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OM-198 683 Page 20
SECTION 4 – MAINTENANCE &TROUBLESHOOTING
4-1. Routine Maintenance
Y Disconnect power
before maintaining.
. Maintain more often
during severe conditions.
3 Months
Replace unreadable labels
Repair or replace
cracked weld cable
Clean and tighten weld terminals
6 Months
Blow out or vacuum inside.
OR
Remove drive roll and
carrier. Apply light coat
of oil or grease to drive
motor shaft.
4-2. Circuit Breaker CB1
1 Circuit Breaker CB1
If CB1 opens, wire feeding stops.
2 Circuit Breaker CB2
Overcurrent at pin D of receptacle
RC7 will cause CB2 to open.
3 Welding Gun
Check gun liner for blockage or
kinks.
4 Wire Drive Assembly
Check for jammed wire, binding
drive gear or misaligned drive rolls.
Allow cooling period and reset
breaker. Close door.
3
802 475-A / Ref. 800 797-C
4
1
2
4-3. Unit Overload
Thermostat TP1 in rectifier Z1 protects the unit from damage due to overheating. If TP1 opens, wait several minutes
before trying to weld.