Land Rover Defender 90 Workshop 2nd Edition Nas Rover Manual

WHEELS AND TYRES
1
FAULT DIAGNOSIS TYRE WEAR CHART
FAULT CAUSE REMEDY
Rapid wear at Tyres under-inflated Inflate to correct pressure
shoulders Worn suspension components Replace worn components
i.e. ball joints, panhard
rod bushes,steering damper
Excessive cornering speeds
Rapid wear at
centreTyres over-inflated Inflate to correct pressure
of tread
Wear at one
shoulderTrack out of adjustment Adjust track to correct figure
Bent panhard rod Check and replace worn or damaged
components
Bald spots or tyre...

74WHEELS AND TYRES
2
FAULT DIAGNOSIS FAULT - SYMPTOMS
Vibration through steering wheel
1.Check tyre pressures.
See Repair, Tyre
Pressures
2.Check condition of tyres.See Tyre Wear Chart
3.Check front wheel alignmentSee STEERING,
Adjustment, Front Wheel Alignment
4.Check wheel balance.See Repair, Wheel
Balancing
NOTE: In the event that any apparent
vibration is not eliminated at this stage.
See PROPELLER SHAFTS, Fault
diagnosis, Vibration Harshness
NOTE: Radial ply tyres have a flexible
sidewall, which...

WHEELS AND TYRES
1
REPAIR GENERAL INFORMATION
WARNING: This is a multi- purpose vehicle
with wheels and tyres designed for both
on and off road usage. Only use wheels
and tyres specified for use on the vehicle.
The vehicle is equipped with tubeless radial ply tyres
as standard equipment. The tyres are of European
metric size and must not be confused with the P size
metric tyres available in North America.
Vehicle wheel sets, including spare wheel, must be
fitted with the same make and type of tyre to...

74WHEELS AND TYRES
2
REPAIR When the indicators appear in 2 or more adjacent
grooves, at 3 locations around the tyre, a new tyre
must be fitted.
NOTE: DO NOT attempt to interchange
tyres, e.g. from front to rear, as tyre wear
produces characteristic patterns
depending on their position. If tyre position is
changed after wear has occured, the performance
of the tyre will be adversely affected.
NOTE: Territorial vehicle regulations
governing tyre wear MUST be adhered to.
WHEELS INSPECTION
Regularly check...

WHEELS AND TYRES
3
REPAIR WHEEL BALANCING
CAUTION: It is essential that all wheel
balancing is carried out off the vehicle.
The use of on the vehicle balancing could
cause component damage or personal injury and
MUST NOT be attempted.
NOTE: Before attempting to balance a
wheel and tyre assembly clean all mud and
dirt deposits from both inside and outside
rims and remove existing balance weights.
Remove stones from the tyre tread in order to avoid
operator injury during dynamic balancing and to obtain
the...

74WHEELS AND TYRES
4
REPAIR Static balance
Wheel tramp
A.Heavy spot.
B.Add balance weights here.
C.Centre line of spindle.
Static balance is the equal distribution of weight
around the wheel. A statically unbalanced wheel will
cause a bouncing action called wheel tramp. This
condition will eventually cause uneven tyre wear.Dynamic balance
Wheel shimmyA.Heavy spot.
B.Add balance weights here.
C.Centre line of spindle.
Dynamic balance is the equal distribution of weight on
each side of the centre line so...

WHEELS AND TYRES
5
REPAIR Off vehicle balancing
Balance wheel assembly referring to equipment
manufacturers instructions.
It is essential that the wheel is located by the centre
holeNOTthe stud holes. To ensure positive wheel
location the diameter of the locating collar on the
machine shaft must be 112.80 to 112.85 mm, 4.441 to
4.443 in. This diameter will ensure that the collar fits
correctly within the centre hole of the wheel.
Where possible always use the vehicle wheel
retaining nuts to locate the...

74WHEELS AND TYRES
6
REPAIR WHEELS
Remove
WARNING: The parking brake acts on the
transmission, not rear wheels, and may
not hold vehicle when jacking unless the
following procedure is used. If one front wheel
and one rear wheel is raised, no vehicle holding or
braking effect is possible. Wheels MUST be
chocked in all circumstances.
Apply parking brake, select P in main gearbox
and engage low gear in transfer box.
1.Loosen 5 wheel nuts.
2.Using a suitable trolley jack, raise vehicle and
place on axle...

CHASSIS AND BODY
1
DESCRIPTION AND OPERATION CHASSIS AND BODY
Chassis
The chassis on all Defender variants are of the box
section, ladder type construction, manufactured from
2 mm (14swg) steel and treated with zinc phosphate,
cathodic electro coated, followed by waxing in the rear
crossmember.
Outriggers and angled brackets welded to the chassis
support suspension and axle components and are
also used as body mounting points. A detachable box
section crossmember, located between the two
chassis...

76CHASSIS AND BODY
2
DESCRIPTION AND OPERATION