Defender 90 NAS. Manual - part 5

04

GENERAL SPECIFICATION DATA

6

INFORMATION

SHIFT SPEEDS - AUTOMATIC ZF

OPERATION

SELECTOR

VEHICLE SPEED

ENGINE SPEED

POSITION

APPROX

APPROX RPM

KICKDOWN (KD)

MPH

KPH

KD4 - 3

D

92 - 100

149 - 164

KD3 - 2

3(D)

57 - 62

99 - 108

KD2 - 1

2(D,3)

30 - 37

48 - 61

KD3 - 4

D

N/A

N/A

KD2 - 3

D(3)

66 - 69

105 - 114

4750 - 5200

KD1 - 2

D(3,2)

37 - 44

61 - 70

4600 - 5250

FULL THROTTLE (FT)

FT4 - 3

D

67 - 73

107 -118

FT3 - 2

3(D)

44 - 53

70 - 80

FT3 - 4

D

81 - 88

130 - 141

3980 - 4330

FT2 - 3

D(3)

60 - 66

96 - 105

4350 - 4800

FT1 - 2

D(3,2)

32 - 37

52 - 61

3950 - 4650

PART THROTTLE (PT)

PT4 - 3

D

51 - 60

82 - 94

PT3 - 2

D(3)

32 - 41

53 - 65

PT2 - 1

D(3,2)

11 - 13

18 - 21

LIGHT THROTTLE (LT)

LT3 - 4

D

28 - 33

47 - 54

1430 - 1650

LT2 - 3

D(3)

20 - 24

32 - 38

1420 - 1820

LT1 - 2

D(3,2)

10 -11

15 - 18

1180 - 1220

ZERO THROTTLE (ZT)

ZT4 - 3

D

21 - 27

34 - 45

ZT3 - 2

D(3)

13 - 16

21 - 26

ZT2 - 1

D(3,2)

7 - 8

11 - 12

TORQUE CONVERTER

Lock up (IN)

D

56 - 59

89 - 94

1875 - 2000

Unlock (OUT)

D

54 -57

85 - 91

1825 - 1930

NOTE: The speeds given in the above chart are approximate and only intended as a guide. Maximum shift
changes should take place within these tolerance parameters.

GENERAL SPECIFICATION DATA

7

INFORMATION

STEERING

Power steering box

Make and type

Adwest Varamatic - worm and roller box

.................................................................

Ratio

Variable: straight ahead 19.3:1 to 17.2:1 on lock

.................................................................................

Steering wheel turns lock to lock

3.75

......................................

Steering pump

Make and type

ZF Unicorn

.................................................................

Operating pressure:

bar

Straight ahead at idle - max

7.0

....................................

100

Full lock, left or right at idle - min

28

.............................

400

Full lock, left or right at 1000 rev/min

70-77

......................

1000-1100

Steering geometery

Steering wheel diameter

412mm

..................................................

16.25 in

Steering column type

Collapsible coupling

.......................................................

Steering damper

Double acting fitted between drag link and pinion

...............................................................

housing

Toe-out - measurement

0 to 2.0mm

....................................................

0 to 0.08 in

Toe-out - included angle

0

o

to 0

o

20’

..................................................

Camber angle

0

o

*

..................................................................

Castor angle

3

o

*

.....................................................................

Swivel pin inclination

7

o

*

........................................................

* Check with vehicle in static unladen condition with
23 l, 6 US gal of fuel. Rock the vehicle up and down at
the front to allow the suspension to take an
unstressed position.

SUSPENSION

Type

Coil springs controlled by telescopic dampers front

.................................................................................

and rear.

Front

Transverse location of axle by Panhard rod, and fore

.................................................................................

and aft location by two radius arms. Anti-roll bar fitted.

Rear

Fore and aft movement inhibited by two tubular trailing

.................................................................................

links. Lateral location of axle by a centrally positioned
’A’ frame, upperlink assembly, bolted at the apex to a
ball joint mounting. Anti-roll bar fitted.

Road spring data

90 model weight

2550 Kg

...............................................................

5622 lb

Front

Driver side

NRC 9446 BLUE/GREEN

...............................................................

Passenger side

NRC 9447 BLUE/YELLOW

.......................................................

Rear

Driver side

NRC 9448 RED/BLUE

...............................................................

Passenger side

NRC 9449 YELLOW/WHITE

.......................................................

04

GENERAL SPECIFICATION DATA

8

INFORMATION

Shock absorbers

Type

Telescopic, double-acting non-adjustable

.................................................................................

Bore diameter

35.47mm

...................................................................

1.396 in

BRAKES

Front service brake

Caliper

AP Lockheed, four opposed pistons

..............................................................................

Operation

Hydraulic, self adjusting

.........................................................................

Disc

Ventilated, outboard

..................................................................................

Disc diameter

298mm

...................................................................

11.73 in

Disc thickness

24mm

..................................................................

0.945 in

Wear limit - per side of disc

1mm

..............................................

0.04 in

Disc run-out maximum

0.15mm

.....................................................

0.006 in

Pad area

58cm

2

..........................................................................

9.0 in

2

Total swept area - per disc

801cm

2

...............................................

124 in

2

Pad material

Ferodo 3440FM non asbestos

.....................................................................

Pad minimum thickness

3mm

...................................................

0.12 in

Rear service brake

Caliper

AP Lockheed opposed piston

..............................................................................

Operation

Hydraulic, self adjusting

.........................................................................

Disc

Solid, outboard

..................................................................................

Disc diameter

290mm

...................................................................

11.42 in

Disc thickness

12.5mm

..................................................................

0.490 in

Wear limit - per side of disc

0.38mm

..............................................

0.015 in

Disc run-out maximum

0.15mm

.....................................................

0.006 in

Pad area

30.5cm

2

..........................................................................

4.73 in

2

Total swept area - per disc

694cm

2

...............................................

106.98in

2

Pad minimum thickness

3mm

...................................................

0.12 in

Pad material

Ferodo 3440FM non asbestos

.....................................................................

Parking brake

Type

Mechanical, cable operated drum brake on the rear of

.................................................................................

the transfer gearbox output shaft

Drum internal diameter

254 mm

.....................................................

10.0 in

Width

70mm

................................................................................

2.75 in

Pad material

Ferodo 3611 non asbestos

.....................................................................

Servo/master cylinder

Manufacturer

Lucas

....................................................................

Servo type

LSC 80, ratio 4.0:1

........................................................................

Master cylinder tandem type - diameter

25.4 mm

...........................

1.0 in

Pressure reducing valve, failure conscious:

Cut-in pressure

24 bar

........................................................

360 lbf/in

2

GENERAL SPECIFICATION DATA

9

INFORMATION

AIR CONDITIONING

System

CFC free expansion valve system

.............................................................................

Compressor

Nippon Denso 10PA17

.....................................................................

Refrigerant

R134a

.......................................................................

Charge quantity

900 gm

±

30 gm

.......................................................

32 oz

±

1 oz

Refrigerant oil

180 ml

...................................................................

6.3 oz

WIPER MOTORS

Windscreen wiper motor

Make/type

Lucas 14W uprated two speed

........................................................................

Armature end float

0.1 to 0.2 mm

............................................................

0.004 to 0.008 in

Brush length, minimum

4.8 mm

....................................................

0.20 in

Brush spring tension

140 to 200 g

........................................................

5 to 7 oz

Resistance of armature winding at 16flC, 68flF
measured between adjacent commutatator segments

0.23 to 0.35 ohms

.....

Light running, rack disconnected: current at 13.5 V

2.0 A

.........

Wiper speed, wet screen, 60 seconds from cold:

Low speed

45

±

3 rev/min

...............................................................

High speed

65

±

5 rev/min

..............................................................

Tailgate wiper motor

Make/type

IMOS (non-serviceable)

........................................................................

Running current, wet screen at 20

°

C, 68

°

F ambient

1.0 to 2.8 A

........

Wiper speed, wet screen at 20

°

C, 68

°

F ambient

37 to 43 cycles per minute

.............