27
28
2
.
Unable to lift
3
.
Unable to lower
Rewire the switch,
replace it if necessary
Check and replace the
solenoid valve
Make sure the power switch is turned on, the battery is sufficient and the emergency stop button is pushed.
then follow these steps to check the equipment:
Trouble shooting
Make sure the power switch is turned on, the battery is sufficient and the emergency stop button is pushed.
then follow these steps to check the equipment:
Press the raise button,
listen to the sound of motor
Is it normal
No
Yes
Yes
No
No
Yes
Yes
No
No
Yes
Yes
No
Yes
No
Yes
No
No
Yes
Check
the
instruments
to see if the battery
capacity
is
sufficient
Check
if the lifting
limit proximity
switch and wiring
is normal
Rewire the switch,
replace it if
necessary
Is it normal
Unload
the vehicle
Charge the
battery
Press the raise button,
measure the voltage on both
ends of the pump motor
Check the hydraulic
reservoir
Is the oil
sufficient
Add oil
Check the hydraulic
proportional valve,
repalceit as appropriate
Is it 24V
Check the pump
motor, replace it as
appropriate
Check
if the raise
switch and its wiring
are normalIs the
wiring
normal
Fault of controller
Press the lower switch, check the
voltage on both ends of the solenoid valve
Is it 24V
Check wiring of the
lower switch
Is it
connected
properly
Rewire the switch
Check the switch
and replace it if
necessary
T12 Series Electric Stackers
Trouble shooting