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John Deere 3720 - Repair assistance

Lately I recognized some issue on my JD 3720. Diesel motor will not turn over. Explain me what could be the problem?

Fuel type is wrong. The injection pump is broken. Inspect and replace. Wrong fuel injection pump timing. Perform adjustment.

Please tell me why steering wheel turns around very easy? What are my actions to get rid of problem?

Low oil index - Fill the tank. The steering cylinder is heavily worn - Perform repair. Steering pump have worn - Check the steering pump.

I acquired a John Deere 3720 in february. Nowadays there is issue. Motor won't start. Can anyone help me identify the cause of issue?

Starter does not work - Change or restore. Fuel pipes are contaminated - Clean and wash. Dirty fuel filter element - Change the filter. Wear piston rings - Need replacement of piston rings.

I have the same tractor. Recently I noticed steering wheel operate very badly. Tell me what are possible malfunctions?

Low hydraulic oil level in the tank. It is required to top up the oil. Leak in hydraulic connections. Eliminate a fault. Steering pump is worn out. Replace the pump. Power steering defect. Replace it.

3720 tractor issue. Engine hard starting. Please help me determine main cause of trouble. What should I check?

Clogging in air filter/cleaner. Cold start system worked incorrectly. Defect or failure of piston rings. Broken Fuel Pump Drive Shaft. Water in fuel. Fuel too heavy at low temperature.

JD 3720 motor breakdowns. Diesel hard starting permanently. How can i fix it?

Restricted Fuel Lines. Air leaks on suction lines. 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 not working on my tractor. What is problem?

Hydraulic system has a large amount of air. We recommend you draw out air. Hydraulic oil small indicator in the tank. Pour completely. Steering cylinder has a defect Make a replacement.

I own the same model. Why motor has not been started? How can i fix it?

Valve timing is improper - Need setting of valve timing. Compression increase. Cylinder bores are worn - Need overhaul. Leakage between valves and seats - Remove leakage.

John Deere 3720 malfunctions. The engine knocks. what kind of problem?

Lack of oil. Add oil. Coolant temperature is low.

I can not understand why driving front axle to make a lot of noise chronically when driving?

Teeth of gears broke. Replace gears. Roller bearings have damage. Fit new bearings.

I have this tractor about four years. Sometimes engine start is intermittent. How to eliminate?

Nozzle is dirty. Need checking injector. The fuel pump does not work. Replace injection pump.

I get the same model. Can anybody tell me what reason if locking differential broke down swiftly? How to solve the problem?

Diaphragm worn out or wear of discs friction clutch. Change worn components.

We have JD 3720. Diesel engine doesn’t want to work. Tell me How can I eliminate a breakdown?

Probably fuel filter clogged. Otherwise the fuel pump is improperly adjuste.

Please help. Engine overheats regularly. How to repair it?

Lack of coolant in cooling system - Fill cooling system to proper level. Clogged radiator - Clean the core. Engine overloaded - Reduce engine load. Loose or fan belt issue - Adjust fan belt and replace if needed.

My brother has 3720 tractor. Three days ago he diagnosed a crunch in the rear axle. What problem tell me?

All signs point to damaged bearings.

Help with the question what fault if diesel emits white smoke?

If white gas visible from the exhaust pipe you must to replace piston rings urgently.