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Gehl 3610 Troubleshooting

The Gehl 3610 skid steer loader is powered by 86.6 cu.in (1.4L) Isuzu 3KR1/QT-35 vertical inline 3-cylinder naturally aspirated liquid-cooled diesel engine with a rated power of 30 hp (22.4 kW) at 2700 rpm. The Gehl 3610 is equipped with a radial-lift boom, one-speed hydrostatic transmission, 60H drive chains, and 5.70x15 or 27x8.50x15 tires. The hydraulic system has a pump with fluid flow rate of 11 gpm (42 lpm). The hydraulic pressure is 2200 psi (152 bar). The skid steer has a rated operating capacity of 925 lbs (418 kg) and tipping load of 1850 lbs (835 kg). The lift height is 102 inches (2590 mm) to hinge pin, and dump reach at full height is 15.5 inches (395 mm).

Engine Troubleshooting

Engine hard to start or won't start
Air in the fuel pipes - Bleed the fuel pipes.
Fuel filter element is clogged - Service the filter.
Burnt or defective injection nozzle - Change fuel injection nozzles.
Water or dirt in fuel system - Drain, flush, and service the system.
Valve clearance is out of adjustment - Adjust valve clearance according to specifications.
Fuel injection pump is defective - Change or repair the pump.

Engine starts and stalls suddenly
Clogged air cleaner - Clean or change cleaner.
Clogged fuel filter - Change or clean the filter element.
Problems with fuel injection pump tightness - Inspect fuel injection pump for leaks.
Dirty or defective injectors - Inspect fuel injectors and change as required.
Fuel injection pump is broken - Rebuild or change fuel pump.

Engine stops suddenly during operation
Engine is not preheated - Engine is not warmed up to the required temperature.
Fuel filter plugging - Change the filter element.
Air in fuel tank - Bleed fuel tank.
Clogged injection nozzle - Install a new kit of correctly balanced nozzles.
Incorrect adjustment of fuel injection pump timing - Adjust the pump as required.

Engine stops while idling
Incorrectly set low idle speed - Correct low idle settings.
Fuel injection pump malfunctioning - Change or repair the pump.
Dirty or defective injectors - Replace or clean fuel injectors.
Valve clearance is wrong - Check and adjust.

Low engine power
Air cleaner is clogged - Service or replace air cleaner.
Dirty or faulty injection nozzles - Clean or replace injection nozzles.
Fuel injection pressure is wrong - Adjust to proper pressure.
Valve clearance is not correct - Adjustment procedure required.
Incorrectly set low idle speed - Test and adjust.
Fuel hoses or lines clogging - Clean fuel system hoses and lines.
Cylinder-head gasket is leaking - Replace cylinder head gasket.
Piston rings are damaged or leaking - Install new piston rings.

Engine overheated
Not enough coolant - Add coolant fluid to cooling system and also check it for leaks.
Not enough engine oil - Fill up the oil to required level.
Radiator core is dirty or radiator cap is damaged - Change cap or clean radiator.
Excessive wear of the fan belt - Replace as required.
Diesel engine overloaded - Reduce engine load.

Insufficient oil pressure
Low crankcase oil level - Add oil to the engine crankcase.
Oil filter clogged - Change or service engine oil filter.
Oil grade or viscosity is wrong - Use oil of correct viscosity.
Incorrect oil clearance in crankshaft bearing - Bearing replacement required.
Oil pump is worn or damaged - Inspect and change as required.

Engine knocks or noises
Insufficient engine oil - Check and refill engine oil.
Engine is not warmed up to the required temperature - Warm up to required temperature.
Fuel injection pump timing is wrong - Set up as recommended.
Low idle speed set incorrectly - Need to adjust idle speed.
Clogged or defective injectors - Clean or replace fuel injectors.
Connecting rod is misaligned or defective - Connecting rod needs to be aligned or changed.
Pistons are worn or scored - Replace the pistons.

Drive System Troubleshooting

Drive system does not work in either direction
Hydraulic fluid is insufficient - Add fluid as required.
Drive chain is worn - Check drive chain and change faulty components.
Defective relief valve - Relief valve need to be replaced or repair.
Dirty suction line or hydraulic filter - Clean suction line or replace hydraulic filter.
Defective or worn foot or hand controls - Repair or change.
Defective drive pump or motor - Repair or replace faulty component.

Reduced power
Dirty hydraulic oil filter - Change or service hydraulic filter.
Worn or open relief valve - Close or replace relief valve.
Worn or defective transmission parts - Check and replace faulty components.
Defective input drive shaft - Replace drive shaft.
Air leaks in hydraulic system - Air bleeding is required.

Drive system overheats
Hydraulic fluid level low - Fill up the hydraulic fluid.
Plugged hydraulic fluid filter - Check, clean, or replace as required.
Worn or defective relief valve - Service or change relief valve.
Hydraulic motor or drive pump failure - Repair or replace faulty component.
Clogged hydraulic oil cooler - Cooling fins should be cleaned.
Transmission overloading - Load needs to be reduced.

Drive system is noisy
Oil viscosity is wrong - Use proper oil viscosity.
Air in the hydraulic system - Air bleeding is required.
Worn hydraulic motor or drive pump - Replace or repair faulty component.
Worn or defective mechanical components of drive system - Check the components for defect or damage and change if necessary.

Hydraulics Troubleshooting

Hydraulic system has overheating
Hydraulic pressure incorrectly adjusted - Set pressure correctly.
Main relief valve malfunction or improper adjustment - Replace or set up the relief valve.
Hydraulic fluid is dirty - Hydraulic fluid change required.
Hydraulic fluid level is insufficient - Add fluid to the hydraulic system.
Hydraulic pump is defective - Replace or repair pump if necessary.

Lift arm can't drop or lift
Lift controls malfunction - Repair or change.
Hydraulic pump not working - Repair or replace pump if necessary.
Faulty hydraulic control valve - Repair or change hydraulic valve.
Hydraulic cylinder failure - Repair or change hydraulic cylinder.
Insufficient hydraulic fluid - Checking hydraulic fluid level and add if necessary.

Bucket won't move
Bucket tilt controls are damaged - Check and repair as required.
Defective hydraulic pump - Install new pump or repair it.
Faulty hydraulic control valve - Install a new valve or repair it.
Bucket cylinder failure - Repair or replace cylinder.
Low hydraulic fluid level - Fill up the hydraulic fluid.

Boom or bucket is working slowly
Hydraulic pump is worn - Check pump performance and change it if necessary.
Hydraulic cylinder oil leakage - Correct leakage by changing the seals.
Hydraulic oil is insufficient - Need to add oil.
Hydraulic control valve is defective or set improper - Set properly or repair.
Low hydraulic pressure - Adjust pressure correctly.

Lift arm or bucket jerks when working
Hydraulic system is leaking air - Bleed air from hydraulic system.
Dirty hydraulic oil filter - Service or replace the hydraulic filter.
Hydraulic fluid is contaminated - The fluid must be changed.
Cylinder tube or rod is scored - Replace failed component.

Excessive hydraulic pump noise
Hydraulic leakage or low oil level - Refill hydraulic oil or repair leaks in system.
Dirty hydraulic filter - Replace or clean the filter.
Clogged suction line - Suction line must be serviced.
Air in hydraulic pump - Remove air from hydraulics.
Pump components are worn out - Replace or rebuild the pump.

Electrical Troubleshooting

Battery does not charge
Electrical cable connections are loose or corroded - Tighten or service connections.
Faulty battery terminal clamps - Replace terminal clamps.
Battery dead cell - Use a new battery.
Loose or worn belt - Belt needs to be adjusted or replaced.

Starter turns slow
Low battery power - Battery is drained, recharge it.
Battery is draining quickly - Service battery or change it.
Terminals are faulty or battery cables are disconnected - Check battery wires and service or replace terminals.

Starter will not work
Battery is discharged or worn - Charge or replace the battery.
Wiring is improperly connected or disconnected - Check wiring and connect properly.
Low battery output - Battery is drained, charge it.
Defective starter motor - Change or repair starter.