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tubes be replaced.
Inner
tubes
should
be
patched
only
in emergency
situations
when
replacement
tubes are not
available.
If
replacing
an inner
tube,
be
certain
to
select the
correct
size for the
tire casing.
If repairing a punctured inner
tube, be
certain to locate and eliminate
the cause
of
damage.
WARNING:
Patching may adversely affect wheel bal-
ance. Also, a poorly bonded patch may
cause subsequent tire deflation.
Tire
removal
and installation:
a. Remove
the
wheel
assembly
as
described in Front or Rear Wheel
Removal, pages 66- 68.
b. Remove brake plate assembly
and/or
axle, -so wheel can be layed flat. Lay
wheel assembly on a rag or
cardboard
to prevent hub damage
.
58
c. Remove valve core and valve stem
retaining nuts. Locate and remove any
sharp objects imbedded in the tire.
d. Step on tire casing to break it free
from the rim. Repeat on the opposite
side.
e. Using two small or medium size irons,
placed 4-6
in.
(100-lSO
mm) apart
and inserted between the rim edge and
·
t ire bead at the valve stem location,
pry in and downward with both tire
irons while depressing the tire bead
opposite the tire irons, with your foot.
When tire bead is above the rim edge,
remove only one tire iron and move it
3-4in. (76-100 mm) further away
from the tire iron supporting the tire
bead and insert and pry the tire bead
further off of the rim. Proceed in this
manner until the entire side of the tire
casing is above and clear of the
.rim
edge.
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