John Deere pto problem

[Cmoran]

I’m having trouble with my 6620se after rebuilding the pto pack it only spins very slowly I’ve put on pressure clocks and it’s not building much pressure I tryed modulating valve of another tractor but no joy. Any ideas?

 

[Timbo]

Piston seals in backwards ? Or damaged on assembly ?

 

[Cmoran]

Piston seals in backwards ? Or damaged on assembly ?

Thanks. Does that mean we need to take the pack out again?

 

[Tractortech]

Now Then..
Put a 0 - 400 Psi gauge in the port marked 'Brake'. With the PTO stopped, see what you have..

 

[Cmoran]

Now Then..
Put a 0 - 400 Psi gauge in the port marked 'Brake'. With the PTO stopped, see what you have..

I done that if I remember correctly it was up around 200 psi with pto of and 0 when on. Clutch port not registering much at all

 

[Tractortech]

Why did you take it to pieces, what was wrong etc?? Is it all back correctly?? Are the rings on the hub damaged / worn??

 

[Cmoran]

Why did you take it to pieces, what was wrong etc?? Is it all back correctly?? Are the rings on the hub damaged / worn??

The discs in the pack were burnt out 16000hours mostly pto work. Put in all new genuine parts my mechanic swears it’s back 100% but I’m doubtful!!

 

[Timbo]

I done that if I remember correctly it was up around 200 psi with pto of and 0 when on. Clutch port not registering much at all

Have you got flow at the clutch port with pto on ?

 

[Cmoran]

Have you got flow at the clutch port with pto on ?

ya wasn’t registering much just a small bit

 

[Timbo]

Is it enough flow, at enough pressure to lock up the pack?

 

[Cmoran]

Is it enough flow, at enough pressure to lock up the pack?

No definitely not enough pressure anyway