Sky Climber Compact 400 - Section 6 - TROUBLESHOOTING

Sky Climber
ZEABORN GUIDELINES
- Page 35 -
18.11.2020 Version 1
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 authorised Service
Centre.
PROBLEM
POSSIBLE CAUSE
CORRECTIVE ACTION
HOIST GOES UP BUT
WON’T COME DOWN
Sky Lock Tripped
OVERSPEED CONDITION : Get off Platform
NUISSANCE TRIPPING :
Run up 10 cm, put load back on primary rope,
and RESET Sky Lock
HOIST RUNS “SLOW”
Low Power Source
Check Voltage at hoist when hoist is operating.
or “HUMS” UNDER
LOAD
Voltage
If more than 10% less than the nominal voltage
increase the power supply voltage by using a
booster transformer
On very long drops TOO
much voltage is lost in the
electric power cord
Use (shorter) power supply cable with larger
copper cross-section or use a booster
transformer.
Brake not releasing
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.
Capacitor
Return the hoist to an authorized Service
Centre.
“POPPING” CIRCUIT
BREAKER
Breaker undersized
Short-circuit in electric
Connect to proper size breaker
Replace power cord
cord
Brake not releasing
Return the hoist to an authorized Service
Centre.
MOTOR “HUMS” BUT
Badly pitted centrifugal
Return the hoist to an authorized Service
WON’T START
points.
Brake not releasing
Defective Contactor
Centre.
Low Source voltage
Use booster transformer.
Starting Capacitor
Return the hoist to an authorized Service
Center
SECTION 6
TROUBLESHOOTING