Apex Digital EZ Sander EZ3760M, Руководство по эксплуатации, Страница: 15 / 71

15
Adjustments
Sanding Belt Tracking and Oscillation
The sanding belt should oscillate left and right
without a tendency to slide off the rollers. If the
sanding belt runs outside of the normal track, it
will contact a limit switch and the machine will
stop automatically.
The oscillation settings have been made at the
factory, but should be checked by the operator.
NOTE : When a new sanding belt is installed,
there may be a slight length tolerance between
the right and left sides of the sanding belt which
may result in incorrect tracking. If this occurs,
the oscillation timing can be set to compensate.
1. Turn off belt tension switch and center the
sanding belt , turn belt tension switch back on.
Now turn the Head Set-Up switch to the right,
oscillation adjustment is done while abrasive belt
is running. (see Figure 6).
2. The upper roller will pivot left and right. The
dura
tion of the sanding belt’s oscillation to
the right side and to the left should be equal.
For example, if the oscillation time to the
right is one second, then the oscillation time
to the left should also be one second.
3. If oscillation time is unequal when comparing right
and left sides, adjustment is needed. To adjust, turn
the tracking lever either right or left. This will adjust
the tracking movement right or left; Do this until proper
timing is achieved.
(see Figure 7)
4. It is possible that when changing to new belt
or changing to a belt that has a heavier backing
which is different from 50 to 180 grit, you may have
to follow the above instructions.
Figure 7
Tension switch
Tracking
adjustment
lever