35A-12
WHEELS AND TYRES
Tyre: Repair
35A
Tyre inflation kit
using the tyre inflation kit, supplied with vehicles or
available from retailers, will leave a film on the inner
surface of the tyre.
Before carrying out the repair, clean the inner surface
of the tyre and the valve with water.
If the tyre cannot be cleaned in this way, contact the
tyre supplier for details of cleaning products which can
be used.
REPAIR
I - REPAIR PREPARATION OPERATION
a Position the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
a Remove the wheel (see 35A, Wheels and tyres,
Wheel: Removal - Refitting, page 35A-1) .
a Inflate the tyre.
a Locate the perforation on the exterior of the tyre and
mark it with chalk.
a Remove the tyre.
a Locate the perforation on the interior of the tyre and
mark it with chalk.
a Remove the foreign body which caused the punc-
ture.
a Determine the direction of the perforation channel.
a Determine the size of the hole:
-measure the size of the foreign body,
-measure the extent of the damage to the tyre.
a Choose the size of plug (mushroom type plug) de-
pending on the size of the hole.
II - REPAIR OPERATION
a Use a drill fitted with a suitable bit, perpendicular to
the surface of the tyre, to bore the interior then the
exterior of the perforation channel.
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