COMEUP Electric Winch (Ver:02) - Manual (Page 22)

20
Trouble Shootings
Checking the winch for smooth operation by pressing ↑ or ↓ button of pendant switch.
When winch fails to start after several attempts, or if any defective operation to be happened,
check followings.
Symptom Possible Cause Remedy
No reaction
Wrong connection Connect correctly
No power source or wrong ratings Check power source
Motor buzzes but does not start
Brake does not open Check brake assembly
Wrong connection Connect correctly
Burnt motor Rewind or replace motor
Failing in restarting
Overload Reduce the load
Brake does not open Check brake assembly
Damaged centrifugal switch for 1
phase motor
Replace centrifugal switch
Failing in lifting a load within the
lifting capacity
Considerable voltage drop ( It can
provoke non-opening of brake)
Check voltage to make sure the
voltage shall be falling within 5% of
rated voltage
Brake does not open Check brake assembly
Burnt or communicated motor Rewind or replace motor
Wrong power lead in size and length
Collect the motor lead in size and
use a bigger section of lead for
longer distance
Brake does not open completely
Considerable voltage drop ( It can
provoke non-opening of brake)
Check voltage to make sure the
voltage shall be falling within 5% of
rated voltage
Damaged brake coil
Measure the standard value and
replace brake coil
Improper brake gap Adjust brake gap
Brake disc wear down Replace brake disc
Crossed rotation Wrong connection Connect the wirings correctly
Grease leakage Damaged oil seal Replace oil seal
Brake disc wear down Replace brake disc