Miller S-75DA Manuale d'uso - Pagina 27

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SECTION 7 − MAINTENANCE AND TROUBLESHOOTING

7-1. Routine Maintenance

n = Check
Every
3
Months
l Unreadable Labels
n 14-Pin Cord
Every
6
Months
Or
~ Inside Unit

7-2. Brush Inspection And Replacement

2
~ = Clean
l = Replace
~ Weld Terminals
n Gas Hose and Fittings
~ Drive Rolls
3
Y Disconnect power before maintaining.
nl Weld Cable
nl Motor Brush
n Gun Cable
Y Do not disassemble motor field mag-
1
2
Remove brush cap.
3
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.
1
Reference
Section 5-2,
5-3
Section 5-2,
5-3
Section 5-7
nets or injury/equipment damage may
occur.
Motor
Brush Cap
Brush
Tools Needed:
OM-223 605 Page 23
137 390-B