12
There are many kinds of grinding belts. Therefore, it is important to choose the
correct belt type and grit. Pay attention to the material the work piece is made of.
You can then vary the grit size grinding belt material and glue.
In this connection we inform that there are also different contact wheels with
various softness and shape for different purposes.
3.3
Maintenance of belt arm
Regularly empty the spark box (A) (see
fig.: 3.3
) to prevent hot sparks in destroying or
deforming the grinding belt and contact wheel. If the machine is equipped with a KU-
exhaust system, please check if the suction channels need cleaning. The dust bag is
emptied or changed whenever necessary. The contact wheel (B) must be replaced if
the edges are too rounded, or the rubber is defective. Change the graphite pad (C) on
the grinding surface whenever necessary.
Fig.: 3.3
When replacing the contact wheel dismount the grinding belt (D) as described above.
The nut (E) is unscrewed, and the flange (F) is dismounted with the contact wheel (B).
The new contact wheel (B) is mounted in reverse order.
3.4
Operating the belt arm
Grinding at the belt arm can take place at the contact wheel or on the surface
grinding table. It is also possible to dismount the rinding surface table and grind on
the grinding belt alone. Lead the work piece towards the grinding belt and avoid
excessive pressure or strokes. Always use a light but firm pressure to avoid
destroying the grinding belt and overloading the motor.