steering wheel adjustment LAND ROVER DEFENDER 1996 User Guide

57STEERING
4
REPAIR POWER STEERING BOX
Service repair no - 57.10.01
NOTE: A chassis undertray may be fitted
on some vehicle derivatives to conform to
legal requirements. When under chassis
remove and refit procedures are required, it may
be necessary to remove the undertray
See
CHASSIS AND BODY, Repair, Front undertray
.
General precautions
·Whenever any part of system, is removed or
disconnected, utmost cleanliness must be
observed.
·Disconnected ports and hoses must be
plugged to prevent ingress of dirt. If metal
sediment is found in system, establish cause,
rectify and flush system.
·Do not start engine until reservoir is full as
pump will be damaged.
·Metric pipe fittings are used with 'O' ring pipe
ends on fittings to steering box.
·Follow normal 'O' ring replacement procedure
whenever pipes are disconnected.
·Ensure compatible metric components when
fitting replacement pipes.
CAUTION: After refitting steering linkage
parts follow correct procedure to ensure
that road wheels, steering box and
steering wheel are correctly positioned relative to
each other when in straight ahead condition.
NOTE: When drag link is disconnected
from steering box, travel available at
steering wheel to each full lock is not
equal.
Remove
1.Site vehicle on level surface.
2.Apply park brake, chock rear wheels, raise
vehicle and locate axle stands. Alternatively,
raise vehicle on a hoist.
3.Remove road wheel.
4.Remove panhard rod
See FRONT
SUSPENSION, Repair, Panhard rod
.
5.Disconnect steering damper from drag link.
6.Disconnect drag link from drop arm, see J6305
on opposite page, using a suitable extractor.
7.Slacken, but do not remove nut securing tie bar
to mounting arm.8.Remove 2 bolts securing tie bar to steering box
and move aside.
9.Remove filler cap from power steering fluid
reservoir.
10.Position suitable container under steering box.
11.Disconnect feed and return pipes from steering
box and drain fluid.
12.Plug open pipes and steering box ports to
prevent ingress of dirt. Refit fluid reservoir filler
cap.
13.Centralise steering
See Centralise steering
box
.
14.Remove pinch bolt securing lower shaft
universal joint to power steering box.
15.Remove 4 bolts and 2 tab washers securing
steering box to chassis side member.
16.Withdraw steering box.
17.Clean all mounting faces, unions etc. prior to
refitting.
Refit
18.Position steering box to chassis side member,
ensuring locating peg is engaged. Fit tab
washers and tighten bolts to
81 Nm (60 lbf/ft).
19.Fit pinch bolt and nut securing universal joint to
power steering box spline. Tighten to
25 Nm (18
lbf/ft).
20.Secure tie bar to mounting arm and steering box.
Tighten fixings to
81 Nm (60 lbf/ft),starting with
tie bar to mounting nut, then loosen fixings by
one complete turn.
21.Check steering box and adjust if necessary
See
Adjustment, Power steering box - adjust
.
22.Refit drag link to drop arm and tighten nut to
40
Nm (30 lbf/ft).
Fit new split pin to retaining nut.

STEERING
13
REPAIR REV: 05/99 TRACK ROD AND LINKAGE
Service repair no - 57.55.09
Remove
1.Park vehicle on level ground and chock rear
wheels.
2.Raise vehicle and locate axle stands or use a
ramp.
3.Centralise steering
See Adjustment,
Centralise steering box
.
4.Unscrew 2 bolts and remove track rod protection
bracket from axle differential housing.
5.Remove split pin and castellated nut securing
track rod to swivel housing arms.
6.Disconnect track rod ball joints using
LRT-57-018.
7.Remove track rod.
8.Slacken clamp bolts.
9.Unscrew ball joints.

57STEERING
14
REPAIRREV: 05/99 Refit
10.Fit new ball joints to track rod and loosely tighten
clamp bolts.
11.Screw in ball joints to full extent of threads and
fully tighten clamp bolts.
CAUTION: A track rod that is damaged or
bent must be renewed. DO NOT attempt to
repair or straighten it.
12.Fit track rod to swivel housing arms and tighten
ball joint nuts to
40 Nm (30 lbf/ft).Fit new split
pin.
13.Fit track rod protection bracket to axle differential
housing.
14.Check wheel alignment
See Adjustment,
Front wheel alignment
.
15.Remove axle stands or vehicle from ramp.

57STEERING
16
REPAIR 15.Centralise steering box
See Adjustment,
Centralise steering box
.
16.Align steering wheel, if necessary.
CAUTION: A drag link that is damaged or
bent must be renewed. DO NOT attempt
repair.
17.Fit drag link to swivel housing arms and tighten
nuts to
40 Nm (30 lbf/ft).Fit new split pins.
18.Ensure full steering travel is obtained between
lock stops
See Adjustment, Steering lock
stops
. Adjust drag link length to suit.
19.Tap ball joints in direction shown so both pins
are in same angular plane.
20.Tighten clamp bolts to
14 Nm (10 lbf/ft).
21.Refit road wheel and remove axle stands or
vehicle from ramp.
22.Road test vehicle.
23.If driving straight ahead and steering wheel is
offset by 0°±5°in either direction, correct by
adjusting drag link length.
WARNING: To correct steering wheel
deviations greater than±5°remove and
reposition steering wheel
See Steering
wheel
.

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 Wheel out of balance Balance wheel and tyre
cupping assembly
Excessive radial runout Check runout and replace tyre
if necessary
Shock absorber worn Replace shock absorber
Excessive braking
Tyre scalloped Track out of adjustment Adjust toe to correct figure
Worn suspension components Replace tyre as necessary
Excessive cornering speeds
CAUTION: This diagnosis chart is for general guidance only and does not necessarily include
every cause of abnormal tyre wear.

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 alignment
See 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: In the event that any apparent
vibration is not eliminated at this stage, go
to steering Fault Diagnosis, Fault -
Symptom (Steering vibration, road wheel
shimmy/wobble)
See STEERING, Fault diagnosis,
Steering Faults
.
NOTE: Radial ply tyres have a flexible
sidewall, which produces a sidewall bulge
making the tyre appear under-inflated.
This is a normal condition for radial ply tyres. Do
not attempt to reduce this bulge by over-inflating
the tyre.
Key to illustration
1.Correct inflation.
2.Under-inflation.
3.Over-inflation.
4.Tread contact with road.