MAINTENANCE
CAUTION:
Maintenance and repairs performed by
unauthorized personnel could result in damage or injury. Maintenance and
repairs performed by unauthorized personnel will void your warranty. Failure
to perform maintenance at recommended intervals may void warranty.
Carbon Brushes
Inspect all four brushes every 6 months or 250 hours. Access to the brushes
is gained through the front and back motor vent plugs and under both motor
covers (fi gure 7). Press tab on spring clip assembly in, rotate, then remove
(fi gure 8).Use needlenose pliers to disconnect the shunt wire. If any brush
has worn to 3/8" in length or shorter, replace the entire set.
CAUTION:
Use only motor brush PN 40818A or PN 40055A
with shunt wire or motor failure will occur.
When replacing the brushes make sure that the brush seats against the
commutator, the spring rest in the recess of the brush, and the brush is
free to travel. When returning the switch cover, keep any wires clear of the
commutator and any pinch site.
To Change The Lubricant In The Gearbox
To change the lubricant in the gearbox, follow this procedure:
1. Put the machine upside down on a bench.
2. Align one of the two holes in the rubber pad with one of the three holes
in the rotating wall guard.
3. Align both holes with one of the three screws in the gear housing cover.
Remove the screw from the gear housing cover. (Figure 9)
4. Align the holes with each of the other two screws, then remove screws.
CAUTION:
Make sure no dust enters the gear box. Damage
will occur to the gear box.
5. Remove the cover from the gear housing.
6. Remove the old lubricant from the gearbox.
7. Add six ounces of American SandersTechnology lubricant to the gear
box.
CAUTION:
To prevent damage to the motor, do not add more
than six ounces of lubricant to the gearbox.
8. Using the three screws removed above, install the cover on the gear
housing.
9. Start the machine and let it run for 15 minutes. A small amount of
excess lubricant should fl ow out the vent hole. If none appears it may
be necessary to add additional lubricant.
10. Wipe off excess lubricant and clear vent hole.
American Sanders Operator's Manual (EN) - Super 7R DC
Clarke
®
ENGLISH
EN
Figure 7
Figure 8
Lubricants
Qty
Part No.
1Qt.
16610A
1Gal.
16611A
Figure 9
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