________________________________________________________________________________

New Holland T4.120 - Operation and repair

A week ago I noticed some trouble on my New Holland T4.120. Diesel engine does not rotate. Explain me what is the malfunction?

You used an incorrect type of fuel. The fuel pump drive is faulty. Inspect and replace. Incorrect fuel injection pump timing. Need to set up.

NH T4.120 damages. Poor engine performance. How can I correct the situation?

Fuel filter, fuel prefilter, water separator or fuel line clogged - Replace fuel filter unit. Clean fuel prefilter, water separator, fuel line.

Help anybody what is damage if engine does not run smoothly?

Air filter element restricted. Defective fuel injection pump. Cylinder bore worn.

T4.120 model problem. Transmission shift hard at low speeds. What could it be?

Failure to fully depress clutch pedal when shifting - Instruct driver.

Please give me information why steering wheel turns around too easy? What do I need to do to troubleshoot?

Low hydraulic oil level in tank - It is required to top up the oil. This is a steering cylinder malfunction - Perform repair. Pump steering broke - Check the steering pump.

I got a New Holland T4.120 in november. Presently there is damage. Motor will not start. Could anybody help me diagnose a source of damage?

Starter failure - Change or restore. Dirt in the fuel system - You need to perform cleaning and washing. Dirty fuel filter element - Renstall filter element. Piston rings are broken - Must be repaired.

I bought the same model. Recently I noticed the steering turns in one direction. Help me find out what is problem?

The minimum oil level. Top up the oil. Hydraulic connections are not sealed. It is necessary to fix the problem. Pump of power steering is broke. Repair the pump. Power steering has a defect. Replace it.

T4.120 tractor trouble. Diesel hard to start. Need help to define main cause of breakdown. What do I need to check?

Remove and clean Fuel Tank and lines. Change Fuel Filter. Incorrect functions of the cold start system. Broken or Worn Piston Rings. High pressure fuel pump drive shaft is broken. Water, dirt, or air in fuel system. Drain, flush, fill and bleed system. Fuel too heavy at low temperature.

NH T4.120 diesel issues. Diesel engine long starting sometimes. How do i resolve an issue?

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. Filter clogged. Incorrect timing.

Steering stopped working on our tractor. How can I fix it?

Hydraulic system has a large amount of air. You need draw out air. Low hydraulic oil rate in system. Pour completely. Steering cylinder has problems Make a replacement.

I use the exact same model. Why engine failure to start? How do i fix malfunction?

Valve timing is wrong - Need setting of valve timing. Compression increase. Wear cylinder bores - Repair it. Leakage between seats and valves - Eliminate leak.

NH T4.120 damages. This is a diesel knock. what is the probable trouble?

Oil of small quantity. You should pour this. Coolant temperature is low.

I can not understand why front axle is cracking chronically while driving?

Defective gear. Replace gears. ball bearings are very worn out. Swap the replacement.

I'm the owner this tractor three years. Recently, diesel starting is very hard. How to get rid of this?

Injection nozzle is clogged. Need to inspect a nozzle. Injection pump has a malfunction. Repair high-pressure fuel pump.

I bought the same model. Answer my question why locking differential is damaged swiftly? How to solve the problem?

Diaphragm damaged or disks of the friction clutch are worn out. You have to make repairs.

I have T4.120 tractor. Diesel engine not starting. Help me can i fix the problem?

Most likely Dirt in the fuel system. Otherwise high-pressure fuel pump is improperly adjuste.

Please help me. Diesel overheats regularly. What could be the problem?

Low coolant level - Fill coolant and check cooling system for loose connections or leak. Clogged radiator - Clean the core. Motor overloaded - Reduce motor load. Loose or fan belt issue - Adjust fan belt and replace if needed.

My dad uses New Holland T4.120. Yesterday he heard a strange noise in the rear axle housing. What problem tell me?

These signs talk about bearing problems.

Help with the question what damage if engine excessive white smoke at idle?

When white gas comes out of exhaust pipe you must to change piston rings urgently. Excessive engine oil - Reduce to specified level.