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Home / Skid Steer Loaders / Bobcat Skid Steer Loaders / Bobcat 530

Bobcat 530 Troubleshooting

The Clark Bobcat 530 skid steer loader is powered by 57.7 cu.in (0.9L) Kohler K582S four-stroke L-head twin-cylinder air-cooled gasoline engine with a rated power of 23 hp (17.1 kW) at 3600 rpm. The Clark Bobcat 530 is equipped with a radial-lift loader boom, single-speed hydrostatic transmission, 60HS drive chains, and 7.00x15 tires. The hydraulic system has a pump with fluid flow rate of 8.3 gpm (31.5 lpm). The hydraulic pressure is 2500 psi (172 bar). The skid steer loader has a rated operating capacity of 800 lbs (360 kg) and tipping load of 1820 lbs (825 kg). The lift height is 102.5 inches (2600 mm) to hinge pin, and dump height is 85 inches (2160 mm).

Engine Troubleshooting

Engine hard starting or not starting
Fuel tank is empty - Fill gasoline up.
Improper fuel grade - Use quality fuel.
Air in fuel system - Bleed fuel system.
Disconnected or loose spark plug wire - Check spark plug wiring connection, repair or change.
Damaged spark plug - Replace spark plug.
Fuel filter is plugged - Install new filter.
Brake pedal not pushed down - Push the brake pedal down.
Carburetor settings incorrect - Adjusting as required.
Engine has low compression - Check cylinder block and replace defective parts.
Choke cable is not adjusted properly or worn - Adjust correctly or change the cable.

Engine runs intermittently
Clogged cooling fins - Need to clean or wash.
Ignition system problems - Check ignition system and replace faulty parts.
Choke cable is stuck or defective - Change or service the cable.
Clogged air filter - Change or clean air filter.
Dirty or damaged fuel pump - Service or change fuel pump.

Engine starts but stalls suddenly
Spark plug is defective - Replace spark plug.
Defective or dirty carburetor - Repair or clean carburetor.
Faulty ignition coil - Ignition coil should be replaced.
Worn or loose valve springs - New valve springs need to be installed.
Valves sticking - Valves must be cleaned.

Engine overheated
Low engine oil level - Add oil to the engine crankcase.
Engine is under excessive load - Reduce the load.
Cooling fins are clogged - Need to wash or clean.
Carburetor is running lean - Set the carburetor correctly.
Ignition timing is incorrect - Set the ignition timing properly.
Incorrect valve setting - Valves needs to be set correctly.

Abnormal engine knocking or noise
Stale gasoline - Use correct gasoline.
Excessive engine load - Reduce load.
Engine oil level is low - Fill the crankcase with engine oil.
Improperly adjusted low idle speed - Correct the settings.
Fuel pump is clogged or faulty - Clean or install new fuel pump.
Main bearings or crankshaft failure - Change or repair worn components.
Valve clearance is wrong - Adjustment procedure required.
Damaged piston rings or cylinder bore - Replace defective components.

Engine lacks power
Dirty or incorrectly adjusted carburetor - Adjust carburetor properly or service it.
Dirty air filter element - Change or service air filter.
Dirty or faulty fuel pump - Inspect fuel pump and change as required.
Defective ignition - Check ignition and replace faulty components.
Cylinder head gasket is defective - Cylinder-head gasket replacement required.
Stuck or burned valves - Replace or clean valves.
Push rod is bent or worn - Push rod needs to be changed.
Cylinder block components are worn - Replace defective parts.
Oil filter is dirty (if equipped) - Clean or change oil filter.

High fuel consumption
Throttle does not open well - Inspect throttle cable and adjust it.
Carburetor main jet adjustment is incorrect - Adjust it correctly.
Loose or faulty spark plug - Tighten or replace spark plug.
Valves are worn, stuck, or burned - Change or service valves.
Worn sleeve, piston, or rings - Replace defective components.
Valve clearance is not correct - Need to adjust valve clearance.

High engine oil consumption
Seals or gaskets are defective - Replace to repair leaks.
Valve guides and stems are worn - Need to replace the valves.
Worn or stuck piston rings - Piston rings need to be replaced.
Scored cylinder liner or piston - Inspect liner and piston, fit new parts as necessary.
Breather pipe or hose is clogged - Clean or change.

Drive System Troubleshooting

Machine is not moving forward or backward
Hydraulic fluid level low - Check and refill the hydraulic fluid.
Drive chain is worn - Inspect drive chain and replace faulty components.
Defective relief valve - Repair or replace.
Clogged hydraulic filter or suction line - Clean suction line or change hydraulic filter.
Foot or hand controls are faulty - Repair or change.
Drive motor or pump is defective - Inspect and replace as necessary.

Loss of power
Hydraulic oil filter is clogged - Replace or clean hydraulic filter.
Relief valve is worn or opened - Replace or close relief valve.
Transmission parts are damaged or faulty - Inspect and change defective parts.
Defective input drive shaft - Rebuild or change the shaft.
There is air in the hydraulic system - Bleed air from hydraulic system.

Overheated drive system
Low hydraulic fluid level - Check and refill the hydraulic fluid.
Plugged hydraulic fluid filter - Replace or clean hydraulic filter.
Worn or defective relief valve - Change or repair relief valve.
Drive pump or hydraulic motor malfunction - Replace or repair faulty component.
Dirty oil cooler - Clean the cooling fins.
Transmission overloading - Load should be reduced.

Drive system makes excessive noise
Oil viscosity is incorrect - Drain and refill with proper oil.
Hydraulic system is leaking air - Air bleeding is required.
Drive pump or hydraulic motor malfunction - Repair or change faulty component.
Worn or defective mechanical parts of drive system - Check drive system and change faulty parts.

Hydraulics Troubleshooting

Hydraulic system overheating
Hydraulic pressure is not correct - Set pressure correctly.
Main relief valve is faulty or misadjusted - Adjust or change relief valve.
Dirty hydraulic fluid - Fill up with fresh hydraulic fluid.
Not enough hydraulic fluid in the system - Add fluid to the hydraulic system.
Hydraulic pump is defective - Change or repair hydraulic pump if required.

Boom does not raise or lower
Lift controls are damaged - Repair or replace.
Hydraulic pump malfunction - Replace or repair pump if necessary.
Damaged hydraulic control valve - Repair or replace the valve.
Damaged hydraulic cylinder - Repair or replace hydraulic cylinder.
Low hydraulic oil level - Fill the system to proper hydraulic oil level.

Bucket tilt does not work
Defective bucket controls - Replace or repair.
Defective hydraulic pump - Repair or install new hydraulic pump.
Hydraulic control valve failure - Repair or change hydraulic valve.
Bucket cylinder is faulty - Repair or install a new cylinder.
Low hydraulic oil level - Fill the system to proper hydraulic oil level.

Slow bucket or lift arm action
Faulty hydraulic oil pump - Test the pump flow rate and install new pump if required.
Hydraulic cylinder leaking - Repair leak by replacing the seals.
Insufficient hydraulic fluid - Fill the system to proper hydraulic fluid level.
Faulty or incorrect setting hydraulic control valve - Repair or adjust correctly.
Hydraulic pressure loss - Hydraulic pressure must be set correctly.

Jerky operation of the bucket or boom
Air in the hydraulic system - Bleed hydraulic system.
Hydraulic oil filter clogging - Clean or install new filter.
Contaminated hydraulic oil - Fill up with fresh hydraulic oil.
Cylinder rod or tube is scratched - Replace failed component.

Hydraulic pump makes excessive noise
Hydraulic leakage or lack of oil - Correct hydraulic leaks or top up oil as needed.
Hydraulic filter clogging - Replace or clean the filter.
Suction line clogging - Need to clean the suction line.
Air in hydraulic pump - Bleed air from hydraulics.
Pump parts are faulty - Replace or rebuild the pump.

Electrical Troubleshooting

Battery will not charge
Electrical cable connections are loose or corroded - Service or tighten connections.
Faulty battery terminal clamps - Replace terminal clamps.
Faulty cell in battery - Battery replacement required.
Loose or worn belt - Adjust belt tension or change the belt.

Starter motor turns slow
Battery voltage is low - Charge the battery.
Battery is draining quickly - Battery needs service or replacement.
Disconnected cables or faulty battery terminals - Check cable connections and change or clean terminals.

Starter does not work
Battery is low or faulty - Battery needs to be recharged or replaced.
Wiring harness is disconnected or improperly connected - Check wiring harness and connect as required.
Low battery capacity - Battery is drained, charge it.
Starter motor is defective - Starter should be changed.

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SKID STEER LOADERS SPECIFICATIONS