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| Home / Compact Track Loaders / Kubota Compact Track Loaders / Kubota SVL75-3 |
Kubota SVL75-3 Troubleshooting
The
Kubota SVL75-3 compact track loader is powered by Kubota V3307-CR-TE5A
four-cylinder turbocharged liquid-cooled diesel engine with a rated power of
74.3 hp (55.2 kW). The Kubota SVL75-3 is equipped with a 2-speed hydrostatic
transmission, 15.8" (400 mm) rubber tracks, triple flange lower track rollers,
vertical-lift loader boom, and self-leveling bucket. The hydraulic system has a
pump with fluid flow rate of 19.2 gpm (72.8 lpm) or 29.8 gpm (112.9 lpm). The
track loader has a rated operating capacity of 3555 lbs (1613 kg) and tipping
load of 7110 lbs (3226 kg). The max lift height is 122.7" (3115 mm) to hinge
pin, and bucket breakout force is 6190 lbs (2810 kg).
| Engine Troubleshooting |
Engine starts hard or won't start
There is air in the fuel system - Bleed the system.
Clogged fuel filter - Replace the filter element.
Burnt or clogged injection nozzle - Clean or change injection nozzles.
Water in the fuel system - Change fuel and repair fuel system.
Valve out of adjustment - Have it adjusted.
Fuel injection pump is faulty - Rebuild or change fuel pump.
Engine stalls after starting
Clogged air cleaner - Clean or change cleaner.
Fuel filter plugged - Clean or replace the filter.
Fuel injection pump leakage - Check the fuel injection pump for leaks and fix it.
Defective or clogged fuel injectors - Replace or clean fuel injectors.
Fuel injection pump is damaged - Install a new pump or rebuild.
Engine shuts off while running
Low coolant temperature - Warm up to required temperature.
Fuel filter element is clogged - Clean or change the filter.
Air in the fuel pipes - Bleed the fuel pipes.
Faulty or dirty injection nozzles - Clean or change injection nozzles.
Wrong setting of fuel injection pump timing - Set up as recommended.
Engine stops while idling
Incorrectly set low idle speed - Adjust low idle speed.
Fuel injection pump is defective - Repair or change injection pump.
Damaged or clogged injectors - Inspect fuel injectors and change as required.
Valve clearance is not correct - Need to adjust valve clearance.
Diesel power loss
Plugged air filter - Install new air filter element.
Clogged or defective injection nozzles - Change fuel injection nozzles.
Fuel injection pressure is incorrect - Adjust to correct pressure.
Improper valve clearance - Adjustment procedure required.
Low idle speed setting is not correct - Correct the settings.
Fuel lines or hoses clogging - Clean fuel system lines and hoses.
Defective cylinder head gasket - Gasket should be replaced.
Piston rings are worn or damaged - Change piston rings.
Engine overheating
Insufficient coolant - Fill the cooling system and check components for leaks or other faults.
Not enough engine oil - Fill up the oil to required level.
Clogged radiator core or leaking radiator cap - Replace cap or clean radiator.
Fan belt slipping or worn - Fan belt must be replaced.
Engine overload - Reduce load on the engine.
Low oil pressure
Engine oil level low - Checking oil level and add if necessary.
Engine oil filter is plugged - Replace or service engine oil filter.
Oil grade or viscosity is wrong - Use oil of proper viscosity.
Incorrect crankshaft bearing oil clearance - Replace bearings.
Oil pump is worn or damaged - Remove and inspect oil pump.
Engine noises or knocks
Engine oil level is low - Checking oil level and add if necessary.
Low coolant temperature - Warm up to required temperature.
Incorrect adjustment of fuel injection pump timing - Adjust the pump as required.
Incorrect low idle setting - Correct the settings.
Clogged or defective injectors - Clean or replace fuel injectors.
Connecting rod misalignment or failure - Connecting rod needs to be replaced or aligned.
Piston wear or scoring - Have pistons replaced.
| Drive System Troubleshooting |
Machine is not moving in one direction or either direction
Hydraulic fluid is insufficient - Fill the system to proper hydraulic fluid level.
Defective or blocked undercarriage tracks - Remove blockage or repair tracks.
Input drive shaft is worn - Repair or replace.
Defective or worn relief valve - Repair or replace relief valve.
Hydraulic filter or suction line is clogged - Replace hydraulic filter or clean suction line.
Defective foot or hand controls - Check and repair as required.
Drive pump or motor malfunction - Replace or repair faulty component.
Machine does not drive straight or drives jerky
Jammed or damaged track mechanism - Repair or remedy jamming.
Tracks are improperly tensioned or faulty - Adjust track tension or repair tracks.
Track frame is clogged with debris, dirt, or foreign objects - Remove foreign objects or debris and clean undercarriage track frame.
Power is too low
Hydraulic oil filter is dirty - Check, clean, or replace as required.
Relief valve is open or worn - Replace or close relief valve.
Faulty or worn transmission components - Check and change faulty components.
Input drive shaft failure - Faulty drive shaft need to be replaced or repair.
Air leaks in hydraulic system - Air bleeding is required.
Drive system is overheated
Hydraulic oil is insufficient - Need to add oil.
Hydraulic fluid filter is plugged - Replace or clean hydraulic filter.
Relief valve is broken - Repair or replace relief valve.
Worn hydraulic motor or drive pump - Replace or repair faulty component.
Clogged hydraulic oil cooler - Cooling fins need to be cleaned.
Drive system overloaded continuously - Load should be reduced.
Drive system makes excessive noise
Oil viscosity is wrong - Drain and refill with correct oil.
Air trapped in hydraulic system - Need to bleed air.
Drive pump or hydraulic motor is damaged - Inspect and change as required.
Mechanical parts of drive system are damaged or worn - Inspect drive system and replace faulty parts.
| Hydraulics Troubleshooting |
Hydraulic system overheats
Hydraulic pressure is not correct - Adjust pressure as required.
Main relief valve improper adjustment or failure - Replace or set up the relief valve.
Hydraulic fluid contamination - Change hydraulic fluid.
Not enough hydraulic oil in the system - Fill the hydraulic system with oil.
Faulty hydraulic oil pump - Install new pump or repair it.
Boom won't lower or raise
Damaged lift controls - Change or repair.
Hydraulic pump malfunction - Change or repair hydraulic pump if required.
Hydraulic control valve malfunction - Install a new hydraulic valve or repair it.
Hydraulic cylinder failure - Repair or install a new lift cylinder.
Insufficient hydraulic fluid - Fill the system to proper hydraulic fluid level.
Bucket can't tilt
Damaged bucket controls - Check and repair as required.
Defective hydraulic pump - Repair or change pump if required.
Hydraulic control valve failure - Repair or change the valve.
Bucket cylinder is faulty - Repair or change cylinder.
Hydraulic oil is insufficient - Checking hydraulic oil level and add if necessary.
Boom or bucket moves slowly
Defective hydraulic pump - Flow-rate pump and change pump if necessary.
Leaking hydraulic cylinder - Cylinder seals need to be replaced.
Hydraulic oil is insufficient - Checking hydraulic oil level and add if necessary.
Faulty or incorrect setting hydraulic control valve - Repair or adjust properly.
Hydraulic pressure is low - Correct setting is required.
Jerky operation of the bucket or boom
Air in the hydraulic system - Bleed air from system.
Plugged hydraulic oil filter - Clean or change the filter.
Contaminated hydraulic fluid - The fluid must be changed.
Cylinder tube or rod is scored - Change defective component.
Hydraulic pump is excessively noisy
Low oil level or hydraulic leaks - Remedy hydraulic leakage or refill oil as necessary.
Hydraulic filter is clogged - Clean or change the filter.
Suction line is clogged - Service the suction line.
Air enters the pump - Air bleeding is required.
Pump components are worn out - Replace or rebuild the pump.
| Electrical Troubleshooting |
Battery cannot be charged
Corroded or loose electrical wire connections - Service or tighten cable connections.
Electrical terminal connectors are faulty - Install new terminal connectors.
Battery bad cell - Use a new battery.
Belt is loose or defective - Adjust belt tension or replace belt.
Starter cranks slow
Low battery capacity - Charge the battery.
Battery drains quickly - Service charging system or replace battery.
Corroded battery terminals or disconnected wires - Check cable connections and replace or service terminals.
Starter will not crank
Battery is discharged or worn - Charge or change the battery.
Battery cables are disconnected or improperly connected - Inspect cables and connect properly.
Battery voltage is low - Battery needs to be recharged.
Starter motor is defective - Repair or replace starter.
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| COMPACT TRACK LOADERS SPECIFICATIONS |