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John Deere 3640 - Repair tips

The day before I found out some trouble on my John Deere 3640. Diesel motor can not rotate. Explain me what kind of malfunction?

You used an incorrect type of fuel. Fault in fuel injection pump. Check and overhaul. Incorrect fuel pump timing. Perform adjustment.

I would like to know why my steering wheel turns too easy? What should I do to correct the situation?

Low oil index - Top up the oil. Possible malfunction steering hydraulic cylinder - Replace the defective part. The steering pump is defective - Install a new pump.

I got a JD 3640 in july. Today there is failure. Diesel won't start. Can anybody help me determine the source of trouble?

Starter speed is slow - Diagnose starter and reinstall if necessary. Clogging in the fuel line - Clean and wash. Fuel filter is dirty - Replace it. Piston rings are not free or they are worn or broken - Install new piston rings.

I bought the same model. Yesterday I saw steering wheel works tight. Can anybody tell me what's issue?

Low hydraulic oil level in tank. Fill the tank. Hydraulic connections are not sealed. It is necessary to eliminate a damage. Steering pump is defective. Install the new pump. Power steering is damaged. Install the new power steering.

3640 tractor question. Diesel motor very hard starting. Help me diagnose the source of failure. What can I do?

Clogging in air filter/cleaner. Cold start system worked incorrectly. Wear or deformation of piston rings. Valve Leakage/Adjustment Bad. Water mixed in the fuel. Fuel too heavy at low temperature.

JD 3640 diesel motor malfunctions. Engine hard to start sometimes. How could i fix it?

Clogging in fuel tank vent. Air Leaks in Suction Lines. Clogging in exhaust pipe. Low voltage - Charge battery. Dirty or faulty injectors. Clogged fuel filter. Clean or replace fuel filter. Incorrect timing.

Steering does not work on my tractor. What repairs should I do?

The hydraulic system has air. You must release air from system. Low oil rate in the tank. It is required to add oil. Problem with the hydraulic steering cylinder Check and repair.

Having used the exact same model. Why diesel motor does not start? How could i resolve the question?

Valve timing is incorrect - Make adjustment. Low compression. Worn cylinder bores - Need overhaul. Leaks between seats and valves - Remove leaks.

John Deere 3640 breakdowns. The engine knocks. what is the malfunction?

Lack of oil. You should pour this. This is the low temperature of the coolant.

I can't find the reason why driving front axle produces a rumble constantly at work?

Teeth of gears broke. It is recommended to replace the gear. Roller bearings are very worn out. You need to change it.

I own this model less than five years. Often diesel start is very difficult. What you need to fix?

Injection nozzle is clogged. It is required to inspect a nozzle. Injection pump does not work. Install a new high-pressure fuel pump.

I have the exact same tractor. Answer my question what reason if differential lock breaks down suddenly? What's solution to the problem?

The diaphragm torn or replace friction clutch discs. Replace parts.

I'm using JD 3640. Engine not starting. Tell me can I solve the problem myself?

We can assume this is a clogged fuel filter. Or high-pressure fuel pump to lost adjustments.

I have trouble. Motor overheats regularly. How to fix it?

Low coolant level - Fill coolant and check cooling system for loose connections or leak. Dirty radiator core, or grille screens. Remove all trash. Diesel Overload - Reduce diesel load. Loose or defective fan belt - Replace fan belt as required. Check belt tensioner.

My father has 3640 tractor. Day before yesterday he got knocking in the crankcase of the drive axle. Which part is damaged?

All signs evidence of destruction of bearings.

Can someone say me what defect if motor white exhaust smoke?

If white smoke comes from exhaust pipe you necessary to carry out replacement of piston rings immediately.