Troubleshooting - Sky Climber LNX 65X Manuel Utilisateur

Troubleshooting

This section provides a list of problems and a systematic approach to their solution.
Mechanical portions of the Sky Climber hoist cannot and must not be repaired in the field.
Perform only those electrical repairs for which you are trained.
If problem conditions still exist , call the nearest Sky Climber representative or authorized
Service Centre.
PROBLEM
HOIST GOES UP
BUT WON'T COME
DOWN
HOIST RUNS
"SLOW" or "HUMS"
UNDER LOAD
"POPPING" CIRCUIT
BREAKER
90
44UMM001.docx print date 21/06/2016
POSSIBLE CAUSE
Sky Lock Tripped
Low Power Source
Voltage
On very long drops
TOO much voltage is
lost in the electric
power cord
Brake not releasing
Capacitor
Breaker undersized
Short-circuit in electric
cord
CORRECTIVE ACTION
OVERSPEED CONDITION : Get off
Platform
NUISSANCE TRIPPING :
Run up 10 cm, put load back on primary
rope, and RESET Sky Lock
Check Voltage at hoist when hoist is
operating. If more than 10% less than the
nominal voltage increase the power
supply voltage by using a booster
transformer
Use (shorter) power supply cable with
larger copper cross-section or use a
booster transformer.
Check the brake release function by
actuating the brake release lever manual
when operating the hoist. If the hoist
functions at normal speed, the problem
is the brake (adjustment) or the rectifier.
Return the hoist to an authorized Service
Centre.
Return the hoist to an authorized Service
Centre.
Connect to proper size breaker
Replace power cord
LNX