Miller Axcess 300 Manual del usuario - Página 24

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SECTION 5 − MAINTENANCE &TROUBLESHOOTING

5-1. Routine Maintenance

3 Months

Replace unreadable labels

Clean and tighten weld terminals

6 Months

Blow out or vacuum inside.

5-2. Circuit Breaker CB1

5-3. Overheating

Thermostats TP2 and TP3 protect the unit from damage due to overheating. If main transformer T1 or rectifier Z1 gets

too hot, TP2 and/or TP3 opens and output stops. The fan keeps running to cool the unit. Wait several minutes before

trying to weld.

OM-1321 Page 20

Repair or replace

cracked weld cable

Y Disconnect power

before maintaining.

Check gun

cable.

Clean

drive rolls.

Circuit Breaker CB1

If CB1 opens, wire feeding stops.

Welding Gun (Not Included)

Check gun liner for blockage or

kinks.

Wire Drive Assembly

Check for jammed wire, binding

drive gear or misaligned drive rolls.

Allow cooling period and reset

breaker. Close door.

Maintain more often

during severe conditions.

Ref. 802 517-A