hydraulic problems. - Maintenance & Troubleshooting discussion in Forkliftaction's forums

Discussion:
hydraulic problems.

Hyster YE40

hello all,

have an older LP hyster YE40 that has been running fine but the other day one f our careless drivers tiped it over on its side. after getting it upright, it started fine but now has no hydraulics, (lift, steering, etc.) everything else seems to work fine. Have looked inside, pumps seems to be direct drive gear of engine so assume no belts to come off. all hose fine and connected and all controls hooked up and moving what they should.

any ideas?
is there a "tip over" shut off valve?

don't want to tear it all apart if its something simple.

TIA
Ron Smith

Posted 29 Jun 2008 10:03
By ron83
joined 29 Jun'08 - 1 message
South Dakota, United States

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its either run by gears or a chain
id take pressure tests to check pump output
to knock out everything it would have to be the pump, or maybe the priority valve is damaged
check the tank
run it with the cap off (if its not a pressurized tank as some old hysters are, i learned that the hard way lol)
check to see if the fluid is foaming up it might have sucked in a whole lot of air when it was on its side
you may just have to bleed down the system

Posted 30 Jun 2008 00:02
By justinm
joined 13 Apr'06 - 604 messages
New York, United States

New York, New York its a heluva town..you know that The Bronx is up..and I'm Brooklyn down

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