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MAINTENANCE
6. MAINTENANCE
The BERNA BIT key cutting machine requires no particular
maintenance plan. Nonetheless, certain parts should be
checked regularly and eventually replaced once they become
worn. This particularly includes the cutter, the brush, the
tracer and the belt.
Maintenance operations should be carried out by qualified
professionals with the necessary protective equipment for
working safely. The instructions provided in this manual should
be followed carefully when performing any maintenance tasks
and the following instructions should be followed in general:
The machine should be switched off
and disconnected from the power
supply before starting any maintenance
operations. The operator should make sure
that nobody can access the machine
Do not perform any maintenance
operations while the machine is running.
Original spare parts should always be
used. The CE mark is only guaranteed
when original spare parts supplied by the
manufacturer are used.
After replacing a component, make sure
that the corresponding screws are in their
correct position.
NEVER USE COMPRESSED AIR! We
recommend using the small brush
supplied with the machine for keeping the
clamps and carriage assembly free from
metallic swarf.
We recommend using protective oil
(WD40 or similar) to protect the metal
parts of the machine against oxidation,
applying oil to the clamps, tracer, rails,
etc.
6.1 BRUSH REPLACEMENT
See Figure 9
The brush should be replaced when it can no longer
reBERNA BIT burrs.
Follow the steps below to do so:
Switch off the machine and unplug the
power cord.
1) Use a Nº 4 Allen key to release the two screws holding the
protective shield (14) in place and reBERNA BIT it to gain
better access to the work area.
2) Insert the Nº 6 Allen key into the cutter spindle axis to
secure it in place.
3) Use the Nº 4 Allen key to release the screw holding the
brush (10) in place.
4) Replace the brush.
6.2 CUTTER REPLACEMENT
See Figure 10
The cutter should be replaced when it becomes worn. Do so
as follows:
Switch off the machine and unplug the
power cord.
1) Use a Nº 4 Allen key to release the two screws holding the
protective shield (14) in place.
2) ReBERNA BIT the cutter protective shield (14) for better
access to the work area.
3) Insert the Nº 6 Allen key into the cutter spindle axis to
secure it in place.
4) Using the 18 mm spanner, release the nut holding the
cutter (1) in place. Bear in mind that this is a reverse-thread
bolt.
5) Carefully clean the new cutter and all areas that will come
into contact with it.
6) Replace the cutter.
7) Ensure that the cutter is securely in place and facing the
correct direction (it rotates clockwise).
8) The machine should now be re-adjusted as shown in this
manual (see Depth Adjustment).
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