Workshop Manuals Factory service & repair Land Rover
01 Discovery Series II - Workshop Manual - 1999MY ON - 6th Edition - NAS02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 INTRODUCTION32 33 GENERAL INFORMATION34 35 GENERAL DATA36 IDENTIFICATION NUMBERS37 38 TORQUE WRENCH SETTINGS39 40 LIFTING AND TOWING41 CAPACITIES, FLUIDS, LUBRICANTS AND SEALANTS42 43 44 MAINTENANCE45 46 ENGINE - V847 48 EMISSION CONTROL - V849 50 ENGINE MANAGEMENT SYSTEM - V851 FUEL DELIVERY SYSTEM - V852 53 COOLING SYSTEM - V854 55 MANIFOLDS AND EXHAUST SYSTEMS - V856 57 58 59 CLUTCH - V860 61 MANUAL GEARBOX - R38062 63 TRANSFER BOX - LT230SE64 65 66 AUTOMATIC GEARBOX - ZF4HP22 - 2467 PROPELLER SHAFTS68 69 REAR AXLE70 71 72 73 74 75 FRONT AXLE76 77 78 79 STEERING80 FRONT SUSPENSION81 82 83 REAR SUSPENSION84 85 86 87 BRAKES88 RESTRAINT SYSTEMS89 90 DOORS91 EXTERIOR FITTINGS92 93 INTERIOR TRIM COMPONENTS94 SCREENS95 96 97 SEATS98 99 SUNROOF100 CHASSIS AND BODY DIMENSIONS101 102 103 104 PANEL REPAIRS105 106 107 108 BODY SEALING MATERIALS109 110 111 112 113 CORROSION PREVENTION AND SEALING114 PAINTING115 HEATING AND VENTILATION116 117 AIR CONDITIONING118 119 WIPERS AND WASHERS120 CHARGING AND STARTING121 122 LIGHTING123 BODY CONTROL UNIT124 125 126 ALARM SYSTEM AND HORN127 128 WINDOWS129 IN CAR ENTERTAINMENT130 HARNESSES131 DRIVING AIDS132 NAVIGATION SYSTEM133 INSTRUMENTS
Land Rover Discovery II79 · STEERING
79 · Steering & suspension

STEERING (Description): DESCRIPTION AND OPERATION (page 4 of 11)

Make
Land Rover
Model
Discovery II
Section
DESCRIPTION AND OPERATION
STEERINGDescription · page 4 of 11
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STEERING

57-8

DESCRIPTION AND OPERATION

Steering box
The steering box is located behind the first cross member of the chassis and is secured to the chassis rail with four 
bolts. The steering box is of the worm and roller type and has a rotary control valve. The steering box is connected to 
the steering knuckles of the front road wheels by the drop arm, drag link and track rod. The steering box is lubricated 
by the hydraulic fluid in the housing. The input shaft is attached to the steering wheel via the intermediate shaft and 
steering column. The drop arm is secured to the output shaft with a nut and tab washer. A ball joint allows movement 
between drop arm and drag link, the ball joint is secured with a locknut. The steering box  requries approximately 3.5 
turns from lock to lock.

As a maintenance aid, an alignment bolt can be used to lock the drop arm at the steering box centre position. The bolt 
fits in a groove in the rear face of the drop arm and screws in to a threaded hole on the bottom of the steering box 
housing.

Cross section through steering box

1 Relief valve stop 2 off
2 Relief valve 2 off
3 Piston
4 Rack
5 Housing
6 Output shaft
7 Roller
8 Valve rotor

9 Torsion bar

10 Input shaft
11 Pin
12 Valve sleeve
13 Course spline
14 Worm gear
15 Spline (worm gear to torsion bar)

Parts & tools for this job Staging For Land Rover Discovery

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