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John Deere 4650 Trouble - Repair tips

Yesterday I got some problem with my JD 4650. Engine does not rotate. Explain me what is the damage?

You used an incorrect type of fuel. Defective high pressure fuel pump. Check and overhaul. Incorrect fuel injection pump timing. Perform adjustment.

Please tell me why steering wheel spinning not resisting? How do I act to get rid of problem?

Low Oil Rating - It is required to top up the oil. Possible malfunction steering hydraulic cylinder - Change the seal. The steering pump is defective - Replace pump.

I bought a John Deere 4650 in february. Today there is trouble. Diesel not starting. Can anyone help me determine the cause of breakdown?

Starter does not work - Inspect the starter and install a new as required. Fuel pipes are contaminated - Flush and clean the fuel pipe. Dirty fuel filter element - Renstall filter element. Piston rings are not free or they are worn or broken - Need replacement of piston rings.

I bought the same tractor. Recently I noticed steering wheel operate very badly. Help me find out what's issue?

Low oil index. Top up the oil. Breakage of hydraulic hoses. It is necessary to fix a fault. Steering pump is worn out. Install the new pump. Power steering defect. Requires repair.

4650 model failure. Diesel starts hard. Need help to define the source of failure. What needs to be repaired?

Restriction in air filter/cleaner or induction system. Cold start system used incorrectly. Piston rings are worn or broken. High pressure fuel pump drive shaft is broken. Water mixed in the fuel. Crankcase oil too heavy. Use oil of proper viscosity.

JD 4650 motor troubles. Motor is difficult to start permanently. How could i resolve the question?

Restriction in fuel tank vent. Air leak on the suction side of the system. Clogging in exhaust pipe. Slow starter speed. Injection fuel is little or the spray is not excellent. Clogged fuel filter. Clean or replace fuel filter. Incorrect timing.

Steering does not operate on our tractor. What is problem?

The air is in hydraulic system. You need release air from system. Hydraulic oil low level in the tank. Top up the oil. Steering cylinder has a defect Check and repair.

Having used the exact same model. Why motor doesn't start? How could i solve a problem?

Incorrect valve timing - Need setting of valve timing. Bad cylinder compression. Worn cylinder bores - Need overhaul. Leakage between valves and seats - Eliminate leakage.

John Deere 4650 issues. I hear a diesel engine knocking. what is the probable trouble?

This is a small residue of engine oil. Fill up. This is the low temperature of the coolant.

Please help to understand why driving front axle to make a lot of noise incessantly while driving?

Teeth of gears broke. You must change the gears. Bearings have damage. You need to change it.

I'm the owner this tractor about 5 years. Sometimes diesel start is difficult. What you need to fix?

Injection nozzle is clogged. Need to diagnose injector. The fuel pump has a malfunction. Install a new high-pressure fuel pump.

I have the exact same tractor. Answer my question why differential lock assembly can break abruptly? What's solution to the problem?

Diaphragm damaged or disks of the friction clutch are worn out. Requires repair.

We have 4650 model. Motor doesn’t want to work. Help me what is problem?

We can assume fuel filter clogged. Or high-pressure fuel pump not adjusted.

Please help. Motor overheats regularly. How to fix the problem?

Lack of coolant - Refill with coolant. Dirty radiator core, or grille screens. Remove all trash. Motor overloaded - Reduce motor load. Broken or misadjusted fan belt - Adjust or replace.

My dad uses JD 4650. Today he diagnosed a crash in the crankcase of the drive axle. Which part is damaged?

These signs denote bearing problems.

Tell me what defect if engine exhaust white gas?

When white smoke comes out of exhaust pipe you need to carry out replacement of piston rings immediately.