SECTION 4 – MAINTENANCE AND TROUBLESHOOTING
4-1. Routine Maintenance
Y Disconnect power before maintaining.
3 Months
Replace unreadable labels.
Repair or replace cracked weld cable.
Clean and tighten weld terminals.
6 Months
Blow out or vacuum inside. During heavy service, clean monthly.
OR
Remove drive roll and apply light coat of oil or grease to drive motor shaft.
4-2. Circuit Breakers
2
1
Y Turn Off unit.
1 Circuit Breaker CB1
CB1 protects main circuit board PC1 if drive motor shorts or fails. If CB1 opens, wire feeding stops. Check for gun liner blockage or kinks, and check for jammed wire, or binding drive rolls.
2 Circuit Breaker CB2
CB2 protects the trigger circuit from overload. If CB2 opens, weld output stops. Check gun switch, and trigger leads.
Correct problem. Press button to reset circuit breaker. Close door.
Ref. 802 472