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| Home / Farm Tractors / Case IH Tractors / Case IH JXU105 |
Case IH JXU105 Troubleshooting
The
Case IH JXU 105 is a four-wheel drive farm tractor. The components of Case IH
JXU105 powerline system: A 274 (4.5 L) cubic inches CNH NEF F4C 4-stroke
6-cylinder in-line turbocharged intercooled diesel engine with power rating of
104.6 Hp (78 kW), and 24x24 two-speed powershift transmission, or 20x12
mechanical shuttle transmission with creeper.
Max. forward speed - 24.9 mph (40 km/h). The open center hydraulic system used a gear pump with a flow of 16.2 gpm (61.1 lpm) or 21.1 gpm (80 lpm). The hydraulic system pressure is 2875 psi (198 bar).
The rear lift capacity is 10780 lb (4900 kg) at lift pin. The Case IH JXU105 is equipped with a hydrostatic power system, hydraulic disc brakes, 380/70R24 front tires, and 480/70R34 rear tires. The wheel base is 92.5 inches (2350 mm).
| Engine Troubleshooting |
| Engine starts hard or will not start |
Air trapped in fuel system - Bleed air.
Clogged fuel filter - Install new filter element.
Dirty or faulty injection nozzles - Change fuel injection nozzles.
Water or dirt in fuel system - Drain, flush, and service the system.
The valve clearance is incorrect - Adjust valve clearance.
Fuel injection pump is broken - Change or repair the pump.
| Diesel starts and suddenly stops |
Plugged air filter - Change air filter element.
Fuel filter plugging - Change the filter element.
Problems with fuel injection pump tightness - Inspect fuel injection pump for leaks.
Dirty or defective injectors - Change or clean fuel injectors.
Fuel injection pump is not operating properly - Repair or install a new fuel pump.
| Engine stops running suddenly |
Engine is not preheated - Normalize the temperature by warming up the engine.
Fuel filter plugging - Replace the filter element.
Air in fuel system - Bleed fuel system.
Fuel injection nozzles are faulty or clogged - Clean or replace injection nozzles.
Timing of fuel injection pump is incorrect - Set it up as required.
| Engine stops at idle |
Incorrect low idle speed adjustment - Adjust the low idle speed.
Fuel injection pump failure - Replace or repair injection pump.
Defective fuel injectors - Clean or replace fuel injectors.
Valve out of adjustment - Adjust valve clearance according to specifications.
| Engine power is insufficient |
Plugged air cleaner - Clean or change.
Defective injection nozzle - Inspect nozzles and replace if necessary.
Fuel injection pressure is incorrect - Test fuel injection pressure and adjust it correctly.
The valve clearance is not adjusted - Adjust valve clearance according to specifications.
Incorrect low idle speed adjustment - Adjustment required.
Fuel hoses or lines are clogged - Fuel hoses and lines must be clean.
Worn cylinder head gasket - Replace cylinder head gasket.
Worn or broken piston rings - Replace the piston rings as required.
| Engine is overheated |
Lack of engine coolant - Refill to the correct level and inspect system for leaks.
Low engine oil level - Fill the crankcase with engine oil.
Clogged radiator core or leaking radiator cap - Change cap or clean radiator.
Fan belt is broken or worn - If necessary, replace the belt.
Diesel engine overloaded - Reduce the load or use a lower gear.
| Oil pressure too low |
Low oil level - Add oil as required.
Oil filter clogged - Service or change engine oil filter element.
Incorrect oil viscosity - Use oil of proper viscosity.
Excessive crankshaft bearing oil clearance - Bearing replacement required.
Oil pump failure - Remove and inspect oil pump.
| Engine knocking sound or abnormal noise |
Insufficient engine oil - Check and refill engine oil.
Engine is cold - Normalize the temperature by warming up the engine.
Improper setting of fuel injection pump timing - Set up as recommended.
Low idle speed setting is not correct - Correct the settings.
Clogged or defective injectors - Clean fuel injectors or change it.
Connecting rod is defective or misaligned - Align or replace connecting rod.
Pistons are worn or broken - Pistons replacement required.
| Transmission Troubleshooting |
| Insufficient transmission oil pressure |
Low oil level - Fill up the transmission oil.
Clogged transmission oil filter element (if fitted) - Service or replace the transmission oil filter.
Defective relief valve - Install a new valve.
| Transmission is excessively noisy |
Low oil level - Add oil to the transmission housing.
Transmission oil is contaminated - Transmission oil change required.
Gears are damaged or backlash is incorrect - Change worn gears or adjust backlash correctly.
Worn or damaged bearings - Change faulty bearings.
Shift forks are worn or bent - Install new shift forks.
Stuck or worn shaft splines - Replace the shaft.
| Gears are hard to shift |
Rusty or worn gear shift linkage - Install new shift linkage.
Damaged or worn gear shift forks - Shift forks need to be replaced.
Defective parts in the gearshift mechanism - Replace defective parts.
Worn or improperly adjusted clutch - Clutch replacement or adjustment required.
| Transmission oil leakage |
High transmission oil level - Correct the oil level.
Seals or gaskets are broken - Install new components.
| Hydraulics Troubleshooting |
| Insufficient hydraulic oil pressure |
Hydraulic oil level low - Fill the system to proper hydraulic oil level.
Hydraulic oil filter is clogged - Clean the hydraulic filter element or replace if necessary.
Hydraulic pump malfunction - Replace or repair hydraulic oil pump.
Incorrect adjusted hydraulic control valve - Adjust correctly.
Defective hydraulic cylinder - Install a new hydraulic cylinder or repair it.
Leaks in hydraulic pipes - Identify leaks in the system and repair it.
| Hydraulic system overheating |
Main relief valve is defective - Relief valve must be changed.
Wrong hydraulic fluid type - Pour the proper type of fluid.
Hydraulic fluid is dirty - Hydraulic fluid change required.
Air in hydraulic lines - Bleed hydraulic lines.
| 3-point hitch cannot be raised or raising is too slowly |
Heavy load on the hitch - The load should be reduced.
Hydraulic fluid level low - Add fluid as required.
Hydraulic oil filter element is clogged - Change the hydraulic filter element or service if required.
Hydraulic pump is faulty - Change or repair hydraulic fluid pump.
Main relief valve failure - Change relief valve.
Defective hydraulic control valve - Repair or change the valve.
Hydraulic cylinder malfunction - Repair or replace hydraulic cylinder.
Suction line is loose or broken - Replace or repair.
| 3-point hitch cannot be lowered or lowering is too slowly |
Incorrect setting hydraulic control valve block - Set correctly.
Hydraulic cylinder failure - Replace or repair hydraulic cylinder.
The hitch has not been adjusted - The three-point hitch must be adjusted.
Damaged hitch rock shaft - Replace the shaft.
| Hitch drop or lift is jerky |
Air in the hydraulic system - Air bleeding.
Hydraulic fluid is dirty - Hydraulic fluid change required.
Hydraulic pump is defective - Change or repair hydraulic oil pump.
Faulty hydraulic control valve - Repair or change the valve.
Hydraulic cylinder is defective - Install a new hydraulic cylinder or repair it.
| Steering Troubleshooting |
| Heavy steering |
Incorrectly mounted or defective steering column - Mount the steering column correctly or replace it.
Air lock in hydraulic steering system - Bleed the system of air.
Incorrect toe-in - Check and adjust toe-in.
Uneven tire pressure - Inflate the tires properly.
Damaged hydraulic steering pump - Install a new steering pump.
Stuck or damaged steering pump control valve - Clean or replace control valve.
Low steering fluid level - Fill the steering system with fluid.
| Excessive play in steering |
Steering column shaft or coupling is worn out - Change faulty part.
Steering pump is faulty - Replace or repair steering pump.
Worn or loose steering linkage assembly - Inspect and replace as required.
| Front wheels wander to right or left |
Uneven wear on front tyres - Replace the tyres.
Improper toe-in - Adjust toe-in properly.
Worn or loose steering linkage joints - Change or repair steering linkage.
Defective or improperly adjusted front wheel bearings - Change or adjust bearings correctly.
| Electrical System Troubleshooting |
| Battery is not charging |
Electrical cable connections are corroded or loose - Clean or tighten connections.
Electrical terminal connectors are faulty - Change terminal connectors.
Battery failing - Change the battery.
Belt is worn or loose - Change belt or adjust belt tension.
| Starter turning slow |
Battery capacity is low - Battery is drained, recharge it.
Battery does not hold charge - Service or change the battery.
Corroded battery terminals or disconnected wires - Check wire connections and change or service terminals.
| Starter motor won't turn |
Battery is drained or defective - Charge or change the battery.
Battery wiring is disconnected or improperly connected - Inspect wiring and connect as required.
Battery voltage is low - Recharge the battery.
Faulty starter motor - Repair or change starter.
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| Farm Tractors Technical Specifications |