure is insufficient

Insufficient engine oil - Need to add oil.
Dirty oil filter element - Service or replace engine oil filter.
Incorrect engine oil Use oil of correct viscosity.
Excessive oil clearance of crankshaft bearing - Bearings need to be reinstalled.
Oil pump failure - Replace as required.

Abnormal engine knocking or noise

Not enough engine oil - Fill up the oil to required level.
Low coolant temperature - Engine is not warmed up to the required temperature.
Improper fuel injection timing - Check the fuel injection pump timing adjustment.
Improperly adjusted low idle speed - Need to adjust idle speed.
Fuel injector fault - Clean fuel injectors or change it.
Connecting rod misalignment or failure - Need to align or replace the connecting rod.
Piston wear or scoring - Replace the pistons.

Transmission Troubleshooting
Transmission fluid pressure is insufficient

Lack of transmission fluid - Fill the transmission housing to proper fluid level.
Transmission fluid filter element clogging (if equipped) - Replace or service transmission fluid filter.
Stuck relief valve - Replace relief valve as required.

Transmission is excessively noisy

Transmission fluid insufficient - Add fluid to the transmission housing.
Transmission oil contamination - Change the oil.
Damaged gears or incorrect backlash - Change the gears or set backlash properly.
Bearings are broken or worn - Bearings replacement required.
Worn or damaged gear shift forks - Replace the shift forks.
Shaft splines are damaged or worn - Replace the shaft.

Difficult to shift gears

Gear shift linkage is rusty or worn - Install new shift linkage.
Worn or bent shift forks - Shift forks need to be changed.
Gearshift mechanism is damaged - Replace or repair the mechanism.
Malfunction or incorrect clutch adjustment - Adjust or replace the clutch.

Transmission fluid leakage

Transmission oil level is high - Correct the oil volume.
Seals or gaskets are worn - Install new seal or gaskets.

Hydraulics Troubleshooting
Low hydraulic fluid pressure

Insufficient hydraulic oil - Need to add oil.
Clogged hydraulic fluid filter element - Hydraulic filter maintenance required.
Damaged hydraulic pump - Install a new hydraulic oil pump.
Hydraulic control valve block is set improperly - Set properly.
Hydraulic cylinder is broken - Repair or replace hydraulic cylinder.
Leaking hydraulic pipes - Inspect the system for leaks and fix it.

Hydraulic system overheats

Main relief valve malfunctioning - Relief valve must be changed.
Hydraulic oil type is improper - Fill up with the proper type of oil.
Hydraulic oil is contaminated - Fill up with fresh hydraulic oil.
Air in hydraulic pipes - Bleed hydraulic pipes.

Three-point hitch cannot be lifted or lifting is too slow

Excessive hitch loading - Reduce the load is required.
Hydraulic oil is insufficient - Checking hydraulic oil level and add if necessary.
Hydraulic oil filter element is clogged - Clean the hydraulic filter or install new filter element.
Faulty hydraulic pump - Change or repair hydraulic oil pump.
Damaged main relief valve - Relief valve must be changed.
Defective hydraulic spool valve - Install a new hydraulic valve or repair it.
Hydraulic cylinder malfunction - Repair or install a new hydraulic cylinder.
Suction line is broken or disconnected - Connect or replace.

Hitch fails to drop or drops slowly

Hydraulic control valve block is set improperly - Set properly.
Hydraulic cylinder is defective - Install a new hydraulic cylinder or repair it.
The hitch is not adjusted - Adjust as required.
Lift arm shaft is worn - Install a new shaft.

Hitch lift or lower is jerky

Air in the hydraulic system - Air bleeding.
Hydraulic oil is contaminated - Fill up with fresh hydraulic oil.
Hydraulic pump is faulty - Change or repair hydraulic oil pump.
Defective hydraulic spool valve block - Replace or repair the valve.
Damaged hydraulic cylinder - Change or repair hydraulic cylinder.

Steering Troubleshooting
Steering is stiff

Incorrectly assembled or damaged steering column - Reassemble the steering column correctly or change it.
Air trapped inside steering system - Air-bleed steering system.
Incorrect toe-in - Check toe-in and correct.
Tyre pressure is uneven - Adjust the tyre pressure.
Hydraulic steering pump is defective - Replace or repair steering pump.
Stuck or worn pump flow control valve - Install a new flow control valve or clean it.
Steering oil level low - Add oil to steering system.

Excessive steering wheel play

Steering column coupling or shaft is extremely worn out - Replace defective component.
Hydraulic steering pump is defective - Check the hydraulic steering pump and change if necessary.
Loose or worn steering linkage parts - Inspect and replace as required.

Front wheels wander to right or left

Tire pressure uneven - Inflate the tires correctly.
Incorrect toe-in - Adjust toe-in wheels.
Loose or worn steering linkage parts - Inspect and replace as required.
Improperly adjusted or defective front wheel bearings - Adjust correctly or change bearings.

Electrical Troubleshooting
Battery is not charging

Electrical wire connections are loose or corroded - Clean or tighten connections.
Battery terminal connectors are defective - Terminal connectors need to be changed.
Dead cell in battery - Install a new battery.
Damaged or loose belt - Need to adjust belt tension or replace belt.

Starter turns slow

Battery voltage is low - Low battery charging, charge as required.
Battery runs out quickly - Service battery or change it.
Disconnected cables or faulty battery terminals - Check cable connections and change or clean terminals.

Starter will not work

Battery is discharged or defective - Recharge or change battery.
Battery wiring is disconnected or improperly connected - Inspect wiring and connect as required.
Low battery output voltage - Battery is drained, recharge it.
Defective starter motor - Repair or change starter.



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