RADIAL TYRE REPAIRS
Equipment
required
Hand rasp/stitcher, radial tyre patch
or Uni patch, Vulcanising Cement, spare tube (optional), and a ground
sheet.
(Note - the Uni patch is non-directional
and can be used for both radial and conventional cross-ply internal
wall repairs.)
Radial (internal Wall) Repair Chart
for Passenger Vehicles
|
Injury Length |
Injury Width 6mm
|
Injury Width 10mm
|
Injury Width 15mm
|
|
6mm |
RST-10 Patch |
RST-12 Patch |
RST-12 Patch |
|
12mm |
RST-10 Patch |
RST-12 Patch |
RST-12 Patch |
|
20mm |
RST-12 Patch |
RST-12 Patch |
RST-12 Patch |
|
30mm |
RST-12 Patch |
RST-12 Patch |
RST-14 Patch |
|
40mm |
RST-14 Patch |
RST-14 Patch |
RST-14 Patch |
|
45mm |
RST-14 Patch |
RST-14 Patch |
|
|
50mm |
RST-14 Patch |
RST-14 Patch |
|
|
55mm |
RST-14 Patch |
RST-14 Patch |
|
Procedure to repair the tyre
- Locate the injury and carefully
remove any foreign object.
- Mark out the damaged area (using
chalk) on the inner wall of the tyre.
- Use the hand rasp to roughen up
the damaged area. Roughen up an area slightly larger than the radial
patch.
- Clean the surface of any dust and
debris using a clean cloth.
- Evenly apply the vulcanising cement
over an area slightly larger than the patch and allow to thoroughly
dry.
Fold
the patch in half and the backing will split. Peel the backing off,
taking care not to touch the adhesive side of the patch.
- Using the arrows on the radial tyre
patch, place it across the tyre so that the arrows point across
the tyre from ram bead to bead.
- Firmly work the stitcher across
the patch until it has securely bonded to the inner wall of the
tyre.
- It is recommended that a tube be
fitted for a complete tyre repair.
Any repairs carried out in the field using a radial tyre patch
should be inspected by an authorised tyre repair centre as soon
as possible. (AS 1973-1993)
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