Section 6 − Maintenance And Troubleshooting; Routine Maintenance; Brush Inspection And Replacement - Miller 300741 Owner's Manual

SECTION 6 − MAINTENANCE AND TROUBLESHOOTING

6-1. Routine Maintenance

n = Check
* To be done by Factory Authorized Service Agent
3 Months
l Unreadable Labels
nl Cords
6 Months
~ Drive Rolls

6-2. Brush Inspection And Replacement

3
2
Tools Needed:
OM-247517 Page 16
Z = Change ~ = Clean
~ Weld Terminals
nl Gun Cables
OR
~ Inside Unit
!
Disconnect power
before maintaining.
l = Replace
l Damaged Gas Hose
nl Cracked Parts
1
1/4 in. (6 mm)
Minimum Length
5/8 in. (16 mm)
New Length
Replace
Damaged
Brushes
.
Maintain more often
during severe conditions.
nl Weld Cables
1 Motor
2 Brush Cap
Remove brush cap.
3 Brush
Replace brush if it becomes
chipped or broken, or if less than
1/4 in. (6.4 mm) of brush material is
left. Do not include spring boss as
part of the 1/4 in measurement.
Install brush so that curved surface
on end of brush matches curve of
motor, and secure with cap.
Repeat procedure for other brush.
Ref. 137 390-C / S-0816
Reference