Land Rover Defender Workshop Rover Manual

74WHEELS
ANDTYRES
2 FAULT
DIAGNOSIS
FAULT
-SYMPTOMS
Vibration throughsteering wheel
1. Check tyrepressures
See Repair, Tyre
Pressures
.
2. Check condition oftyres
See Tyre Wear Chart.
3. Check frontwheel alignment
SeeSTEERING,
Adjustment, FrontWheel Alignment
.
4. Check wheelbalance
SeeRepair, Wheel
Balancing
.
NOTE: Inthe event thatanyapparent
vibration isnot eliminated atthis stage
See PROPELLER SHAFTS,Fault
diagnosis, VibrationHarshness
.
NOTE:Inthe event thatanyapparent
vibration isnot eliminated...

WHEELSANDTYRES
1
REPAIR
GENERAL
INFORMATION
WARNING: Thisisamulti-purpose vehicle
with wheels andtyres designed forboth
on and offroad usage. Onlyusewheels
and tyres specified foruse onthe vehicle.
The vehicle isequipped withtubeless S,TorH
rated radial plytyres asstandard equipment. The
tyres areofEuropean metricsizeandmust notbe
confused withthePsize metric tyresavailable in
North America.
Vehicle wheelsets,including sparewheel, mustbe
fitted withthesame makeandtype oftyre tothe
correct specification...

74WHEELS
ANDTYRES
2 REPAIR
When
theindicators appearintwo ormore adjacent
grooves, atthree locations aroundthetyre, anew tyre
must befitted.
NOTE: DONOT attempt tointerchange
tyres, e.g.from front torear, astyre wear
produces characteristic patterns
depending ontheir position. Iftyre position is
changed afterwear hasoccured, theperformance
of the tyre willbeadversely affected.
NOTE:Territorial vehicleregulations
governing tyrewear MUST beadhered to.
WHEELS INSPECTION
Regularly checkthecondition ofthe...

WHEELSANDTYRES
3
REPAIR
WHEEL
BALANCING
CAUTION: Itis essential thatallwheel
balancing iscarried outoffthe vehicle.
The useofon the vehicle balancing could
cause component damageorpersonal injuryand
MUST NOTbeattempted.
NOTE: Before attempting tobalance a
wheel andtyre assembly cleanallmud and
dirt deposits frombothinside andoutside
rims andremove existing balanceweights.
Remove stonesfromthetyre tread inorder toavoid
operator injuryduring dynamic balancing andtoobtain
the correct balance.
Inspect...

74WHEELS
ANDTYRES
4 REPAIR
Static
balance
Wheel tramp
A-Heavy spot.
B -Add balance weightshere.
C -Centre lineofspindle.
Static balance isthe equal distribution ofweight
around thewheel. Astatically unbalanced wheelwill
cause abouncing actioncalledwheeltramp. This
condition willeventually causeuneven tyrewear. Dynamic
balance
Wheel shimmyA-Heavy spot.
B -Add balance weightshere.
C -Centre lineofspindle.
Dynamic balanceisthe equal distribution ofweight on
each sideofthe centre linesothat when thewheel...

WHEELSANDTYRES
5
REPAIR
Off
vehicle balancing
Balance wheelassembly referringtoequipment
manufacturers instructions.
It is essential thatthewheel islocated bythe centre
hole NOT thestud holes. Toensure positive wheel
location thediameter ofthe locating collaronthe
machine shaftmustbe112,80 to112,85 mm(4.441 to
4.443 in).This diameter willensure thatthecollar fits
correctly withinthecentre holeofthe wheel.
Where possible, alwaysusethevehicle wheel
retaining nutstolocate thewheel onthe balancer, to
avoid...

74WHEELS
ANDTYRES
6 REPAIR
REV:09/97
WHEELS Remove
WARNING:
Theparking brakeactson
transmission, notrear wheels, andmay
not hold vehicle whenjacking unless
following procedure isused. Ifone front wheel
and onerear wheel israised novehicle holding or
braking effectispossible. WheelsMUSTbe
chocked inall circumstances.
Apply parking brake,selectagear inmain
gearbox andengage lowgear intransfer box.
1. Loosen 5wheel nuts.
2. Using asuitable trolleyjack,raise vehicle and
place onaxle stands
SeeINTRODUCTION,...

WHEELSANDTYRES
7
REPAIR
REV: 09/97
WHEEL
STUD
Remove 1. Remove wheel
SeeWheels.
2.Drive studoutofdriveshaft flange.
Refit 3. Position studinflange.
4. Install asuitable spaceroverstud.
5. Using aM16 x1.5 nut, aslave wheel nutis
suitable, pullstud intoflange untilshoulder of
stud abuts flange.
6. Refit wheel.   

CHASSISANDBODY
1
DESCRIPTION
ANDOPERATION
CHASSIS
ANDBODY
Chassis The chassis onallDefender variantsareofthe box
section, laddertypeconstruction, manufactured from
2 m m (14swg) steelandtreated withzinc phosphate,
cathodic electrocoated, followed bywaxing inthe rear
crossmember.
Outriggers andangled brackets weldedtothe chassis
support suspension andaxle components andare
also used asbody mounting points.Adetachable box
section crossmember, locatedbetween thetwo
chassis longitudinals isfitted...

76CHASSIS
ANDBODY
2 DESCRIPTION
ANDOPERATION
LAND
ROVER 90