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Mustang 2032 Troubleshooting

The Mustang 2032 skid steer loader is powered by 100.2 cu.in (1.64L) Yanmar 3TNV88 4-cycle 3-cylinder direct injection naturally aspirated liquid-cooled diesel engine with a rated power of 36 hp (27 kW) at 3000 rpm. The Mustang 2032 is equipped with a radial-lift loader boom, single-speed hydrostatic transmission, 80K drive chains, and 27x10.5x15 (Std) or 10.0x16.5 (Opt) tires. The hydraulic system has a pump with fluid flow rate of 14.5 gpm (54.5 lpm). The skid steer loader has a rated operating capacity of 1250 lbs (567 kg) and tipping load of 2500 lbs (1135 kg). The lift height is 110 inches (2795 mm) to hinge pin, and dump height is 86.5 inches (2195 mm).

Engine Troubleshooting

Engine starts hard or doesn't start
Air in the fuel system - Air bleeding.
Fuel filter element is dirty - Change filter element.
Faulty or dirty injection nozzles - Test injection nozzles and change if necessary.
Water in the fuel system - Change fuel and repair fuel system.
Incorrect valve clearance - Adjust to proper valve clearance.
Fuel injection pump malfunctioning - Replace or rebuild injection pump.

Diesel starts but immediately stops
Clogged air filter - Change or service air filter element.
Fuel filter plugging - Change or clean the filter element.
Fuel injection pump leakage - Check the fuel injection pump for leaks and fix it.
Defective or clogged fuel injectors - Test and replace fuel injectors if necessary.
Fuel injection pump is faulty - Repair or replace injection pump.

Engine stops running suddenly
Engine not warmed up - Engine is not warmed up to the required temperature.
Dirty fuel filter - Install new filter element.
Air in fuel system - Bleed fuel system.
Clogged injection nozzle - Check injection nozzles and replace if required.
Timing of fuel injection pump is incorrect - Adjust according to specifications.

Engine stops when idling
Improperly adjusted low idle speed - Normalize low idle speed.
Fuel injection pump malfunctioning - Replacement or repair required.
Fuel injector fault - Inspect fuel injectors and change as required.
Valve clearance is not correct - Correct valve clearance needs to be set.

Engine power is insufficient
Dirty air filter - Clean or change.
Fuel injection nozzles fault - Inspect nozzles and replace if necessary.
Insufficient fuel injection pressure - Check the fuel injection pressure and adjust if necessary.
Valve clearance is not correct - Correct valve clearance needs to be set.
Low idle speed set incorrectly - Correct the settings.
Clogged fuel lines or hoses - Clean fuel lines and hoses.
Cylinder head gasket is worn - Replace cylinder head gasket.
Piston rings are damaged or leaking - Install new piston rings.

Engine overheats
Insufficient coolant - Refill to the correct level and inspect system for leaks.
Insufficient engine oil - Add oil to the engine crankcase.
Dirty radiator core or defective radiator cap - Replace cap or clean radiator.
Fan belt is broken or worn - Replace the fan belt.
Engine is overloaded - Load reducing required.

Oil pressure is low
Oil level is low - Need to add oil.
Dirty oil filter element - Change or service engine oil filter.
Oil grade or viscosity is incorrect - Drain and refill with oil of correct grade and viscosity.
Incorrect crankshaft bearing oil clearance - Bearing needs to be changed.
Worn oil pump - Check and replace if necessary.

Abnormal engine knocking or noise
Engine oil level is insufficient - Checking oil level and add if necessary.
Engine is not fully warmed up - Warm up the engine.
Wrong setting of fuel injection pump timing - Set the fuel pump timing correctly.
Low idle speed setting is incorrect - Correct low idle settings.
Dirty or defective injectors - Replace or clean fuel injectors.
Connecting rod is defective or not aligned - Replace or align connecting rod.
Worn or broken pistons - Have pistons replaced.

Drive System Troubleshooting

Drive system will not operate in either direction
Insufficient hydraulic oil - Need to add oil.
Drive chain is damaged - Check drive chain and change defective components.
Faulty relief valve - Change or repair defective relief valve.
Dirty hydraulic filter or suction line - Clean suction line or change hydraulic filter.
Hand or foot controls malfunction - Change or repair.
Drive pump or motor malfunction - Check and repair if required.

Power is too low
Hydraulic oil filter is clogged - Change hydraulic filter.
Opened or defective relief valve - Close or change relief valve.
Transmission parts are damaged or faulty - Check and replace defective components.
Damaged input drive shaft - Faulty drive shaft need to be replaced or repair.
Air leaks in hydraulic system - Bleed air from system.

Drive system overheating
Hydraulic fluid level low - Check and refill the hydraulic fluid.
Hydraulic fluid filter is clogged - Replace hydraulic filter.
Worn or damaged relief valve - Relief valve need to be replaced or repair.
Hydraulic motor or drive pump failure - Repair or replace faulty component.
Oil cooler is clogged - Clean the cooling fins.
Overloaded drive system - Reduce drive system load.

Drive system makes excessive noise
Oil viscosity is incorrect - Use proper oil viscosity.
Hydraulic system is leaking air - Bleed hydraulic system.
Damaged drive pump or hydraulic motor - Check and repair if required.
Worn or damaged mechanical components of drive system - Check drive system and change faulty components.

Hydraulics Troubleshooting

Hydraulic system overheated
Hydraulic pressure incorrectly adjusted - Adjust pressure correctly.
Misadjusted or defective main relief valve - Adjust the valve or replace if necessary.
Dirty hydraulic fluid - Change hydraulic fluid.
Lack of hydraulic fluid - Fill the hydraulic system with oil.
Hydraulic pump is faulty - Replace or repair pump if necessary.

Boom won't lower or raise
Lift controls failure - Repair or replace.
Hydraulic pump is broken - Repair or change pump if required.
Hydraulic control valve malfunction - Repair or replace hydraulic valve.
Hydraulic cylinder not working - Replace or repair boom cylinder.
Hydraulic fluid level low - Add fluid as required.

Bucket is not working
Bucket controls are faulty - Check and repair as required.
Hydraulic pump is broken - Repair or replace pump if necessary.
Hydraulic control valve is faulty - Repair or replace the valve.
Hydraulic bucket cylinder not working - Replace or repair cylinder.
Hydraulic oil level low - Need to add oil.

Boom or bucket is working slowly
Worn hydraulic oil pump - Check the pump performance and replace it if required.
Oil leaks from hydraulic cylinder - Repair leak by replacing the seals.
Insufficient hydraulic oil - Need to add oil.
Hydraulic control valve is not set properly or defective - Adjust properly or repair.
Hydraulic pressure loss - Set pressure correctly.

Bucket or boom is jerky
Air trapped in hydraulic system - Bleed hydraulic system.
Hydraulic oil filter clogging - Change or clean oil filter.
Contaminated hydraulic fluid - Change hydraulic fluid.
Cylinder rod or tube is scuffed - Replace worn component.

Hydraulic pump is excessively noisy
Hydraulic leaks or low oil level - Add hydraulic oil or correct system leaks.
Dirty hydraulic filter - Clean or replace the filter.
Clogged suction line - Suction line needs to be cleaned.
Air enters the pump - Bleed air.
Worn pump components - Rebuild or change hydraulic pump.

Electrical Troubleshooting

Battery will not charge
Corroded or loose electrical wire connections - Clean or tighten wiring connections.
Defective battery terminal clamps - Terminal clamps should be changed.
Battery is defective - Battery change required.
Belt is defective or loose - Adjust belt tension or replace belt.

Starter turns slowly
Low battery output voltage - Battery is drained, recharge it.
Battery won’t hold charge - Battery needs service or replacement.
Faulty battery terminals or disconnected cables - Check cables and service or change terminals.

Starter motor is not working
Battery is discharged or worn - Replace or charge as required.
Battery cables are disconnected or incorrectly connected - Check cables and connect as needed.
Low battery output voltage - Low battery charging, charge as required.
Damaged starter motor - Starter needs to be changed.