Brush Cover
Figure 54. Conveyor motor brush cover.
Figure 55. Carbon brush and spring.
DRUM SANDPAPER
CIRCUMFERENCE = HYPOTENUSE
TAPER ANGLE
Figure 56. Finding sandpaper taper angle.
Brush Replacement
After long periods of heavy sander use, it may be necessary to replace the conveyor motor carbon brushes.
To replace the carbon brushes, do these steps:
1.Unplug the double drum sander!
2.Raise the table to the highest position.
3.Use a
4.Carefully slide out the spring and carbon brush. See Figure 55.
5.Insert the new carbon brush exactly like the old one was installed.
6.Replace the brush cover.
7.Repeat Steps 1 through 6 for the other motor brush on the other side of the motor.
Sandpaper
Replacement
The Model W1678 Double Drum Sander is designed for rolls of 3" wide
To change the sandpaper, do these steps:
1.Unplug the double drum sander!
2.Open the dust hood to expose the drums.
3.Observe the direction that the sandpaper is wrapped around the drum, and unwind the old sandpaper one drum at a time.
4.Use the old sandpaper as a pattern to cut out the new sandpaper, or measure and cut the sandpaper taper yourself. See Figure 56.
5.Tightly wrap the sanding drum with the new sandpaper and keep the gaps to a minimum.
6.Apply two complete passes of 3⁄4" reinforced strapping tape at both drum ends, making sure that the second layer is directly on top of the first.
7.Replace the sandpaper on the other drum, and close and latch the dust hood.
MAINTENANCE