Posted by charles todd on August 03, 2008 at 21:22:01 from (205.242.95.130):
In Reply to: Rebuild or replace? posted by wallacedw on August 03, 2008 at 13:47:19:
I was chasing dragons with a plastic sword for a while on my Farmall 504. I installed a loader and did not have near the lifting power the specs stated. Checked my hydraulic PSI at the remotes and it was lower than what the relief is set at. I rebuilt the valves, installed a new pump, and changed the oil and filters. The only thing that happened was I got a faster cycle time on the loader (changed the 12GPM to a 17GPM). It still would not lift the front tires off the ground. Found the pilot relief valve for the remote valves and it was stuck open. Cleaned it up and reinstalled. Still the same issue. Removed it again and found a hardened o-ring that seals it between ports (the o-ring in the manifold body, not the relief). This o-ring had worn a groove in the relief valve, got a new one on the way. I am 100% confident this was my problem. Should have looked there 1st!
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Today's Featured Article - The Cletrac General GG and the BF Avery A - A Bit of History - by Mike Ballash. This article is a summary of what I have gathered up from various sources on the Gletrac General GG and the B. F. Avery model A tractors. I am quite sure that most of it is accurate. The General GG was made by the Cleveland Tractor Company (Cletrac) of Cleveland, Ohio. Originally the company was called the Cleveland Motor Plow Company which began in 1912, then the Cleveland Tractor Company (1917) and finally Cletrac.
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