rmissildine
Member
Hey all, back again with the hydraulic issue on the 1966 2000 3 cyl diesel. Just to recap, when I bought the tractor, the lift worked a few times then quit. Changed all the hydraulic fluids, worked again for a few times. Did a top cover rebuild, removed and cleaned the suction filter, replaced the return filter. While I had the cover off, I pulled the check valve from the front of the top cover to inspect the ball and seat, never pulled the seat, as all looked good and clean. Put everything back together, refilled with fluid, bled the pump. Lift would come up, but not with a load. Upon advice and suggestions received from from my previous posts, I have rebuilt the pump (twice, first kit was for the 4 cyl model), replaced the system relief valve at the bottom of the sump, and still, will lift but not with a load.
Now for the kicker... When I pulled the pump off last week to rebuild with the correct kit, I noticed a small part laying on the left running board. Looked like a spring seat of some sort. Only thing I could think of was it was part of the relief valve assembly from the front of the lift cover, but I never pulled the relief valve with the cover on the tractor, and I had the foot board removed when I had to remove the PTO shifter to get to the suction filter...
I looked through my FO-31 manual, the drawings didn't show that part anywhere. This morning, I did a google search and found a picture someone posted a couple of years ago of the exact part I found, which I'll try to post.
The piece I found is on the right side between the spring and ball seat, which appears that it has to be installed before the seat. Remember, I never pulled the seat out, but there is evidence that a po has.
Now, is there any way possible that that spring seat could have come out without removing the seat??? Could that prevent the lift from lifting a load (seems to me it would)?
Sorry for the long post, but this hydraulic issue has really tested my patience and what little experience I have with hydraulics on these newer tractors (newer than my 1952 8N anyway).
Thanks,
Roger
Now for the kicker... When I pulled the pump off last week to rebuild with the correct kit, I noticed a small part laying on the left running board. Looked like a spring seat of some sort. Only thing I could think of was it was part of the relief valve assembly from the front of the lift cover, but I never pulled the relief valve with the cover on the tractor, and I had the foot board removed when I had to remove the PTO shifter to get to the suction filter...
I looked through my FO-31 manual, the drawings didn't show that part anywhere. This morning, I did a google search and found a picture someone posted a couple of years ago of the exact part I found, which I'll try to post.
The piece I found is on the right side between the spring and ball seat, which appears that it has to be installed before the seat. Remember, I never pulled the seat out, but there is evidence that a po has.
Now, is there any way possible that that spring seat could have come out without removing the seat??? Could that prevent the lift from lifting a load (seems to me it would)?
Sorry for the long post, but this hydraulic issue has really tested my patience and what little experience I have with hydraulics on these newer tractors (newer than my 1952 8N anyway).
Thanks,
Roger