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Kubota SVL95-2S Troubleshooting
The
Kubota SVL95-2S compact track loader driveline system components: 230 cu.in
(3.8L) Kubota V3800-TIEF4 4-cylinder turbocharged diesel engine with a rated
power of 87 hp (65 kW), and 2-speed hydro transmission. The hydraulic system has
a pump with a rated flow of 23 gpm (87.2 lpm) or 40 gpm (151.6 lpm). The Kubota
SVL95-2S is equipped with a vertical-lift loader boom, self-leveling bucket,
triple flange lower track rollers, and 17.7" (450 mm) rubber tracks. The loader
has a max lift height of 128.5" (3265 mm) to hinge pin and breakout force of
7960 lbs (3620 kg). The rated operating capacity is 4570 lbs (2072 kg), and
tipping load is 9140 lbs (4144 kg).
| Engine Troubleshooting |
Engine difficult to start or doesn't start
Air trapped in fuel system - Bleed air.
Fuel filter element clogging - Change the filter element.
Burnt or defective injection nozzle - Service or change injection nozzles.
Water in the fuel system - Change fuel and repair fuel system.
Valve clearance is wrong - Have it adjusted.
Fuel injection pump malfunctioning - Replace injection pump or repair it.
Engine starts and then shuts off
Clogged air cleaner - Clean or replace air cleaner element.
Fuel filter element clogging - Change the filter element.
Fuel injection pump is leaking - Repair any leaks.
Defective or clogged fuel injectors - Clean fuel injectors or change it.
Fuel injection pump is defective - Rebuild or replace pump.
Engine stalls during operation
Engine not warmed up - Warm up to required temperature.
Fuel filter element clogging - Change filter element.
Air in fuel system - Bleed fuel system.
Fuel injection nozzles are damaged or dirty - Check injection nozzles and replace if required.
Improper fuel injection timing - Set the fuel pump timing correctly.
Engine stops when idle
Wrong adjustment of low idle speed - Test and adjust.
Fuel injection pump is defective - Repair or install new pump.
Fuel injectors are faulty or clogged - Test and replace fuel injectors if necessary.
Valve clearance is wrong - Need to adjust valve clearance.
Loss of engine power
Air filter is clogged - Clean or change filter.
Clogged injection nozzle - Change fuel injection nozzles.
Fuel injection pressure is wrong - Correct the pressure settings.
The valve clearance is not adjusted - Need to adjust valve clearance.
Wrong adjustment of low idle speed - Adjust low idle speed.
Clogged fuel hoses or lines - Clean fuel system lines and hoses.
Damaged cylinder-head gasket - Install a new gasket.
Piston rings are damaged or leaking - Install new piston rings.
Engine is overheated
Low coolant level - Top up coolant fluid and check system for leaks.
Engine oil level is insufficient - Fill the crankcase with engine oil.
Radiator fins are clogged or radiator cap is faulty - Clean radiator or replace cap.
Fan belt slipping or worn - Install new fan belt.
Engine is overloaded - Reduce engine load.
Oil pressure is insufficient
Engine oil level low - Fill up the engine oil.
Oil filter element clogged - Replace or clean engine oil filter element.
Wrong oil viscosity - Use oil of correct viscosity.
Crankshaft bearing oil clearance is incorrect - Bearing replacement required.
Oil pump is damaged - Remove and inspect oil pump.
Abnormal engine knocking or noise
Insufficient engine oil - Check and refill engine oil.
Engine not warmed up - Warm up engine as required.
Incorrect adjustment of fuel injection pump timing - Adjust fuel injection pump as required.
Incorrectly adjusted low idle speed - Test and adjust.
Defective fuel injectors - Inspect fuel injectors and change as required.
Connecting rod is misaligned or worn - Need to align or replace the connecting rod.
Worn or broken pistons - Pistons need to be replaced.
| Drive System Troubleshooting |
Machine will not move forward or backward
Hydraulic fluid is insufficient - Check and refill the hydraulic fluid.
Track mechanism is damaged or blocked - Repair or remedy blockage.
Defective input drive shaft - Service or change drive shaft.
Faulty relief valve - Repair or replace relief valve.
Dirty suction line or hydraulic filter - Replace hydraulic filter or clean suction line.
Defective hand or foot controls - Change or repair.
Drive motor or pump is worn - Check and repair if required.
Machine won't drive straight or drives jerkily
Track mechanism is defective or jammed - Remedy jamming or repair tracks.
Tracks are improperly tensioned or worn - Adjust track tension or repair tracks.
Undercarriage track frame is plugged with dirt, debris, or foreign objects - Clean undercarriage track frame, remove foreign objects and debris.
Lack of power
Dirty hydraulic oil filter - Change or clean hydraulic filter.
Relief valve is worn or opened - Close or replace relief valve.
Defective or worn transmission parts - Check and change faulty components.
Input drive shaft is worn - Rebuild or change the shaft.
Air leaks in hydraulic system - Air bleeding is required.
Drive system overheating
Insufficient hydraulic fluid - Check and refill the hydraulic fluid.
Plugged hydraulic fluid filter - Change or clean hydraulic filter.
Relief valve worn or defective - Rebuild or install a new relief valve.
Drive pump or hydraulic motor is damaged - Repair or change faulty component.
Oil cooler is clogged - Cooling fins need to be cleaned.
Drive system is overloaded - Load needs to be reduced.
Excessive noise
Oil viscosity is incorrect - Drain and refill with correct oil.
There is 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 - Check drive system and change faulty parts.
| Hydraulics Troubleshooting |
Hydraulic system overheats
Incorrect hydraulic pressure setting - Adjust pressure as required.
Misadjusted or defective main relief valve - Adjust or replace the relief valve.
Dirty hydraulic fluid - Hydraulic fluid change required.
Not enough hydraulic fluid in the system - Need to add fluid.
Defective hydraulic pump - Replace or repair pump if necessary.
Lift arm can't drop or lift
Lift controls failure - Change or repair.
Hydraulic pump malfunction - Repair or change pump if required.
Hydraulic control valve malfunction - Change or repair hydraulic valve.
Hydraulic cylinder is broken - Repair or install a new lift cylinder.
Insufficient hydraulic fluid - Checking hydraulic fluid level and add if necessary.
Bucket fails to tilt
Bucket tilt controls are damaged - Repair or change.
Defective hydraulic pump - Repair or replace pump if necessary.
Hydraulic control valve malfunction - Install a new valve or repair it.
Defective bucket cylinder - Repair or replace cylinder.
Hydraulic fluid is insufficient - Fill the system to proper hydraulic fluid level.
Slow bucket or lift arm operation
Worn hydraulic oil pump - Check the pump capacity and replace pump if required.
Leaking hydraulic cylinder - Cylinder seals need to be replaced.
Hydraulic fluid level low - Add fluid as required.
Hydraulic control valve is defective or set improper - Set correctly or repair.
Hydraulic pressure loss - Adjust pressure as required.
Bucket or boom movements are jerky
Air in hydraulic system - Bleed air from hydraulic system.
Hydraulic oil filter element is dirty - Service or change the hydraulic filter.
Hydraulic oil is contaminated - Fill up with fresh hydraulic oil.
Cylinder tube or rod scoring - Change failed component.
Excessive hydraulic pump noise
Hydraulic leaks or low oil level - Remedy hydraulic leakage or refill oil as necessary.
Dirty hydraulic filter - Service or replace hydraulic filter.
Suction line clogging - Suction line must be serviced.
Pump sucks air - Air bleeding is required.
Worn pump parts - Rebuild or replace hydraulic pump.
| Electrical Troubleshooting |
Battery does not charge
Electrical wire connections are loose or corroded - Clean or tighten connections.
Defective battery terminal clamps - Terminal clamps need to be replaced.
Worn-out battery - Replace the battery.
Worn or loose belt - Replace belt or adjust belt tension.
Starter cranks slowly
Battery capacity is low - Recharge the battery.
Battery is not holding charge - Service or change the battery.
Battery cables are disconnected or terminals are faulty - Check cable connections and change or clean terminals.
Starter will not crank
Battery is discharged or defective - Replace or charge as required.
Battery cables are disconnected or improperly connected - Inspect cables and connect properly.
Battery voltage is low - Battery needs to be recharged.
Defective starter motor - Repair or install a new starter.
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| COMPACT TRACK LOADERS SPECIFICATIONS |