Inspecting And Cleaning Optional Spark Arrestor Muffler; Checking Generator Brushes - Miller DU-OP Owner's Manual

8-8. Inspecting And Cleaning Optional Spark Arrestor Muffler

3
2
Tools Needed:
3/8 in

8-9. Checking Generator Brushes

1
1/2 in (13 mm)
Minimum Length
Replace
Damaged
Brushes
!
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.
!
Stop engine and let cool.
Reinstall cleanout plug.
!
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.
1-1/8 in (28.6 mm)
New Length
1
Ref. 800 633-B / Ref. 225 543
Ref 225 543 / S−0233−A
OM-225 590 Page 47