OPERATION | |||
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9.To stop welding, release the gun trigger and then pull the gun away from the work after the arc goes out.
10.When no more welding is to be done, close valve on gas cylinder (if used), momentarily operate gun trigger to release gas pressure, and turn off the
Cleaning Tip And Nozzle
Clean the contact tip and nozzle to avoid arc bridging between the nozzle and contact tip which can result in a shorted nozzle, poor welds and an overheated gun. Hint:
PROCESS GUIDELINES
The
The recommended gases and electrodes for GMAW are welding grade CO2 gas or an
The recommended electrode for the
WARNING
Use of the GMAW process with the
The
CAUTION
It is important when changing between welding with steel wire and aluminum to exchange feeding components due to the lubricant applied to steel wire. Failure to do so may result in contaminated welds when welding aluminum.
TABLE B.1 —
| Welding | Shielding |
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Process | Wire | Gas | 16 ga | 14 ga | 12 ga | 10 ga |
MIG DC+ | .035 Dia | 100% Argon | ||||
| 4043 Aluminum |
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| Wire |
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MIG DC+ | .035 Dia | 100% Argon | ||||
| 5356 Aluminum |
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| Wire |
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MIG DC+ | .030 Dia | 98% Argon/ | ||||
| 308L Stainless | 2% Oxygen |
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| Steel Wire |
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CHANGING MACHINE OVER TO FEED OTHER WIRE SIZES
The
WELDING WITH FCAW (Innershield)
Welding with Innershield requires an Innershield Welding Kit. A gasless nozzle is provided in the Innershield Welding Kit. When using Innershield elec- trode, installing the gasless nozzle will improve visibili- ty of the arc and protect the gas diffuser from weld spatter. Additionally included is a gun cable liner to permit proper feeding of .035” (0,9 mm) Innershield wire. Refer to the ACCESSORIES section for details on obtaining this kit.