Case 60XT Skid Steer Troubleshooting

The Case 60XT skid steer loader driveline system components: a 239 cu.in (3.9L) Case 4-390 4-cycle 4-cylinder direct injection diesel engine with a rated power of 75 hp (55.9 kW) and hydrostatic transmission. The hydraulic system has a pump with a rated capacity of 21 gal/min (79.4 l/min). The system relief pressure is 3000 psi (207 bar). The Case 60XT is equipped with a radial-lift boom, 100HS continuous roller chains, and 12x16.5 or 33-15.5x16.5 tires. The skid steer loader has a boom lifting force of 4430 lbs (2015 kg) and bucket breakout force of 5055 lbs (2295 kg). The rated operating capacity is 1800 lbs (817 kg), and tipping load is 3600 lbs (1635 kg).

Engine Troubleshooting

Engine starts up hard or won't start

Air in the fuel system - Air bleeding.
Fuel filter element is dirty - Install new filter element.
Damaged or dirty injection nozzles - Test injection nozzles and change if necessary.
Water or dirt in fuel system - Drain, flush, and service the system.
Valve clearance is out of adjustment - Correct valve clearance.
Fuel injection pump malfunction - Repair or install new pump.

Diesel starts and stops

Air cleaner is dirty - Clean or change.
Dirty fuel filter - Clean or replace the filter.
Problems with fuel injection pump tightness - Inspect fuel injection pump for leaks.
Fuel injectors are dirty or defective - Replace or clean fuel injectors.
Fuel injection pump failure - Rebuild or change fuel pump.

Engine stalls during operation

Engine is not warmed up to required temperature - Normalize the engine temperature.
Fuel filter element is clogged - Change the filter element.
Air trapped in fuel system - Bleed air.
Defective or clogged injection nozzle - Check and replace nozzles if required.
Wrong setting of fuel injection pump timing - Set up as recommended.

Engine stalls at low idle speed

Incorrectly adjusted low idle speed - Test and adjust.
Fuel injection pump is damaged - Change or repair the pump.
Fuel injectors are faulty or clogged - Test and replace fuel injectors if necessary.
Valve clearance is out of adjustment - Check and adjust.

Engine power loss

Air filter is dirty - Clean or change.
Fuel injection nozzles fault - Install a new kit of correctly balanced nozzles.
Fuel injection pressure is wrong - Adjust pressure to proper level.
Valve clearance is wrong - Adjust valve clearance according to specifications.
Incorrectly adjusted low idle speed - Adjust the low idle speed.
Fuel lines or hoses are dirty - Clean fuel lines and hoses.
Cylinder-head gasket is broken - Change cylinder head gasket.
Piston rings are worn or damaged - Change piston rings.

Engine overheating

Engine has a lack of coolant - Add coolant and check the components of cooling system.
Engine oil level is insufficient - Fill the crankcase with engine oil.
Radiator core is clogged or radiator cap is leaking - Replace cap or clean radiator.
Damaged or worn fan belt - Replace as required.
Diesel engine overloaded - Reduce engine load.

Oil pressure too low

Low crankcase oil level - Add oil as required.
Oil filter element is dirty - Clean or change engine oil filter.
Oil grade or viscosity is incorrect - Fill up with the proper oil viscosity.
Crankshaft bearing has excessive oil clearance - Bearings need to be reinstalled.
Oil pump is worn or damaged - Repair or replace.

Engine knocking or noise

Lack of engine oil - Checking oil level and add if necessary.
Engine is not warmed up to required temperature - Warm up to required temperature.
Improper setting of fuel injection pump timing - Adjust the pump as required.
Incorrectly set low idle speed - Adjustment required.
Damaged or clogged injectors - Test and replace fuel injectors if necessary.
Connecting rod is misaligned or worn - Need to align or replace the connecting rod.
Pistons are broken or worn - Install new pistons.

Drive System Troubleshooting

Machine is not moving forward or backward

Hydraulic oil level is low - Check and refill the hydraulic oil.
Worn drive chain - Check drive chain and change faulty parts.
Worn input drive shaft - Change or repair.
Relief valve is damaged or worn - Repair or replace relief valve.
Dirty suction line or hydraulic filter - Replace hydraulic filter or clean suction line.
Hand or foot controls failure - Check and repair as required.
Drive pump or motor is damaged - Replace or repair faulty component.

Lack of power

Clogged hydraulic oil filter - Check, clean, or replace as required.
Relief valve is damaged or open - Replace or close relief valve.
Transmission parts are worn or defective - Check and replace faulty components.
Defective input drive shaft - Change or repair faulty drive shaft.
Air trapped in hydraulic system - Bleed air from system.

Drive system keeps overheating

Low hydraulic fluid level - Checking hydraulic fluid level and add if necessary.
Dirty hydraulic fluid filter - Change or service hydraulic filter.
Relief valve defective or worn - Change or repair defective relief valve.
Hydraulic motor or drive pump is defective - Change or repair faulty component.
Clogged hydraulic oil cooler - Cooling fins need to be cleaned.
Drive system is overloaded - Reduce loading.

Excessive noise

Oil viscosity is too heavy - Use proper oil viscosity.
Air leaks in hydraulic system - Bleed air from hydraulic system.
Worn hydraulic motor or drive pump - Repair or change faulty component.
Worn or damaged mechanical components of drive system - Inspect the components for worn or defect and repair as required.

Hydraulics Troubleshooting

Hydraulic system is overheated

Incorrect hydraulic pressure setting - Adjust it correctly.
Defective or misadjusted main relief valve - Adjust relief valve or change if required.
Hydraulic oil is dirty - Hydraulic oil change required.
Hydraulic oil level is insufficient - Fill the hydraulic system with oil.
Defective hydraulic pump - Replace or repair pump if necessary.

Lift arm fails to drop or lift

Faulty lift controls - Check and repair as required.
Defective hydraulic pump - Repair or replace pump if necessary.
Hydraulic control valve malfunction - Repair or replace the valve.
Defective hydraulic cylinder - Repair or install a new lift cylinder.
Hydraulic fluid level low - Fill the system to proper hydraulic fluid level.

Bucket does not function

Damaged bucket controls - Replace or repair.
Hydraulic pump is broken - Repair or install new hydraulic pump.
Faulty hydraulic control valve - Repair or change hydraulic valve.
Damaged bucket cylinder - Replace or repair cylinder.
Hydraulic oil is insufficient - Check and refill the hydraulic oil.

Slow bucket or lift arm operation

Hydraulic pump is faulty - Flow-rate pump and change pump if necessary.
Hydraulic cylinder leaking - Repair leak by replacing the seals.
Insufficient hydraulic oil - Need to add oil.
Worn or unadjusted hydraulic control valve - Repair or set properly.
Hydraulic system loosing pressure - Correct setting is required.

Lift arm or bucket jerks when working

Air in hydraulic system - Bleed air from hydraulic system.
Hydraulic oil filter clogging - Clean or change the filter.
Dirty hydraulic fluid - Hydraulic fluid change required.
Scored cylinder tube or rod - Replace damaged component.

Hydraulic pump makes excessive noise

Hydraulic system leaking or not enough oil - Correct hydraulic leaks or top up oil as needed.
Clogged hydraulic filter - Clean or change the filter.
Suction line is dirty - Need to clean the suction line.
Pump sucks air - Air bleeding is required.
Worn pump components - Rebuild or change hydraulic pump.

Electrical Troubleshooting

Battery does not charge

Electrical cable connections are loose or corroded - Tighten or clean electrical wiring connections.
Battery terminal connectors are defective - Terminal connectors should be replaced.
Defective battery - Battery change required.
Belt is loose or defective - Adjust belt tension or change the belt.

Starter turns slowly

Low battery output voltage - Battery is drained, recharge it.
Battery will not hold charge - Service charging system or replace battery.
Terminals are faulty or battery cables are disconnected - Check cables and clean or change terminals.

Starter does not work

Battery is low or faulty - Recharge or replace battery.
Disconnected or improperly connected wiring harness - Inspect battery wiring harness and connect as required.
Battery capacity is low - Low battery charging, charge as required.
Starter motor is damaged - Repair or change starter.