15
3. Make at least one full trip raising and lowering per day. For exhausting the air from
the system, which could effectively avoid the corrosion of the cylinder and damage
to the seals caused by presence of air or water in the system.
4.
Protect the outer surface of the oil cylinder’s piston rod from bumping and
scratching, and timely clean up the debris on the oil cylinder dust-ring and the
piston rod.
VII
.
TROUBLE SHOOTING
TROUBLE
CAUSE
REMEDY
Motor does not
run
1. Start Button does not work
2. Wiring connections are not in good
condition
3. Motor burned out
4. AC contactor burned out
1. Replace start button
2. Repair all wiring connections
3. Repair or replace motor
4. Replace AC Contactor
Motor runs but
the lift is not
raised
1. Motor runs in reverse rotation
2. Gear Pump out of operation
3. Release Valve in damage
4. Relief Valve or Check Valve in damage
5. Low oil level
6. Overload or system low pressure
1. Reverse two power wire
2. Repair or replace
3. Repair or replace
4. Repair or replace
5. Fill tank
6. Check load or adjusting the
pressure of hydraulic system
Lift does not
stay up
1. Release Valve out of work
2. Relief Valve or Check Valve leakage
3. Cylinder or Fittings leaks
Repair or replace
Lift raises slowly
1. Oil line is jammed
2. Motor running on low voltage
3. Oil mixed with air
4. Gear Pump leaks
5. Overload lifting
1. Clean the oil line
2. Check electrical system
3. Fill tank
4. Repair or replace pump
5. Check load
Lift can not
lower
1. Safety device are in activated
2. Release valve in damage
3. Oil system is jammed
1. Release the safeties
2. Repair or replace
3. Replace Clean the oil system
VIII
.
Lift disposal.
When the car lift cannot meet the requirements for normal use and needs to be
disposed, it should follow local laws and regulations.
