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Kubota M110 Troubleshooting
The
Kubota M110 is a 2-wheel drive or 4-wheel drive utility tractor. This model was
manufactured from 1998 to 2004. The Kubota M110 tractor is powered by 356 cu.in
(5.8 L) Kubota F5802-G 4-cycle 5-cylinder direct injection turbocharged
liquid-cooled diesel engine with a rated power of 110 hp (82 kW).
The Kubota M110 is fitted with 2 transmission options: Powershift
transmission with 16 forward and 16 reverse gears, and Powershift
Creeper transmission with 24 forward and 24 reverse gears. Max forward
speed - 20.3 mph (32.7 km/h), max reverse speed - 20.1 mph (32.5 km/h).
The open center hydraulic system includes a gear pump with a flow of
20.6 gal/min (78 l/min). The rear lift capacity is 5200 lbs (2360 kg) at
lift pin. The Kubota M110 was equipped with a power steering system,
hydraulic wet disc brakes, 13.6x24 front tires, and 16.9x38 rear tires.
The wheelbase is 98.2" (2490 mm) for 2WD models and 98.9" (2510 mm) for
4WD models. Compatible attachments for the tractor: Kubota LA1301 loader
with lift capacity to max height of 2865 lbs (1300 kg), and Kubota
LA1601 loader with lift capacity to max height of 3527 lbs (1600 kg).
| Engine Troubleshooting |
| Diesel won't start or hard to start |
| Fuel filter is dirty - Service or replace the filter |
| Closed fuel cock - Open fuel on-off cock to inject fuel |
| Air in fuel system - Air-bleed fuel system |
| Dirty or faulty injectors - Check fuel injectors and replace if required |
| Fuel injection pump malfunctioning - Rebuild or install a new injection pump |
| Bad compression - Inspect cylinder block and replace worn components |
| Engine stalls while running |
| Coolant temperature is low - Warm up the engine as required |
| Fuel lines leaking air - Tighten clamps, change faulty pipes |
| Irregular fuel injection - Adjust fuel injection timing |
| Fuel filter is clogged - Install new filter element |
| Clogged fuel injectors - Inspect fuel injectors and replace if necessary |
| Incorrect setting of fuel injection pump timing - Check the fuel injection pump timing setting |
| Dirty fuel filter element - Clean or replace the filter |
| Damaged or clogged injector nozzles - Install new set of properly balanced nozzles |
| Defective fuel injection pump - Replace or rebuild injection pump |
| Air cleaner clogging - Change or replace air cleaner element |
| Incorrect low idle speed adjustment - Correct low idle adjustment |
| Fuel injection pump damage - Repair or install new pump |
| Fuel injector nozzles are dirty - Service or replace injector nozzles |
| The valve clearance is not adjusted - Correct valve clearance needs to be set |
| Low coolant level - Fill the radiator to the required level. Any leaks must be repaired |
| Cooling system parts are defective or system is clogged - Change faulty components or flush the cooling system |
| Engine oil level low - Need to add engine oil |
| Broken fan belt or improper belt tension - Adjust belt tension correctly or change it |
| Thermostat fault - Thermostat needs to be replaced |
| Diesel engine is losing power |
| Dirty or damaged injectors - Test fuel injectors and change if necessary |
| Incorrect fuel injection pressure - Test fuel injection pressure and adjust it correctly |
| Air filter clogging - Service or replace the air filter |
| Clogged oil filter - Service or change engine oil filter element |
| Engine overloaded - Reduce the load or use a lower gear |
| Excessive valve clearance - Check and adjust as required |
| Incorrectly adjusted low idle speed - Correct the settings |
| Fuel pipes or hoses are dirty - Service fuel hoses and pipes |
| Engine low compression: Valves are defective or worn - Replace the valves |
| Fuel injection pump out of timing - Check the fuel injection pump timing setting |
| Fuel injector nozzles fault - Install new set of properly balanced nozzles |
| Insufficient engine oil - Check oil level and add oil as required |
| Engine not warmed up - Warm up the engine to required temperature |
| Main bearings or crankshaft failure - Crankshaft or bearings need to be replaced |
| Broken or defective piston rings - Replace the piston rings as required |
| Loose flywheel screws - Check the flywheel screws and tighten as required |
| Engine oil consumption is too high |
| External oil leaks: Seals or gaskets are defective - Worn parts need to be replaced |
| Oil viscosity is wrong - Use oil of correct viscosity |
| Stuck or worn piston rings - Replace piston rings |
| Worn valve stems and valve guides - Valves replacement required |
| Cylinder liners or pistons are worn - Check liners and pistons, change as required |
| Electrical System Troubleshooting |
| Battery is not charging |
| Battery is defective - Change the battery |
| Bad battery wiring harness - Inspect wiring for malfunctions, replace or repair |
| Corroded or loose battery terminals and cables - Cables and terminals must be tightened or cleaned |
| Defective belt or improperly adjusted belt tension - Adjust belt tension as required or change belt |
| Battery power is low - Low battery charging, charge as required |
| Battery is not holding charge - Service charging system or change battery |
| Battery cable harness damage - Check battery cables for damage, change or repair |
| Battery cables and terminals are loose or corroded - Tighten or service terminals and cables |
| Low battery power - Low battery charging, charge as required |
| Drained or defective battery - Charge or change the battery |
| Damaged starter motor - Starter needs to be replaced |
| Incorrectly connected or disconnected wires - Check battery wires and connect correctly |
| Transmission Troubleshooting |
| Difficulty shifting gears |
| Clutch is not adjusted or faulty - Clutch needs to be replaced or adjusted |
| Gear shift linkage is loose or broken - Change defective shift linkage |
| Bent or worn shift forks - Install new shift forks |
| Gearshift mechanism is worn out - Repair or replace worn components if required |
| Low transmission fluid pressure |
| Low transmission fluid level - Add transmission fluid as required |
| Transmission fluid filter is plugged (if fitted) - Clean or replace the transmission fluid filter |
| Relief valve is faulty - Replace the valve |
| Excessive transmission noise |
| Bearings are worn or cracked - Bearings need to be changed |
| Not enough fluid in transmission - Add transmission fluid as required |
| Transmission fluid contamination - Transmission fluid must be changed |
| Backlash is incorrect or gears are worn - Change the gears or adjust backlash correctly |
| Shift forks are worn or damaged - Change the shift forks |
| Transmission fluid leaking |
| Broken gaskets or seals - Install new components |
| Transmission case is cracked - Replace case or transmission assembly |
| Hydraulics Troubleshooting |
| Hydraulic system overheated |
| Improper pressure in hydraulic system - Adjust properly |
| Faulty or incorrectly adjusted main relief valve - Adjust or replace the relief valve |
| Hydraulic fluid is contaminated - Fill up with new hydraulic fluid |
| Hydraulic system sucks air - Check the pump seals, suction pipe, and fittings |
| Low hydraulic oil pressure |
| Lack of hydraulic oil - Add oil to the hydraulic system |
| Hydraulic fluid filter element is dirty - Clean the hydraulic filter element or replace if necessary |
| Hydraulic pump failure - Test the pump performance and change pump if required |
| Hydraulic control valve is not set properly or defective - Replace or adjust properly |
| Defective hydraulic cylinder - Check cylinder parts for wear or damage and replace if necessary |
| Hydraulic pipes are leaking - Identify leaks in the system and repair it |
| 3-point hitch does not raise or raises very slowly |
| Lack of hydraulic fluid - Add fluid to the hydraulic system |
| Cold fluid in hydraulic system - Wait for fluid to warm up |
| Hydraulic oil filter clogging - Clean or replace the hydraulic filter |
| Hydraulic pump is defective - Check the pump capacity and replace pump if required |
| Main relief valve incorrect adjustment or failure - Set up or change the relief valve |
| Defective or incorrect setting hydraulic control valve block - Replace or adjust properly |
| Hydraulic cylinder is not working - Inspect the hydraulic cylinder parts for damage or wear and replace if required |
| Loose or damaged suction line - Tighten or replace |
| Three-point hitch dropping is too slow or cannot be dropped |
| Defective or not adjusted hydraulic control valve - Replace or adjust properly |
| Hydraulic cylinder is broken - Check the hydraulic cylinder parts for damage or wear and replace if necessary |
| Lift arm shaft is damaged - Replace the shaft |
| Hitch has mechanical defects - Replace worn or defective hitch components |
| Hitch lowering or lifting is not smoothly |
| Air enters in hydraulic system - Check the pump seals, suction pipe, and fittings |
| Hydraulic fluid is dirty - Hydraulic fluid change required |
| Hydraulic pump is faulty - Flow-rate hydraulic pump and replace pump if necessary |
| Hydraulic spool valve is not set properly or defective - Adjust properly or replace |
| Hydraulic cylinder is broken - Inspect cylinder parts for wear or damage and replace if required |
| Steering System Troubleshooting |
| Steering wheel is very heavy to turn |
| Damaged or improperly fitted steering column - Fit the steering column properly or change it |
| Air leaks in steering system - Bleed the system of air |
| Improper toe-in adjustment - Adjust toe-in properly |
| Tires are not properly inflated - Inflate tires as required |
| Steering pump not working - Check the steering pump and replace if necessary |
| Power steering control valve has wear or malfunction - Check and replace as required |
| Faulty steering box parts - Repair power steering box |
| Not enough steering fluid - Fill up steering fluid to required level |
| Oil leaks in the steering system - Tighten the steering hose and pipe joints |
| Excessive steering wheel play |
| Steering column shaft or coupling is worn out - Replace defective component |
| Power steering control valve is worn or defective - Inspect and replace as required |
| Worn steering box parts - Change defective steering box components |
| Faulty steering pump - Repair or change steering pump |
| Worn or faulty steering tie-rod ends or linkage - Change failed component |
| Tractor pulls to left or right |
| Low tire pressure - Inflate the tires |
| Toe-in adjustment is incorrect - Check toe-in and correct |
| Faulty or worn steering tie-rod ends or linkage - Replace damaged part |
| Worn steering box components - Change defective steering box parts |
| Worn or damaged power steering control valve - Replace or repair steering valve as required |
| Worn or incorrectly adjusted or worn front hub bearings - Change or adjust the bearings properly |
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| Farm Tractors Technical Specifications |
