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JD 6630 - Repair methods

Yesterday I recognized the problem with my John Deere 6630 Premium. Diesel does not crank over. Tell me what is the probable issue?

Fuel grade is wrong. The fuel pump drive is faulty. Check and overhaul. Timing of fuel injection pump is incorrect. Need to set up.

Please give me information why my steering wheel turns around too easy? What are my actions to troubleshoot?

Low hydraulic oil level in the tank - Fill the tank. This is a steering cylinder malfunction - Perform repair. The steering pump is defective - Repair pump.

I purchased a John Deere 6630 in march. Now there is malfunction. Diesel motor won't start. Can anyone help me find a source of damage?

Starter turns bad - Change or restore. Clogging in the fuel line - Wash and clean the fuel line. Dirty fuel filter element - Renstall filter element. Piston rings are damaged - Need replacement of piston rings.

I bought the same tractor. Recently I noticed steering wheel turns very badly. Somebody tell me what's issue?

The minimum oil level. It is required to top up the oil. Oil flows out of the system. It is necessary to fix a damage. Steering pump is worn out. Check the steering pump. Power steering defect. Replace it.

6630 tractor issue. Motor very hard starting. Need help to find the reason of trouble. What should I check?

Restriction in air filter/cleaner or induction system. Cold start system used incorrectly. Piston rings are worn or broken. Broken Fuel Pump Drive Shaft. Water mixed in the fuel. Crankcase oil too heavy. Use oil of proper viscosity.

JD 6630 diesel malfunctions. Diesel motor starts hard regularly. How do i fix this defect?

Clogging in fuel tank vent. Air leaks on intake hoses. Clogging in exhaust pipe. Slow starter speed. Diesel injection nozzles faulty or sticking. Filter clogged. Incorrect timing.

Steering doesn’t function on our tractor. How can I fix it?

The air was formed in hydraulic system. We recommend you draw out air. Low hydraulic oil rate in system. Top up the oil. Possible malfunction of hydraulic steering cylinder Make a replacement.

I use the same model. Why diesel doesn't start? How do i solve a problem?

Wrong valve timing - Make adjustment. Bad cylinder compression. Wear cylinder bores - You must fix it. Leaks between valves and seats - Eliminate leak.

JD 6630 Premium damages. I hear the engine knocking. what is the problem?

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

Please help to understand why driving front axle is cracking incessantly at work?

Gears teeth crumbling. Replace gears. Roller bearings are firmly erased. Fit new bearings.

I have this model three years. Recently, motor start is very hard. What a breakdown?

Injector is clogged. You should to check injector. The fuel pump is damaged. Replace injection pump.

I bought the exact same model. Can someone explain to me why differential lock is defective swiftly? How can I fix it? What should I do?

This is the diaphragm rupture or discs friction clutch worn out. Replace parts.

I have a John Deere 6630 Premium. Diesel engine not starting. Help me how can I fix this?

Probably Dirt in the fuel system. Or injection pump to lost adjustments.

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

Coolant level lowered. Pour liquid into radiator to recommended level. Radiator core or side screens dirty - Clean radiator as required. Diesel Overload - Reduce diesel load. Loose or fan belt issue - Adjust fan belt and replace if needed.

My dad uses 6630 tractor. Today he heard a crash in the rear axle. Which part is damaged?

These sounds denote destruction of bearings.

Help with the question what fault if engine exhaust white gas?

When white smoke visible from exhaust pipe you must to change piston rings immediately.