20 - MAINTENANCE
EN
Pag.
40/44
- Cap.
20
THIS MANUAL IS PROPERTY OF SCM INDUSTRIA S.P.A - ANY TOTAL OR PARTIAL REPRODUCTION IS STRICTLY FORBIDDEN
20.37
TROUBLES - CAUSES - WHAT TO DO
(ev_20-37_0.0)
This section indicates how to solve problems which may rise during the machine use.
Carry out interventions only after carefully reading all that concerns the problem indicated in this handbook.
For problems not described in the handbook apply to SCM Technical Service.
PROBLEM
CAUSE
REMEDY
The machine does not start
No electrical energy on one or more
phases of the line.
Check with a tester there is voltage
in the three phases.
The fuses of the auxiliary circuit are
interrupted or the fuse block cover is
open.
Close the fuse block cover (located
inside electric cabinet ).
If the machine does not start:
1- Open the fuse block cover.
2- Check the integrity of fuse, if
necessary, replace them.
3- Adjust the braking unit as
described in section 20.8.
Emergency on.
Switch off the button by turning it.
(U.S.A. and CANADA version).
Blade belt change zone cover open.
Close the cover.
(U.S.A. and CANADA version).
Guards not in right position.
Check that the guards are in right
position:
- planer: all tables closed and tipper
open.
- thicknesser: tipper closed.
Overload switch (
A
fig. 20.37A)
triggered because of:
- an excessive absorption of current
due to improper machine use ( task
too heavy for power of machine)
- insufficient cable size for power of
machine (see electrical connection
references in chap. 4)
- voltage failure due to excessive
power supply cable length
- short circuit in electrical system.
Solve the problem, wait for the
overload switch to cool down and
restart the machine.
(U.S.A. and CANADA version).
Moulder motor brake off.
Turn 5-positions selector switch (
B
fig. 20.37A)
to operate the motor
of the selected working unit.
(U.S.A. and CANADA version).
Main switch (
T
fig. 20.37A)
turned
to “
0
” (OFF).
Turn it to “
I
” (ON).
The machine stops during
machining.
No electrical energy on one or more
phases of the line.
Check with a tester there is voltage
in the three phases.
The fuses of the auxiliary circuit are
interrupted or the fuse block cover is
open.
Close the fuse block cover (located
inside electric cabinet ).
If the machine does not start:
1- Open the fuse block cover.
2- Check the integrity of fuse, if
necessary, replace them.
Too heavy operation in relation to
the power of the motor.
Wait for the cooling of the thermal
cut out protection.
Reactivate it after a few minutes.