Specifications, Service and Repair of Farm and Lawn Tractors

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Kubota M108S Problems

Recently I discovered a failure with my Kubota M108S. Diesel will not rotate. Explain me what is the probable issue?

You used an incorrect type of fuel. High-pressure fuel pump is damaged. Inspect and refit. Incorrect fuel injection pump timing. Adjustment required.

M108S tractor damages. Insufficient engine power. How can I fix an issue?

The third ring is fitted upside down. Refit it, with the ring face marked (up) upward. Worn cylinder bore.

Tell me what is damage if diesel engine runs irregularly?

Air in fuel supply system - Bleed air. Piston seizing. Check and replace it.

M108S tractor trouble. Transmission shift hard at low speeds. What's the reason?

Clutch pedal not fully depressed. Loose shifter housing bolts.

Somebody help me why my steering wheel rotates without opposition? What should I do for troubleshooting?

Low oil index - Pour completely. Steering cylinder has damage - Perform repair. The steering pump is defective - Check the steering pump.

I acquired a Kubota M108S in november. Today there is malfunction. Diesel won't start. Could someone help me define the cause of trouble?

Starter failure - Replace or repair. Fuel pipes are contaminated - Wash and clean the fuel line. Dirty fuel filter element - Change it. Piston ring failure - Refit a new set of piston rings.

I have the same tractor. Recently, steering wheel works heavy. Help me find out what's malfunction?

Low Oil Rating. Suction filter dirty. Clean and remove. Front wheels aligned wrong. Breakage of hydraulic hoses. It is necessary to fix the problem. Steering pump is defective. Install the new pump. Power steering defect. Replace it.

M108S tractor trouble. Diesel motor cranks but will not start. Help me please specify the source of malfunction. What should I do?

Engine oil viscosity not correct. Engine oil viscosity or level incorrect. Cold start system worked incorrectly. Damage or wear of piston rings. Gasket Blow-By or Leakage. Water in fuel. Crankcase oil too heavy. Use oil of proper viscosity.

Kubota M108S motor breakdowns. Motor is difficult to start regularly. How do i fix damage?

Clogging in fuel tank vent. Air Leaks in Suction Lines. Exhaust pipe is clogged. Slow starter speed. Diesel injection nozzles faulty or sticking. Filter clogged. Incorrect timing.

Steering does not operate on our tractor. Why did this happen?

The air was formed in hydraulic system. We recommend you remove air. Low oil rate in system. It is required to add oil. Wear of the hydraulic steering cylinder Check and repair.

I have the same tractor. Why diesel motor failure to start? How can i fix malfunction?

Wrong valve timing - Set a valve timing. Compression increase. Cylinder bores are worn - You must fix it. Leakage between seats and valves - Eliminate leakage.

Kubota M108S failures. I hear the engine knocking. what kind of trouble?

Lack of oil. Fill with oil. Low engine speed. Oil level low.

I have a problem why tractor front axle to howls incessantly at work?

Defective gear. You must change the gears. Roller bearings are very worn out. Replace it.

I own this tractor some years. Recently, motor start is difficult. How to eliminate?

Injection nozzle is clogged. It is required to inspect injector. The fuel pump is not working. Replace injection pump.

I have the same tractor. Tell me what's problem if differential lock assembly is damaged suddenly? How to solve the problem?

Diaphragm damaged or wear of discs friction clutch. Requires repair.

Our company has M108S tractor. Motor will not start. Help me can i fix the problem?

We can assume fuel filter element has dirt. Otherwise injection pump adjustment is not correct.

Please help me. Engine constantly overheats. What is the fault?

Lack of coolant in cooling system - Fill cooling system to proper level. Defective thermostat - Replace. Dirty, plugged, or damaged shrouding or engine fins. Insufficient engine oil - Inspect oil level and replenish if necessary. Motor overloaded - Reduce motor load. Loose or problem fan belt. Adjust belt tension.

My friend has Kubota M108S. Yesterday he diagnosed a strange noise in the rear axle. Which part is damaged?

These symptoms point to destruction of bearings.

Tell me what is fault if engine excessive white smoke at idle?

If white smoke comes out of exhaust pipe you must to change piston rings urgently. Excessive engine oil - Reduce to specified level.

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KUBOTA TRACTORS SPECIFICATIONS

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KUBOTA ENGINES DATA AND SERVICE SPECS

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KUBOTA FRONT END LOADERS

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KUBOTA TRACTORS TROUBLESHOOTING
L235 L2501 L2550 L275 L3110
L3301 L35 L3710 L3901 L4310
L5030 M4700 M5700 M6040 M6800
M8200 M8540 M9000 MX5100 MX5200