9
TROUBLE SHOOTING
Trouble
The lowering button is pressed but
the lift does not lower.
The lift is lowered but one of the
two platforms is higher.
Cause
1. Make sure there are no
obstacles blocking the lowering
phase.
2. Make sure the main switch is on
and power supply is not inter-
rupted.
3. Blown fuse on 24V power supply.
4. Faulty Transformer.
5. Valve coils are faulty or not sup-
plied with current.
6. Damaged or faulty valves.
7. Faulty lowering block proximetry,
broken cable, or improperly con-
nected to the card.
1. Make sure there are no obsta-
cles under the higher platform.
2. Platforms are not level.
3. Air is in one of the slave
cylinders.
Remedy
1. Remove the obstacles blocking
the lowering phase.
2. Check and supply power to lift.
3. Check and replace the fuse after
eliminating the cause of the
short circuit.
4. Check the output voltage of the
transformer:
OUT: 24V
5. Check to see if valve coils are
getting current.
6. Unscrew the valves on the
hydraulic block one by one and
make sure they move freely
when supplied with 24V sole-
noids.
7. Check the proximetry and re-
place if necessary.
1. Remove the obstacle and care-
fully check the area before
operating the lift.
2. Should this problem occur,
check the car lift first and check
for oil leaks from the cylinders or
pipes.
3. Purge slave cylinder using the
"Purging Hydraulic Lines"
procedure in the installation
instructions.
