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5. SIMPLE TROUBLE SHOOTING GUIDE
Trouble
a. Main power isn't ON or power
b. Power indicating lamp isn't ON
c. Fuse breaks.
1.Machine
d. Emergency switch of main
doesn't
work.
e. Hydraulic pump doesn't start &
f. Hydraulic pump reverses.
g. Hydraulic oil amount isn't
sufficient.
a. The setting safe current ampere is
2. Machine
b. band saw is blunt, so load is
suddenly
stops while
c. The controlling line isn't well
working.
a. 3-phase of main power isn't
b. Overload protective electronic
c. Solenoid switch isn't well
3. Main
d. Motor switch is damaged.
motor
e. Motor itself is burnt out or
don't work.
Cause
isn't well connected.
and transformer is burnt out.
control panel doesn't return to
origin.
doesn't have working pressure.
too low.
increased and hence causing
current rising to the setting safe
current.
connected.
complete.
board is burnt out.
connected. There is any
connecting point blocked.
defective.
a. Check main power's wiring and turn the power
switch to ON.
b. First check transformer and see if input pressure has
normal pressure. If no out-put pressure, that means
the inside is burnt out. Please replace with new
transformer.
c. Check by eyes if fuse breaks or check voltmeter. If
fuse breaks, replace it with new one in the same
specification.
d. Turn the emergency switch as per the arrow to let it
return.
e. Start the hydraulic pump.
f. Change its running direction.
g. Replenish hydraulic oil.
a. Re-set the proper current. The normal setting is
zero-load current + 2 amperes.
b. Replace saw blade.
c. Check 220V wiring. If line's terminal loosens because
of vibration while cutting, please tighten the terminal.
a. Check if the power supply (3-phase supply) is correct.
b. Use voltmeter to measure if 3-phase output from
electronic board is normal. If shortage of 1 phase, that
means the electronic board is burnt out. Replace it.
c. Use voltmeter to measure if 3-phase connecting
points of solenoid switch ( "a" points) are all well
connected. If there is one point disconnected, that
means solenoid switch is damaged. Replace it with
the same specification.
d. Use voltmeter to measure if connecting points of
motor switch (ON/OFF) is normal or directly remove
motor switch and then connect to motor. If motor runs
normally, that means the switch is damaged.
e. Use voltmeter to measure if 3-phase power is normal.
If normal, that means motor itself has a problem.
Replace or repair it.
16
Action
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