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protruding portion of
the rubber strip. Cut off
excess length flush with
tire surface.
Applying the Patch
With the application of
either of the preferred type
patches described below, it is
necessary to first use a fine
wire brush to thoroughly
Fig. 76
roughen an area about the injury slightly larger than the patch
to be applied.
CAUTION:
If
wire
brush
is
mounted in power tool, care must
be exercised not to cut through
inner liner.
1. The Self Vulcanizing Cold Patch.
(a) Apply self-vulcanizing cement
over buffed area and allow to
dry for a minimum of five min-
utes.
NOTE: This time factor is im-
portant.
(b) Remove foil backing from patch
base and place patch over in-
Fig. 77
jury. Stitch down firmly, espe-
cially at edges, to permit
good adhesion and easy
removal of paper cover
from patch (fig. 77) .
•
<
NOTE: The tire may be put
into service immediately.
2. The Hot Patch.
(a) Remove backing from
patch and carefully cen-
ter patch over injury.
Place clamp over patch
and tighten only finger tight (fig. 78).
Fig. 78
(b) Ignite patch and allow to cool for at least 15 minutes or
until cool to touch. Carefully remove metal pan and ashes
remaining in tire.
NOTE: The tire may be put into service immediately .
• 69 •
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