JD 4600 HST PTO Problem

kabeman · Jun 14, 2008

**** Update ****

The electrical checks out 100% I followed the procedures in the tech manual to the letter.

A couple of things that I have noticed:

When raising the FEL the 3-point hitch will not operate and visa-versa.
When the engine is not on I can rotate the PTO shaft by hand
When the engine is on and PTO switch is either on/off I cannot rotate the PTO shaft at all.

Any one with ideas on what to check next?

prosperity · Jun 14, 2008

Not being familiar with the 4600 .....

Does it have both a mid PTO and rear PTO?

The reason I ask, is that on my 2520, there is a selector lever for engaging just the front PTO, just the rear PTO, or both.

If you have this type, have you tried the mid and/or rear PTO separately?

kabeman · Jun 15, 2008

prosperity said:
Not being familiar with the 4600 .....

Does it have both a mid PTO and rear PTO?

The reason I ask, is that on my 2520, there is a selector lever for engaging just the front PTO, just the rear PTO, or both.

If you have this type, have you tried the mid and/or rear PTO separately?

No I have only the rear PTO.
Any other thoughts? Do you have a FEL on your tractor?

kabeman · Jun 16, 2008

Are there any HST Techs out there that could help me with this?
I don't mind going to the dealer but if it is something I can do myself...I'm not saying I want to or even could take apart a HST, just looking for an informed opinion on what I should be looking for.

kabeman · Jul 17, 2008

Hey everyone!

Just to update you. I took the tractor into the dealer and the problem turned out to be corrosion of the PTO solenoid pin, due to moisture in the fluid.
The Tech. cleaned and reinstalled, (charged me two hours, fair I think) and all is fixed.

I'd like to say thank you to all who responded.

mfreund · Jul 17, 2008

I think a Tech is the only one who would have known to look there for problems. I am glad it is working, it is frustrating to have a broken tractor!!!!!