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OM-808 Page 20
4-8. Sequence Of Shielded Metal Arc Welding (SMAW)
Begin Welding
ssb7.1 9/92
Install &
Connect
Equipment
Select
Electrode
Put On
Personal Safety
Equipment
Set Controls
Insert
Electrode
Into Holder
Turn On
Welding Power
Source
4-9. Sequence Of Gas Tungsten Arc Welding (GTAW)
Turn On
Shielding Gas
ssb8.1* 12/92
Install &
Connect
Equipment
If Applicable,
Install High_
Frequency Unit
Select
Tungsten
Insert
Tungsten
Into Torch
Put On
Personal Safety
Equipment
Set Controls
If Applicable,
Turn On High-
Frequency Unit
Turn On
Welding Power
Source
Begin Welding
SECTION 5 – MAINTENANCE & TROUBLESHOOTING
5-1. Routine Maintenance
Ref. ST-124 643-A
3 Months
Turn Off all power before maintaining.
Tape Or
Replace
Cracked
Cables
Replace
Unreadable
Labels
Clean
And
Tighten Weld
Connections
6 Months
OR
During Heavy Service,
Clean Monthly
Blow Out
Or
Vacuum
Inside