Operating manual - English
UNOCODE PRO
Copyright Silca 2017
73
8
MAINTENANCE
ATTENTION: for repairs or replacement of parts for maintenance, the ‘CE’ mark is guaranteed only if original spare
parts provided by the manufacturer are used.
Although the UNOCODE PRO key-cutting machine does not require special maintenance, it is advisable to check and, if
necessary, replace the parts subject to wear and electric/electronic parts (fuses, circuit boards, etc.) in the event of faulty
operation.
ATTENTION: for normal servicing of the burnished mechanical parts, we recommend using lubricants or protective
oil, e.g. WD40 or similar. Do not apply to the parts used for electrical contact (clamps, decoders, cutters, gauging tem-
plates, etc.). Do not contaminate the electronic parts with the oil.
Replacement is simple and can be carried out by the operator consulting the instructions.
Before starting any type of maintenance (controls or replacements), read the instructions below:
• never carry out maintenance with the machine switched on
• always remove the main power supply cable
• strictly follow all the instructions in the manual
• use original spare parts (see Spare Parts sheet provided).
8.1 T
ROUBLE
SHOOTING
FAULT
PROBABLE CAUSE
Machine is on, with no
message on its display:
check to see if the back fan is working
Not working
a) emergency button activated
b) general fuses in the power socket are faulty
Working
a) fuse F3 on electronic control board is faulty
b) connection wire between display and electronic circuit board loose
c) defective display
cutter motor not working:
a) the closed protective shield is not making proper contact with the safety microswitch (fig. 43).
b) the F1 fuse on the electronic control board is faulty
c) motor wire not properly attached to the connector
d) defective electronic control board
e) motor cut-off
WARNING: this may derive from inappropriate or heavy use of the key-cutting machine or a fault with the motor itself.
DO NOT USE THE MACHINE and call Technical Silca Dept. to determing the cause of activation of the cut-off.
X, Y and B axes motors are
not working
None of the motors
working:
a) fuse F2 on the electronic control board faulty
b) the wiring between the transformer and electronic control board is loose or the connec-
tor is not seeded properly.
c) defective electronic control board
Only one motor is not
working:
a) the connection wires between the motor and the electronic control board are loose or the
connector is not seeded properly
b) defective electronic control board
Protective shield is closed but
the display reads “‘close
shield”
a) the closed protective shield is not making proper contact with the microswitch (D3) (fig. 43)
b) the F4 fuse on the electronic control board is faulty
Keyboard not working
(partially or completely)
a) the keyboard connector is not properly connected to the interface board (fig. )
b) the wiring between the keyboard/display unit and electronic control board is not properly attached to the relative con-
nectors
c) defective keyboard
d) defective electronic control board
Electric contact not working
(during calibrating or cutting)
a) wiring between the J14 connector on the electronic control board and cutter shaft is loose or disconnected
b) wiring inside the Y axis carriage is not seeded properly or disconnected
c) defective electronic control board
d) wear on the brushes (8.12, page 84)
