Tractel Tirak MWX 1020, Original Operation And Installation Manual

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Installation and operating manual
EN-26 G961.1 - 03/2012
17 Troubleshooting
DANGER!
Risk of being injured by falling objects!
The load lifting equipment may tip over if it jams!
–
Stop the hoist immediately.
– Determine the cause and eliminate the fault.
Fault
Cause Elimination
The motor starts but the rope does not move.
Rope jam in the hoist due to damaged or incorrect rope.
Obstructed rope exit.
– Support the load (e.g. with a wedge clamp or lever hoist).
– Cut the rope in front of and behind the hoist.
– Send the hoist to be repaired.
– When available, install a new rope in replacement hoist.
The load has jammed or is tied in place.
– Carefully free or untie the load.
– Check the rope, rigging and load lifting equipment for their operating
safety.
Rope jam on free reeler.
– Try to free the rope jam through the service opening.
– If this is not possible: cut the rope away from the free reeler.
– If necessary dismantle and replace the free reeler.
– Replace the rope.
Hoist operation is not possible.
Control unit not switched on.
– Switch on control unit.
EMERGENCY OFF button pressed.
– Unlock EMERGENCY OFF button.
Stop button pressed.
– Unlock the Stop button.
Disconnected mains supply.
– Clarify the cause and eliminate the fault.
Power supply cable between the mains connection and the control unit
disconnected.
– Check all cables and connections and repair as necessary.
Power supply connected incorrectly or the neutral conductor is missing.
– Have the connection repaired by an electrician.
– If necessary, have it modified by the manufacturer.
Protective cut-out tripped after overheating due to insufficient motor
cooling.
– Clean motor cover.
Protective cut-out tripped due to overheating caused by 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.
Two poles in the power supply cable are switched. The built-in reverse
polarity protection locks out the control unit.
– Turn the phase reverser in the plug by 180°, see Fig. 24.
The brake does not open (no click when switching on / off) because the
power supply, brake coil, or rectifier are defective.
– Have the power supply, brake coil and rectifier checked by an
electrician and repair or replace.
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.