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Case IH 3294 Troubleshooting

The Case IH 3294 is a 4WD row-crop tractor. This model was manufactured from 1985 to 1986. The components of Case IH 3294 powerline system: a 504 cubic inches (8.3 L) Case 504BD six-cylinder turbocharged liquid-cooled diesel engine with a rated power of 197 hp (147 kW), and power shift transmission with 12 forward and 3 reverse gears.

The maximum travel speed (forward/reverse): 18.1 mph (29.1 km/h) and 8.2 mph (13 km/h). The closed center hydraulic system includes a piston pump with rated fluid flow of 23 gal/min (87.1 l/min).

The hydraulic pressure is 155 bar (2250 psi). The Case IH 3294 is equipped with a hydrostatic power steering system, wet disc brakes, 11.00x16 or 14Lx16 front tyres, and 18.4x38 or 23.1x34 rear tyres. The wheelbase is 104 inches (2640 mm).

Diesel Engine Troubleshooting
Engine starts hard or won't start

Air in fuel tank - Bleed fuel tank.
Fuel filter plugged - Change filter element.
Defective injection nozzle - Install a new kit of correctly balanced nozzles.
Dirt or water in fuel system - Drain water or flush dirt from the system.
Incorrect valve clearance - Correct valve clearance needs to be set.
Fuel injection pump malfunctioning - Repair or install new pump.

Engine starts but immediately stalls

Clogged air cleaner - Service or replace the air filter.
Fuel filter element clogging - Service or replace the filter.
Fuel injection pump is leaking - Repair any leaks.
Dirty or defective injectors - Clean fuel injectors or change it.
Fuel injection pump damage - Replace or repair injection pump.

Engine stops unexpectedly during operation

Engine is not warmed up to the required temperature - Engine is not warmed up to the required temperature.
Fuel filter element is clogged - Change filter element.
Air trapped in fuel system - Bleed air.
Fuel injection nozzles are damaged - Clean or replace injection nozzles.
Fuel injection pump timing is not adjusted - Adjust fuel injection pump as required.

Engine stalls at idle

Incorrectly adjusted low idle speed - Adjust the low idle speed.
Fuel injection pump is damaged - Install a new pump or rebuild.
Defective fuel injectors - Change or clean fuel injectors.
The valve clearance is not adjusted - Need to adjust valve clearance.

Diesel engine loses power

Air filter element clogged - Clean air cleaner element.
Fuel injection nozzles are dirty or defective - Install a new kit of correctly balanced nozzles.
Fuel injection pressure is wrong - Adjust pressure to proper level.
Valve clearance is out of adjustment - Have it adjusted.
Low idle speed set incorrectly - Adjust low idle speed.
Fuel lines or hoses clogging - Clean fuel system hoses and lines.
Cylinder-head gasket is broken - Replace the gasket as required.
Piston rings are worn or damaged - Install new piston rings.

Engine overheating

Lack of coolant in cooling system - Fill radiator to proper level and check components for faults.
Low engine oil level - Check and refill engine oil.
Clogged radiator core or damaged radiator cap - Clean radiator or change cap.
Excessive wear of the fan belt - The fan belt needs to be replaced.
Engine is overloaded - Load reducing required.

Oil pressure is low

Not enough oil in the engine - Checking oil level and add if necessary.
Dirty oil filter - Replace or service engine oil filter.
Wrong oil viscosity - Use oil of proper viscosity.
Crankshaft bearing oil clearance is incorrect - Install new bearings.
Worn oil pump - Repair or replace.

Engine noises or knocks

Low engine oil level - Add oil to the engine crankcase.
Engine is not preheated - Warm up the engine.
Fuel injection pump timing is not adjusted - Set the fuel pump timing correctly.
Low idle speed adjustment is incorrect - Correct the settings.
Clogged or defective injectors - Clean fuel injectors or change it.
Connecting rod is worn or misaligned - Connecting rod needs to be replaced or aligned.
Pistons are worn or scored - Replace the pistons as required.

Transmission Troubleshooting
Insufficient transmission oil pressure

Transmission fluid level is low - Fill the transmission housing to proper fluid level.
Transmission oil filter element clogging (if equipped) - Service or replace the transmission oil filter.
Relief valve malfunction - Replace valve as required.

Transmission noises

Insufficient transmission oil - Fill the transmission housing with oil.
Transmission oil is dirty - Change the oil.
Defective gears or improper backlash - Change the gears or set backlash properly.
Bearings are broken or worn - Change faulty bearings.
Damaged or worn gear shift forks - Change defective shift forks.
Shaft splines are damaged or worn - Shaft need to be replaced.

Difficulty shifting gears

Stuck or worn gear shift linkage - Shift linkage need to be replaced.
Worn or bent gear shift forks - Shift forks need to be replaced.
Gear shifting mechanism is defective - Defective parts must be replaced.
Clutch is worn or not adjusted - Replace or adjust clutch.

Transmission oil leaking

High transmission fluid level - Drain the excess fluid.
Damaged seals or gaskets - Install new components.

Hydraulics Troubleshooting
Hydraulic oil pressure is low

Low hydraulic fluid level - Fill up the hydraulic fluid.
Dirty hydraulic fluid filter - Service the hydraulic filter or change if required.
Hydraulic pump malfunction - Repair or replace hydraulic fluid pump.
Hydraulic control valve block is not set properly - Use the proper setting.
Defective hydraulic cylinder - Repair or change hydraulic cylinder.
Hydraulic piping is leaking - Find leaks in the system and fix it.

Hydraulic system is overheated

Damaged main relief valve - Relief valve must be changed.
Improper hydraulic oil type - The proper type of hydraulic oil must be used.
Hydraulic fluid is contaminated - Fill up with new hydraulic fluid.
Air in hydraulic lines - Bleed hydraulic lines.

3-point hitch cannot be raised or raising is too slowly

Excessive load on hitch - Reduce loading.
Insufficient hydraulic oil - Check and refill the hydraulic oil.
Dirty hydraulic oil filter element - Service or replace the hydraulic filter.
Hydraulic pump failure - Change or repair hydraulic oil pump.
Faulty main relief valve - Relief valve need to be replaced.
Hydraulic spool valve is defective - Repair or change hydraulic valve.
Hydraulic cylinder malfunction - Change or repair hydraulic cylinder.
Loose or broken suction line - Tighten the pipe or replace it.

Hitch not lowering or hitch lowers slowly

Hydraulic control valve block is out of adjustment - Control valve needs to be adjusted.
Faulty hydraulic cylinder - Replace or repair hydraulic cylinder.
The hitch has not been adjusted - Adjust the 3-point hitch.
Hitch rock shaft is damaged - Change the shaft.

Hitch lift or drop is not smoothly

Air in hydraulic lines - Bleed hydraulic lines.
Hydraulic fluid contamination - Change hydraulic fluid.
Damaged hydraulic pump - Repair or replace hydraulic oil pump.
Faulty hydraulic spool valve - Repair or replace the valve.
Hydraulic cylinder failure - Replace or repair hydraulic cylinder.

Steering System Troubleshooting
Steering wheel turns hard

Improperly assembled or defective steering column - Reassemble or change the steering column.
Air in the hydraulic steering system - Need to bleed air.
Not adjusted toe-in - Check and adjust toe-in.
Tire pressure is uneven - Adjust the tire pressure.
Hydraulic steering pump is defective - Steering pump needs to be repaired or replaced.
Steering pump control valve is faulty or stuck - Clean or install new control valve.
Lack of steering fluid - Need to add steering oil.

Steering wheel free play is excessive

Steering column coupling or shaft has maximum wear - Change defective part.
Steering pump failure - Steering pump needs to be replaced or repaired.
Steering linkage components are loose or worn - Inspect and change as required.

Tractor is pulling to left or right

Tire pressure is uneven - Adjust the tire pressure.
Not adjusted toe-in - Check toe-in and correct.
Steering linkage components are loose or worn - Replace or repair steering linkage.
Improperly adjusted or defective front wheel bearings - Install new bearings or adjust it correctly.

Electrical Troubleshooting
Battery will not charge

Electrical cable connections are loose or corroded - Service or tighten connections.
Battery terminal clamps are faulty - Change terminal clamps.
Battery faulty cell - Use a new battery.
Belt is damaged or loose - Need to adjust belt tension or replace belt.

Starter turns slow

Low battery voltage - Battery needs to be recharged.
Battery won’t hold charge - Service battery or replace it.
Disconnected cables or faulty battery terminals - Check cable connections and replace or service terminals.

Starter will not work

Battery is discharged or defective - Charge or replace the battery.
Wiring harness is disconnected or improperly connected - Check wiring harness and connect as required.
Low battery output - Battery is drained, recharge it.
Faulty starter motor - Change or repair starter.



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