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Mustang 2200R Troubleshooting

The Mustang 2200R skid steer loader is powered by 202.6 cu.in (3.32L) Yanmar 4TNV98CT-NMS 4-cylinder vertical in-line turbocharged liquid-cooled diesel engine with a rated power of 70.7 hp (52.7 kW). The Mustang 2200R is equipped with a radial-lift loader boom, one-speed or two-speed hydrostatic transmission, 100H drive chains, and 12x16.5 HD standard tires. The hydraulic system has a pump with fluid flow rate of 23.5 gpm (89.6 lpm) or 35 gpm (132.6 lpm). The skid steer loader has a rated operating capacity of 2200 lbs (998 kg) and tipping load of 4400 lbs (1995 kg). The max lift height is 123" (3125 mm) to hinge pin, and dump height is 94" (2390 mm).

Engine Troubleshooting

Engine hard to start or doesn't start
Air in fuel system - Bleed fuel system.
Dirty fuel filter - Replace filter element.
Clogged or burnt injection nozzle - Change fuel injection nozzles.
Water in the fuel system - Change fuel and repair fuel system.
Excessive valve clearance - Adjustment procedure required.
Damaged fuel injection pump - Repair or change injection pump.

Engine stalls after starting
Air cleaner is clogged - Clean or replace element.
Fuel filter element clogging - Change the filter element.
Fuel injection pump leakage - Check the fuel injection pump for leaks and fix it.
Fuel injectors are dirty or defective - Clean or replace fuel injectors.
Fuel injection pump is defective - Repair or replace injection pump.

Engine stops unexpectedly during operation
Engine is not fully warmed up - Engine is not warmed up to the required temperature.
Clogged fuel filter - Clean or replace the filter.
Air in fuel tank - Bleed fuel tank.
Fuel injection nozzles are faulty or clogged - Clean or change injection nozzles.
Timing of fuel injection pump is incorrect - Adjust as recommended.

Engine stalls at idle
Incorrect low idle speed adjustment - Adjust the low idle speed.
Fuel injection pump is not operating properly - Repair or install a new fuel pump.
Damaged or clogged injectors - Change or clean fuel injectors.
Valve clearance is wrong - Adjustment procedure required.

Engine lacks power
Air cleaner is clogged - Service or replace air cleaner.
Defective injection nozzle - Change fuel injection nozzles.
Improper fuel injection pressure - Adjust pressure to proper level.
Valve clearance is not correct - Adjust to proper valve clearance.
Improperly adjusted low idle speed - Correct low idle adjustment.
Dirty fuel lines or hoses - Fuel hoses and lines must be clean.
Blown cylinder head gasket - Cylinder-head gasket replacement required.
Piston rings are leaking or defective - Piston rings replacement required.

Engine overheated
Coolant level is low - Fill radiator to proper level and check components for faults.
Lack of engine oil - Checking oil level and add if necessary.
Damaged radiator cap or dirty radiator core - Install new cap or clean radiator.
Fan belt slipping or worn - If necessary, replace the belt.
Engine overloaded - Load reducing required.

Insufficient oil pressure
Low oil level - Check oil level and add oil as required.
Oil filter element clogging - Service or replace engine oil filter.
Incorrect oil viscosity - Drain crankcase and refill with correct oil.
Incorrect oil clearance in main bearing - Bearings need to be reinstalled.
Oil pump malfunction - Replace as required.

Engine noises or knocks
Not enough engine oil - Check oil level and add oil as required.
Engine is cold - Warm up the engine.
Timing of fuel injection pump is incorrect - Set it up as required.
Incorrect low idle speed adjustment - Correct the settings.
Defective fuel injectors - Inspect fuel injectors and change as required.
Connecting rod is worn or misaligned - Connecting rod needs to be replaced or aligned.
Worn or broken pistons - Replace the pistons as required.

Drive System Troubleshooting

Machine will not move forward or backward
Hydraulic oil level is low - Checking hydraulic oil level and add if necessary.
Drive chain is worn - Check drive chain and change defective components.
Relief valve malfunction - Repair or replace.
Plugged suction line or hydraulic filter - Replace hydraulic filter or clean suction line.
Worn or defective hand or foot controls - Replace or repair.
Worn drive motor or pump - Replace or repair faulty component.

Reduced power
Hydraulic oil filter is dirty - Replace or clean hydraulic filter.
Relief valve is defective or opened - Replace or close relief valve.
Faulty or damaged transmission components - Inspect and replace defective parts.
Input drive shaft is worn - Rebuild or change the shaft.
Air in the hydraulic system - Bleed hydraulic system.

Overheated drive system
Hydraulic fluid is insufficient - Checking hydraulic fluid level and add if necessary.
Hydraulic fluid filter is plugged - Change or clean hydraulic filter.
Relief valve is damaged or worn - Service or change relief valve.
Defective drive pump or hydraulic motor - Repair or replace faulty component.
Oil cooler is clogged - Cooling fins need to be cleaned.
Drive system overloaded continuously - Reduce drive system load.

Drive system is noisy
Improper oil viscosity - Use proper oil viscosity.
Air trapped in hydraulic system - Bleed hydraulic system.
Defective drive pump or hydraulic motor - Repair or replace faulty component.
Worn or damaged mechanical components of drive system - Inspect drive system and replace faulty parts.

Hydraulics Troubleshooting

Hydraulic system overheating
Incorrect hydraulic pressure setting - Set pressure correctly.
Faulty or improperly adjusted main relief valve - Replace or set up the relief valve.
Hydraulic oil is dirty - Hydraulic oil change required.
Not enough hydraulic fluid in the system - Add fluid to the hydraulic system.
Faulty hydraulic oil pump - Repair or replace pump if necessary.

Lift arm fails to drop or lift
Defective lift controls - Check and repair as required.
Hydraulic pump not working - Repair or change pump if required.
Hydraulic control valve is faulty - Replace or repair the valve.
Hydraulic cylinder failure - Install a new boom cylinder or repair it.
Low hydraulic oil level - Need to add oil.

Bucket fails to tilt
Damaged bucket controls - Replace or repair.
Damaged hydraulic oil pump - Repair or replace pump if necessary.
Hydraulic control valve malfunction - Replace or repair the valve.
Hydraulic bucket cylinder is broken - Replace or repair cylinder.
Low hydraulic fluid level - Fill the system to proper hydraulic fluid level.

Slow boom or bucket operation
Defective hydraulic pump - Check hydraulic pump flow and replace pump if necessary.
Hydraulic cylinder leaking - Install new cylinder seals.
Low hydraulic fluid level - Add fluid as required.
Hydraulic control valve is defective or set improper - Adjust correctly or repair.
Low hydraulic pressure - Adjust it correctly.

Bucket or boom movements are jerky
Air leaks in hydraulic system - Bleed hydraulic system.
Hydraulic oil filter is dirty - Clean or install new filter.
Hydraulic fluid is contaminated - Hydraulic fluid change required.
Cylinder tube or rod is scored - Change damaged component.

Excessive hydraulic pump noise
Low oil level or hydraulic leaks - Refill hydraulic oil or repair leaks in system.
Dirty hydraulic filter - Replace or clean the filter.
Suction line is clogged - Clean suction line as required.
Air enters the pump - Need to bleed air.
Worn pump parts - Rebuild or replace hydraulic pump.

Electrical Troubleshooting

Battery will not charge
Corroded or loose wire connections - Tighten or service connections.
Defective battery terminal connectors - Replace terminal connectors.
Worn-out battery - Battery change required.
Defective or loose belt - Adjust belt tension or install a new belt.

Starter motor turns slow
Low battery capacity - Recharge the battery.
Battery does not hold charge - Service charging system or replace battery.
Battery terminals are corroded or wires are disconnected - Check battery wires and service or replace terminals.

Starter is not working
Battery is low or faulty - Need to charge or replace the battery.
Battery cables are disconnected or incorrectly connected - Check cables and connect as needed.
Low battery capacity - Battery is drained, recharge it.
Starter motor failure - Repair or install a new starter.