Tyres - Change - Case WX145 Operator's Manual

SECTION 4

TYRES - CHANGE

Park the machine on a level and firm surface.
Engage the parking brake.
Loosen the wheel nuts (1) of the wheel (2) by
approximately 1 full turn.
Raise the axle with the defective wheel slightly, until
the wheels come clear of the ground. For this opera-
tion the machine can be lifted at the concerned side
either with the working equipment or with the stabi-
lizers.
Place wooden chocks under the lifted axle, to avoid
that it lowers.
Place the machine in a safe condition.
Relieve the pressure from the tyres.
Unscrew nuts (1) from the concerned wheel (2) and
the middle ring (optional).
Mark the inner wheel and the outer one. Do not lose
the centering rings, the spring washers and the
wheel nuts. They have to be reused for reassembly.
Fit the new tyres and inflate both of them at about
1 bar (14.5 psi).
Observe the assembly sequence:
- inner wheel (rims with greater camber angle);
- intermediate ring (optional);
- outer wheel (rims with minor camber angle).
Observe the sequence absolutely, because in
case of wrong assembly of the wheels, the maxi-
mum allowable with of the machine can be
exceeded;
- pay attention to the tread position;
- do not damage the threads of the wheel studs;
- centre the intermediate ring;
- no foreign body must be stuck between the tyres
and the intermediate ring.
Tighten the nuts (1) of the wheel (2) by hand.
Remove the wooden chocks under the raised axle
and lower it.
Tighten the nuts (1) of the wheel (2) to the pre-
scribed torque.
Inflate the tyres to the correct pressure.
Check, after some service hours, the tightening of
the wheel nuts by means of a torque wrench.
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