Another TE20 hydraulics issue

Monty J · Nov 23, 2010

G'day

Having bit of a problem with the hydraulics on my TE20. The lever on the right to raise and lower the hydraulics springs back up and wont stay down.

When there is no implement connected (it's usually a slasher/mower) the arms raise and cant be lowered. I drained the oil and the arms dropped. I connected the slasher while the arm were down, filled it back up with oil and the arms stayed down but will not raise. The PTO engages and the slasher works fine it just wont lift

When I drained the oil from the bolt on the front right side of the transmission there was a pop and the oil squirted out. Not sure if it's suppose to do that. Note I was also draining the oil from the main bolt at the bottom of the transmission and the left rear side bolt.

Any help would be appreciated. Thanks in advance.

Cheers

Monty

Jeff-oh · Nov 23, 2010

Sounds like a stuck control valve.

Remove the inspection plates and with the motor OFF see if you can move the vertical (hydraulic fork) arms fwd and aft. They are connected to the control valve.

Jerry/MT · Nov 23, 2010

There is a cork friction disc on the control lever assembly. It may be either worn or needs to be tightened.

Monty J · Nov 25, 2010

(reply to post at 04:13:19 11/23/10)

Thanks for the replies.

I did an inspection a little while back and the vertical forks seemed to be moving ok but I'll do another inspection this weekend just to make sure.

Is it possible that the control valve is partially stuck and allowing the vertical forks to move a little only? How far should the forks be moving back and forth?

In relation to the friction disk. If the disk was worn out should the implement lift if I held the lever down?

Cheers

Monty J · Dec 4, 2010

I checked to see if the control valve is stuck and it seems to be moving freely. the interesting thing is that when I move the lever down to drop the implement the forks pivot at the join more than they pull back (if that makes sense).

I tightened up the disk on the lever also and that did the trick to keep the lever down but the implement still wont drop.

I loosened the nut on the right front side of the tractor and the bolt popped out and oil squirted everywhere and the implement dropped. I started the tractor up again, the implement stayed dropped but after a while it raised again gradually on its own about 15 inches and stopped at that height.

Cheers

Monty J

Another TE20 hydraulics issue

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