1995 LAND ROVER DISCOVERY wheel

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 correct balance.
Inspect tyres for damage and correct tyre pressures
and balance according to the equipment
manufacturer's instructions.
Alloy wheels
Clean area of wheel rim and attach adhesive balance
weights in position shown. Cut through rear face of
weight strip to detach required weights.
CAUTION: Use only correct adhesive
balance weights to avoid damage to
aluminium wheel rim. DO NOT attempt to
use a steel wheel weight on an aluminium wheel.
Steel wheels
Clean area of wheel rim and attach balance weights in
position shown.

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 that when the wheel
spins there is no tendency for side to side movement.
A dynamically unbalanced wheel will cause wheel
shimmy.

WHEELS AND TYRES
5
REPAIR Off vehicle balancing
Balance wheel assembly referring to equipment
manufacturer's 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 wheel on the balancer, to
avoid damaging the wheel. If this is not possible, the
locating nuts must be of a similar pattern to the
original wheel nuts. The use of conical type wheel
nuts for this purpose may damage the aluminium
alloy.
Cleaning
Wash the aluminium wheels using a suitable wash
and wax concentrate correctly diluted and rinse with
cold clear water.DO NOTuse abrasives or aluminium
wheel cleaners containing acid, as they will destroy
the lacquer finish.
Tyre changing
Use only tyre changing equipment to mount or
demount tyres, following the equipment
manufacturer's instructions.DO NOTuse hand tools
or tyre levers, as they may damage tyre beads or the
aluminium wheel rim.
Puncture repair
Remove punctured tyre from wheel and repair using a
combination service plug and vulcanising patch.
Always follow manufacturer's instructions when using
a puncture repair kit.
Only punctures in tread area are repairable,DO NOT
attempt to repair punctures in tyre shoulders or
sidewalls.
Do not attempt to repair a tyre that has sustained the
following: bulges or blisters, ply separation, broken or
cracked beads, wear indicators visible and punctures
larger than 6 mm diameter.
CAUTION: Do not use tyre sealants that
are injected through valve stem to repair
punctured tyres, they may produce wheel
corrosion and tyre imbalance.
Aluminium wheel rim bead seats should be cleaned
using a non-abrasive cleaner to remove the mounting
lubricants and old rubber. Before mounting or
demounting a tyre, bead area should be well
lubricated with a suitable tyre lubricant.
TYRE FITTING
Alloy wheels
1.Install a new valve assembly.
2.Ensure wheel and tyre is adequately lubricated.
3.Mount tyre in normal manner. Inflate tyre and at
same time apply hand pressure to area around
valve to aid seating over valve first.
NOTE: Stop inflation immediately if tyre
seats opposite valve, as this will result in
valve being blocked by tyre beading,
making further inflation impossible, and carry out
following procedure.
4.Deflate tyre, unseat and rotate it around the rim
until valve is in line with that part of tyre which
seated initially. This part of beading having
seated over hump previously will automatically
seat first when tyre is re-inflated.
5.Inflate tyre to seat beads correctly, finally inflate
to correct pressure.

74WHEELS AND TYRES
6
REPAIR WHEELS
Remove
WARNING: The parking brake acts on
transmission, not rear wheels, and may
not hold vehicle when jacking unless
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' or a gear in main
gearbox and engage low gear in transfer box.
1.Loosen five wheel nuts.
2.Using a suitable trolley jack raise vehicle and
place on axle stands.
See INTRODUCTION,
Information, Jacking
3.Remove wheel nuts and carefully withdraw
wheel over studs.Refit
4.Ensure that retaining studs and nuts are clean.
5.Alloy wheels: Lightly coat wheel mounting spigot
face with a suitable anti-seize compound to
minimise possibility of adhesion between wheel
and spigot face.
6.Refit wheel taking care not to damage stud
threads. (Do not apply oil)
7.Fit wheel nuts and turn by hand for at least three
full threads before using any form of wheel
wrench.
8.Tighten nuts as much as possible using a
suitable wrench.
9.Lower vehicle and finally tighten nuts to correct
torque sequence shown. Alloy wheels and steel
wheels:
130Nm.

WHEELS AND TYRES
7
REPAIR WHEEL STUD
Remove
1.Remove wheel.
See Wheels
2.Drive stud out of driveshaft flange.
Refit
3.Position stud in flange.
4.Install a suitable spacer over stud.
5.Using a M16 x 1.5P nut, a slave wheel nut is
suitable, pull stud into flange until shoulder of
stud abuts flange.
6.Refit wheel.

75SUPPLEMENTARY RESTRAINT SYSTEM
2
FAULT DIAGNOSIS WARNING LABELS
1.Bonnet locking platform
Refer to the Owner's Handbook for information on the
airbag system.
2.Rotary coupler
CAUTION: Ensure wheels are straight
ahead before removal and installation.
3.Driver's sun visor
Refer to the Owner's Handbook for information on the
airbag system.

SUPPLEMENTARY RESTRAINT SYSTEM
3
FAULT DIAGNOSIS
4.Airbag modules
A- If defective, replace and dispose of the entire unit
as directed in the instructions. Under no
circumstances should a diagnosis be performed using
electrically powered test equipment or probing
devices.
B- Tampering or mishandling can result in personal
injury. For special handling instruction refer to the
Workshop manual. This airbag module cannot be
repaired. Use diagnostic instructions to determine if
the unit is defective.
C- ROVER Bar code - The code number must be
recorded if the airbag module is to be replaced.
5.Steering wheel
Refer to the Owner's Handbook for information
on the airbag system.

SUPPLEMENTARY RESTRAINT SYSTEM
1
REPAIR SYSTEM PRECAUTIONS
CAUTION: Before and during any removal
operations within the SRS section, note
routing and position of all harnesses to aid
correct refitting and to avoid accidentally trapping
cables.
CAUTION: During refitting of any item
within the SRS section, always ensure
connectors are fully engaged and latched
before proceeding to the next stage of the
operation.DRIVER'S AIRBAG MODULE
Service repair no - 76.74.01
WARNING: All the airbag system
components, including the wiring harness,
MUST be renewed after the airbags have
deployed.
Remove
1.Turn steering wheel 90Ê from horizontal.
2.Switch off ignition.
3.Disconnect battery negative '-' and then the
positive '+' lead.
CAUTION: Always disconnect both leads.
4.Release 2 turnbuckles and remove dash lower
panel.