Ferplast HY1001, Инструкция по эксплуатации

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9
8.TROUBLE SHOOTING
Note: Before service it is necessary to screw two eyebolts into relevant
screw-holes on the basis lest the table lowers accidentally
Trouble Cause Remedy
Table cannot
lift while
motor works
normally
◇
Eyebolt has not been
removed
◇
AC voltage phrases
mistake
◇
Electromagnetic
dysfunctions
◇
The table is overloaded
◇
Remove eyebolt
◇
Correct AC voltage phrase
◇
Check the function of
electromagnetic valve and repair
it
◇
Remove excessive load
Table cannot
lift and motor
does not
work
◇
Lowering limit switch (if
existed) damaged
◇
Replace limit switch
Table cannot
lower
◇
Lowering limit switch or
micro-switch on safety guard
damaged
◇
Electromagnetic valve
dysfunctions
◇
Safety guard works
◇
Something wrong with
electric circuit board
◇
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
Table’s legs
go over limit
position (if
existed)
while table
lowers
◇
Internal leaking in
electromagnetic valve
◇
Packing damaged in
hydraulic cylinder
◇
Repair electromagnetic
valve and if necessary replace it
◇
Check and replace packing
Table cannot
reach the
highest
position
◇
Oil not enough
◇
Limit switch damaged
◇
Fill enough oil
◇
Check and repair limit
switch. If necessary, replace it