Holder C 9.92 H - Manual (Page 149)

Operating Instructions
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C 9.92
Malfunctions, causes, remedy
Hydraulic and steering system malfunctions
NOTE
These notes only apply for valve arrange-
ments conforming to our circuit diagrams or
approved by Bucher Hydraulics.
Malfunction Cause Remedy
Power lift or hydraulic cylinder is not
lifting. No build-up of pressure
discernible (steering working
normally). Slide valve in input plate jammed
due to foreign particles Remove and clean slide valve in
input plate LU8SSCS-
OM22/04!
Do not change the pressure setting!
Power lift is lifting too little. Pressure setting too low
Oil level too low
Reset the pressure with a pressure
gauge (190 bar).
Add the specified oil type.
Operating pressure is only achieved
at high RPM. Pump defective Replace the pump
Power lift is not lifting
Insufficient power,
drops after operation. Lift cylinder leaking
Valve leaking Clean / renew