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Kubota M9000 Troubleshooting
The
Kubota M9000 is a M-Series utility tractor. This model was manufactured from 1997 to
2005. The Kubota M9000 driveline components: A V3300-TI-E vertical four-cylinder
naturally aspirated diesel engine and synchronized shuttle transmission with 8
forward and 8 reverse gears, or 8-speed power shuttle transmission.
A 3.3L engine output rating is 92.1 Hp (68.7 kW) at 2600 rpm. Max.
forward and reverse speed - 20.7 mph (33.3 kph). The open center
hydraulic system includes a gear pump with fluid flow rate of 23.1 gpm
(87.4 lpm). The main relief pressure is 2825 psi (180 bar). The rear lift
capacity is 4630 lbs at 600 mm behind pin.
The 4-wheel drive models are equipped with 12.4x24 front tyres and
18.4x30 rear tyres. The 7.50x18 front tyres and 16.9x28 rear tyres fit two
wheel drive tractors. The wheelbase is 88.6 inches (2250 mm). Compatible
front end loaders for the Kubota M9000 tractor: LA1251 loader with a
lift capacity to max height of 2755 lbs (1250 kg), or LA1301 loader with
a lift capacity to max height of 2750 lbs (1248 kg).
Engine Troubleshooting |
Engine won't start or difficult to start |
Fuel filter is dirty - Change filter element |
Closed fuel supply valve - Open supply valve to inject fuel |
Air trapped in fuel system - Bleed air |
Fuel injectors are damaged or dirty - Clean or replace fuel injectors |
Damaged fuel injection pump - Repair or change injection pump |
Low compression - Inspect cylinder block and change damaged parts |
Engine stalls during operation |
Coolant temperature is low - Normalize the temperature by warming up the engine |
Air in fuel lines - Bleed fuel lines |
Bad fuel injection - Check and adjust |
Dirty fuel filter element - Filter maintenance required |
Fuel injectors are defective or dirty - Service or change fuel injectors |
Diesel starts and immediately stops |
Timing of fuel injection pump is wrong - Adjust the fuel injection pump timing correctly |
Fuel filter plugging - Change filter element |
Dirty or defective injector nozzles - Service or replace injector nozzles |
Fuel injection pump malfunction - Replace or repair injection pump |
Air cleaner element is clogged - Change or service air cleaner element |
Too low idle RPM - Correct low idle adjustment |
Damaged fuel injection pump - Replace or repair injection pump |
Fuel injector nozzles are faulty - Service or replace injector nozzles |
Valve clearance is wrong - Adjust valve clearance |
Low engine coolant - Fill radiator to proper level. Check for coolant leaks |
Cooling system parts are damaged or system is dirty - Service the cooling system or replace faulty components |
Engine oil level low - Add oil to the engine crankcase |
Unadjusted fan belt tension or worn belt - Adjust properly or replace the belt |
Defective or wrong type of thermostat - Check thermostat, replace if necessary |
Clogged or damaged injectors - Test fuel injectors and change if necessary |
Uneven fuel injection pressure - Adjust to correct pressure |
Air filter element clogging - Install new filter element or replace it |
Oil filter is clogged - Change or clean engine oil filter element |
Diesel engine is overloaded - Reduce load or shift to lower gear |
Improper valve clearance - Have it adjusted |
Incorrect low idle setting - Need to adjust idle speed |
Clogged fuel hoses or pipes - Clean fuel pipes and hoses |
Engine low compression: Worn or damaged valves - Install new valves |
Unadjusted fuel injection pump timing - Check the fuel injection pump timing setting |
Dirty or defective injector nozzles - Service or replace injector nozzles |
Engine oil level is low - Need to add engine oil |
Engine not warmed up - Warm up the engine to required temperature |
Worn main bearings or crankshaft - Worn parts replacement required |
Piston rings are defective or broken - Replace the piston rings as required |
Loose flywheel screws - Check the flywheel screws and tighten as required |
Diesel engine consuming too much oil |
Oil leaks: Worn seals or gaskets - Defective components must be replaced |
Oil viscosity is wrong - Use oil of proper viscosity |
Piston rings are stuck or broken - Piston rings need to be replaced |
Valve guides or stems are damaged - Replace defective valves |
Scuffed cylinder liners or pistons - Check liners and pistons, change as required |
Electrical System Troubleshooting |
Battery won’t charge |
Battery is defective - Battery change required |
Bad battery electrical wire harness - Check wires for malfunctions, repair or replace |
Battery terminals and cables are loose or corroded - Clean or tighten cables and terminals |
Belt wear or improper belt tension adjustment - Adjust belt tension as required or replace belt |
Low battery capacity - Charge the battery |
Battery discharges quickly - Service or replace the battery |
Damaged battery cable harness - Check electrical cables for damage, repair or replace |
Corroded or loose terminals and cables - Clean or tighten cables and terminals |
Battery voltage is low - Charge the battery |
Discharged or faulty battery - Recharge or replace battery |
Defective starter motor - Change or repair starter |
Wiring is improperly connected or disconnected - Need to reconnect the wiring properly |
Transmission Troubleshooting |
Hard to shift gears |
Worn or misadjusted clutch - Adjust correctly or replace |
Stuck or damaged gear shift linkage - Service or change the shift linkage |
Worn or damaged shift forks - Replace defective shift forks |
Gear shifting mechanism is worn - Change worn components |
Low transmission fluid pressure |
Insufficient fluid supply - Check transmission fluid level and add it as required |
Clogged transmission oil filter (if equipped) - Change or clean the transmission oil filter |
Damaged relief valve - Replace the valve |
Transmission is excessively noisy |
Broken or worn bearings - Change the bearings |
Not enough fluid in transmission - Fill the transmission housing with fluid |
Dirty transmission oil - Change transmission oil |
Gears are worn or backlash is improper - Replace gears or set backlash correctly |
Shift forks are worn or damaged - Replace the shift forks |
Transmission fluid leakage |
Gaskets or seals are broken - Install new gaskets or seal |
Cracked transmission housing - Housing needs to be replaced |
Hydraulics Troubleshooting |
Excessive hydraulic system heat |
System pressure has not been adjusted correctly - Pressure needs to be adjust correctly |
Main relief valve failure or incorrect setting - Adjust relief valve or change if required |
Contaminated hydraulic fluid - Change hydraulic fluid |
Air in hydraulic system - Inspect the suction line, pump seals, and fittings |
Hydraulic oil pressure is low |
Lack of hydraulic oil - Add oil to the hydraulic system |
Hydraulic oil filter element is dirty - Clean or change hydraulic filter |
Hydraulic pump is faulty - Test pump performance and replace pump if necessary |
Hydraulic control valve is faulty or out of adjustment - Set correctly or replace |
Defective hydraulic cylinder - Check cylinder parts for wear or damage and replace if necessary |
Hydraulic pipes are leaking - Detect leaks in the system and fix it |
3-point hitch does not raise or raises very slowly |
Hydraulic oil level is low - Add oil to the hydraulic system |
Cold hydraulic fluid - Warm up the fluid |
Dirty hydraulic oil filter - Clean the hydraulic filter element or replace if necessary |
Damaged hydraulic oil pump - Test the pump performance and change pump if required |
Defective or misadjusted main relief valve - Adjust or replace the relief valve |
Hydraulic control valve is not set properly or defective - Adjust correctly or replace |
Defective hydraulic cylinder - Inspect cylinder components for damage or wear and change if required |
Damaged or disconnected suction pipe - Connect or replace |
Hitch can't drop or drops too slowly |
Hydraulic spool valve block is not set properly or defective - Change or adjust correctly |
Hydraulic cylinder failure - Inspect the hydraulic cylinder parts for damage or wear and replace if required |
Worn lift arm shaft - Install a new shaft |
The hitch is defective if there is internal mechanical damage - Replace worn or defective hitch parts |
Hitch jerks when drop or lift |
Aeration in hydraulic system - Inspect the suction pipe, fittings, and pump seals |
Dirty hydraulic fluid - The fluid must be changed |
Defective hydraulic pump - Flow-rate pump and change pump if necessary |
Hydraulic spool valve is faulty or out of adjustment - Adjust properly or replace |
Hydraulic cylinder is defective - Inspect cylinder components for damage or wear and change if required |
Steering System Troubleshooting |
Difficult steering |
Steering column is worn or improperly fitted - Refit properly or change the steering column |
Air enters in steering system - Need to bleed air |
Not adjusted toe-in - Adjust toe-in correctly |
Tires are not properly inflated - Inflate tires as required |
Steering pump stopped working - Check the steering pump and replace if necessary |
Hydrostatic steering unit is worn or defective - Check and replace as required |
Relief valve malfunction or sticking - Replace or service relief valve |
Steering fluid level is low - Check fluid level and add steering fluid as required |
Steering system oil leak - Retighten the connections of the hydraulic steering lines and hoses |
Excessive play in steering |
Steering column shaft or coupling is worn out - Change faulty component |
Damaged or worn hydrostatic steering unit - Inspect and replace as required |
Steering pump failure - Steering pump needs to be replaced or repaired |
Steering linkage or tie-rod ends are worn - Change failed component |
Tractor pulls to left or right |
Tires are incorrectly inflated - Inflate as required |
Incorrect toe-in - Check toe-in and correct |
Worn or faulty steering tie-rod ends or linkage - Change damaged part |
Damaged or worn hydrostatic steering unit - Change or repair steering unit if required |
Steering cylinder is worn - Repair or replace steering cylinder |
Improperly adjusted or worn front hub bearings - Adjust correctly or install new bearings |
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Farm Tractors Technical Specifications |