SECTION 4 – MAINTENANCE & TROUBLESHOOTING

4-1. Routine Maintenance

 

Y

Disconnect power

. Maintain more often

 

during severe conditions.

 

 

before maintaining.

 

 

 

 

 

 

 

 

3 Months

Replace

Repair Or

Replace

Damaged Or

Cracked

Unreadable

Cables And

Labels

Cords

 

Clean And

Tighten

Weld

Terminals

6 Months

Blow Out Or

Vacuum Inside

Remove drive roll and carrier. Apply light coat of oil or grease to drive motor shaft.

4-2. Circuit Breaker CB1

1

2

1 Circuit Breaker CB1

If CB1 opens, wire feeding stops.

2 Welding Gun

Check gun liner for blockage or kinks.

3 Wire Drive Assembly

Check for jammed wire, binding drive gear or misaligned drive rolls.

Allow cooling period and reset breaker. Close door.

3

Ref. ST-800 924-C

OM-157 066 Page 16

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Miller Electric 255 warranty Routine Maintenance, Months, Circuit Breaker CB1, Disconnect power, Before maintaining