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Case 1825B Troubleshooting

The Case 1825B skid steer loader is powered by 91.4 cu.in (1.5L) Kubota V1505 vertical four-cylinder indirect injection liquid-cooled diesel engine with a rated power of 27 hp (20.1 kW) at 2400 rpm. The Case 1825B is equipped with a 1-speed hydrostatic transmission, radial-lift loader boom, 60HT drive chain, and 5.70x15 standard tires. The hydraulic system has a pump with fluid flow rate of 9.6 gpm (36.3 lpm). The hydraulic pressure is 2300 psi (159 bar). The skid steer loader has a rated operating capacity of 885 lbs (400 kg) and tipping load of 1770 lbs (800 kg). The boom breakout force is 1730 lbs (785 kg), and bucket breakout force is 1795 lbs (815 kg).

Engine Troubleshooting

Diesel engine hard to start or doesn't start
Air in the fuel system - Air bleeding.
Fuel filter plugging - Service the filter.
Clogged or burnt injection nozzle - Install a new kit of correctly balanced nozzles.
Water in the fuel system - Change fuel and repair fuel system.
Valve clearance is wrong - Adjust valve clearance.
Fuel injection pump is broken - Rebuild or install a new injection pump.

Engine starts and stalls suddenly
Dirty air filter - Replace or clean air filter element.
Fuel filter element clogging - Change the filter element.
Poor fuel injection pump tightness - Look for any leaks of fuel pump, tighten it fast.
Damaged or clogged injectors - Change or clean fuel injectors.
Fuel injection pump is broken - Replace or rebuild injection pump.

Engine shuts off suddenly during operation
Engine has not warmed up to the recommended temperature - Warm up to required temperature.
Fuel filter element is clogged - Clean or change the filter.
Air in the fuel system - Air bleeding.
Fuel injection nozzles are damaged or dirty - Install a new kit of correctly balanced nozzles.
Improper fuel injection timing - Adjust as recommended.

Engine stalls when idle
Too low idle RPM - Adjust as required.
Fuel injection pump is broken - Change pump or rebuild it.
Fuel injectors are dirty or defective - Clean or replace fuel injectors.
The valve clearance is not adjusted - Need to adjust valve clearance.

Diesel engine is losing power
Air filter is plugged - Service or replace the air filter.
Dirty or damaged injection nozzles - Inspect nozzles and replace if necessary.
Incorrect fuel injection pressure - Adjust to correct pressure.
Improper valve clearance - Check and adjust.
Too low idle RPM - Adjust as required.
Clogged fuel lines or hoses - Clean fuel hoses and lines.
Blown cylinder head gasket - Install new cylinder head gasket.
Piston rings are worn or defective - Piston rings replacement required.

Engine overheats
Lack of engine coolant - Fill the cooling system and check components for leaks or other faults.
Engine oil level is insufficient - Fill the crankcase with engine oil.
Clogged radiator core or leaking radiator cap - Change cap or clean radiator.
Fan belt is loose or defective - Replace the fan belt.
Diesel engine is overloaded - Reduce load on the engine.

Low oil pressure
Engine oil level low - Add oil as required.
Oil filter clogged - Clean or change engine oil filter.
Different type of engine oil - Fill up with the correct oil viscosity.
Incorrect oil clearance in crankshaft bearing - Bearing needs to be changed.
Oil pump is worn or damaged - Install a new pump.

Engine noises or knocks
Engine oil level is insufficient - Fill up the oil to required level.
Low coolant temperature - Normalize the temperature by warming up the engine.
Incorrect adjustment of fuel injection pump timing - Set up as recommended.
Incorrectly set low idle speed - Correct low idle adjustment.
Clogged or defective injectors - Replace fuel injectors.
Connecting rod is not aligned or worn - Replace or align connecting rod.
Worn or broken pistons - Pistons need to be replaced.

Drive System Troubleshooting

Drive system doesn't function in one direction or either direction
Hydraulic fluid is insufficient - Fill the system to proper hydraulic fluid level.
Faulty drive chain - Check drive chain and change defective parts.
Relief valve defective or worn - Change or repair relief valve.
Dirty hydraulic filter or suction line - Check, clean, or change if necessary.
Hand or foot controls failure - Replace or repair.
Worn drive motor or pump - Inspect and change as required.

Loss of power
Hydraulic oil filter is dirty - Change hydraulic filter.
Open or faulty relief valve - Close or replace relief valve.
Transmission parts are damaged or faulty - Check and replace faulty components.
Input drive shaft is worn - Rebuild or change the shaft.
There is air in the hydraulic system - Bleed hydraulic system.

Drive system overheats
Insufficient hydraulic fluid - Checking hydraulic fluid level and add if necessary.
Clogged hydraulic fluid filter - Check, clean, or change as necessary.
Defective relief valve - Repair or replace.
Drive pump or hydraulic motor is damaged - Check and repair if required.
Clogged hydraulic oil cooler - Clean cooling fins as required.
Drive system is overloaded - Reduce the load.

Drive system is noisy
Incorrect oil viscosity - Use oil of proper viscosity.
Air in the hydraulic system - Need to bleed air.
Drive pump or hydraulic motor is damaged - Repair or change faulty component.
Worn or defective mechanical components of drive system - Inspect drive system and replace faulty parts.

Hydraulics Troubleshooting

Hydraulic system overheating
Hydraulic pressure is incorrect - Adjust it correctly.
Main relief valve is faulty or misadjusted - Adjust relief valve or change if required.
Dirty hydraulic fluid - Hydraulic fluid change required.
Hydraulic oil level is insufficient - Fill the hydraulic system with oil.
Hydraulic pump is worn - Install new pump or repair it.

Boom won't lower or raise
Lift controls malfunction - Change or repair.
Defective hydraulic pump - Install new pump or repair it.
Hydraulic control valve is defective - Install a new hydraulic valve or repair it.
Hydraulic cylinder is broken - Install a new boom cylinder or repair it.
Insufficient hydraulic oil - Checking hydraulic oil level and add if necessary.

Bucket tilt does not work
Bucket tilt controls are defective - Repair or change.
Defective hydraulic pump - Repair or replace pump if necessary.
Faulty hydraulic control valve - Repair or replace hydraulic valve.
Broken bucket cylinder - Replace or repair cylinder.
Insufficient hydraulic oil - Need to add oil.

Slow bucket or lift arm operation
Hydraulic pump is defective - Test the pump performance and change pump if required.
Leaking hydraulic cylinder - Correct leakage by changing the seals.
Hydraulic oil is insufficient - Fill the system to proper hydraulic oil level.
Hydraulic control valve is defective or set improper - Set correctly or repair.
Hydraulic pressure is low - Adjust it correctly.

Jerky operation of the bucket or boom
There is air in the hydraulic system - Bleed air from system.
Hydraulic oil filter element clogging - Change or clean oil filter.
Hydraulic fluid is dirty - Hydraulic fluid change required.
Scored cylinder tube or rod - Replace damaged component.

Hydraulic pump is excessively noisy
Low oil level or hydraulic leaks - Add hydraulic oil or correct system leaks.
Plugged hydraulic filter - Replace or clean the filter.
Suction line is clogged - Service the suction line.
Pump is sucking air - Bleed air from hydraulics.
Pump components are damaged - Change or rebuild pump.

Electrical Troubleshooting

Battery will not charge
Loose or corroded electrical wiring connections - Tighten or service cable connections.
Defective battery terminal connectors - Terminal connectors need to be changed.
Dead cell in battery - Change the battery.
Belt is worn or loose - Adjust belt tension or install a new belt.

Starter cranks slowly
Low battery voltage - Recharge the battery.
Battery discharges quickly - Service charging system or replace battery.
Faulty battery terminals or disconnected cables - Connect wires correctly or change terminals.

Starter is not working
Battery is low or faulty - Charge or replace the battery.
Disconnected or improperly connected wiring harness - Inspect battery wiring harness and connect as required.
Low battery voltage - Battery needs to be recharged.
Faulty starter motor - Repair or install a new starter.