Lincoln Electric SVM166-A service manual OPERATIONB-11, Making a Weld

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B-11

OPERATIONB-11

MAKING A WELD

The serviceability of a product or structure utilizing the LN-15 wire feeder is and must be the sole responsibil- ity of the builder/user. Many variables beyond the con- trol of The Lincoln Electric Company affect the results obtained in using the LN-15 wire feeder. These vari- ables include, but are not limited to, welding proce- dure, plate chemistry and temperature, weldment design, fabrication methods and service requirements. The available range of the LN-15 wire feeder may not be suitable for all applications, and the builder/user is and must be solely responsible for welding settings.

•Close the door on the LN-15.

•Connect the work cable to the metal to be welded. The work cable must make good electrical contact to the work. The work must also be grounded as stated in "Arc Welding Safety Precautions".

•Connect the LN-15 electrode cable to the power source for the polarity and process to be used. Check that the appropriate power source settings are made for the procedure to be used. (Refer to the power source operating and connection instructions.)

•Place the LN-15 conveniently near the work area in a safe location to minimize exposure to weld spatter and to avoid sharp bends in the gun cable.

•Connect the LN-15 work clip to the work.

•Be sure the proper contact tip for the wire size being used is in the gun.

•Turn on the welding power source, as well as the shielding gas supply (if used.)

•Cut the electrode within approximately 3/8" (10mm) of the end of the contact tip for solid wire and within 3/4" (19mm) of the extension guide for cored wire.

•Position the electrode over the joint. The end of the electrode should be slightly off the work.

•Lower welding helmet, close the gun trigger and begin welding. Hold the gun so the contact tip to work distance gives the correct electrical stickout as required for the procedure being used.

•To stop welding, release the gun trigger and the pull the gun away from the work.

LN-15