.A complete Parts List is available at www.MillerWelds.com
SECTION 6 − MAINTENANCE &TROUBLESHOOTING
6-1. Routine Maintenance
! | Disconnect power | .Maintain more often |
| before maintaining. | during severe conditions. |
n = Check | Z = Change | ~ = Clean | l = Replace | Reference |
* To be done by Factory Authorized Service Agent |
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Every |
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3 |
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Months |
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| l Damaged Or Unreadable | l Repair Or Replace | ~ Clean And Tighten Weld | n Check Gun Cable |
| Labels | Cracked Weld Cable | Terminals |
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Every | OR |
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6 |
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Months |
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| ~ Inside Unit | Clean Drive Rolls |
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Overheating |
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Thermistors RT1 and RT2 protect the unit from damage due to overheating. If output diode heatsink or IGBT heatsink gets too hot, RT1 and/or RT2 opens and output stops. The fan keeps running to cool the unit. Wait several minutes before trying to weld.
