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New Holland C237 Troubleshooting

The New Holland C237 compact track loader is powered by 207 cubic inches (3.4 L) FPT F5H FL463H four-cylinder turbocharged aftercooled diesel engine with a rated power of 68 hp (51 kW) at 2500 rpm. The New Holland C237 is equipped with a two-speed hydrostatic transmission and 17.7" (450 mm) steel-embedded rubber tracks. The hydraulic system has a pump with fluid flow rate of 24.2 gpm (91.5 lpm). The hydraulic pressure is 3050 psi (210 bar). The compact track loader has a rated operating capacity of 2590 lbs (1180 kg) and tipping load of 7400 lbs (3355 kg). The boom lifting force is 6110 lbs (2775 kg), and bucket breakout force is 7360 lbs (3345 kg).

Engine Troubleshooting

Engine starts hard or doesn't start
There is air in the fuel system - Bleed the system.
Fuel filter element clogging - Service or replace the filter.
Burnt or clogged injection nozzle - Clean or replace injection nozzles.
Water in the fuel system - Change fuel and repair fuel system.
Valve clearance is out of adjustment - Check and adjust as required.
Fuel injection pump is damaged - Repair or install new pump.

Engine starts but then stops
Air filter is plugged - Replace or clean air filter element.
Dirty fuel filter - Replace the filter element.
Fuel injection pump is leaking - Repair any leaks.
Defective or clogged fuel injectors - Replace or clean fuel injectors.
Fuel injection pump malfunctioning - Change or repair the pump.

Engine stalls after running
Engine is cold - Warm up the engine.
Clogged fuel filter - Change filter element.
Air in the fuel system - Air bleeding.
Defective injection nozzle - Clean or replace injection nozzles.
Timing of fuel injection pump is incorrect - Adjust fuel injection pump as required.

Engine stops when idle
Improperly adjusted low idle speed - Adjust the low idle speed.
Fuel injection pump is defective - Rebuild or replace pump.
Damaged or clogged injectors - Clean fuel injectors or change it.
The valve clearance is incorrect - Adjust to proper valve clearance.

Lack of engine power
Air cleaner is dirty - Clean or replace air cleaner element.
Fuel injection nozzles are faulty or clogged - Check injection nozzles and replace if required.
Fuel injection pressure is wrong - Adjust to correct pressure.
Improper valve clearance - Check and adjust as required.
Low idle speed setting is not correct - Adjust the low idle speed.
Dirty fuel hoses or lines - Clean fuel system lines and hoses.
Defective cylinder head gasket - Cylinder-head gasket replacement required.
Piston rings are worn or defective - Replace the piston rings as required.

Engine overheating
Low coolant level - Add coolant and check the components of cooling system.
Insufficient engine oil - Fill the crankcase with engine oil.
Radiator fins are clogged or radiator cap is faulty - Clean radiator or change cap.
Fan belt is worn or faulty - If necessary, replace the belt.
Engine overload - Load reducing required.

Low oil pressure
Oil level is insufficient - Fill the crankcase with oil.
Oil filter is clogged - Service or replace engine oil filter.
Incorrect engine oil Use proper viscosity oil.
Crankshaft bearing oil clearance is excessive - Install new bearings.
Oil pump failure - Check and replace if necessary.

Engine noise or knocking
Low engine oil level - Need to add engine oil.
Engine is cold - Warm up engine as required.
Wrong setting of fuel injection pump timing - Adjust as recommended.
Wrong adjustment of low idle speed - Need to adjust idle speed.
Clogged or defective injectors - Change or clean fuel injectors.
Connecting rod is not aligned or defective - Align or replace connecting rod.
Pistons are scored or worn - Have pistons replaced.

Drive System Troubleshooting

Machine will not move in either direction or one direction
Hydraulic fluid is insufficient - Check and refill the hydraulic fluid.
Track mechanism is jammed or defective - Remedy jamming or repair tracks.
Relief valve malfunction - Repair or install a new relief valve.
Hydraulic filter or suction line is clogged - Service suction line or replace hydraulic filter.
Worn or defective hand or foot controls - Check and repair as required.
Damaged drive pump or motor - Check and repair if required.

Machine does not move straight or moves jerky
Jammed or damaged undercarriage tracks - Repair or fix jamming.
Tracks are sagging or malfunctioning - Replace tracks or adjust track sag with tension.
Track frame is clogged with debris or dirt - Remove debris or clean undercarriage track frame.

Low power
Clogged hydraulic oil filter - Check, clean, or replace as required.
Relief valve is defective or opened - Change or close relief valve.
Worn or faulty transmission components - Check and replace defective components.
Defective input drive shaft - Repair or replace drive shaft.
Air in the hydraulic system - Need to bleed air.

Drive system overheating
Hydraulic fluid level low - Fill the system to proper hydraulic fluid level.
Hydraulic fluid filter is plugged - Change or clean hydraulic filter.
Defective relief valve - Change or repair relief valve.
Hydraulic motor or drive pump is worn - Inspect and change as required.
Dirty oil cooler - Cooling fins should be cleaned.
Transmission overloading - Reduce the load.

Drive system makes excessive noise
Oil viscosity is too heavy - Use oil of proper viscosity.
There is air in the hydraulic system - Need to bleed air.
Defective drive pump or hydraulic motor - Check and repair if required.
Worn or defective mechanical components of drive system - Inspect drive system and replace faulty parts.

Hydraulics Troubleshooting

Hydraulic system has overheating
Hydraulic pressure is not adjusted correctly - Adjust pressure as required.
Main relief valve is defective or unadjusted - Adjust or change relief valve.
Hydraulic oil contamination - Change hydraulic oil.
Not enough hydraulic oil in the system - Check oil level and add hydraulic oil as required.
Faulty hydraulic oil pump - Change or repair hydraulic pump if required.

Boom cannot be lowered or raised
Lift controls are faulty - Change or repair.
Damaged hydraulic oil pump - Change or repair hydraulic pump if required.
Faulty hydraulic control valve - Repair or change the valve.
Hydraulic cylinder is broken - Repair or change hydraulic cylinder.
Hydraulic oil is insufficient - Checking hydraulic oil level and add if necessary.

Bucket does not function
Bucket controls failure - Replace or repair.
Hydraulic pump malfunction - Repair or replace pump if necessary.
Faulty hydraulic control valve - Install a new hydraulic valve or repair it.
Bucket cylinder failure - Change or repair cylinder.
Hydraulic fluid level low - Fill up the hydraulic fluid.

Boom or bucket runs slowly
Hydraulic pump is faulty - Test the pump flow rate and change pump if required.
Hydraulic cylinder leaking - Cylinder seals need to be replaced.
Hydraulic oil is insufficient - Need to add oil.
Hydraulic control valve is not set properly or defective - Repair or adjust properly.
Hydraulic pressure is low - Correct adjustment is required.

Bucket or boom jerks when working
Air in hydraulic system - Need to bleed air.
Hydraulic oil filter clogging - Replace or clean the filter.
Dirty hydraulic oil - Change hydraulic oil.
Scratched cylinder rod or tube - Replace defective component.

Hydraulic pump makes excessive noise
Hydraulic leakage or low oil level - Correct hydraulic leaks or top up oil as needed.
Hydraulic filter clogging - Service or change hydraulic filter.
Suction line clogging - Clean suction line as required.
Pump sucks air - Bleed air.
Pump parts are worn out - Rebuild or change hydraulic pump.

Electrical Troubleshooting

Battery does not charge
Loose or corroded electrical wiring connections - Tighten or service cable connections.
Battery terminal clamps are faulty - Change terminal clamps.
Battery bad cell - Change the battery.
Loose or defective belt - Install a new belt or adjust belt tension.

Starter motor cranks slow
Low battery output voltage - Battery is drained, recharge it.
Battery does not hold charge - Service or change the battery.
Battery cables are disconnected or terminals are faulty - Connect wires correctly or change terminals.

Starter motor is not working
Battery is low or faulty - Recharge or change battery.
Battery wires are disconnected or incorrectly connected - Check wires and connect correctly.
Battery power is low - Battery needs to be recharged.
Damaged starter motor - Starter should be changed.