Maintenance - Rotabroach CM/330C Operating Instructions Manual

Issue 9

[7] MAINTENANCE

To be conducted only by authorised personnel
In order to ensure that the unit is used to its full efficiency there are a few basic maintenance needs to
observe. A regular check out of the machine will also ensure a prolonged «life» for the cutters and easier
operation.
Before proceeding with any maintenance work be certain that the pneumatic supply is disconnected
ADJUSTMENT OF SLIDE AND ARBOR SUPPORT BRACKET
An essential requirement of the machine is that the slide which controls the movement of the cutter, can move
in a smooth and controlled manner, free of lateral movement and vibration.
This situation can be maintained by periodic adjustment of the slide and is accomplished in the following
manner:

Place the machine in a vertical position and, by means of the capstan, raise the slide to its highest
position, thus exposing the maximum possible amount of the vee slideway. Clean the slideways
thoroughly and apply a small amount of light machine oil to the wear surfaces.

Now drop the slide to its lowest position within the main housing and loosen screws, thus allowing
free movement of the arbor support bracket.

With the hexagonal key located and commencing with the two inner screws, gently feed in all the
screws until slight resistance is encountered.

Operate the slide up and down a few times to test the movement and make any further necessary
adjustments. Try to ensure that all the screws are exerting a uniform pressure on the slide from top
to bottom.

A perfectly adjusted slide will operate freely up and down without any sideways movement.

Now, using fingers only, tighten the screws holding the arbor support bracket.

Place the machine on a steel plate, connect to supply and activate the magnet. Start up the motor. If
the arbor is incorrectly aligned, the arbor support bracket will be seen to oscillate. Many any
necessary further adjustments to the bracket to ensure correct alignment of the spindle and finally
tighten the screws using a hex key.
Original Version
9
December 2011