Product Manual

Page 10 of 14
 If the crane will be exposed to wet conditions, more frequent lubrication may be necessary to
prevent a build-up of rust.
Maintenance Interval
Maintenance Point
Daily before operating:
Check the fuel level.
Check the hardware.
Check for broken parts.
Every month or the boom becomes
difficult to swivel on the post:
Lubricate the grease fitting with a grease gun.
After operating one year:
Change the lubrication oil.
Troubleshooting
Use the table below to troubleshoot problems before contacting service personnel or your local
dealer. If the problem continues after troubleshooting, call your local dealer for assistance.
Failure
Possible Cause
Corrective Action
Ram will not lift and hook
lowers under load.
Valve is not closed.
Check that release valve is closed fully.
Bleed air from the system.
Handle moves up when ram is
under loaded.
Valve is blocked.
Lower the boom and securely close the
release valve, manually lift the boom
several inches, open the release valve
and force the boom down as quickly as
possible.
Pump stroke feels spongy;
hook will not lift all the way.
Low on oil.
Check the oil level and refill if needed,
ram may require bleeding.
Oil leaking from fill plug.
Too much hydraulic oil.
Check the fluid level and adjust if
needed.