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Kubota L1361 Troubleshooting
The
Kubota L1361 is a two-wheel drive or four-wheel drive compact utility tractor
from L1 series. This model was manufactured between 2017 to 2020. The Kubota
L1361 tractor is powered by 111.4 cu.in (1.8 L) Kubota D1803-M-E2 4-cycle
vertical 3-cylinder indirect injection water-cooled diesel engine with a max
output power of 35.4 Hp (26.2 kW).
The Kubota L1361 is fitted with 2 types of transmission. 1st type: 8x4
gear transmission. 2nd type: 3-range hydrostatic transmission with
infinite forward and reverse gears.
Max. travel speed (forward/reverse): 15.4 mph (24.6 km/h) and 13.8 mph
(22.1 km/h). The open center hydraulic system includes a gear pump with
a flow rate of 7.5 gpm (28.3 lpm). The hydraulic pressure is 2275 psi
(157 bar). The Kubota L1361 is equipped with 7.00x16 front tyres and
11.2x24 rear tyres. The wheelbase is 63.6" (1610 mm). The tractor is
compatible with a Kubota LA525 EC front end loader with lift capacity to
full height of 966 lbs (439 kg).
| Engine Troubleshooting |
| Engine hard starting or not starting |
| Dirty fuel filter element - Change filter element |
| Fuel supply valve is closed - Open fuel supply valve |
| Fuel lines leaking air - Tighten clamps, change faulty pipes |
| Fuel injectors are defective or dirty - Test fuel injectors and change if necessary |
| Fuel injection pump is not operating properly - Rebuild or replace pump |
| Poor cylinder compression - Check and replace worn parts |
| Diesel shuts off during operation |
| Engine is not preheated - Warm up the engine to required temperature |
| Air in fuel pipes - Bleed fuel pipes |
| Improper fuel injection - Fuel injection settings required |
| Fuel filter is clogged - Service the filter |
| Fuel injectors are defective or dirty - Change fuel injectors |
| Diesel starts and then stalls |
| Fuel injection pump timing is incorrect - Check and correct adjustments |
| Fuel filter plugging - Filter maintenance required |
| Damaged or clogged injector nozzles - Change injector nozzles |
| Defective fuel injection pump - Repair or install new pump |
| Air cleaner is dirty - Install new cleaner element or replace it |
| Too low idle RPM - Test and adjust |
| Faulty fuel injection pump - Install a new pump or rebuild |
| Fuel injector nozzles are dirty or defective - Test injector nozzles and replace as required |
| Valve clearance is out of adjustment - Check and adjust |
| Insufficient coolant fluid - The cooling system needs to be refilled. Check radiator and hoses for leaks |
| Cooling system parts are defective or system is clogged - Replace faulty parts or service cooling system |
| Lack of engine oil - Need to add engine oil |
| Fan belt tension is incorrect or belt is broken - Adjust properly or replace the belt |
| Defective thermostat - Check and change if necessary |
| Fuel injectors are defective or dirty - Clean or replace fuel injectors |
| Uneven fuel injection pressure - Repair or replace injection pump |
| Clogged air filter element - Change or replace air filter element |
| Dirty oil filter element - Clean or change engine oil filter |
| Engine overloaded - Reduce load on the engine |
| Excessive valve clearance - Check and adjust as required |
| Low idle speed adjustment is incorrect - Adjustment required |
| Fuel hoses or pipes clogging - Service fuel pipes and hoses |
| Engine compression is low: Leaking or faulty valves - Replace the valves as required |
| Unadjusted fuel injection pump timing - Correct injection timing |
| Fuel injector nozzles are damaged - Replace fuel injector nozzles |
| Not enough engine oil - Fill up the oil to required level |
| Low coolant temperature - Warm up the engine to required temperature |
| Main bearings or crankshaft failure - Replace crankshaft or bearings |
| Worn or broken piston rings - Piston rings replacement required |
| Loose flywheel screws - Check the flywheel screws and tighten as required |
| Engine using too much oil |
| External oil leaks: Damaged seals or gaskets - Defective components must be replaced |
| Crankcase oil too light - Fill up with the proper oil viscosity |
| Piston rings are stuck or broken - Change the piston rings as required |
| Valve guides and stems are worn - Valves replacement required |
| Pistons or cylinder liners are worn - Inspect pistons and liners, change as required |
| Electrical System Troubleshooting |
| Battery does not charge |
| Worn-out battery - Battery change required |
| Bad battery electrical wire harness - Check wires for malfunctions, repair or replace |
| Battery terminals and cables are corroded or loose - Terminals and cables need to be tightened or cleaned |
| Belt slipping or wrong belt tension adjustment - Change belt or correctly adjust belt tension |
| Battery voltage is low - Battery is drained, charge it |
| Battery runs out quickly - Battery needs service or replacement |
| Battery wiring harness failure - Inspect electrical cables for defects, repair or replace |
| Corroded or loose battery cables and terminals - Tighten or service cables and terminals |
| Battery voltage is low - Charge the battery |
| Drained or worn battery - Change or recharge battery |
| Starter motor is faulty - Starter should be changed |
| Disconnected or incorrectly connected cables - Inspect battery cables and connect correctly |
| Transmission Troubleshooting |
| Gears are hard to shift |
| Worn or incorrectly adjusted clutch - Clutch adjustment or replacement required |
| Stuck or damaged gear shift linkage - Replace or repair the shift linkage |
| Shift forks are worn or damaged - Install new shift forks |
| Gearshift mechanism is worn out - Repair or replace worn components if required |
| Low transmission fluid pressure |
| Oil level is low - Add transmission oil as required |
| Transmission fluid filter element is dirty (if fitted) - Change or clean the transmission fluid filter |
| Relief valve sticking - Install a new valve |
| Excessive transmission noise |
| Cracked or worn bearings - Bearings need to be changed |
| Insufficient fluid supply - Add transmission fluid as required |
| Contaminated transmission fluid - Transmission fluid must be changed |
| Backlash is incorrect or gears are worn - Change the gears or adjust backlash correctly |
| Bent or worn shift forks - Install new shift forks |
| Gaskets or seals are defective Seals and gaskets replacement required |
| Transmission case is cracked - Replace case or transmission assembly |
| Hydrostatic Transmission Troubleshooting |
| Excessive HST transmission noise |
| Insufficient transmission fluid level or contaminated fluid - Change fluid or top up to proper level |
| Speed control rod linkage is worn or not adjusted - Adjust or replace control rod linkage |
| Relief valve is faulty - Install a new relief valve |
| Excessive transmission load - The load should be reduced |
| Defective or worn components of hydrostatic transmission - Replace or repair worn components |
| Low transmission fluid level - Add transmission fluid as required |
| Transmission oil filter clogging - Replace or service transmission oil filter |
| Cooling components are damaged or clogged - Inspect all cooling components and service or change if necessary |
| Transmission is under excessive load - Load needs to be reduced |
| Fluid level is low - Fill the transmission housing with fluid |
| Charge pressure is too low - Test charge pressure |
| Relief valve is worn or damaged - Change relief valve |
| Seals or gaskets are damaged - Change defective seal or gaskets |
| High pressure inside the transmission case - Replace defective components |
| Oil return pipe is clogged - Check pipe and clean if necessary |
| Hydraulics Troubleshooting |
| Hydraulic system is overheated |
| Incorrect hydraulic pressure adjustments - Adjust correctly |
| Main relief valve is defective or unadjusted - Adjust or replace the relief valve |
| Dirty hydraulic oil - The oil must be changed |
| Air enters in hydraulic system - Check the suction line, pump seals, and fittings |
| Low hydraulic fluid pressure |
| Lack of hydraulic oil - Fill up the hydraulic oil |
| Hydraulic fluid filter element clogging - Service or replace the hydraulic filter |
| Faulty hydraulic oil pump - Test the pump flow rate and install new pump if required |
| Hydraulic control valve block is not set properly or defective - Set properly or replace |
| Defective hydraulic cylinder - Inspect cylinder components for wear or damage and change if required |
| Hydraulic piping leaks - Find leaks in the system and fix it |
| 3-point hitch lifts too slowly or can't lift |
| Not enough hydraulic oil in the system - Fill up the hydraulic oil |
| Cold oil in hydraulic system - Wait for oil to warm up |
| Hydraulic fluid filter is dirty - Replace filter element or clean if required |
| Hydraulic pump is defective - Test the pump flow rate and install new pump if required |
| Unadjusted or defective main relief valve - Set up or change the relief valve |
| Hydraulic spool valve block is not set properly or defective - Replace or set properly |
| Hydraulic cylinder is defective - Inspect cylinder components for damage or wear and change if required |
| Broken or loose suction line - Retighten or change |
| 3-point hitch won't drop or drops slowly |
| Hydraulic spool valve is not set properly or defective - Adjust correctly or change |
| Defective hydraulic cylinder - Check cylinder parts for wear or damage and replace if necessary |
| Worn lift arm shaft - Install a new shaft |
| The hitch is defective if there is internal mechanical damage - Change worn or defective hitch components |
| Hitch lowering or lifting is not smoothly |
| Aeration in hydraulic system - Inspect the pump seals, suction line, and fittings |
| Dirty hydraulic fluid - The fluid must be changed |
| Defective hydraulic pump - Test the pump flow rate and change pump if required |
| Hydraulic spool valve is defective or set improper - Adjust correctly or change |
| Hydraulic cylinder failure - Check cylinder parts for wear or damage and replace if necessary |
| Steering System Troubleshooting |
| Steering wheel is difficult to turn |
| Damaged or improperly fitted steering column - Fit the steering column properly or change it |
| Air enters in steering system - Bleed the steering system |
| Incorrect toe-in adjustment - Adjust toe-in wheels properly |
| Tires are incorrectly inflated - Inflate as required |
| Steering pump not working - Check the hydraulic steering pump and change if necessary |
| Worn or defective power steering valve assembly - Repair or replace the steering valve |
| Worn steering box components - Repair power steering box |
| Lack of steering fluid - Need to add steering oil |
| Steering system has oil leaks - Tighten the steering hose and pipe joints |
| Excessive free play of steering wheel |
| Steering column shaft or coupling is worn out - Change faulty component |
| Power steering valve assembly is defective or worn - Repair or replace the steering valve |
| Worn steering box components - Repair power steering box |
| Defective hydraulic steering pump - Steering pump needs to be replaced or repaired |
| Steering linkage or tie-rod ends are worn - Replace damaged part |
| Front wheels wander to right or left |
| Low tire pressure - Inflate the tires |
| Improper toe-in adjustment - Adjust toe-in wheels properly |
| Faulty or worn steering tie-rod ends or linkage - Replace damaged part |
| Worn steering box components - Replace defective components of power steering box |
| Worn or damaged power steering valve assembly - Repair or replace the steering valve |
| Front hub bearings are defective or improperly adjusted - Replace or adjust the bearings correctly |
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| Farm Tractors Technical Specifications |
