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| Home / Farm Tractors / Case IH Tractors / Case IH 2120 |
Case IH 2120 Troubleshooting
The
Case IH 2120 is a orchard-vineyard tractor from 2100 series. This model was
manufactured by Carraro built between 1988 and 1993. The Case IH 2120 tractor is
powered by SLH 1000.3A three-cylinder air-cooled diesel engine with a max output
power of 44 Hp (32.6 kW) and 156 Nm (115 lb-ft) of peak torque at 1350 rpm.
The Case IH 2120 is fitted with 2 transmission options: 8x8 partially synchronized transmission or 12x12 partially synchronized transmission. The maximum forward speed - 18.1 mph (29.2 kph), maximum reverse speed - 18.1 mph (29.2 kph).
The open center hydraulic system includes a gear pump with a flow of 15.6 gpm (59 lpm). The hitch lift capacity is 5465 lbs (2480 kg). The 2-wheel drive models are equipped with 5.50x16 or 7.50x16 front tires and 13.6R28 or 14.9R28 rear tires. The 8.25x16 or 7.50x18 front tires and 13.6R28 rear tires are used for tractors with 4-wheel drive. The wheelbase is 78" (1980 mm) for 2WD models and 76.6" (1940 mm) for 4WD models.
| Diesel Engine Troubleshooting |
| Engine difficult to start or won't start |
Air in fuel system - Bleed fuel system.
Dirty fuel filter - Install new filter element.
Fuel injection nozzles fault - Clean or replace injection nozzles.
Water in the fuel system - Change fuel and repair fuel system.
The valve clearance is incorrect - Adjust valve clearance.
Fuel injection pump is broken - Replace or repair injection pump.
| Diesel starts and then shuts off |
Air filter plugged - Clean or change.
Fuel filter element is dirty - Change filter element.
Fuel injection pump is leaking - Repair any leaks.
Fuel injector fault - Clean fuel injectors or change it.
Defective fuel injection pump - Replace injection pump or repair it.
| Engine stops running suddenly |
Coolant temperature is low - Engine is not warmed up to the required temperature.
Fuel filter plugged - Service the filter.
Air in the fuel system - Air bleeding.
Clogged or defective injection nozzles - Change fuel injection nozzles.
Incorrect adjustment of fuel injection pump timing - Check the fuel injection pump timing adjustment.
| Engine stalls while idling |
Incorrectly set low idle speed - Adjust low idle speed.
Fuel injection pump is broken - Repair or install new pump.
Damaged or clogged injectors - Inspect fuel injectors and change as required.
Valve clearance is not correct - Need to adjust valve clearance.
| Engine is not running at maximum power |
Air filter element clogged - Replace air filter element.
Fuel injection nozzles are faulty or clogged - Install a new kit of correctly balanced nozzles.
Insufficient fuel injection pressure - Correct the pressure settings.
Excessive valve clearance - Adjustment procedure required.
Low idle speed setting is not correct - Correct low idle adjustment.
Restricted fuel hoses or lines - Clean fuel system lines and hoses.
Cylinder-head gasket is broken - Change cylinder head gasket.
Leaking or damaged piston rings - Piston rings replacement required.
| Engine overheated |
Engine coolant is insufficient - Top up coolant fluid and check system for leaks.
Lack of engine oil - Check and refill engine oil.
Clogged radiator fins or damaged radiator cap - Clean radiator or install new cap.
Excessive wear of the fan belt - If necessary, replace the belt.
Diesel engine is overloaded - Reduce engine load.
| Oil pressure is insufficient |
Oil level is low - Fill up the engine oil.
Dirty oil filter - Replace or service engine oil filter.
Different type of engine oil - Use oil of correct viscosity.
Incorrect oil clearance in crankshaft bearing - Replace bearings.
Oil pump is defective - Repair or replace.
| Engine knocks or noises |
Engine oil insufficient - Add oil to the engine crankcase.
Engine not warmed up - Warm up to required temperature.
Fuel injection pump timing is wrong - Check the fuel injection pump timing adjustment.
Low idle speed adjustment is incorrect - Adjust low idling as recommended.
Clogged or defective injectors - Clean fuel injectors or change it.
Misaligned or defective connecting rod Connecting rod must be aligned or replaced.
Worn or scored pistons - Replace the pistons.
| Transmission Troubleshooting |
| Transmission fluid pressure is insufficient |
Transmission fluid insufficient - Need to add transmission fluid.
Plugged transmission oil filter (if equipped) - Clean or replace the transmission filter.
Stuck relief valve - Replace relief valve as required.
| Transmission noise |
Transmission oil level is low - Fill up the transmission oil.
Transmission fluid is contaminated - Change the fluid.
Damaged gears or incorrect backlash - Install new gears and adjust backlash properly.
Worn or cracked bearings - Bearings need to be changed.
Shift forks are bent or worn out - Replace the shift forks.
Shaft splines are worn or damaged - Change defective shaft.
| Gear shift is hard |
Gear shift linkage is corroded or worn - Shift linkage need to be replaced.
Shift forks are worn or bent - Change defective shift forks.
Worn gear shifting mechanism - Repair or change worn components if necessary.
Unadjusted or worn clutch - Clutch adjustment or replacement required.
| Transmission fluid leaking |
Transmission fluid level is exceeded - Excess fluid must be drained.
Worn seals or gaskets - Install new seal or gaskets.
| Hydraulic System Troubleshooting |
| Hydraulic fluid pressure is insufficient |
Hydraulic oil level low - Fill the system to proper hydraulic oil level.
Clogged hydraulic oil filter - Clean or change hydraulic filter.
Hydraulic pump failure - Repair or replace hydraulic fluid pump.
Hydraulic control valve is not set properly - Adjust properly.
Damaged hydraulic cylinder - Repair or replace hydraulic cylinder.
Leaks in hydraulic pipes - Check the system and repair leaks.
| Hydraulic system overheating |
Defective main relief valve - Install a new relief valve.
Improper hydraulic oil type - The proper type of hydraulic oil must be used.
Hydraulic oil is contaminated - Fill up with fresh hydraulic oil.
Air in the hydraulic system - Air bleeding.
| Hitch not raising or hitch raises slowly |
Excessive loading on the hitch - Reduce the load is required.
Low hydraulic oil level - Need to add oil.
Hydraulic oil filter element is clogged - Change hydraulic filter element or clean if necessary.
Hydraulic pump is faulty - Change or repair hydraulic oil pump.
Damaged main relief valve - Relief valve need to be replaced.
Hydraulic spool valve is damaged - Repair or change hydraulic valve.
Hydraulic cylinder malfunction - Repair or replace hydraulic cylinder.
Suction line is disconnected or broken - Replace or connect correctly.
| Hitch not lowering or hitch lowers slowly |
Hydraulic control valve is set improperly - The control valve must be set correctly.
Hydraulic cylinder failure - Change or repair hydraulic cylinder.
The hitch has not been adjusted - Adjustment is required.
Worn lift arm shaft - Change the shaft.
| Hitch lower or lift is jerky |
There is air in the hydraulic system - Bleed hydraulic system.
Hydraulic fluid is contaminated - Fill up with new hydraulic fluid.
Hydraulic pump is defective - Replace or repair hydraulic oil pump.
Hydraulic control valve is faulty - Install a new valve or repair it.
Hydraulic cylinder is faulty - Change or repair hydraulic cylinder.
| Steering Troubleshooting |
| Steering is difficult |
Improperly installed or damaged steering column - Install the steering column as required or replace it.
Air lock in the steering system - Bleed air.
Improper toe-in - Check toe-in and correct.
Tyre pressure is uneven - Adjust the tyre pressure.
Faulty steering pump - Install a new hydraulic steering pump.
Faulty or stuck pump flow 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 defective part.
Damaged hydraulic steering pump - Check the hydraulic steering pump and change if necessary.
Steering linkage assembly is worn or loose - Repair or replace steering linkage.
| Front wheels wander to left or right |
Tire pressure is uneven - Adjust the tire pressure.
Improper toe-in - Check toe-in and correct.
Steering linkage components are loose or worn - Check and replace as required.
Improperly adjusted or worn front wheel bearings - Adjust correctly or install new bearings.
| Electrical Troubleshooting |
| Battery will not charge |
Electrical wire connections are corroded or loose - Service or tighten cable connections.
Electrical terminal connectors are faulty - Change terminal connectors.
Battery faulty cell - Battery replacement required.
Belt is defective or loose - Install a new belt or adjust belt tension.
| Starter motor cranks slow |
Battery voltage is low - Battery is drained, charge it.
Battery will not hold charge - Service battery or change it.
Bad terminals or disconnected battery cables - Connect wires correctly or change terminals.
| Starter will not work |
Battery is low or faulty - Recharge or change battery.
Battery cables are disconnected or improperly connected - Inspect cables and connect properly.
Low battery power - Low battery charging, charge as required.
Starter motor is damaged - Starter needs to be replaced.
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| Farm Tractors Technical Specifications |