Chicago Electric 94739 Assembly and Operations Instructions download pdf (Page 12)

SKU 94739 For technical questions, please call 1-800-444-3353 Page 12

Using the Extractor Hook

1. Thread the Extractor Hook (Pot Hook) onto the slide puller assembly. Fit the extractor hook onto the

washer.

2. Hold the Hand grip with one hand, and pull the Striker back sharply against the handle. This action

will pull out the dent. Repeat as necessary. You may need to weld on additional washers at various

spots to pull out the dent completely.

3. To remove the washers, grip the washer with a pliers (not included), and bend back and forth until

the washer breaks off.

4. Using a grinder (not included), remove the weld spot from each repair location before ﬁnishing the dent

repair.

About Spot Welding

Spot welding is used to join two items of metal together. A high energy electrical force is applied at

a small location for a short time. This electrical force causes the two items of metal to melt and fuse

together at that spot.

If the electrical force is not large enough, if the duration is too short, or the metal is too thick or is

dirty, the weld may not properly fuse.

If the electrical force is too high, if the duration is too long, or the metal is too thin, the metal may

burn through; “blowing out” and causing a hole in the work material.

In auto body repair work, washers or pins may be welded to a spot on the vehicle body to allow a

dent to be pulled out. The washer or pin is then removed, and the spot ground smooth for ﬁnishing. In

cases where there is a hole or severely damaged body panel, a new sheet may be spot welded over

the damaged area to provide a new surface for ﬁnishing.

Proper welding is a skill that takes some time and practice to acquire. Experienced welders will usu-

ally make one or more practice welds on scrap material, to adjust these variables, before making

welds on the work material.

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Chicago Electric 94739 Assembly and Operations Instructions Page 12