REV. 01 2012
29 / 30
CHAPTER 10 - TROUBLESHOOTING
A list of possible problems and solutions are given below:
T
ROUBLE
: P
OSSIBLE
C
AUSE
: S
OLUTION
:
The main switch is not turned on
Turn the switch on
The lift does not work
There is no power
Check power and restore if
necessary
The electrical wires are
disconnected
Replace
Fuses are blown
Replace
One of limit switches is faulty.
Check the switch and relevant
connection for proper operation.
Replace, if needed.
The lift does not raise
when the lifting button
is pressed
The motor direction of rotation is
not correct
Interchange the phases on the main
switch
The oil in the hydraulic unit is not
sufficient
Add some hydraulic oil
The lifting button is faulty
Check UP button and connection
for proper operation. Replace, if
needed
The lowering solenoid valve does
not close
Check and clean, if dirty, or replace,
if faulty
The emergency screw of lowering
valve does not close
Retighten the screw
The suction pump filter is dirty
Check and clean if needed
The lift does not lower
when the lowering
button is pressed
The motor does not operate properly
and does not release the mechanical
safeties
Check the motor
The lift goes up instead of going
down
-Because safety air valve is faulty
Replace air valve
-Because the air does not reach the
circuit
Verify the compressor and air hose
ability
-Because electric board is faulty
Replace electric board
The lowering solenoid valve does
not discharge
Verify if it is powered and check
the magneto for damages (replace if
disconnected or burnt)
The lowering solenoid valve is not
operating
Verify if it is powered and check
the magneto for damages (replace if
disconnected or burnt)
The lowering button is faulty
Check the lowering button and
connection for proper operation.
Replace, if needed
The lift does not stop at
the safety height
The safety height limit switch is not
adjusted correctly or it is faulty
Adjust or change the limit switch
The electric board is not operating
Replace electric board
The motor does not operate properly
and does not release the mechanical
safeties
Check the motor
Содержание SLP-7K
Страница 10: ...REV 01 2012 11 30 Figure 2 LAYOUT ...