Hudson 480-490 Series Service Manual page 59

Bumping is started from the edges toward the center of a
buckled area.
Use the undamaged area of a panel as a pattern for
reshaping the damaged metal. The damaged metal, hav-
ing been reshaped, becomes the pattern for reshaping the
damaged metal beyond it.
A repairman must frequently check his progress by sight-
ing over the last area Winced to the undamaged or re-
paired section beyond. The importance of this frequent
check in the various stages of progress is readily apparent
in that it assures the body mechanic that he is returning
the damaged area back to its exact original contour.
Wear a cotton glove on the hand when checking for high
and low spots. The glove renders the hand more sensitive
because the friction from the moisture on a bare hand
reduces sensitivity considerably.
CAUTION: As the reshaped areas are brought closer
together, it is necessary to carefully watch the con-
tours that are being formed because THEY MUST
MEET SQUARELY.
METAL FINISHING
Metal finishing consists of a variety of operations; all of
which are used to smooth the surfaces of damaged panels,
as follows:
Dinging Heat shrinking
Pulling out dents Welding
Solder filling Filing
Cold shrinking Sanding
DINGING:
Dinging is a method used to pick out small dents in areas
where the underside of the panel is not obstructed by
reinforcements. It proceeds from the borders or edges to
the center of the damaged area, again using the undam-
aged areas as a pattern for reshaping the edges of the
damage. After the edges are reshaped, they
BODY MANUAL
FIGURE 72
become the pattern for correcting the central damage.
FIGURE 73
Dinging is done with the pointed end of a file or with a
pick hammer. The pick hammer is better adapted to reach-
ing behind inside reinforcements. A
file will show up the high spots when drawn lightly over
the surface of the panel. The pick end of the file can then
be used to pick out the low spots.
FIGURE 74
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