23
The sanding belt is tensioned by the central belt
tension piston. The piston is activated by the
sanding belt tension switch. This switch must be
activated prior to starting the sander.
The sanding belt oscillates along the top and
bottom rollers. This greatly enhances the
performance of the sander and reduces the
chances of lines and marks on the job.
To achieve this oscillation, the top roller pivots
about a central air cylinder (
1
). This air cylinder
also keeps pressure on the belt and keeps it tight
to the rollers.
The pivoting is controlled by a non-contact air
sensor (
4
). Should the sanding belt break, a micro switch (
3
)
is activated and stops the machine. If the oscillation is
excessive or the sanding belt runs off center, the sanding
belt will hit one of the two ceramic rollers (
2
). The rollers are
attached to micro switches that stop the machine. The
sensitivity of the non-contact air sensor can be adjusted by
rotating the control knob (
5
). This has been factory set and
should not need adjustment. The speed of the belt
oscillation can be increased or decreased by adjusting the
control knob (
6
).
The sanding belt is centralized on the rollers by adjusting
the sanding belt centralizing cam. This will have to be done
for every belt, as each belt will run differently.
Electronic control panel
The control panel is set on the front of the machine. It has a
number of switches.
1.
Bed up/down buttons.
2.
Sanding belt start/stop buttons.
3.
Conveyor start/stop buttons.
4.
Emergency stop switch (
twist to release
).
5.
Power indicator light.
Sanding belt oscillation adjustment
1.
With no sanding belt fitted, restrict the airflow across the sensor
(U) with a piece of wood or something similar.
2.
The top roller should pivot, and when the obstruction is
removed, the top roller should pivot back to the original position.
3.
Check that the roller pivots a few times.
Sanding belt tension switch
Sanding belt
1 2 3 4
5 Control panel
Содержание MSANWB25X60-1K-7.5-0197
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