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| Home / Farm Tractors / Case IH Tractors / Case IH 7250 Magnum |
Case IH 7250 Magnum Troubleshooting
The
Case IH 7250 is a 4WD (4x4) row-crop tractor from Magnum 7200-series. This model
was manufactured between 1994 and 1996. The components of Case IH Magnum 7250
powerline system: a 505 cubic inches (8.3 L) Case-International 6TA-830
6-cylinder turbocharged intercooled diesel engine with a rated power of 262.3 hp
(194.2 kW), and full powershift transmission with 18 forward and 4 reverse gears
or creeper transmission with 24 forward and 6 reverse gears.
The maximum travel speed (forward/reverse): 20.4 mph (32.8 km/h) and 7.4 mph (11.9 km/h). The closed center (PFC) hydraulic system includes a piston pump with rated fluid flow of 22 gal/min (83.3 l/min). The hydraulic pressure is 160 bar (2300 psi). The Case IH Magnum 7250 is equipped with a hydrostatic power steering, differential hydraulic wet disc brakes, 16.9x28 front tyres, and 20.8R38 rear tyres. The wheelbase is 118.3 inches (3000 mm).
| Diesel Engine Troubleshooting |
| Engine difficult to start or will not start |
Air in the fuel lines - Bleed the fuel lines.
Clogged fuel filter - Clean or change the filter.
Defective or clogged injection nozzle - Check and replace nozzles if required.
Water or dirt in fuel system - Drain, flush, and service the system.
The valve clearance is not adjusted - Adjustment procedure required.
Damaged fuel injection pump - Replace or rebuild injection pump.
| Diesel starts but immediately stops |
Intake air restriction - Service or replace the air filter.
Fuel filter plugging - Change the filter element.
Poor fuel injection pump tightness - Look for any leaks of fuel pump Tighten it fast.
Clogged or defective injectors - Inspect fuel injectors and change as required.
Fuel injection pump is defective - Replace injection pump or repair it.
| Diesel shuts off while driving |
Low coolant temperature - Engine is not warmed up to the required temperature.
Fuel filter plugged - Service or replace the filter.
Air in the fuel system - Air bleeding.
Clogged or defective injection nozzles - Test injection nozzles and change if necessary.
Improper setting of fuel injection pump timing - Use the correct fuel injection pump timing adjustment.
| Engine shuts off while idling |
Low idle speed setting is not correct - Normalize low idle speed.
Defective fuel injection pump - Replace or rebuild injection pump.
Fuel injector fault - Clean fuel injectors or change it.
Valve out of adjustment - Adjust valve clearance according to specifications.
| Engine power is insufficient |
Clogged air filter - Service air cleaner.
Fuel injection nozzles are damaged - If necessary, replace with a new nozzle.
Improper fuel injection pressure - Adjust to proper pressure.
The valve clearance is incorrect - Need to adjust valve clearance.
Incorrectly adjusted low idle speed - Adjust the low idle speed.
Dirty fuel hoses or lines - Clean fuel system hoses and lines.
Defective cylinder head gasket - Install new cylinder head gasket.
Damaged or leaking piston rings - Piston rings replacement required.
| Engine is overheated |
Not enough coolant - Add coolant and check the components of cooling system.
Not enough engine oil - Need to add engine oil.
Defective radiator cap or clogged radiator fins - Clean radiator or replace cap.
Fan belt is broken or worn - Change as required.
Diesel engine is overloaded - Reduce engine load.
| Oil pressure is insufficient |
Engine oil level low - Check oil level and add oil as required.
Oil filter is dirty - Change or service engine oil filter.
Wrong oil viscosity - Use proper viscosity oil.
Incorrect crankshaft bearing oil clearance - Bearings need to be reinstalled.
Worn oil pump - Inspect and change as required.
| Engine knocking or noise |
Not enough engine oil - Fill up the engine oil.
Engine is cold - Warm up the engine.
Fuel injection pump timing is wrong - Adjust the pump as required.
Incorrectly adjusted low idle speed - Correct low idle adjustment.
Defective fuel injectors - Clean or replace fuel injectors.
Connecting rod is defective or misaligned - Need to align or replace the connecting rod.
Pistons are broken or worn - Pistons need to be replaced.
| Transmission Troubleshooting |
| Low transmission fluid pressure |
Insufficient transmission oil - Fill the transmission housing to proper oil level.
Transmission oil filter is clogged (if fitted) - Service or replace the transmission oil filter.
Defective relief valve - Install a new valve.
| Transmission is excessively noisy |
Insufficient transmission fluid - Need to add transmission fluid.
Transmission oil contamination - Fill up with fresh transmission oil.
Improper backlash or worn gears - Adjust backlash properly or replace the gears.
Worn or cracked bearings - Faulty bearings should be replaced.
Worn or bent gear shift forks - Shift forks need to be replaced.
Shaft splines are stuck or worn out - Change the shaft.
| Difficulty shifting gears |
Gear shift linkage is rusty or worn - Change or lubricate shift linkage.
Worn or bent shift forks - Replace defective shift forks.
Gear shifting mechanism is defective - Defective parts must be replaced.
Unadjusted or worn clutch - Adjust or replace the clutch.
| Transmission fluid leaks |
High transmission fluid level - Drain the excess fluid.
Broken seals or gaskets - Install new gaskets or seal.
| Hydraulic System Troubleshooting |
| Hydraulic fluid pressure is low |
Hydraulic oil is insufficient - Need to add oil.
Clogged hydraulic fluid filter - Service the hydraulic filter or change if required.
Faulty hydraulic pump - Repair or replace hydraulic fluid pump.
Not adjusted hydraulic control valve - Need to adjust.
Damaged hydraulic cylinder - Change or repair hydraulic cylinder.
Leaks in hydraulic lines - Inspect the system for leaks and fix it.
| Hydraulic system overheated |
Main relief valve is damaged - Change relief valve.
Wrong type of hydraulic oil - Pour the correct type of hydraulic oil.
Hydraulic fluid is dirty - Hydraulic fluid change required.
Air in hydraulic lines - Bleed hydraulic lines.
| Hitch not lifting or hitch lifts slowly |
Excessive loading on the hitch - The load should be reduced.
Low hydraulic oil level - Need to add oil.
Clogged hydraulic oil filter - Hydraulic filter maintenance required.
Hydraulic pump is faulty - Replace or repair hydraulic fluid pump.
Main relief valve is defective - Relief valve replacement required.
Hydraulic control valve block is damaged - Install a new valve or repair it.
Defective hydraulic cylinder - Replace or repair hydraulic cylinder.
Loose or broken suction pipe - Retighten or replace pipe.
| 3-point hitch can't drop or drops too slowly |
Hydraulic control valve block is out of adjustment - Control valve needs to be adjusted.
Hydraulic cylinder failure - Repair or install a new hydraulic cylinder.
3-point hitch is out of adjustment - The 3-point hitch must be adjusted.
Lift arm shaft is damaged - Install a new shaft.
| Hitch lift or drop is not smoothly |
Air in hydraulic lines - Bleed hydraulic lines.
Hydraulic oil is contaminated - Fill up with fresh hydraulic oil.
Hydraulic pump is faulty - Change or repair hydraulic fluid pump.
Faulty hydraulic spool valve - Change or repair hydraulic valve.
Hydraulic cylinder not working - Replace or repair hydraulic cylinder.
| Steering System Troubleshooting |
| Steering wheel is very heavy to turn |
Incorrectly installed or worn steering column - Install the steering column correctly or replace it.
Air lock in hydraulic steering system - Bleed the system of air.
Improper toe-in - Check toe-in and correct.
Tire pressure uneven - Inflate the tires correctly.
Worn steering pump - Install a new steering pump.
Steering pump control valve is faulty or stuck - Replace or service control valve.
Insufficient steering fluid - Fill up the steering fluid.
| Excessive steering wheel play |
Steering column coupling or shaft has maximum wear - Change defective component.
Steering pump stopped working - Replace or repair steering pump.
Steering linkage components are loose or worn - Check and replace as required.
| Tractor is pulling to left or right |
Front tires are worn unevenly - Install new tires.
Incorrect toe-in - Check toe-in and correct.
Steering linkage components are loose or worn - Change or repair steering linkage.
Defective or improperly adjusted front wheel bearings - Adjust correctly or replace bearings.
| Electrical Troubleshooting |
| Battery cannot be charged |
Corroded or loose cable connections - Service or tighten connections.
Defective battery terminal connectors - Terminal connectors need to be changed.
Battery dead cell - Battery replacement required.
Loose or defective belt - Belt needs to be adjusted or replaced.
| Starter turning slow |
Battery capacity is low - Battery is drained, recharge it.
Battery drains quickly - Service battery or replace it.
Bad terminals or disconnected battery cables - Connect wires correctly or change terminals.
| Starter does not work |
Battery is discharged or defective - Charge or replace the battery.
Wire harness is disconnected or incorrectly connected - Check wire harness and connect as required.
Battery power is low - Battery is drained, recharge it.
Starter motor is damaged - Starter should be changed.
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| Farm Tractors Technical Specifications |