____________________________________________________________________________________
| Home / Compact Track Loaders / Kubota Compact Track Loaders / Kubota SVL75 |
Kubota SVL75 Troubleshooting
The
Kubota SVL75 compact track loader driveline system components: 203.2 cu.in
(3.3L) Kubota V3307-TE3 4-cylinder direct injection turbocharged diesel engine
with a rated power of 74.3 hp (55.2 kW), and two-speed hydro transmission. The
hydraulic system has a pump with a rated flow of 19 gpm (72.2 lpm). The Kubota
SVL75 is equipped with a vertical-lift loader boom, self-leveling bucket, triple
flange lower track rollers, and 15" (380 mm) rubber tracks. The loader has a
maximum lift height of 119.1" (3025 mm) to hinge pin and bucket breakout force
of 6205 lbs (2815 kg). The rated operating capacity is 3285 lbs (1490 kg), and
tipping load is 6570 lbs (2980 kg).
| Engine Troubleshooting |
Engine hard to start or won't start
Air in fuel tank - Bleed fuel tank.
Fuel filter element clogging - Change filter element.
Burnt or defective injection nozzle - Check and replace nozzles if required.
Water in the fuel system - Change fuel and repair fuel system.
Valve clearance is out of adjustment - Check and adjust.
Fuel injection pump failure - Repair or install new pump.
Engine starts but then stalls
Air cleaner is dirty - Install new air cleaner element.
Clogged fuel filter - Clean the filter or install new filter element.
Poor fuel injection pump tightness - Look for any leaks of fuel pump, tighten it fast.
Fuel injectors are dirty or defective - Inspect fuel injectors and change as required.
Fuel injection pump is damaged - Change pump or rebuild it.
Engine stalls after running
Low coolant temperature - Normalize the temperature by warming up the engine.
Dirty fuel filter - Service or replace the filter.
Air in the fuel system - Air bleeding.
Fuel injection nozzles are faulty or clogged - Service or change injection nozzles.
Wrong setting of fuel injection pump timing - Set up as recommended.
Engine stops when idle
Incorrect low idle setting - Normalize low idle speed.
Faulty fuel injection pump - Repair or install new pump.
Clogged or defective injectors - Replace fuel injectors.
Incorrect valve clearance - Need to adjust valve clearance.
Engine power is insufficient
Dirty air filter - Clean or replace element.
Fuel injection nozzles are damaged - Install a new kit of correctly balanced nozzles.
Fuel injection pressure is wrong - Adjust to correct pressure.
The valve clearance is incorrect - Adjust to proper valve clearance.
Low idle speed adjustment is incorrect - Adjust low idle speed.
Fuel hoses or lines are clogged - Fuel lines and hoses need to be cleaned.
Defective cylinder head gasket - Cylinder-head gasket replacement required.
Piston rings are defective or leaking - Replace piston rings.
Engine overheats
Lack of coolant in cooling system - Fill the cooling system and check components for leaks or other faults.
Engine oil level low - Need to add engine oil.
Dirty radiator core or faulty radiator cap - Replace cap or clean radiator.
Loose or defective fan belt - Belt change is required.
Engine overload - Reduce engine load.
Low oil pressure
Insufficient engine oil - Fill crankcase to proper oil level.
Oil filter is clogged - Clean or change engine oil filter.
Incorrect engine oil Drain crankcase and refill with correct oil.
Crankshaft bearing oil clearance is incorrect - Replace bearings.
Worn oil pump - Repair or change.
Abnormal engine knocking or noise
Lack of engine oil - Fill up the oil to required level.
Coolant temperature is low - Warm up engine as required.
Wrong setting of fuel injection pump timing - Set up as recommended.
Low idle speed adjustment is incorrect - Adjustment required.
Clogged or defective injectors - Replace fuel injectors.
Connecting rod is worn or not aligned - Connecting rod must be aligned or replaced.
Worn or broken pistons - Replace the pistons as required.
| Drive System Troubleshooting |
Drive system won't operate in either direction
Hydraulic oil level is low - Checking hydraulic oil level and add if necessary.
Undercarriage tracks are jammed or defective - Repair or remedy jamming.
Input drive shaft is damaged - Repair or replace.
Defective relief valve - Repair or install a new relief valve.
Clogged suction line or hydraulic filter - Service suction line or replace hydraulic filter.
Defective foot or hand controls - Repair or replace.
Drive motor or pump failure - Repair or replace faulty component.
Machine does not drive straight or drives jerky
Undercarriage tracks are jammed or defective - Remove jamming or repair tracks.
Tracks are faulty or loose - Adjust track tension properly or repair tracks.
Undercarriage track frame is clogged with dirt, debris, or foreign objects - Remove foreign objects or debris and clean undercarriage track frame.
Low power
Plugged hydraulic oil filter - Replace or service hydraulic filter.
Worn or open relief valve - Change or close relief valve.
Transmission parts are defective or worn - Inspect and change faulty parts.
Input drive shaft failure - Repair or replace faulty drive shaft.
There is air in the hydraulic system - Bleed hydraulic system.
Drive system overheats
Insufficient hydraulic fluid - Check and refill the hydraulic fluid.
Hydraulic fluid filter is dirty - Replace or clean hydraulic filter.
Relief valve is damaged or worn - Rebuild or install a new relief valve.
Drive pump or hydraulic motor is damaged - Inspect and change as required.
Plugged hydraulic oil cooler - Cooling fins need to be cleaned.
Transmission overloading - Load needs to be reduced.
Excessive noise
Oil viscosity is too heavy - Drain and refill with proper oil.
Hydraulic system is leaking air - Bleed air from system.
Defective drive pump or hydraulic motor - Inspect and change as required.
Defective or worn mechanical components of drive system - Inspect the parts for defect or damage and repair as required.
| Hydraulics Troubleshooting |
Hydraulic system overheating
Hydraulic pressure is incorrect - Adjust it correctly.
Main relief valve is faulty or misadjusted - Adjust the valve or replace if necessary.
Dirty hydraulic oil - Fill up with fresh hydraulic oil.
Hydraulic fluid level is insufficient - Check and refill the hydraulic fluid.
Faulty hydraulic oil pump - Change or repair hydraulic pump if required.
Boom fails to lift or drop
Faulty lift controls - Inspect and repair if necessary.
Damaged hydraulic oil pump - Change or repair hydraulic pump if required.
Hydraulic control valve failure - Repair or replace the valve.
Hydraulic cylinder not working - Repair or change hydraulic cylinder.
Insufficient hydraulic fluid - Checking hydraulic fluid level and add if necessary.
Bucket does not function
Bucket tilt controls malfunction - Repair or replace.
Hydraulic pump failure - Repair or replace pump if necessary.
Defective hydraulic control valve - Change or repair hydraulic valve.
Hydraulic bucket cylinder is broken - Replace or repair cylinder.
Insufficient hydraulic oil - Check and refill the hydraulic oil.
Bucket or lift arm moves slowly
Hydraulic pump is faulty - Flow-rate pump and change pump if necessary.
Oil leaks from hydraulic cylinder - Cylinder seals need to be replaced.
Hydraulic oil level low - Check and refill the hydraulic oil.
Defective or not adjusted hydraulic control valve - Adjust correctly or repair.
Low hydraulic pressure - Correct setting is required.
Lift arm or bucket movements are jerky
Air in the hydraulic system - Bleed hydraulic system.
Dirty hydraulic oil filter - Change or clean oil filter.
Contaminated hydraulic fluid - The fluid must be changed.
Cylinder rod or tube is scratched - Change failed component.
Hydraulic pump makes excessive noise
Hydraulic leakage or low oil level - Correct hydraulic leaks or top up oil as needed.
Hydraulic filter is dirty - Replace or clean the filter.
Dirty suction line - Need to clean the suction line.
Air in hydraulic pump - Bleed air from hydraulics.
Worn pump components - Install new hydraulic pump or rebuild it.
| Electrical Troubleshooting |
Battery does not charge
Corroded or loose wire connections - Tighten or service connections.
Faulty battery terminal clamps - Terminal clamps need to be replaced.
Bad cell in battery - Use a new battery.
Loose or defective belt - Change belt or adjust belt tension.
Starter cranks slow
Low battery output voltage - Recharge the battery.
Battery will not hold charge - Service battery or replace it.
Bad terminals or disconnected battery cables - Connect cables properly or replace terminals.
Starter does not work
Battery is low or faulty - Charge or change the battery.
Wiring is improperly connected or disconnected - Check wiring and connect properly.
Battery voltage is low - Low battery charging, charge as required.
Defective starter motor - Repair or change starter.
____________________________________________________________________________________
____________________________________________________________________________________
| COMPACT TRACK LOADERS SPECIFICATIONS |