OPERATING INSTRUCTIONS
Before You Begin Welding
Good welding requires a high degree of skill and experience. You should practice a few sample welds on scrap metal before you begin welding your first project. Ad- ditional practice periods are recommended whenever you weld a different thickness of material, wire, or weld a different type of connection.
Understanding Duty Cycle (Duration of Use)
1.CAUTION! Avoid damage to the Welder by not leaving the unit on for more than the prescribed duty cycle time.
100% Duration of use | 30% Duration of use |
at 125 Amp Setting | at 250 Amp Setting |
Continuous | 3 minutes in use | |
followed by | ||
| ||
use | at least | |
7 minutes OFF | ||
| in a single 10 minute period |
Other settings fall between these two ranges.
FIGURE H
2.The duty cycle defines the number of minutes, within a 10 minute period, during which a given Welder can safely produce a particular welding current. For example, this Welder, with a 30% duty cycle at 250 Amps must be allowed to rest for at least 7 minutes after every 3 minutes of continuous weld at 250 Amps. (See Figure H.)
3.Failure to carefully observe duty cycle limitations can easily
4.This Welder is equipped with an internal thermal protection system to help prevent over stressing the unit. When the unit overheats, it automatically shuts down, then automatically returns to service when it cools down.
Note: Once the unit returns to service, follow a more conservative duty cycle routine to help prevent excess wear to the Welder. (See Figure H.)
SKU 95424, 95629 | For technical questions, please call | Page 20 | |
Troubleshooting section at end of manual. | |||
|
|
