Specifications, Service and Repair of Farm and Lawn Tractors

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Kubota M5091 - Problem Solving

Yesterday I discovered some problem on my Kubota M5091. Diesel does not crank. Tell me what is the probable breakdown?

You used an incorrect type of fuel. Broken drive on fuel injection pump. Inspect and replace. Incorrect fuel injection pump timing. Adjust if necessary.

M5091N tractor breakdowns. Engine deficient output. How do I get rid of problem?

Compression leak - Replace head gasket, tighten cylinder head screw, glow plug and nozzle holder. Engine not broken-in.

Help anybody what is defect if engine stalls?

Air filter element restricted. Defective fuel injection pump. Cylinder bore worn.

Kubota M5-091 question. Transmission shifts hard in reverse. What happened?

Excess amount of lubricant - Drain to level of filler plug.

Please give me information why steering wheel spinning very easy? How do I act to fix an issue?

Low Oil Rating - Pour completely. Steering cylinder has a defect - Repair it. Steering pump have worn - Replace pump.

I got a Kubota M5091 in july. Now there is problem. Motor will not start. Can somebody help me determine the source of issue?

Starter rotates slowly - Diagnose starter and reinstall if necessary. Restriction in a fuel pipe - Clean and wash. Filter element is dirty - Change it. Piston ring failure - Refit a new set of piston rings.

I have the same model. Yesterday I saw the steering turns in one direction. Tell me what's malfunction?

Low oil index. Fill the tank. Leak in hydraulic connections. It is necessary to eliminate a defect. Steering pump is defective. Replace the pump. Power steering is worn out. Install the new power steering.

M5091 tractor failure. Engine is hard to start. Help me please specify the reason of failure. What should I do?

High-speed and idle mixture needles not properly adjusted. Cold start system used incorrectly. Broken or Worn Piston Rings. Defective fuel pump drive shaft. Water, dirt, or air in fuel system. Drain, flush, fill and bleed system. Fuel too heavy at low temperature.

Kubota M5091N motor troubles. Diesel long starting permanently. How do i resolve an issue?

Restricted Fuel Lines. Air leaks on suction lines. Exhaust pipe is clogged. Low voltage - Charge battery. Injection fuel is little or the spray is not excellent. Filter clogged. Long Idle periods.

Steering does not work on my tractor. Why did this happen?

The air was formed in hydraulic system. You need release air from system. Low oil rate in system. Top up the oil. Possible malfunction of hydraulic steering cylinder Make a replacement.

I have the exact same tractor. Why engine failure to start? How do i resolve the question?

Improper valve timing - Make adjustment. Bad cylinder compression. Cylinder bores wear - Repair it. Leakage between seats and valves - Eliminate leakage.

Kubota M5-091 damages. Diesel engine knocks. what is the probable problem?

This is a small residue of engine oil. You should pour this. Coolant temperature dropped.

I have a problem why tractor front axle is cracking regularly when tractor run?

Gears teeth crumbling. You need to install new gears. Roller bearings are very worn out. Fit new bearings.

I have this model three years. Regularly motor start is very hard. How to get rid of this?

Injector is clogged. You must checking injector. The fuel pump does not work. Replace injection pump.

I bought the exact same tractor. Tell me what's problem if locking differential can break swiftly? What's solution to the problem?

This is the diaphragm rupture or discs friction clutch worn out. You have to make repairs.

I'm using Kubota M5091. Diesel engine doesn’t want to work. Tell me what is the fault?

Possibly fuel filter element has dirt. Otherwise high-pressure fuel pump not adjusted.

Please help me. Motor constantly overheats. How can I repair it?

Lack of coolant - Refill with coolant. Coolant level is less - Check level and leakage of system and top up. Cylinder head gasket is blown. Replace it with a new one. Excessive load - Reduce load or speed. Fan belt is damaged. Change as required.

My friend has a M5-091 tractor. Three days ago he heard a strange noise in the crankcase of the drive axle. Which part is damaged?

All signs evidence of destruction of bearings.

Tell me what happened if diesel white exhaust smoke?

If white gas comes out of exhaust pipe you required to replace piston rings urgently. Cold-running engine - Allow to warm check thermostat.

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