22 Wheels and Tires
View of the jack correctly installed to the front jacking point
.
(10) Continue to raise the jack until the tire
clears the ground sufficiently to allow the spare wheel
to be installed.
(11) Remove the wheel nuts and lift the wheel
off the hub.
NOTE: Under no circumstances get under
the vehicle while the jack is the only means
of support.
(12) Install the spare wh eel and install the wheel
nuts with the chamfered e nds contacting the wheels.
Tighten the wheel nuts as much as possible by hand.
(13) Lower the jack and securely tighten the
wheel nuts progressively in a diagonal sequence using
the wheel spanner. (14) Where removed, install the wheel cover.
(15) Return the spare wheel, jack and tool kit to
their relevant storage positions.
ABNORMAL WEAR ON CENTRE OF TREAD
(1) Over inflation of tires: Check and reduce to
the recommended pressure.
ABNORMAL WEAR ON INSIDE OF TREAD
(1) Excessive negative camber angle: Check the
wheel alignment. (2) Sagging coil springs: Check and renew the
coil springs as a pair. (3) Loose or worn hub bearing assembly: Check
and renew the hub bearing assembly. (4) Bent, loose or worn suspension components:
Check and renew any faulty components.
ABNORMAL WEAR ON OUTSIDE OF TREAD
(1) Excessive positive camber: Check the front
wheel alignment.
(2) Excessive speed when cornering: Revise driv-
ing habits. (3) Bent, loose or worn suspension components:
Check and renew any faulty components.
2. TYRE WEAR TROUBLE SHOOTING
ABNORMAL WEAR ON BOTH SIDES OF
TREAD
(1) Under inflation of tires: Check and inflate to
the recommended pressure.
(2) Overloading: Reduce the maximum loading. FLAT SPOTS ON TREAD OR IRREGULAR
WEAR
(1)
Static or dynamic unbalance of the wheel
and tire assembly: Check the balance of the wheel and
tire assembly. (2) Lateral run out of the wheel: Check and (rue
up or renew the wheel.
Tighten the wheel nuts in a diagonal sequence using
the wheel spanner.
