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Kubota M110X Troubleshooting

The Kubota M110X is a four-wheel drive row crop tractor from M-series. This model was manufactured between 2009 and 2014. The Kubota M110X tractor is powered by 230 cubic inches (3.8 L) Kubota V3800-TI-CRS 4-cycle 4-cylinder direct injection turbocharged diesel engine with a rated power of 110 hp (82 kW).

The Kubota M110X is fitted with 2 transmission options: Intelli-Shift partial powershift transmission with 16 forward and 16 reverse gears, and Intell-Shift Creeper transmission with 24 forward and 24 reverse gears. Max forward/reverse speed (travel/creeper): 21.4 mph (34.5 km/h) and 0.7 mph (1.1 km/h).

The open center hydraulic system includes a gear pump with fluid flow rate of 18.1 gpm (68.5 lpm). The hydraulic pressure is 196 bar (2845 psi). The Kubota M110X is equipped with a hydrostatic power steering, hydraulic wet disc brakes, 13.6R24 or 12.4x24 front tires, and 18.4R34 or 16.9x34 rear tires. The wheelbase is 95.9" (2430 mm). The tractor is compatible with a Kubota LA1953 loader with lift capacity to maximum height of 4300 lbs (1950 kg) and breakout force of 5802 lbs (2631 kg).

Engine Troubleshooting
Diesel won't start or hard to start
Fuel filter plugging - Clean the filter element
Fuel supply valve is closed - Open fuel supply valve
Air in fuel pipes - Bleed fuel pipes
Clogged fuel injectors - Clean or replace fuel injectors
Defective fuel injection pump - Rebuild or install a new injection pump
Bad compression - Check cylinder block and replace defective parts
Engine stalls while running
Engine is not fully warmed up - Normalize the temperature by warming up the engine
Fuel-line is leaking air - Retighten clamps, replace defective pipes
Irregular fuel injection - Adjust fuel injection timing
Fuel filter is dirty - Clean or change the filter
Fuel injectors are damaged or dirty - Change fuel injectors
Diesel engine stops after starting
Timing of fuel injection pump is wrong - Fuel injection pump timing adjustment needs to be corrected
Fuel filter clogging - Clean or replace the filter
Fuel injector nozzles are faulty - Install new set of properly balanced nozzles
Damaged fuel injection pump - Repair or change injection pump
Air cleaner is dirty - Replace cleaner or install new cleaner element
Engine stalls at idle
Low idle speed adjustment is incorrect - Normalize low idle speed
Fuel injection pump is defective - Rebuild or install a new injection pump
Fuel injector nozzles are faulty - Inspect injector nozzles and change if required
Improper valve clearance - Check and adjust
Engine is overheated
Engine has a lack of coolant - Add the coolant. Inspect the system for leaks
Cooling system components are damaged or system is dirty - Replace faulty parts or flush the cooling system
Engine oil level is low - Check and refill engine oil
Fan belt tension is unadjusted or belt is damaged - Adjust belt tension properly or replace it
Thermostat is defective - Check and replace if required
Engine power is too low
Fuel injectors are clogged or faulty - Service or change fuel injectors
Improper fuel injection pressure - Repair or replace injection pump
Air filter is clogged - Install new filter element or replace it
Oil filter is clogged - Replace or clean engine oil filter element
Engine is overloaded - Shift to lower gear or reduce the load
Valve clearance is out of adjustment - Adjust to proper valve clearance
Incorrect low idle speed adjustment - Correct the settings
Clogged fuel hoses or pipes - Fuel hoses and pipes must be clean
Engine low compression: Valves are broken or leaking - Have valves replaced
Engine knocks or noises
Fuel injection pump timing is incorrect - Check the fuel injection pump timing setting
Faulty fuel injector nozzles - Change or clean injector nozzles
Low engine oil level - Add oil to the engine crankcase
Engine is not fully warmed up - Warm up the engine
Crankshaft or main bearings failure - Need to install new components
Defective or broken piston rings - Piston rings replacement required
Loose flywheel screws - Check the flywheel screws and tighten as required
Engine oil consumption is too high
Oil leaks: Worn seals or gaskets - Replace defective parts
Improper oil viscosity - Use oil of correct viscosity
Damaged or seized piston rings - Have piston rings replaced
Worn valve guides and valve stems - Valves replacement required
Scuffed pistons or cylinder liners - Inspect liners and pistons, change as necessary

Electrical System Troubleshooting
Battery is not charging
Defective battery - Battery replacement required
Battery wiring harness damage - Inspect battery wiring for damage, replace or repair
Battery terminals and cables are loose or corroded - Terminals and cables need to be tightened or cleaned
Improper belt tension adjustment or damaged belt - Adjust belt tension properly or change belt
Starter cranks slow
Battery power is low - Low battery charging, charge as required
Battery does not hold charge - Service or replace the battery
Bad battery electrical wire harness - Check wires for malfunctions, repair or replace
Corroded or loose terminals and cables - Tighten or service terminals and cables
Starter motor won't turn
Battery voltage is low - Battery is drained, charge it
Discharged or faulty battery - Change or recharge battery
Starter motor is faulty - Repair or install a new starter
Wiring is improperly connected or disconnected - Need to reconnect the wiring properly

Transmission Troubleshooting
Hard shifting
Worn or incorrectly adjusted clutch - Adjust or replace the clutch
Damaged or loose gear shift linkage - Service or replace shift linkage
Shift forks are damaged or worn - Replace defective shift forks
Gear shifting mechanism is worn - Change worn components
Transmission fluid pressure is insufficient
Not enough oil in transmission - Fill up the transmission oil
Dirty transmission oil filter (if fitted) - Change or service the transmission oil filter
Damaged relief valve - Replace relief valve as required
Transmission is making noise
Bearings are worn or broken - Bearings need to be changed
Oil level is low - Check transmission oil level and add oil as required
Contaminated transmission oil - Change transmission oil
Defective gears or incorrect backlash - Change the gears or adjust backlash correctly
Shift forks are damaged or worn - Install new shift forks
Transmission fluid leakage
Seals or gaskets are damaged - Change defective gaskets or seal
Transmission case is cracked - Replace case or transmission assembly

Hydraulics Troubleshooting
Hydraulic system is overheated
Hydraulic system pressure is unadjusted - Adjust the pressure as required
Misadjusted or defective main relief valve - Set up or change the relief valve
Hydraulic oil is contaminated - Fill up with fresh hydraulic oil
Air in hydraulic system - Check the pump seals, suction pipe, and fittings
Low hydraulic system pressure
Not enough hydraulic oil in the system - Check oil level and add hydraulic oil as required
Hydraulic fluid filter is dirty - Service or replace the hydraulic filter
Faulty hydraulic oil pump - Test pump flow rate and replace pump if required
Hydraulic spool valve block is defective or set improper - Replace or set properly
Hydraulic cylinder malfunction - Inspect the hydraulic cylinder parts for damage or wear and replace if required
Leakage in hydraulic pipes - Identify leaks in the system and repair it
Hitch won't lift or lifts slowly
Lack of hydraulic fluid - Fill the hydraulic system with oil
Hydraulic oil is too cold - Allow oil to warm
Hydraulic oil filter clogging - Change hydraulic filter element or clean if necessary
Defective hydraulic pump - 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 not adjusted hydraulic spool valve - Set properly or replace
Broken hydraulic cylinder - Inspect cylinder components for wear or damage and change if required
Broken or disconnected suction line - Connect or replace
Hitch does not lower or lowers very slowly
Hydraulic control valve is not set properly or defective - Replace or adjust correctly
Hydraulic cylinder malfunction - Check the hydraulic cylinder parts for damage or wear and replace if necessary
Hitch cross shaft is worn - Change the shaft
Internal mechanical failure of the hitch - Replace worn or defective hitch parts
Hitch jerks when lower or lift
Air trapped in the hydraulic system - Check the pump seals, suction pipe, and fittings
Hydraulic fluid is dirty - Hydraulic fluid change required
Defective hydraulic pump - Test pump flow rate and replace pump if required
Defective or incorrect setting hydraulic spool valve block - Set properly or replace
Hydraulic cylinder is defective - Inspect the hydraulic cylinder parts for damage or wear and replace if required

Steering System Troubleshooting
Difficult steering
Defective or incorrectly installed steering column - Reinstall the steering column or change it
Aeration in steering system - Need to bleed air
Improper toe-in adjustment - Adjust toe-in wheels properly
Tires are not correctly inflated - Inflate tires as necessary
Damaged hydraulic steering pump - Install a new steering pump
Worn or defective hydrostatic steering unit - Repair or change the steering unit
Worn or stuck relief valve - Service or replace the relief valve
Insufficient steering oil - Need to add steering oil
Oil leaks in the steering system - Tighten joints of hydraulic pipes and hoses in steering system
Excessive play in steering
Steering column coupling or shaft is worn - Replace faulty part
Faulty or worn hydrostatic steering unit - Change or repair steering unit if required
Steering pump stopped working - Repair or change steering pump
Steering tie-rod ends or linkage are defective - Replace failed part
Tractor pulls to right or left
Front tires are worn out - Install new tires
Incorrect toe-in - Adjust toe-in properly
Worn or faulty steering tie-rod ends or linkage - Change failed component
Faulty or worn hydrostatic steering unit - Inspect and change as required
Faulty steering cylinder - Repair or change steering cylinder
Incorrectly adjusted or damaged front hub bearings - Adjust correctly or replace bearings



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