Home / Skid Steer Loaders / Case Skid Steer Loaders / Case SV280B

Case SV280B Troubleshooting

The Case SV280B skid steer loader is powered by 207 cu.in (3.4L) FPT F5H FL463A 4-cycle 4-cylinder turbocharged diesel engine with a rated power of 68 hp (51 kW) at 2500 rpm. The Case SV280B is equipped with a vertical-lift loader boom, one-speed or two-speed hydrostatic transmission, ASA 100 drive chains, and 12.00x16.5 standard tires. The hydraulic system has a pump with fluid flow rate of 24.2 gpm (91.5 lpm) or 37.6 gpm (142.5 lpm). The loader has a boom breakout force of 6010 lbs (2730 kg) and bucket breakout force of 8775 lbs (3990 kg). The rated operating capacity is 2800 lbs (1270 kg), and tipping load is 5600 lbs (2540 kg).

Engine Troubleshooting

Engine difficult to start or will not start
Air in the fuel pipes - Bleed the fuel pipes.
Clogged fuel filter - Install new filter element.
Damaged or dirty injection nozzles - Install a new kit of correctly balanced nozzles.
Water or dirt in fuel system - Drain, flush, and service the system.
The valve clearance is not adjusted - Adjust valve clearance according to specifications.
Fuel injection pump is defective - Rebuild or change fuel pump.

Diesel starts and stalls immediately
Dirty air filter - Replace or clean air filter element.
Fuel filter plugged - Service or replace the filter.
Poor fuel injection pump tightness - Look for any leaks of fuel pump, tighten it fast.
Defective or clogged fuel injectors - Test and replace fuel injectors if necessary.
Fuel injection pump is faulty - Replace or repair injection pump.

Engine stops suddenly during operation
Engine not warmed up - Warm up to required temperature.
Fuel filter is plugged - Change the filter element.
Air in fuel system - Bleed fuel system.
Defective injection nozzle - Check injection nozzles and replace if required.
Timing of fuel injection pump is incorrect - Check the fuel injection pump timing adjustment.

Engine stalls at idle
Incorrect low idle speed adjustment - Correct the settings.
Fuel injection pump is defective - Rebuild or change fuel pump.
Fuel injectors are faulty or clogged - Change or clean fuel injectors.
The valve clearance is not adjusted - Adjust valve clearance.

Diesel engine loses power
Dirty air cleaner - Service or replace air cleaner.
Faulty fuel injection nozzles - Install a new kit of correctly balanced nozzles.
Insufficient fuel injection pressure - Test fuel injection pressure and adjust it correctly.
The valve clearance is incorrect - Adjust valve clearance.
Wrong adjustment of low idle speed - Adjustment required.
Clogged fuel lines or hoses - Fuel lines and hoses need to be cleaned.
Cylinder-head gasket is broken - Gasket should be replaced.
Piston rings are broken or leaking - Piston rings replacement required.

Engine overheats
Lack of coolant in cooling system - Fill radiator to proper level and check components for faults.
Engine oil level is low - Fill up the engine oil.
Radiator fins are clogged or radiator cap is faulty - Change cap or clean radiator.
Fan belt is loose or defective - Change as required.
Engine is under excessive load - Reduce engine load.

Oil pressure is insufficient
Engine oil insufficient - Fill the crankcase with oil.
Clogged oil filter - Clean or replace engine oil filter element.
Oil grade or viscosity is wrong - Drain crankcase and refill with correct oil.
Incorrect oil clearance in main bearing - Change bearings.
Oil pump malfunction - Repair or replace.

Engine knocks or noises
Insufficient engine oil - Check oil level and add oil as required.
Engine is not preheated - Warm up the engine.
Timing of fuel injection pump is incorrect - Set it up as required.
Low idle speed set incorrectly - Test and adjust.
Dirty or defective injectors - Clean fuel injectors or change it.
Connecting rod failure or misalignment - Need to replace or align the connecting rod.
Pistons are worn or scored - Have pistons replaced.

Drive System Troubleshooting

Drive system will not operate in either direction
Insufficient hydraulic fluid - Add fluid as required.
Drive chain fault - Inspect drive chain and replace faulty components.
Stuck relief valve - Service or change relief valve.
Hydraulic filter or suction line is plugged - Replace hydraulic filter or clean suction line.
Hand or foot controls malfunction - Repair or change.
Worn drive motor or pump - Repair or replace faulty component.

Low power
Dirty hydraulic oil filter - Check, clean, or replace as required.
Worn or open relief valve - Close or change relief valve.
Worn or faulty transmission components - Check and change faulty components.
Damaged input drive shaft - Repair or replace drive shaft.
There is air in the hydraulic system - Bleed air from system.

Drive system keeps overheating
Hydraulic fluid is insufficient - Add fluid as required.
Hydraulic fluid filter is dirty - Change hydraulic filter.
Faulty relief valve - Repair or replace relief valve.
Defective drive pump or hydraulic motor - Replace or repair faulty component.
Hydraulic oil cooler is plugged - Cooling fins should be cleaned.
Drive system overload - Reduce the load.

Excessive noise
Wrong oil viscosity - Use the specified type of oil.
Air leaks in hydraulic system - Bleed air from hydraulic system.
Drive pump or hydraulic motor malfunction - Change or repair faulty component.
Mechanical parts of drive system are damaged or worn - Inspect the parts for worn or defect and repair as needed.

Hydraulics Troubleshooting

Hydraulic system is overheated
Hydraulic pressure is incorrect - Set pressure correctly.
Main relief valve malfunction or improper adjustment - Adjust or replace the relief valve.
Hydraulic fluid is dirty - Hydraulic fluid change required.
Hydraulic fluid level is low - Need to add fluid.
Hydraulic pump is defective - Replace or repair pump if necessary.

Boom cannot be lowered or raised
Defective lift controls - Repair or change.
Hydraulic pump failure - Replace or repair pump if necessary.
Hydraulic control valve is faulty - Repair or change hydraulic valve.
Broken hydraulic cylinder - Change or repair lift cylinder.
Insufficient hydraulic oil - Fill the system to proper hydraulic oil level.

Bucket fails to tilt
Defective bucket controls - Repair or change.
Hydraulic pump not working - Replace or repair pump if necessary.
Hydraulic control valve is faulty - Install a new valve or repair it.
Broken bucket cylinder - Change or repair cylinder.
Low hydraulic fluid level - Fill the system to proper hydraulic fluid level.

Boom or bucket is working slowly
Hydraulic pump is worn - Test the pump performance and change pump if required.
Leaking hydraulic cylinder - Replace cylinder piston seals.
Hydraulic oil level low - Check and refill the hydraulic oil.
Hydraulic control valve is not set properly or defective - Set properly or repair.
Low hydraulic pressure - Adjust pressure correctly.

Bucket or boom is working jerkily
Air leaks in hydraulic system - Bleed air from hydraulic system.
Hydraulic oil filter element clogging - Service or replace the hydraulic filter.
Hydraulic fluid contamination - Change hydraulic fluid.
Scratched cylinder rod or tube - Replace failed component.

Excessive hydraulic pump noise
Insufficient oil level or leaking hydraulic system - Correct hydraulic leaks or top up oil as needed.
Hydraulic filter is clogged - Service or replace hydraulic filter.
Suction line clogging - Service the suction line.
Air enters the pump - Bleed air.
Pump components are faulty - Change or rebuild pump.

Electrical Troubleshooting

Battery is not charging
Corroded or loose cable connections - Service or tighten cable connections.
Battery terminal connectors are defective - Terminal connectors need to be changed.
Battery is defective - Change the battery.
Worn or loose belt - Install a new belt or adjust belt tension.

Starter motor cranks slow
Battery power is low - Low battery charging, charge as required.
Battery drains quickly - Service or replace the battery.
Disconnected cables or faulty battery terminals - Connect wires correctly or change terminals.

Starter is not cranking
Battery is discharged or defective - Battery needs to be recharged or replaced.
Battery wires are disconnected or incorrectly connected - Check wires and connect correctly.
Battery voltage is low - Battery needs to be recharged.
Starter motor failing - Replace or repair starter.