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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
Engine stalls at idle
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
Engine overheats
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
Diesel power loss
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
Engine knocking or noise
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
Starter motor turns slow
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
Starter is not working
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
Transmission oil leaks
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
Transmission overheating
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
Low power
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
Transmission oil leaks
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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JD 1026R JD 3650 JD 6400 JD 7810
FORD 1320 FORD 2810 FORD 3930 FORD 5600
MF 250 MF 690 MF 3060 MF 6180
NH TC48DA NH M100 NH T7550 NH 8560
CASE IH 495 CASE IH 1255XL CASE IH 2140 CASE IH 2294