When in use all cylinders leak down. It's a double mast lift and I was wondering if there is a master check valve somewhere in the line thats allowing the cylinders to leak. Even the tilt leaks down. Can't believe they're all leaking internally and not externally.
Share your knowledge please????
Updown
Showing items 1 - 3 of 3 results.
Install a manual shut off in the hoist cyl's feed line. Open the valve- raise the forks 'bout half way- close the valve & wait & see what it does.
If it still leaks down- hoist cyl issue. No leak down - control valve issue.
The tilt cyl's may be another issue- If one tilt cyl packing is faulty it will let the tilts drift.
definatly could be a relief valve problem
could also be a bad spool in main lift section of control valve
also could be packing or safety valve in one of the outer cylinders
since fluid has to go through the outers to get to the freelift cylinder if there is a problem in one of the outer cylinders (usually the first one where fluid enters mast system) it can cause the whole system to drift down.
Maybe a leaky / slightly stuck open pressure relief valve in the system.
Forkliftaction accepts no responsibility for forum content and requires forum participants to adhere to our rules of conduct. Click here for more information.
If you are having trouble using the Discussion Forums, please contact us for help.