15. replacing brushes and cleaning slip rings – Miller Electric Legend AEAD-200-LE User Manual

Page 34

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TM-428 Page 30

Miller Legend

6-15. Replacing Brushes And Cleaning Slip Rings

A. Checking Brushes And Cleaning Slip Rings

ST-800 698-A / Ref. ST-115 942-F / S-0233-A

Stop engine and allow to cool.

1

Brush Holder Retaining Bar

2

Brush Holder Bracket

Remove brush holder bracket.
Keep hardware for reinstallation.

3

Brush Holder

4

Brush With Spring

5

Brush Holder Cap

Mark and disconnect leads at
caps, and remove brushes from
bracket.

Replace brushes if damaged, or if
brush is at or near minimum length.

6

Slip Rings

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. Stop en-
gine.

Install brushes, bracket, and re-
maining generator parts. Adjust
brushes as shown in Section B.

Reinstall both side panels and top
cover.

Tools Needed:

1/2 in

5/16 in. (8 mm)

Minimum Length

9/16 in. (14.3 mm)

New Length

Replace

Damaged Brushes

2

1

4

3

5

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