Specifications, Service and Repair of Farm and Lawn Tractors

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JD 6520 - Operating faults

Recently I recognized a breakdown with my John Deere 6520 Premium. Diesel does not rotate. Tell me please what could be the trouble?

Fuel type is incorrect. Fuel pump not working. Check and repair. Wrong fuel pump timing. Adjustment required.

I would like to know why my steering wheel rotates without opposition? What should I do to correct the situation?

Minimum Oil Rating - It is required to top up the oil. Possible malfunction steering hydraulic cylinder - Make a replacement. Pump steering broke - Check the steering pump.

I acquired a JD 6520 in november. Presently there is issue. Diesel won't start. Can anybody help me diagnose a source of failure?

Starter does not work - Check starter and replace if necessary. Clogging in the fuel line - You need to perform cleaning and washing. Filter element is dirty - Install new filter. Piston rings worn out - Replace the piston rings.

I use the same model. Recently, steering wheel operate very badly. Explain to me what is a breakdown?

Minimum Oil Rating. It is required to top up the oil. Hydraulic connections are not sealed. It is necessary to fix the problem. Steering pump is worn out. Install the new pump. Power steering has a defect. Replace it.

6520 model issue. Diesel engine is difficult to start. Help me define the reason of problem. What should I check?

Clogging in air filter/cleaner. Incorrect functions of the cold start system. Wear or deformation of piston rings. Broken Fuel Pump Drive Shaft. Water in fuel. Fuel too heavy at low temperature.

John Deere 6520 Premium diesel engine breakdowns. Diesel is difficult to start permanently. How could i resolve the question?

Restricted Fuel Lines. Air leaks on suction lines. Restriction in exhaust pipe. Slow starter speed. Injection fuel is little or the spray is not excellent. Filter clogged. Incorrect timing.

Steering not working on my tractor. Why did this happen?

The air was formed in hydraulic system. You should remove air. Small level of hydraulic oil in system. Top up the oil. Steering cylinder has problems Check and repair.

I am working on the exact same model. Why diesel engine does not start? How can i fix it?

Valve timing is improper - Set a valve timing. Bad compression. Wear cylinder bores - You must fix it. Leakage between seats and valves - Remove leakage.

John Deere 6520 issues. The engine knocks. what could be the malfunction?

Oil of small quantity. Add oil. Coolant temperature is low.

I have a problem why driving front axle to rattle chronically when tractor run?

Teeth of gears broke. It is recommended to replace the gear. ball bearings crumbled. Replace it.

I'm the owner this model some years. Sometimes engine start is intermittent. How to get rid of this?

Injector is clogged. You should to inspect injector. Injection pump is damaged. Install a new high-pressure fuel pump.

I have the exact same model. Answer my question what reason if differential lock does not work immediately? How can I fix it? What should I do?

This is the diaphragm rupture or disks of the friction clutch are worn out. Change worn components.

Our company has a JD 6520 Premium. Diesel engine does not start. Help me How can I eliminate a breakdown?

We can assume Dirt in the fuel system. Otherwise the fuel pump not adjusted.

Need help. Motor overheats regularly. What kind of malfunction?

Lack of coolant - Refill with coolant. Clogged radiator - Clean the core. Engine overloaded. Shift to lower gear or reduce load. Loose or defective fan belt - Replace fan belt as required. Check belt tensioner.

My friend has 6520 model. Today he heard a crunch in the rear axle. Which part is damaged?

These signs denote bearing problems.

Help with the question what is the reason that motor emits white smoke?

When white gas visible from the exhaust pipe you must to change piston rings urgently.

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