Miller Electric Miller DU-OP Manual

A SERVICE OF

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OM-494 Page 40

8-9. Inspecting And Cleaning Optional Spark Arrestor Muffler

Ref. 800 633-B / Ref. 190 377

Y Stop engine and let cool.

1 Spark Arrestor Muffler

2 Cleanout Plug

Remove plug and remove any dirt

covering cleanout hole.

3 Exhaust Pipe

Start engine and run several min-

utes to blow out cleanout hole. If

nothing blows out of hole, briefly

cover end of exhaust pipe with fire-

proof material.

Y Stop engine and let cool.

Reinstall cleanout plug.

Tools Needed:

3

2

1

3/8 in

8-10. Checking Generator Brushes

Ref 217 359-A / S−0233−A

Y Stop engine and let cool.

1 Generator Brush With Spring

Mark and disconnect leads at brush hold-

er cap. Remove brushes.

Replace brushes if damaged or if brush

material is at or near minimum length.

1

1/2 in (13 mm)

Minimum Length

1-1/8 in (28.6 mm)

New Length

Replace

Damaged

Brushes