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G8749 Drum/Flap Sander
3. Replace the valve protective cap.
4. Slide the drum onto the spindle with the air
valve facing out, then secure it by threading
the arbor bolt with a flat washer through the
drum and into the spindle, as shown in Figure
13. Make sure to fully tighten the bolt.
Note: The left spindle uses the arbor bolt with
left-hand threads, which tightens by rotating it
counterclockwise. The right spindle arbor bolt
has right-hand threads and tightens by rotat-
ing it clockwise.
Figure 13. Installing the sanding drum.
End Cap
Arbor Bolt &
Flat Washer
5. Fully thread the end cap onto the arbor bolt to
protect the valve stem during operation.
Note: One end cap also has left-hand threads
and is mounted on the left side of the machine.
The other cap has right-hand threads for the
right side of the machine.