Troubleshooting
45
12ASL
Troubleshooting
A list of possible troubles and solutions is given below:
TROUBLE:
POSSIBLE CAUSE:
SOLUTION:
The lift does not
work
The power switch is not
turned on
Turn the switch on
There is no power
Check power and restore if
necessary
The electrical wires are
disconnected
Connect
Fuses are blown
Replace
The one of limit switches is
faulty.
Check the switch and
relevant connection for
proper operation. Replace, if
needed.
The lift does
not raise when
UP 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 suf
fi
cient
Add some hydraulic oil
The UP 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
Re-tighten the screw
The suction pump
fi
lter is dirty Check and clean if needed
The lift does
not lower when
DOWN button is
pressed
The motor does not operate
properly and does not release
the mechanical safeties
Check the motor and
pneumatic system