Posted by Inno on July 28, 2013 at 12:18:00 from (188.8.131.52):
In Reply to: To35 Lift posted by Joes Massey on July 28, 2013 at 09:29:08:
The most likely thing is the lift cylinder. It is bolted to the cover directly below the seat. Lift up the seat and look for cracks in your lift cover, often this takes the brunt of it too. The cause is often the pressure relief valve on the pump gets stuck from years of never having to move. Too much pressure builds up in the cylinder and something has to give. Also, there are adjustment points on your lift control, they should be set so the lift arms NEVER go up to maximum height, if they reach max. height and the control valve is still feeding the fluid to the cylinder and the relief valve is not working, something's gonna let go!
Last year I just rebuilt the pump and refreshed the entire lift on my 202 (same as a 35), the only thing I didn't do was replace the relief valve. I was just testing it without even a load on and it got to the top and kept on pushing, there was a loud bang like you describe and nothing worked. It was a cracked lift cylinder.
If you search a bit you should be able to find many posts about it. Whatever you do, when you are fixing it, get a new relief valve, they are less that $20 (if I recall correctly).
Could also be the pump I guess but I can't imagine what would cause it to suddenly go like that.
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