24
M1.1.SL30040-SL30040R.NLFREN 11122017
EN
TOOLS
6 Trouble shooting
Problems
Possible causes
Solutions
The motor doesn’t run when the
bidirectional switches are manually
pressed
Power is not turned on
Turn on the power
Wiring is disconnected or loose
Check wiring and repair if necessary
Switch failure
Repair or replace the switch
Capacitor is burnt out
Replace the capacitor
Limit cylinder is not reset, or the limit
switch has failed
Check the limit cylinder and the limit
switch
Hoist automatically shuts off due to
heating
Restart the hoist after it cools down or
replace the thermostat switch
Loud motor noise or failure to lift load
when the bidirectional switches are
manually pressed
Supply voltage is too low
Adjust the power supply voltage
Capacitor is damaged
Replace the capacitor
Brake disc is not completely
disengaged
Send to qualified repair center for
repair
After power is switched off, there is
brake failure or excessive slippage
There is excessive gap in the brake disc
Send to qualified repair center for
repair
Brake spring is broken
Brake disc has worn off
Brake disc is heavily greased
Abnormal increase in noise while using
the wire rope hoist
Poor lubrication
Add sufficient lubricant
Gear bearing damaged due to long
term use
Check and replace gears or bearings
Poor assembly or there is an obstruction
in the hoist
Reexamine assembly to repair the
affected part
The hoist gives electric shock
Grounding failure or no grounding
Check the ground wire or conduct
grounding
Internal wiring is touching the housing
Check and repair the wiring
Limiter malfunction
Limit switch failure
Repair or replace the limit switch
Limit cylinder is blocked
Check and repair the limit cylinder
Floor brake device malfunction
Parts are damaged, screws are loose,
push button fails to touch the floor
brake switch in time
Check for loose or disconnected wiring,
damaged parts, loose screws, and that
the brake device is working properly
Send to qualified repair center for
repair
7 Maintenance
7.1 Cleaning
• Keep all safety equipment, vents and motor housing free of dust or dirt as much as possible. Wipe the equipment with a
clean cloth or blow with compressed air at low pressure to clean.
• Clean the equipment immediately after use every time.
• Clean the equipment regularly with wet cloth and soft soap. Do not use detergents or solvents as they may damage the
equipment’s plastic parts. Ensure that water does not enter the unit.
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