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TM-499 Page 42
10-7. Replacing Brushes And Cleaning Slip Rings
ST-802 524 / ST-801 842
Y Stop engine.
1 Generator End Panel
2 Brush Assembly
3 Brush Holder
4 Brushes
Remove end panel. Remove brush
assembly. Pull brushes from
holders.
Replace brushes if damaged, or if
brush is at or near minimum length.
5 Slip Rings
Visually inspect slip rings. Under
normal use, rings turn dark brown.
If slip rings are corroded or surface
is uneven, insulate brush leads,
start engine, and clean rings with a
commutator stone. Remove as little
material as possible.
Y Stop engine. Close fuel
valve.
Install brushes, brush holders, and
brush arm.
Reinstall cover.
3
1/4 in (6 mm)
Or Less − Replace
2
1
4
Tools Needed:
7/16 in − 1/2 in
(11 − 12 mm) New