Defender 90 NAS. Instruction - page 9
GENERAL FITTING REMINDERS
7
INFORMATION
COTTER PINS
1. Fit new cotter pins throughout when replacing
any unit.
2. Always fit cotter pins where cotter pins were
originally used. Do not substitute spring
washers: there is always a good reason for the
use of a cotter pin.
3. All cotter pins should be fitted as shown unless
otherwise stated.
NUTS
1. When tightening a slotted or castellated nut
never loosen it to insert cotter pin or locking wire
except in those recommended cases where this
forms part of an adjustment. If difficulty is
experienced, alternative washers or nuts should
be selected, or washer thickness reduced.
2. Where self-locking nuts have been removed it is
advisable to replace them with new ones of the
same type.
NOTE: Where bearing pre-load is involved
nuts should be tightened in accordance
with special instructions.
LOCKING WIRE
1. Fit new locking wire of the correct type for all
assemblies incorporating it.
2. Arrange wire so that its tension tends to tighten
the bolt heads, or nuts, to which it is fitted.
SCREW THREADS
1. Both UNF and Metric threads to ISO standards
are used. See below for thread identification.
2. Damaged threads must always be discarded.
Cleaning up threads with a die or tap impairs the
strength and closeness of fit of the threads and
is not recommended.
3. Always ensure that replacement bolts are at
least equal in strength to those replaced.
4. Do not allow oil, grease or jointing compound to
enter blind threaded holes. The hydraulic action
on screwing in the bolt or stud could split the
housing.
5. Always tighten a nut or bolt to the recommended
torque value. Damaged or corroded threads can
affect the torque reading.
6. To check or re-tighten a bolt or screw to a
specified torque value first loosen a quarter of a
turn, then re-tighten to the correct value.
7. Oil thread lightly before tightening to ensure a
free running thread, except in the case of
threads treated with sealant/lubricant, and
self-locking nuts.
07
GENERAL FITTING REMINDERS
8
INFORMATION
UNIFIED THREAD IDENTIFICATION
1. Bolts
A circular recess is stamped in the upper surface
of the bolt head.
2. Nuts
A continuous line of circles is indented on one of
the flats of the hexagon, parallel to the axis of
the nut.
3. Studs, Brake Rods, etc.
The component is reduced to the core diameter
for a short length at its extremity.
LUBRICANTS, FLUIDS AND CAPACITIES
1
INFORMATION
RECOMMENDED LUBRICANTS AND FLUIDS
AMBIENT TEMPERATURE
°
C
COMPONENT
SPECIFICATION
VISCOSITY
-30
-20
-10
0
10
20
30
40
50
Engine V8i
Use oils to API
5W/20
service level
SG, SH
5W/30
or
5W/40
RES.22.OL.G4
or
ACEA A2:96
10W/30
10W/40
10W/50
15W/40
15W/50
20W/40
20W/50
Automatic gearbox
ATF Dexron IID
Final drive units
API or GL5
90 EP
Swivel pin
housings*
MIL - L - 2105 or
MIL - L - 2105B, C
or D
80W EP
LT 230
API GL4 or GL5
90 EP
transfer gearbox
MIL - L - 2105 or
MIL - L - 2105B
Power steering
ATF Dexron IID
Brake reservoir
Brake fluid must have a minimum
boiling point of 260
°
C (500flF) and
comply with FMVSS/116/DOT 4
Lubrication nipples
(hubs, ball joints,
etc.)
NLGI-2 multipurpose lithium based
grease
* Swivel pin housings with filler, level and drain plugs.
See table on page 2 for remaining vehicle components
09
LUBRICANTS, FLUIDS AND CAPACITIES
2
INFORMATION
Swivel pin housings
**
Molytex EP 00 GREASE to specification XP153
Propeller shaft Front
and Rear
NLGI - 2 Multi-purpose Lithium based GREASE
Lubrication nipples
(hubs, ball joints
etc.)
Seat slides
Door lock striker
Brake reservoir
Brake fluids having a minimum boiling point of 260
°
C (500
°
F) and complying with
FMVSS 116 DOT4
Engine coolant
Use an ethylene glycol based anti-freeze (containing no methanol)
V8i (aluminium)
with non-phosphate corrosion inhibitors suitable for use in aluminium engines to ensure
the protection of the cooling system against frost and corrosion in all seasons. Use one
part anti-freeze to one part water for protection down to -36
°
C (-33
°
F).
IMPORTANT: Coolant solution must not fall below proportions one part
anti-freeze to three parts water, i.e. minimum 25% anti-freeze in coolant otherwise
damage to engine is liable to occur. Or a maximum of 60%.
Battery lugs,
Petroleum jelly.
Earthing surfaces
NOTE: Do not use Silicone Grease
where paint has
been removed
Air Conditioning
System Refrigerant
Use only refrigerant R134a
Compressor Oil
Nippon Denso ND-OIL8
Unipart ND-OIL8
Speed sensor
Silicone grease: Staborags NBU - Wabco 830 502,0634
bush-rear
Wacker chemie 704 - Wabco 830 502,0164
Kluber GL301
** Swivel pin housings having a filler plug only.
LUBRICATION PRACTICE
Use a high quality oil of the correct viscosity range and service classification in the engine during maintenance and
when topping up. The use of oil not to the correct specification can lead to high oil and fuel consumption and
ultimately to damaged components.
Oil to the correct specification contains additives which disperse the corrosive acids formed by combustion and
prevent the formation of sludge which can block the oilways. Additional oil additives should not be used. Always
adhere to the recommended servicing intervals.
WARNING: Many liquids and other substances used in motor vehicles are poisonous. They must
not be consumed and must be kept away from open wounds. These substances, among others,
include anti-freeze windscreen washer additives, lubricants and various adhesives.