Troubleshooting - Greifzug blocstop BSO Série Manuel D'installation

18

Troubleshooting

Fault
Cause
The independent secondary brake cannot be opened
The independent secondary brake holds the load on the safety rope.
Mechanical defect.
Independent secondary brake activated by normal downwards travel
Emergency stop
Hoisting gear speed too fast.
Independent secondary brake triggering speed set incorrectly.
Speed difference between suspension rope and safety rope too great
when starting movement.
The centrifugal force weight does not turn.
Soiling or defect.
Ice buildup
BSO 2050/2360: The control pin is not visible after the safety rope has been fed in.
The rope has not been fed in correctly.
Mechanical defect.
Independent secondary brakes with limit switch: The hoisting gear moves upwards but not downwards.
Limit switch connection with the hoist controller has failed.
Wire breakage
Limit switch defective.
The rope cannot be fed in.
Rope tip faulty.
Independent secondary brake is closed.
G905.5 - 02/2011
Elimination
– Move the load upwards on the suspension rope.
– Replace the independent secondary brake and send in for repair.
– See '12 Immediate measures to be taken after an emergency-stop'
on page 12.
– Check the hoisting gear.
– Replace the independent secondary brake and send in for repair.
– No tensioning weight on safety rope. Attach tensioning weight.
– Replace the independent secondary brake and send in for cleaning
or repair.
– Carefully use hot air to heat it up (70 °C max).
– Pull the rope out and feed it back in correctly.
– Replace the independent secondary brake and send in for repair.
– Plug in connector.
– Have an electrician replace the wire.
– Have it checked by an electrician and return the independent sec-
ondary brake for repair if necessary.
– Renewing rope tips, see '16.3 Care and maintenance, Rope' on
page 15.
– Open (clamp) the independent secondary brake.
Installation and operating manual
EN-17