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John Deere 4440 Problems

Recently I discovered the damage on my 4440 tractor. Diesel does not crank. Explain me what is the probable issue?

Fuel type is incorrect. Defective high pressure fuel pump. Check and repair. Wrong fuel injection pump timing. Adjustment required.

John Deere 4440 damages. Poor engine output. How to fix an issue?

Blocked air filter. Clean it or replace it if necessary. Dirty engine air screen/fins. Clean engine air screen/fins.

Help with the question what is the reason that engine misses?

Clogged fuel injectors. Fuel line restricted. Compression too low. Cooling fins plugged.

JD 4440 tractor problem. Transmission rough shifting. What's the reason?

Worn or defective clutch - Replace worn parts.

Please give me information why steering wheel rotates without resistance? How do I act to get rid of problem?

The minimum oil level - It is required to add oil. Possible malfunction steering hydraulic cylinder - Change the seal. Steering pump have worn - Install a new pump.

I acquired a JD 4440 in september. Nowadays there is breakdown. Motor will not start. Can anyone help me define a source of malfunction?

Starter failure - Check starter and replace if necessary. Clogging in the fuel line - Clean and wash. The fuel filter element is dirty - Replace fuel filter. Piston ring failure - Replace the piston rings.

I bought the same tractor. Recently I noticed the steering is very hard. Somebody tell me what's issue?

Minimum Oil Rating. Fill the tank. Hydraulic connections are not sealed. Eliminate a damage. Pump of power steering is broke. Repair the pump. Power steering is worn out. Diagnose the power steering.

4440 tractor trouble. Diesel engine is hard to start. Help me please determine the cause of trouble. What needs to be repaired?

Restriction in air filter/cleaner or induction system. Cold start system used incorrectly. Piston rings are wear or deformed. Valve Leakage/Adjustment Bad. Water in fuel. Crankcase oil too heavy. Use oil of proper viscosity.

John Deere 4440 diesel breakdowns. Engine starts hard permanently. How could i resolve the question?

Restriction in fuel tank vent. Air in fuel tank. Bleed fuel tank. Exhaust pipe is clogged. Slow starter speed. Dirty or faulty injectors. Filter clogged. Incorrect timing.

Steering doesn’t function on our tractor. Why did this happen?

Hydraulic system has a large amount of air. You must release air from system. Hydraulic oil small indicator in the tank. Fill the tank. Wear of the hydraulic steering cylinder Change the seal.

I own the same tractor. Why diesel motor has not been started? How can i fix the breakdown?

Valve timing is improper - Adjust valve timing. High or Low compression. Cylinder bores are worn - Repair it. Leaks between valves and seats - Need Removal of leakage.

JD 4440 failures. This is a diesel motor knock. what could be the malfunction?

This is a small residue of engine oil. You should pour this. Coolant temperature dropped.

Please help to understand why driving front axle produces a rumble regularly when driving?

Defective gear. You need to install new gears. Bearings have damage. Fit new bearings.

I have this model more than 3 years. Often motor start is very hard. What a breakdown?

Nozzle is clogged. You must to check injector. Injection pump has a malfunction. Repair fuel pump.

I have the same tractor. Answer my question why differential lock broke down abruptly? How can I fix it? What should I do?

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

Our company has John Deere 4440. Diesel engine not working. I need to know what is the fault?

Probably Dirt in the fuel system. Otherwise injection pump not adjusted.

Please help. Engine overheating occurs. What kind of malfunction?

Lack of coolant - Refill with coolant. Clogged radiator - Clean the core. Excessive load - Reduce load or speed. Loose or problem fan belt. Adjust belt tension.

My dad uses 4440 tractor. Two days ago he got a noise in the rear axle. What is the malfunction?

These signs denote damaged bearings.

Tell me what is problem if motor emits white smoke?

When white smoke visible from exhaust pipe you required to carry out replacement of piston rings urgently. Excessive engine oil - Reduce to specified level.

JOHN DEERE TRACTORS ATTACHMENTS
1023E	2025R	2210	2520	3032E
3046R	3520	4066R	4105	4200
4320	4400	4520	4600	4720
430	420	455	X300	X350
X485	X500	X590	X700	X738

JOHN DEERE TRACTORS TROUBLESHOOTING
2640	3040	3310	3650	4100
5050D	5090R	5410	6105R	7200R
E130	L111	LA110	LT155	X300R