Revision 1.0 - 12/08/2013
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4.2
It is recommended to use wheels that have
been dynamically balanced. The maximum
radial tyre run out should not exceed 2mm.
New wheel & tyre assemblies are supplied
balanced. When carrying out this operation
in service, it is advisable to check the
wheel & tyre assemblies.
4.3
Before the fitment of any wheel, they and
al associated parts should be thoroughly
inspected for distortion, damage, dents,
cracks, corrosion, worn stud holes, stud
security, hub and the condition of the spigot
mounting area.
4.4
Inspect each wheel and hub mating surfaces,
ensuring they are spotlessly clean and free
from any paint additional to the wheel
manufacturer’s protective coating.
Emergency Repairs
Wheels and Tyres
4.5
Never assume someone else has inspected
all the components - it is the responsibility
of the person fitting the wheels to carry
out the inspection.
4.6
In order to minimise any friction of the
wheel stud and nut threads, each should
be cleaned down the entire length of the
thread.
4.7
Friction-reducing thread lubricants
are not permitted.
4.8
Carefully fit the wheels squarely over hub/
studs avoiding damage to stud threads. On
twin wheel fitments, ensure the tyre valves
are correctly aligned.
4.9
Fit and run up the wheel by hand initially.
If using power tools, then only use for the
initial phase of tightening. The last stages
of tightening must be carried out with a
torque wrench.
4.10
The final tightening of the wheel nuts
should be done before fully lowering the
wheel to the ground in order that the correct
clamping force can be achieved.
4.11
Tighten the wheel nuts in the correct sequence
as shown below using a calibrated torque
wrench.
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