7-11. Overload Protection
| Y Turn Off | wire | feeder and | ||
|
| welding power source. Stop | |||
|
| engine | on | welding | |
|
| generator. |
|
| |
| If fuse opens, unit shuts down. To | ||||
3 | replace fuse, proceed as follows: | ||||
1 | Fuse Holder Cover | ||||
| |||||
| 2 Fuse F1 (See Parts List) | ||||
| 3 | Circuit Breaker CB1 | |||
1 | If CB1 opens, the gun drive motor, | ||||
| gas valve, and contactor will not | ||||
| operate when trigger is pulled. The | ||||
| gun drive motor operates in the Jog | ||||
| mode with CB1 open. |
| |||
2 | Check for blocked gun liner. | ||||
| Check for jammed wire, binding | ||||
| drive gear or misaligned drive rolls | ||||
| in feeder. Correct problem. | ||||
| Allow cooling period and manually | ||||
| reset breaker. Close and latch door. |
Ref. 801 577 / Ref. 800
7-12. Water Flow Switch (Optional For Water-Cooled Models)
The water flow switch protects the gun from overheating. If coolant flow rate drops below 1 qt/min, the water flow switch opens and stops the welding wire from feeding. See Section