SECTION 5 − MAINTENANCE AND TROUBLESHOOTING

5-1. 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.

5-2. Supplementary Protectors

2

1

YTurn Off unit.

1 Supplementary Protector 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 Supplementary Protector 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 supplementary protector. Close door.

Ref. 802 601-A

OM-927 Page 24

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Hobart Welding Products 210 Routine Maintenance, Supplementary Protectors, Months, Disconnect power before maintaining