Prowinch PWA - Page 37

Version 1.0
37
Troubleshooting
37
Fault Major Cause Check Items
Does not move horizon-
tally
Rail declining Trolley movement
Electric trolley /manual trolley Inclined pull (wheel is liing) Trolley movement
Electric trolley /manual trolley Gear occlusion problem Trolley movement
Electric trolley /manual trolley Brake fastening Trolley movement
Electric trolley Electric faults Trolley movement
Irregular movement and
noise
Electric trolley /manual trolley
Rail & wheel interference
Trolley movement
Side wheel lacks oil
Uneven wheel wear
Wheel deformaon
Rail deformaon, wear
Bearing wear
Brake wear
Hook Deformaon Hook
Wire rope Wear or deformaon Wire rope
Electric shock upon touching machinery body or control
switch
Equipment not properly
grounded
Proper electric connec-
on
Does not operate in
non-load state
Brake inaudible
Supply power Supply power voltage
Operang circuit break-o,
electric parts overheang
Cables
Internal wiring
Transformer
Electrical relay
Limit switch
Push buon switch
Braking interval too large or
small.
Motor
Calibrate brake
Tripping as motor overheats Thermal protector
Brake audible
Bearing burning out, driving
component wear
Replace brake bearing
Bearing
Slow load operaon Voltage drop Feed cable
Low and high speed status not
operang or working slow
Low voltage Supply power
Voltage drop Feed cable
Movement does not
correspond with switch
buon
Movement did not correspond
with switch buon
Motor wires connected Motor
Connecon error
Internal wiring
Push buon switch
Switch buon did not work
Operang circuit
break-o
Internal wiring
Push buon switch
Electrical installaon error Limit switch