John Deere 4620 Problems

I recently purchased a JD 4620 which is generally in good condition. It has a total time showing around 5900 hours and seems to have taken good care of service.

I have a question about a John Deere 4620 tractor. The injector pump broke down and I purchased a remanufactured part from the dealer. I understand that

I just bought a new destruction valve kit. JD’s new piece is slightly different from the one in the photo and appears to be much longer.

The same 4620 that now works very well, electrical arranged, but has no hydraulic. I have removed the rock shaft and I have found that the transmission

How do you remove the injectors on a 4620? Looks like a 16 prong wrench is needed, but that doesn’t fit on top of the injector. Do you use a line

Two tractors, a ’66 4020, Syncro, like new tires, everything that is in excellent original form with 6000 hours and an owner vs ’

I’ve been chasing a problem in my 4620 hydraulic system and getting nowhere with it. The tractor works almost perfectly in winter in the feeder car

Thought I’d post the conclusion to the hydraulic pressure loss issue every time the clutch was depressed on our ’72 4620 syncro.

A hydraulic problem appears.First it was the hoses and pipes, then the control valve, now it seems like the drive pump needs to be changed along with the

The 4620 had a hydraulic oil leak when I started it today, I may have had the engine revs too high when I removed the manual destruction screw from the pump.