January 2019
Page 16
TROUBLESHOOTING
Mechanical portions of Sky Climber Hoists and Sky Lock must
not
be repaired in the field.
Perform only those repairs for which you are qualified and trained. If a problem condition still
exists, contact your Sky Climber representative.
PROBLEM
POSSIBLE CAUSE
CORRECTIVE ACTION HOIST
Hoist won't come down
Sky Lock Brake tripped
Over speed Condition:
Get off platform!
Nuisance Tripping: Run system up 1"
Reset
Electric Motor runs slow
or hums and will not lift
Low source voltage
Use booster transformer or separate drop
cords
On long drops, too much voltage is
lost in electric cord.
Use booster transformer or separate electric
cord to each unit
Badly "pitted" points
Return to Factory Authorized Service Center
Brake not releasing
Defective contactor
Capacitor
Motor Overheats
Incorrect Voltage
Motors overheat at less than 200V or greater
than 240V for 220V motors and less than
190V and greater than 220V for 208V motors
"Popping" Circuit
Breaker
Breaker undersized
Connect to proper size breaker
Short in electric cord
Replace cord
Runs in only one
direction
Defective contactor center
Return to Factory Authorized Service Center
Motor does nothing
No Power
Restore
Thermal protector tripped
After one hour cooling period, restart
(motor is usually hot)
Emergency Stop Switch engaged
Disengage
Hoist drifts when
stopping is in DOWN
direction
Primary brake worn
Return to Factory Authorized Service Center
SKY LOCK
Engages due to over-
speed conditions
Remove personnel from platform.
Lower platform to ground or raise to
roof by means other than the hoist.
Contact Sky Climber representative.
DO NOT release or reset brake.
Содержание Compact 1000
Страница 22: ...January 2019 Page 22 GAST AIR MOTOR COMPACT SERIES HOISTS ...
Страница 23: ...January 2019 Page 23 ...
Страница 24: ...January 2019 Page 24 ...
Страница 25: ...January 2019 Page 25 ...