Instructions of Spot Welding:

1). Slide the sheet metal gauge onto one edge of the sheet metal to determine the thickness of the metal. When the sheet metal fits snug in a sheet metal gauge slot, read the number above the slot. This will show the thickness of the metal.

2). Set the hold, weld, squeeze and off-time of the spot welder by locating the thickness of the sheet metal on the welding chart affixed to the spot welder.

3). Clean the tips of both the top and bottom electrode by sliding the file over each tip. To weld correctly, the tip of each electrode should have no black carbon deposits.

4). Put on your leather work gloves.

5). Turn on the spot welder and open the cold water supply valve to flow water through the electrodes.

6). Stack the two pieces of sheet metal on top of one another.

7). Set the stacked pieces of sheet metal on the bottom electrode of the spot welder.

8). Depress the pedal of the spot welder to lower the top jaw of the spot welder and weld the sheet metal.

9). Twist the welded sheet metal a quarter-turn before releasing the pedal to avoid pulling a welding electrode from its socket.

10). Attempt to pull the sheet metal apart. If the metal bends rather than pulls apart, the spot welder is set correctly. If the spot weld breaks, increase the weld time of the spot welder and repeat the listed steps until you achieve a proper spot weld.