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Case IH MX-100 Troubleshooting

The Case IH MX100 is a 2WD or 4WD farm tractor from Maxxum series. This model was manufactured between 1997 and 1999. The components of Case IH MX-100 powerline system: a 359 cubic inches (5.9 L) Cummins B6T-590 6-cylinder direct injection turbocharged diesel engine with a rated power of 100 hp (74.6 kW), and powershift transmission with 16 forward and 12 reverse gears, or creeper transmission with 32 forward and 24 reverse gears.

The maximum travel speed (forward/reverse): 23 mph (37 km/h) and 13.7 mph (22 km/h). The closed center pressure flow compensated hydraulic system includes a pump with rated fluid flow of 25 gal/min (94.6 l/min).

The hydraulic pressure is 203 bar (2950 psi). The Case IH MX100 Maxxum is equipped with a hydrostatic power steering, wet disc brakes, 14.9x28 front tyres, and 18.4x38 rear tyres. The tractor is compatible with Case IH L300 front loader with lift capacity to max height of 2450 lbs (1111 kg) and breakout force of 3150 lbs (1428 kg).

Engine Troubleshooting
Engine difficult to start or won't start

Air in fuel tank - Bleed fuel tank.
Fuel filter plugging - Change the filter element.
Defective or clogged injection nozzle - Test injection nozzles and change if necessary.
Dirt or water in fuel system - Drain water or flush dirt from the system.
Valve clearance is out of adjustment - Need to adjust valve clearance.
Fuel injection pump damage - Repair or install new pump.

Engine starts but stalls suddenly

Air filter is clogged - Replace air filter element.
Fuel filter plugged - Filter maintenance required.
Fuel injection pump has loose connections - Tighten the connections.
Defective fuel injectors - Change or clean fuel injectors.
Defective fuel injection pump - Install a new fuel pump or repair.

Engine stalls during operation

Low coolant temperature - Warm up to required temperature.
Fuel filter plugged - Replace filter element.
Air in fuel system - Bleed fuel system.
Fuel injection nozzles are clogged or faulty - Clean or change injection nozzles.
Incorrect adjustment of fuel injection pump timing - Set the fuel pump timing correctly.

Engine stalls at idle

Low idle speed setting is not correct - Adjustment required.
Fuel injection pump is not working correctly - Rebuild or replace pump.
Defective fuel injectors - Inspect fuel injectors and change as required.
Improper valve clearance - Adjustment procedure required.

Diesel power loss

Dirty air cleaner - Clean or replace the element.
Dirty or faulty injection nozzles - Service or change injection nozzles.
Incorrect fuel injection pressure - Test fuel injection pressure and adjust it correctly.
Valve out of adjustment - Adjust valve clearance.
Too low idle RPM - Correct low idle settings.
Fuel lines or hoses are clogged - Service fuel hoses and lines.
Cylinder head gasket is worn - Replace the gasket as required.
Piston rings are broken or leaking - Piston rings replacement required.

Engine overheating

Engine has a lack of coolant - Fill radiator to proper level and check components for faults.
Insufficient engine oil - Checking oil level and add if necessary.
Radiator fins are dirty or radiator cap is defective - Replace cap or clean radiator.
Fan belt slipping or worn - The fan belt needs to be replaced.
Diesel engine overloaded - Load reducing required.

Oil pressure is low

Engine oil level low - Add oil as required.
Oil filter is clogged - Replace or clean engine oil filter element.
Oil grade or viscosity is incorrect - Fill up with the correct oil viscosity.
Crankshaft bearing oil clearance is excessive - Change bearings.
Defective oil pump - Repair or change.

Abnormal engine knocking or noise

Lack of engine oil - Check oil level and add oil as required.
Low coolant temperature - Normalize the temperature by warming up the engine.
Timing of fuel injection pump is incorrect - Adjust as recommended.
Incorrect low idle speed adjustment - Adjust low idling as recommended.
Fuel injectors are faulty or clogged - Test and replace fuel injectors if necessary.
Misaligned or defective connecting rod Need to align or replace the connecting rod.
Worn or broken pistons - Install new pistons.

Transmission Troubleshooting
Insufficient transmission fluid pressure

Insufficient transmission fluid - Need to add transmission fluid.
Clogged transmission fluid filter (if equipped) - Clean or change transmission fluid filter.
Relief valve is stuck - Replace valve as required.

Transmission is excessively noisy

Transmission fluid insufficient - Add fluid to the transmission housing.
Transmission fluid is contaminated - Change the fluid.
Improper backlash or worn gears - Change the gears or set backlash properly.
Worn or cracked bearings - Change faulty bearings.
Shift forks are worn or bent - Replace defective shift forks.
Stuck or worn shaft splines - Shaft need to be replaced.

Difficult to shift gears

Gear shift linkage is rusty or worn - Install new shift linkage.
Shift forks are worn or bent - Change the shift forks.
Defective parts in the gearshift mechanism - Replace defective parts.
Malfunction or incorrect clutch adjustment - Clutch adjustment or replacement required.

Transmission oil leaks

Too much oil in transmission - Drain the excess oil.
Damaged gaskets or seals - Replace worn seal or gaskets.

Hydraulic System Troubleshooting
Insufficient hydraulic oil pressure

Hydraulic fluid is insufficient - Fill the system to proper hydraulic fluid level.
Clogged hydraulic fluid filter - Service or replace the hydraulic filter.
Faulty hydraulic pump - Replace or repair hydraulic oil pump.
Hydraulic control valve is out of adjustment - Need to make adjustment.
Hydraulic cylinder not working - Repair or change hydraulic cylinder.
Hydraulic piping is leaking - Inspect the system for leaks and fix it.

Excessive hydraulic system heat

Main relief valve failure - Change relief valve.
Wrong type of hydraulic fluid - Fill up with the correct type of hydraulic fluid.
Hydraulic oil contamination - Change the oil.
Air trapped in hydraulic system - Bleed air from system.

Hitch not lifting or hitch lifts slowly

Heavy load on the hitch - Load needs to be reduced.
Low hydraulic fluid level - Fill the system to proper hydraulic fluid level.
Hydraulic oil filter element is clogged - Hydraulic filter maintenance required.
Hydraulic pump malfunction - Replace or repair hydraulic fluid pump.
Main relief valve is faulty - Install a new relief valve.
Hydraulic control valve block is faulty - Install a new hydraulic valve or repair it.
Faulty hydraulic cylinder - Change or repair hydraulic cylinder.
Disconnected or broken suction line - Change or connect properly.

Hitch won't drop or drops slowly

Not adjusted hydraulic control valve - Need to adjust.
Defective hydraulic cylinder - Repair or replace hydraulic cylinder.
Unadjusted hitch - Adjust as required.
Damaged hitch rock shaft - Install a new shaft.

Hitch lifting or lowering is jerky

Air in hydraulic lines - Bleed hydraulic lines.
Hydraulic fluid is dirty - Hydraulic fluid change required.
Damaged hydraulic pump - Change or repair hydraulic oil pump.
Hydraulic control valve block is damaged - Repair or replace hydraulic valve.
Hydraulic cylinder is defective - Repair or change hydraulic cylinder.

Steering System Troubleshooting
Steering wheel is hard to turn

Improperly assembled or defective steering column - Reassemble or change the steering column.
Air lock in hydraulic steering system - Bleed air from system.
Improper toe-in - Adjust toe-in wheels.
Uneven tire pressure - Inflate the tires properly.
Steering pump failure - Install a new steering pump.
Worn or stuck pump flow control valve - Replace or clean flow control valve.
Not enough steering oil - Check oil level and add steering oil as required.

Excessive free play of steering wheel

Steering column coupling or shaft has maximum wear - Replace defective part.
Defective hydraulic steering pump - Steering pump needs to be repaired or replaced.
Steering linkage parts are loose or worn - Change or repair steering linkage.

Tractor pulls to right or left

Tyre pressure is uneven - Adjust the tyre pressure.
Incorrect toe-in - Adjust toe-in properly.
Loose or worn steering linkage parts - Check and replace as required.
Improperly adjusted or defective front hub bearings - Replace the bearings or adjust it properly.

Electrical Troubleshooting
Battery won’t charge

Corroded or loose wire connections - Tighten or clean connections.
Battery terminal clamps are faulty - Install new terminal clamps.
Battery faulty cell - Change the battery.
Belt is loose or defective - Adjust belt tension or replace belt.

Starter motor cranks slow

Battery capacity is low - Charge the battery.
Battery won’t hold charge - Battery needs service or replacement.
Battery terminals are corroded or wires are disconnected - Connect wiring properly or install new terminals.

Starter is not cranking

Battery is drained or defective - Need to charge or replace the battery.
Wiring is improperly connected or disconnected - Check wiring and connect properly.
Low battery power - Battery needs to be recharged.
Starter motor failing - Starter should be replaced.



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