Grizzly G0866, Руководство пользователя, Страница: 51 / 100

Model G0866 (Mfd. Since 11/18)
-49-
Adjusting Oscillation
Timing & Speed
The oscillation adjustments have been performed
at the factory and should require no further
attention. However, we recommend verifying the
settings.
When the oscillation is correctly adjusted, the
sanding belt oscillates to the left and to the right
at the same speed. If the sanding belt makes con-
tact with a limit switch, as shown in
Figure 74, the
emergency braking system will activate and stop
the sander immediately.
Sanding Belt
Limit
Switches
Sander Outline
(Top View)
Figure 74. Improper oscillation.
1. Confirm sanding belt is properly installed and
tensioned and air supply is ON.
2. Turn sanding belt ON.
— If belt oscillates without contacting limit
switches, but oscillation time to left and
right is not equal, proceed to
Equalizing
Oscillation Speed, on Page 50.
— If belt tracks away from air fork and air
jet, colliding into limit switch, proceed to
Setting Correct Airflow.
Figure 75. Oscillation components.
An adequate stream of air through the air fork gap
is essential for proper oscillation (see
Figure 75).
If the jet of air is weak through the gap, the belt
will track away from the controller and into the limit
switch on the opposite end of the roller. The pivot
action of the upper roller, and the resulting oscil-
lation of the belt, are dependent upon adequate
airflow through this air fork gap.
Setting Correct Airflow
Checking Sanding Belt Oscillation
These adjustments should be made with
care, as current sanding belt oscillation
and timing settings can only be observed
when doors are open and sanding belts are
moving.
To reduce risk of shock or
accidental startup, always
disconnect machine from
power before adjustments,
maintenance, or service.
To set correct airflow through air fork:
1. Remove sanding belt and turn belt tension
knob to tensioned position.
Oscillation
Controller Gap
Air Fork &
Air Jet