Chicago Electric 94739 operating instructions Preparing to use the welder

NOTE: Welding is a complex operation requiring training, skill and practice. We strongly recommend professional training before attempting any welding operation. This manual is intended only as basic information and cannot cover all aspects of the welding process.

Preparing to use the welder

1.Always clean both sides of the work material at and near the work place to remove paint, rust, dirt, grease and other contaminating material. Contaminants will interfere with the welding process, and may cause noxious gasses to be produced as they are heated during the welding operation.

2.Always connect the Ground Clamp to another cleaned location as close as possible to the work area (no more than 12” away).

NOTE: Always wear and use ANSI-approved personal safety clothing and safety devices to reduce the risk for injury.

Spot Welding Washers using the Magnetic Washer Tip

1.Thoroughly clean the area to be worked on using an angle grinder, powered wire brush or similar tool.

2.Attach the Ground Clamp near the area to be repaired.

3.Turn the Function Selector to the TIMED setting. Set the Timer Control to between 0.1 and 1.2 sec- onds. NOTE: The time must be adjusted for the thickness and relative density of the work material. In general, larger thicker washers will require longer welding time.

4.Insert a flat washer into the Magnetic Washer Tip.

5.Using the gun, press the washer against the dented area. Squeeze the trigger. The washer will be welded to the work material. Release the Trigger.

6.You may use washers of different sizes and thicknesses for different dents. Larger washers will have more pulling power. Be sure to use washers that are NOT galvanized or electroplated, and are free of rust, grease, dirt or other contaminants.

7.If necessary, you can spot weld the washer, then heat the surrounding area before pulling the washer. Heating the surrounding area will anneal, soften the metal making dent removal easier.

WARNING: Galvanized and electroplated metals generally have a zinc based plating to resist rust. When heated, zinc gives off a harmful, potentially poisonous gas. Do not weld with electroplated or galvanized materials.

Schematic of Washer Welding