Routine Maintenance
Tyres and Wheels
157 157
9811/5700-7
Changing a Wheel
!MWARNING
Deflate the tyre you wish to change before removing
the wheel from the machine. Air pressure in the tyres
can cause the tyre and rim sections to explode
causing serious injury or death. Never loosen the nuts
that hold the inner and outer wheel halves together
when there is air pressure in the tyre. Always wear
safety glasses.
12-6-1-3
!MWARNING
Whenever a wheel has been changed, check the nut
torques every two hours. When the nuts stay tight for
eight hours, the interval for checking can revert to the
period stated in the servicing schedule.
12-6-1-4
Note: If for whatever reason a wheel bolt is renewed, all
the bolts for that wheel must be replaced as a set, since the
remaining bolts may have been damaged.
1 Remove the wheel as follows:
a Park the machine on firm level ground.
b Apply the park brake and select neutral.
c Stop the engine and remove the ignition key.
d Jack up the machine to gain access to whichever
wheel you wish to change.
e Deflate the tyre and remove the valve core to
make sure that all the air is out of the inner tube
(pneumatic tyres only).
Note: Push a wire through the valve stem to make sure the
valve stem does not have a restriction.
f Remove the nuts A then remove the wheel.
Fig 124.
2 Refit the wheel as follows:
a Inspect the wheel for any damage, i.e. elongated
holes.
b Clean the hub, wheel mounting face and nut
cones thoroughly if they are contaminated with
paint, rust or debris.
c Ensure the wheel stud thread surface is
maintained dry and is free from all lubricants.
d Position the wheel on the hub.
e Lightly tighten the nuts A to ensure the wheel is
correctly seated onto the hub.
f Tighten the nuts A diametrically in pairs.
K
Checking the Wheel Nut Torques ( T 158).
g Lower the machine to the ground.
274820-V1
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