LAND ROVER DISCOVERY 1995 Service Repair Manual

STEERING
1
SPECIFICATIONS, TORQUE STEERING PUMP
Make/type - V8i ZF 'Unicorn'................................................................
Make/type - Tdi Hobourn Eaton 500 series................................................................
Operating pressure - straight ahead position - at idle 7 bar, 100 lbf/in
2maximum ......
Full lock (left or right) at idle 28 bar, 400 lbf/in2minimum .............................................
Full lock (left or right) 1000 rev/min 70-77 bar, 1000-1100 lbf/in2..................................

57STEERING
2
SPECIFICATIONS, TORQUE TORQUE VALUES
NOTE: Torque wrenches should be regularly checked for accuracy to ensure that all fixings are
tightened to the correct torque.
Nm
Ball joint nuts 40..............................................................................................
Clamp bolt nuts 14..........................................................................................
Steering column bracket nuts 22....................................................................
Steering wheel nut 50.....................................................................................
Tie bar to mounting nut 110.............................................................................
Universal joint pinch bolt 25............................................................................
PAS box
Adjuster locknut 60.................................................................................
Drop arm nut 176....................................................................................
Sector shaft cover to steering box 75.....................................................
Steering box to chassis 81.....................................................................
Steering box fluid pipes 14mm thread 15...............................................
Steering box fluid pipes 16mm thread 20...............................................
Tie bar 81...............................................................................................
PAS pump
High pressure fluid pipe 20.....................................................................
Power steering pump mounting 35.........................................................
Pulley bolts, power steering pump 10....................................................
Hose clamp 3........................................................................................
Front mounting plate bolts 9..................................................................
PAS reservoir
Hose clamp 3........................................................................................
* Torque values below are for all screws and bolts used except for those that are specified otherwise.
METRIC Nm
M5 6......................................................................................................
M6 9......................................................................................................
M8 25.....................................................................................................
M10 45...................................................................................................
M12 90...................................................................................................
M14 105..................................................................................................
M16 180..................................................................................................
UNC / UNF
1/4 9......................................................................................................
5/16 24...................................................................................................
3/8 39.....................................................................................................
7/16 78...................................................................................................
1/2 90.....................................................................................................
5/8 136....................................................................................................

STEERING
1
SERVICE TOOLS POWER STEERING BOX
LRT-57-012 Drop arm extractor
LRT-57-007 'C' Wrench
LRT-57-006 Worm adjusting wrench
LRT-57-019 Ring expander

57STEERING
2
SERVICE TOOLS
LRT-57-020 Ring compressor
LRT-57-021 Seal saver, sector shaft
LRT-57-016 Seal saver, valve and worm
LRT-57-017 Torque setting tool

STEERING
3
SERVICE TOOLS
LRT-57-018 Ball joint remover
LRT-57-005 Pressure gauge
LRT-57-001 Test adaptor
LRT-57-022 Pressure test adaptors

FRONT SUSPENSION
1
DESCRIPTION AND OPERATION INTRODUCTION
Suspension design is a major factor in determining the comfort, safety and performance of any vehicle, but is
particularly significant to 4 wheel drive cross country vehicles. The ideal suspension must allow maximum wheel
travel and axle articulation, and provide good ground clearance without loss of traction or directional stability.
A well designed beam axle layout can embrace all of these qualities and also has the inherent advantage (over
independent systems) of no variation in wheel track or camber angle.
Suspension comparison
1. Beam axle system
2. Independent system

60FRONT SUSPENSION
2
DESCRIPTION AND OPERATION AXLE LOCATION
The front axle is controlled longitudinally, by two forged steel radius arms and transversely by a panhard rod.
Front axle suspension
1. Panhard rod - transverse location
2. Radius arms - longitudinal location
3. Coil springs
4. Shock absorber
Long travel coil springs and hydraulic shock absorbers, provide the springing for each wheel.

FRONT SUSPENSION
1
REPAIR SELF LOCKING NUTS
WARNING: Where self locking nuts are
removed, they must be replaced with new
nuts of same specification.
PANHARD ROD
Service repair no - 60.10.07.
Remove
1.Remove fixings at mounting arm.
2.Remove fixings at axle bracket.
3.Remove Panhard rod.
4.Press out flexible bushes. Ensure the steel
tubing locates on the outer edge of the bush and
not on the rubber inner.
Refit
5.Fit replacement bushes.
CAUTION: Apply pressure to outer edge of
bush, and not rubber inner.
6.Reverse removal procedure. 1 to 4. Tighten to
88Nm
RADIUS ARM
Service repair no - 60.10.16.
Remove
1.Loosen road wheel retaining nuts.
2.Raise front of vehicle. Support chassis on stands
and remove wheel.
3.Support front axle weight with jack.
4.Remove radius arm to chassis side member
fixings.
5.Disconnect track rod at ball joint.
6.Remove fixings, radius arm to axle.
7.Lower radius arm front end to clear axle and
remove from vehicle.

60FRONT SUSPENSION
2
REPAIR
8.Press out flexible bushes.
Refit
9.Press in replacement bushes.
CAUTION: When pressing in new bushes
press on outer edge of bush and not
rubber inner.
10.Reverse removal procedure. 1 to 8.
Tighten fixings to following torques:
Radius arm to chassiss
176Nm
Radius arm to axle197Nm
FRONT SHOCK ABSORBER
Service repair no - 60.30.02.
Remove
1.Loosen road wheel retaining nuts.
2.Support chassis on stands and remove road
wheel.
3.Support axle weight with jack.
4.Remove shock absorber lower fixing and
withdraw cupwasher, rubber bush and seating
washer.
5.Remove four shock absorber bracket fixings.
6.Withdraw shock absorber and bracket complete.

FRONT SUSPENSION
3
REPAIR 7.Withdraw lower seating washer, rubber bush and
cupwasher.
8.Remove fixings, shock absorber to mounting
bracket.
9.Withdraw mounting bracket.
10.Lift off top seating washer, rubber bush and
cupwasher.
Refit
11.Reverse removal procedure. 1 to 10.FRONT ROAD SPRING
Service repair no - 60.20.11.
Remove
1.Remove front shock absorber.
See Front
Shock Absorber
CAUTION: Avoid over stretching brake
hoses. If necessary loosen hose connector
locknuts to allow hoses to follow axle.
2.Lower axle sufficient to free road spring.
3.Withdraw road spring.
4.Withdraw shock absorber bracket securing ring.
Refit
5.Fit shock absorber bracket retaining ring. Retain
in position with a nut.
6.Reverse 2 and 3.
7.Remove nut retaining securing ring.
8.Fit front shock absorber.