Miller Electric SS-75S12 - Manual (Page 27)

OM-230 298 Page 23
SECTION 6 − MAINTENANCE AND TROUBLESHOOTING
6-1. Routine Maintenance
Y Disconnect power before maintaining.
n = Check ~ = Clean l = Replace Reference
Every
3
Months
Section 4-5,
4-6
l Unreadable Labels ~ Weld Terminals nl Weld Cable nl Motor Brush
Section 4-5,
4-6
n 14-Pin Cord n Gas Hose and Fittings n Gun Cable
Every
6
Months Or
Section
4-11
~ Inside Unit ~ Drive Rolls
6-2. Brush Inspection And Replacement
Y Do not disassemble motor field mag-
nets or injury/equipment damage may
occur.
1 Motor
2 Brush Cap
Remove brush cap.
3
Brush
Replace brush if it becomes chipped or bro-
ken, or if less than 1/4 in. (6.4 mm) of brush
material remains. 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.
137 390-B
Tools Needed:
1
2
3