13
Electric lowering
：
No lifting. the principle is same as Hand lowering truck. Electric lowering adds a lifting Limit switch to
the lifting circuit. If there is no lift, in addition to the above steps for troubleshooting, you can check
whether the limit switch work properly or not 2
、
No lowering. can be check as below steps:
This
is
plug
for
drop
solenoid
valve
. Use
Multimeter
to
Measure
Whether
there
is
a
24V
voltage
between
grays line
&
black
line
when
you
press
the
down
Button
. If
yes
, it
should
be
the
lowering
valve
body
failure
,
replace
it
. If
there
is
no
voltage
. Please
measure
whether
the
down
button
works
properly
or
not
.
The truck cannot power on, measure the battery voltage if normal or not.
Follow steps below:
1.
2. Observe
whether
the
fuse
is
blown.
Battery
charging
:
1.
Measure the voltage between these
two-part shown on the red circle. it is
for battery voltage. Check if the
voltage normal or not
2.
If there is no voltage. Then pull the
battery plug out .and measure the
battery voltage from the plug
(positive pole & Negative pole.
When charging. This switch needs to be
turned on. If the battery fails to charge,
measure whether the battery voltage is
normal.
