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9.
TROUBLE SHOOTING
Note: Before service it is necessary to put down the prop lest the
table lowers accidentally.
Trouble
Table cannot
lift while motor
works normally
Table cannot
lift and motor
does not work
Table cannot
lower
Table's legs go
over limit
position (if
existed) while
table lowers
Table cannot
reach the
highest
position
The brand of oil is ISO HL32(such as Rando oil R＆O32、D.T.E.oil
light、Turbo32)
Cause
◇
Eyebolt has not been
removed
◇
AC voltage phrases
mistake
◇
Electromagnetic
dysfunctions
◇
The table is overloaded
◇
Lowering limit switch
(if existed) damaged
◇
Lowering limit switch or
micro-switch on safety
guard damaged
◇
Electromagnetic valve
dysfunctions
◇
Safety guard works
◇
Something wrong with
electric circuit board
◇ Internal leaking in
electromagnetic
valve
◇ Packing damaged
in hydraulic cylinder
◇
Oil not enough
◇
Limit switch damaged
Remedy
◇ Remove eyebolt
◇ Correct AC voltage
phase
◇ Check the function of
electromagnetic valve
and repair it
◇ Remove excessive
load
◇ Replace limit switch
◇ Replace lowering limit
switch or micro-switch.
◇ Check the function of
electromagnetic valve
and repair it
◇ Strike the UP button
slightly
◇ Replace electric circuit
board
◇ Repair electromagnetic
valve and if necessary
replace it
◇ Check and replace
packing
◇
Fill enough oil
◇
Check and repair limit
switch. If necessary, replace
it
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