stellar labs EC5000 - Crane Hoist Troubleshooting

For detailed information on the crane hoist, please refer to the '-+,*$%($+,+
'+,%%,$('') *,(*1+-$ (WARN PN 72561 A1).
Troubleshooting 
Crane Hoist Troubleshooting
PROBLEM
Hoist won’t operate in
either direction or motor
doesn’t operate.
Hoist will power-out but
not power-in.
Hoist will power-in but not
power-out.
Motor tries to power-out
but hoist stalls or locks up.
Hoist operates in both
directions but will not lift
rated load.
Hoist slows down and stalls
during power-out.
Hoist vibrates badly or is
noisy during lifting or
lowering of load.
PROBABLE CAUSE
Power is not connected..
Emergency on/off switch
(optional) is in “off” position.
Failure of components or
wiring inside controller.
Hoist Relay is malfunctioning.
Power to remote control
pendant has been
interrupted.
Load brake failure.
Low voltage at hoist.
Brake needs servicing.
Brake needs servicing.
Mounting surface is not flat.
Tie rod or tie bar is bent.
CORRECTION
Check wiring connections. Check for electrical
power at positive terminal on controller.
Check for voltage on the controller terminals
with remote switch in either direction.
Check position of emergency on/off switch
(optional).
Check for electrical power at center pin of
remote socket on controller. Check continuity
of remote lead connector from center pin to
either side pin with remote control on/off
switch in both positions.
Replace relay if defective.
Check for electrical power at center pin of
remote socket on controller. Check continuity
of remote lead connector from center pin to
either side pin with remote control on/off
switch in both positions. Check continuity on
crane wiring harness.
Service or replace load brake.
Be sure wiring cable size guidelines have been
met.
Check condition of battery.
Check all power wiring and connections for
corrosion. Clean and tighten connections.
Service or replace load brake.
Service or replace load brake.
Check to make sure mounting surface is flat to
within +/- 0.020 in. (0.50 mm). Replace tie rod
or tie bar if necessary. Check for bent or
cracked housings.