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Installation and operating manual
G932.1 - 06/2010
EN-21
EN
EN
Fault
Cause
Clearing
Hoist does not work
The brake does not open (no click when switching on / off) because the
brake rotor is worn.
–
Send the hoist to the manufacturer for repairs or hand over to a
specialist hoist workshop.
The load cannot be lifted / pulled although the rope can be lowered / slackened.
The load has jammed on an obstacle.
–
Carefully move the load downwards and remove the obstacle.
–
Check the rope, rigging and lifting equipment to confirm their operat-
ing safety.
Overload
–
Check the load and reduce if necessary.
–
Reeve the rope according to the block and tackle principle, see
Fig. 8.
The rope has run out completely after lowering or slackening without load. –
Feed the rope back in.
–
Clarify the cause.
–
Avoid repeating, e.g. by using a longer rope.
Fault in the UP control circuit of the hoist.
–
Have the connections, wiring and cut-outs checked by an electrician
and repair if necessary.
Limit switch faulty or tripped.
–
Move down until the limit switch is free.
–
Check the limit switch and replace if necessary.
Poor motor performance due to a defective starter capacitor.
–
Have the starter capacitor checked by an electrician and replace if
necessary.
Defective centrifugal switch (starter capacitor overloaded).
–
Measure the current on the auxiliary winding in the terminal box.
Repairs should only be carried out by Greifzug Hebezeugbau
GmbH.
The motor hums intensively or the rope drive creaks although UP and DOWN travel is possible.
Overheating caused by poor motor cooling.
–
Clean motor cover.
Overheating due to the voltage being too high or too low.
–
Have an electrician measure the voltage and power consumption
when subjected to load.
–
Increase the wire cross-section if necessary.
ATTENTION! Dirt in the rope drive.
Rope and rope drive might be damaged.
–
Replace the hoist as soon as possible and have the hoist checked /
repaired by Greifzug Hebezeugbau GmbH or an authorised hoisting
gear workshop.