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G8749 Drum/Flap Sander
-13-
Reversing Sleeve Rotation
The sanding drums are shipped with 120 grit
sanding sleeves already installed. The sleeve
rotations are configured so that the large diameter
drum is mounted on the right side of the sander
and the smaller drum is mounted on the left.
If you want to change the mounting location of the
drums from the positions above, you must remove
the sanding sleeve and turn it around so that the
sleeve rotation matches the spindle rotation.
To reverse the sleeve rotation:
1. DISCONNECT SANDER FROM POWER!
2. Remove the protective cap on the air valve,
then push the valve stem to release all of the
air pressure from the drum (see Figure 11).
3. Remove the sleeve from the drum, turn it
around, then slide it back onto the drum.
4. Hold the mounted sleeve up to the spindle
that you will be installing them on, then make
sure the sleeve rotation arrows and the rota-
tion arrow on the spindle housing match.
Always check the sanding
drum air pressure before
using it. Only use a
hand-operated air pump
to inflate the sanding
drum to 10 PSI. If the
drum is over-inflated,
the drum may burst with
considerable force, which
could cause serious
personal injury.
Mounting Sanding Drum
It is important that the air pressure of the sanding
drum be maintained at 10 PSI to safely hold the
sanding sleeve in place.
To check air pressure and mount the sanding
drum:
1. DISCONNECT SANDER FROM POWER!
2. Remove the air valve protective cap, then
use a quality air pressure gauge to check the
drum air pressure, as shown in Figure 12.
— If the drum air pressure is more than 10
PSI, push the valve stem in to reduce the
air pressure. Use the gauge to recheck the
pressure.
— If the drum air pressure is less than 10 PSI,
use a hand-operated air pump to inflate the
sanding drum to 10 PSI.
Figure 12. Checking sanding drum air pressure.
Figure 11. Matching the sleeve rotation with the
spindle rotation.
Air Valve
Spindle Rotation Arrow
Sleeve Rotation Arrow