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Kubota L3130 Troubleshooting
The
Kubota L3130 is a L30 series compact utility tractor. This model was
manufactured from 2003 to 2007. The components of Kubota L3130 powerline system: Kubota D1503 4-cycle vertical 4-cylinder indirect injection diesel engine and
FST sync shuttle fully synchronized transmission with 8 forward and 8 reverse
gears.
A 91.5 cubic inches diesel engine power rating is 31 Hp (23 kW) and max.
torque is 103 Nm (76 lb-ft) at 1800 rpm. The maximum forward speed - 19.2
mph (31 km/h), max. reverse speed - 16.0 mph (25.8 km/h). The open center
hydraulic system includes a gear pump with a flow of 31.5 liters per
minute (8.3 gpm).
The hydraulic pressure is 177 bar (2560 psi). The 4-wheel drive models are
equipped with 7.2x16 front tyres and 12.4x24 rear tyres. The 6.0x16 front
tyres and 12.4x24 rear tyres fit two wheel drive tractors. The wheelbase
is 71.3" (1810 mm) for 2WD (4x2) tractors and 71.1" (1800 mm) for 4WD (4x4)
tractors. Compatible front end loaders for the Kubota L3130 tractor:
LA723 loader with a lift capacity to max height of 1870 lbs (848 kg), or
LA513 loader with a lift capacity to max height of 1345 lbs (610 kg).
| Engine Troubleshooting |
| Engine will not start or difficult to start |
| Fuel filter plugging - Service or replace the filter |
| No fuel supply from the tank - Open the fuel supply valve |
| Air trapped in fuel system - Bleed air |
| Fuel injectors are clogged or faulty - Service or change fuel injectors |
| Fuel injection pump is damaged - Replace injection pump or repair it |
| Engine has bad compression - Inspect and replace faulty parts |
| Engine shuts off unexpectedly while running |
| Engine is cold - Normalize the temperature by warming up the engine |
| Air trapped in fuel system - Bleed air |
| Uneven fuel injections - Repair or adjustment |
| Dirty fuel filter element - Clean the filter element |
| Clogged fuel injectors - Inspect fuel injectors and replace if necessary |
| Diesel engine stalls after starting |
| Timing of fuel injection pump is not adjusted - Fuel pump timing settings need to be corrected |
| Fuel filter plugging - Clean or replace the filter |
| Fuel injector nozzles are dirty or defective - Service or replace injector nozzles |
| Fuel injection pump failure - Rebuild or replace pump |
| Clogged air cleaner element - Replace cleaner or install new cleaner element |
| Low idle speed adjustment is incorrect - Adjust the low idle speed |
| Fuel injection pump damage - Repair or replace injection pump |
| Damaged or clogged injector nozzles - Install new set of properly balanced nozzles |
| The valve clearance is not adjusted - Have it adjusted |
| Engine has a lack of coolant - Fill radiator to proper level. Check and repair damage to the cooling system if required |
| Cooling system parts are failed or system is clogged - Change faulty components or service cooling system |
| Engine oil level is low - Checking oil level and add if necessary |
| Fan belt is defective or belt tension is not adjusted - Adjust properly or change the belt |
| Thermostat malfunction - Check and change if necessary |
| Engine power is insufficient |
| Fuel injectors are clogged or faulty - Service or change fuel injectors |
| Improper fuel injection pressure - Test fuel injection pressure and adjust it correctly |
| Dirty air filter - Replace or service air filter element |
| Dirty oil filter - Clean or change engine oil filter |
| Engine overload - Reduce engine load |
| The valve clearance is incorrect - Have it adjusted |
| Wrong adjustment of low idle speed - Correct low idle adjustment |
| Dirty fuel hoses or pipes - Clean fuel pipes and hoses |
| Engine compression too low: Leaking or faulty valves - Replace the valves as required |
| Timing of fuel injection pump is not adjusted - Fuel pump timing settings need to be corrected |
| Fuel injector nozzles are damaged or dirty - Install new set of properly balanced nozzles |
| Engine oil level is insufficient - Fill the crankcase with engine oil |
| Engine is cold - Warm up to required temperature |
| Crankshaft or main bearings failure - Change or repair worn components |
| Worn or broken piston rings - Replace piston rings |
| Loose flywheel bolts - Inspect flywheel bolts and tighten properly |
| External oil leaks: Damaged gaskets or seals - To repair leaks, replace worn parts |
| Crankcase oil too light - Fill up with the proper oil viscosity |
| Worn or broken piston rings - Change the piston rings as required |
| Valve guides or stems are damaged - Need to replace the valves |
| Cylinder liners or pistons are scuffed - Check pistons and liners, install new parts as required |
| Electrical System Troubleshooting |
| Battery does not charge |
| Faulty cell in battery - Change the battery |
| Damaged battery wiring harness - Inspect wiring for damage, replace or repair |
| Loose or corroded terminals and cables - Service or tighten battery cables and terminals |
| Incorrect belt tension adjustment or worn belt - Install new belt or adjust belt tension as required |
| Low battery capacity - Charge the battery |
| Battery won’t hold charge - Service battery or replace it |
| Bad battery wiring harness - Inspect wiring for malfunctions, replace or repair |
| Corroded or loose terminals and cables - Service or tighten battery terminals and cables |
| Low battery capacity - Low battery charging, charge as required |
| Drained or defective battery - Recharge or replace battery |
| Starter motor failing - Repair or install a new starter |
| Wiring is improperly connected or disconnected - Need to reconnect the wiring properly |
| Transmission Troubleshooting |
| Hard shifts |
| Failure or improper clutch adjustment - Replace or adjust clutch |
| Stuck or damaged gear shift linkage - Change or repair shift linkage |
| Worn or damaged shift forks - Shift forks need to be changed |
| Gearshift mechanism failure - Change or repair failed components |
| Insufficient transmission oil pressure |
| Lack of transmission fluid supply - Fill the transmission housing with fluid |
| Transmission oil filter is plugged (if fitted) - Change or clean the transmission oil filter |
| Faulty relief valve - Install a new relief valve |
| Broken or worn bearings - Change the bearings |
| Lack of transmission fluid supply - Fill the transmission housing with fluid |
| Contaminated transmission oil - Fill up with fresh transmission oil |
| Worn gears or improper backlash - Replace gears or set backlash properly |
| Bent or worn shift forks - Shift forks need to be replaced |
| Worn gaskets or seals - Replace worn seal or gaskets |
| Cracked transmission housing - Housing needs to be replaced |
| Hydraulics Troubleshooting |
| Hydraulic system overheats |
| System pressure has not been adjusted correctly - Pressure needs to be adjust correctly |
| Unadjusted or defective main relief valve - Replace or set up the relief valve |
| Contaminated hydraulic oil - Change hydraulic oil |
| Air leaks in hydraulic system - Inspect the pump seals, suction pipe, and fittings |
| Hydraulic fluid pressure too low |
| Not enough hydraulic oil in the system - Add oil to the hydraulic system |
| Hydraulic fluid filter element clogging - Service the hydraulic filter or change if required |
| Damaged hydraulic oil pump - Check pump capacity and change if necessary |
| Hydraulic control valve is not set properly or defective - Adjust correctly or replace |
| Defective hydraulic cylinder - Check cylinder components for damage or wear and change if necessary |
| Hydraulic lines are leaking - Detect leaks in hydraulic system and repair it |
| Hitch fails to lift or lifts slowly |
| Not enough hydraulic oil in the system - Fill the hydraulic system with oil |
| Cold fluid in hydraulic system - Wait for fluid to warm up |
| Hydraulic fluid filter element clogging - Hydraulic filter maintenance required |
| Hydraulic pump malfunction - Test the pump flow rate and change pump if required |
| Main relief valve is faulty or misadjusted - Adjust or replace the relief valve |
| Defective or incorrect setting hydraulic spool valve block - Adjust properly or change |
| Broken hydraulic cylinder - Inspect the hydraulic cylinder components for damage or wear and change if required |
| Damaged or loose hydraulic suction line - Tighten or change it |
| 3-point hitch drops slowly or won't drop |
| Defective or not adjusted hydraulic control valve - Change or adjust properly |
| Defective hydraulic cylinder - Check the hydraulic cylinder parts for damage or wear and replace if necessary |
| Hitch rock shaft is damaged - Replace the shaft |
| Hitch has mechanical defects - Change damaged or worn hitch parts |
| Hitch raises or lowers not smoothly |
| Aeration in hydraulic system - Inspect the pump seals, suction pipe, and fittings |
| Contaminated hydraulic oil - Change hydraulic oil |
| Hydraulic pump malfunction - Test the pump flow rate and install new pump if required |
| Hydraulic spool valve block is not set properly or defective - Change or adjust properly |
| Faulty hydraulic cylinder - Inspect the hydraulic cylinder components for damage or wear and change if required |
| Steering System Troubleshooting |
| Difficult steering |
| Steering column is damaged or improperly mounted - Replace the steering column or mount it properly |
| Air leaks in steering system - Bleed the steering system |
| Improper toe-in - Check and adjust toe-in |
| Tires are improperly inflated - Inflate as necessary |
| Steering pump not working - Repair or change steering pump |
| Worn or damaged hydrostatic steering unit - Repair or replace the steering unit |
| Defective or stuck relief valve - Replace or service relief valve |
| Low steering fluid level - Fill the steering system with fluid |
| Oil leaks in the steering system - Retighten steering pipe and hose connections |
| Steering wheel has too much free-play |
| Steering column coupling or shaft is worn - Replace defective part |
| Hydrostatic steering unit is defective or worn - Inspect and replace as required |
| Hydraulic steering pump is defective - Repair or change steering pump |
| Steering tie-rod ends or linkage are worn - Replace failed component |
| Front wheels wander to left or right |
| Tires are not properly inflated - Inflate tires as required |
| Not adjusted toe-in - Check and adjust toe-in |
| Worn or faulty steering linkage or tie-rod ends - Replace failed part |
| Hydrostatic steering unit is worn or defective - Repair or change the steering unit |
| Steering cylinder failure - Replace or repair hydraulic steering cylinder |
| Front hub bearings are damaged or incorrectly adjusted - Replace the bearings or adjust it properly |
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| Farm Tractors Technical Specifications |
