1999 LAND ROVER DEFENDER warning

CHASSIS AND BODY
27
REPAIR FACIA CONSOLE - FROM 02MY
Service repair no - 76.25.03
Remove
1.Disconnect battery earth lead.See
ELECTRICAL, Repair.
2.Remove radio.See ELECTRICAL, Repair.
3.Remove 4 screws securing instrument pack and
release pack from fascia.
4.Disconnect 2 multiplugs from warning lamp
panel.
5.Disconnect instrument pack multiplug from main
harness.
6.Remove instrument pack.
7.Remove 3 screws securing heater control and
release control from fascia.
8.Carefully prise Land Rover decal from grab
handle.
9.Remove 2 screws securing grab handle and
remove handle.
10.Remove 4 screws and remove demister vents.
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76CHASSIS AND BODY
30
REPAIR Refit
7.Insert glass into channels and carefully push to
top of frame.
8.Secure glass channels with screws. Ensure
screw heads are down below bottom of channels
to prevent damage to glass.
9.Fit inner and outer waist seal to door.
10.Fit check strap.
11.Fit check strap torsion bar and tighten nuts to10
Nm (7 lbf.ft).
12.Fit rear door mounting panel.See this Section.GLASS/SEALING RUBBER - TAIL DOOR - FROM
02MY
Service repair no - 76.31.22
Remove
1.Remove spare wheel from tail door.
2.Raise nut cover, remove nut and release wiper
arm.
3.Open rear door.
4.Remove CHMSL assembly.See
ELECTRICAL, Repair.
5.Disconnect 4 Lucar connections.
6.With assistance, from inside of vehicle apply
pressure to glass, relieve seal lip and carefully
remove glass.
WARNING: Wear suitable eye protection
when removing and refitting glass.
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77PANEL REPAIRS
10
SEALING AND CORROSION PROTECTION Underbody Protection Repairs
When body repairs are carried out, always ensure that
full sealing and corrosion protection treatments are
restored. This applies both to the damaged area, and
also to areas where protection has been indirectly
impaired as a result of accident damage or repair
operations.
Prior to straightening out or panel beating, remove all
corrosion protection material in the damaged area.
This applies in particular to panels coated with wax,
PVC underbody sealer, sound deadening pads etc.
WARNING: DO NOT use oxy-acetylene gas
equipment to remove corrosion prevention
materials. Large amounts of fumes and
gases are liberated by these materials when they
burn.
Equipment for the removal of tough anti-corrosion
sealers offers varying degrees of speed and
effectiveness. The compressed air-operated scraper
(NOT an air chisel) offers a relatively quiet mechanical
method of removal using an extremely rapid
reciprocating action. During use, direct the operating
end of the tool along the work surface.
The most common method is by the use of a hot air
blower with integral scraper.
CAUTION: High temperatures can be
generated with this equipment which may
cause fumes. Always exercise care in its
use.
Another tool, and one of the most efficient methods, is
the rapid-cutting’hot knife’. This tool uses a wide
blade and is quick and versatile, able to be used
easily in profiled sections where access is otherwise
awkward.
Use the following procedure when repairing
underbody coatings:
1.Remove existing underbody coatings.2.After panel repair, clean the affected area with a
solvent wipe, and treat bare metal with an etch
phosphate material.
3.Re-prime the affected area.DO NOT under any
circumstances apply underbody sealer
directly to bare metal surfaces.
4.Replace all heat-fusible plugs which have been
disturbed. Use rubber grommets of equivalent
size if plugs are not available, but ensure that
they are embedded in sealer.
5.Mask off all mounting faces from which
mechanical components, hoses and pipe clips,
have been removed. Underbody sealer must be
appliedbeforesuch components are refitted.
6.Brush sealer into all exposed seams.
7.Spray the affected area with an approved
service underbody sealer.
8.Remove masking from component mating faces,
and touch-in where necessary. Allow adequate
drying time before applying underbody wax.
Underbody Wax
After refitting mechanical components, including
hoses, pipes and small fixtures, mask off the brake
discs and apply a coat of approved underbody wax.
NOTE: Where repairs include the
application of finish paint coats in the
areas requiring underbody wax, paint
operations must be carried out BEFORE wax
application.
Underbonnet Wax
Where repairs have involved replacement of engine
bay panels, treat the entire engine compartment
including all components, clips and small fixtures with
an approved underbonnet lacquer or wax.
Proprietary Anti-Corrosion Treatments
The application of proprietary anti-corrosion
treatments in addition to the factory-applied treatment
could invalidate the Corrosion Warranty and should be
discouraged. This does not apply to approved,
compatible, preservative waxes which may be applied
on top of existing coatings.
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PANEL REPAIRS
1
PROCEDURES GENERAL WELDING PRECAUTIONS
The following pages show the procedures to follow
when using welding for repairs. No resistance spot
welds have been used in any of the repairs.
The Aluminium alloy used on all Defender models is a
combination of Aluminium and Magnesium.
When converting a MIG welder for use on Aluminium
it is essential the following components are changed.
The materials shown in brackets are the correct
materials to use:
Torch liner (Teflon or Carbon Fibre)
Contact tip
Feed rollers/wheels
Correct Filler wire (combination of
Aluminium and Magnesium)
Shielding gas (Argon)
When carrying out welding operations the following
criteria must be observed:
Where resistance spot welds have been
used in production, these must be replaced
with either MIG plug welds or rivets.
To replace each production spot weld an 8
mm (0.31 in) hole must be drilled and/or
punched, and a MIG weld then made in its
place. The number of plug welds must
match exactly the number of spot welds
which have been removed.
Where holes are left in an existing panel
after removal of the spot welds, a single
MIG plug weld will be made in each hole as
appropriate.
When MIG welding ensure the correct wire
is used.
The replacement welds in the welding
diagrams are denoted by the following
symbols:
A. MIG Plug welds
B. MIG seam weld
Seat Belt Anchorages
Seat belt anchorages are safety critical. When making
repairs in these areas it is essential to follow design
specifications.
Where possible, the original production assembly
should be used, complete with its seat belt
anchorages, or the cut line should be so arranged that
the original seatbelt anchorage is not disturbed.
All welds within 250mm (9.9in.) of seat belt
anchorages must be carefully checked for weld
quality, including spacing of spot welds. A crack
detection process must be carried out in these areas.
WARNING: Body parts incorporating seat
belt anchorages MUST be renewed
completely if damaged beyond repair, as
the welds in these areas are safety critical and
cannot be disturbed.
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77PANEL REPAIRS
2
PROCEDURES PANEL REPLACEMENT PROCEDURE
General
This information is designed to explain the basic panel
removal and replacement method. This standard
method may vary slightly from one vehicle to another.
The main criterion in removal and replacement of
body panels is that Land Rover’s original standard is
maintained as far as possible.
All repair processes and procedures shown relate to
Aluminium panels.
Remove Panel
1.Expose resistance spot welds. For those spot
welds which are not obviously visible, use a
rotary drum sander or wire brush fitted to an air
drill, or alternatively a hand held wire brush.
WARNING: Ensure breathing mask and
protective glasses are worn during
operations where Aluminium particles are
removed.
CAUTION: Never use a sanding disc that
has previously been used on steel, as iron
deposits could be left on the surface of the
Aluminium.
NOTE: In wheel arch areas it may be
necessary to soften underbody coating
using a hot air gun, prior to exposing spot
welds.
2.Cut out welds using a cobalt drill.
3.Alternatively use a clamp-type spot weld
remover.
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PANEL REPAIRS
3
PROCEDURES
4.Cut away the bulk of the panel as necessary
using an air saw.
NOTE: On certain panel joints MIG welds
and braze should be removed using a
sander where possible, before cutting out
the panel bulk.
5.Separate spot welded joints and remove panel
remnants using hammer, bolster chisel and
pincers.Prepare Old Surfaces
6.Clean all panel joint edges to a bright smooth
finish, using a belt-type sander.
NOTE: Prior to sanding, remove remaining
sealant using a hot air gun to minimise the
risk of toxic fumes caused by generated
heat.
WARNING: Care must be taken to avoid
excessive heat build up which may be
caused by this equipment.
7.Straighten existing joint edges using shaping
block and hammer.
CAUTION: Where significant straightening
is required, heat must be applied to the
area to avoid stretching the Aluminium.
CAUTION: All tools used for working with
Aluminium must be kept separate from
those used on steel.
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AIR CONDITIONING
1
ADJUSTMENT REFRIGERANT RECOVERY, RECYCLING,
RECHARGING
Service repair no - 82.30.02
WARNING: The air conditioning system is
charged with a high pressure, potentially
toxic refrigerant. Repairs or servicing must
only be carried out by an operator familiar with
both the vehicle system and the charging and
testing equipment.
WARNING: All operations must be carried
out in a well ventillated area away from
open flame and heat sources.
WARNING: Wear eye and hand safety
protection.
CAUTION: Overcharging air conditioning
system will cause excessive head
pressure.
An air conditioning portable Refrigerant Recovery
Recycling Recharging Station for use with R134a
refrigerant incorporates all the features necessary to
recover R134a refrigerant from the air conditioning
system; to filter and remove moisture; to evacuate and
recharge with the reclaimed refrigerant. The unit can
also be used for performance testing and air
conditioning system analysis.
The operator must adhere to the equipment
manufacturer’s instructions.
Refrigerant Recovery
1.Remove dust caps from high and low pressure
connectors.
2.Connect high and low pressure hoses to
appropriate connections.
3.Open valves on connectors.
4.Turn valves on refrigerant station to correct
positions.
NOTE: Operate the refrigerant station in
accordance with the manufacturers
instructions.
5.Turn Process switch to correct position.
6.Turn Main switch to’ON’.
7.Allow station to recover refrigerant from system.8.Close valves on refrigerant station.
9.Turn Main switch to’OFF’.
10.Close valves on connectors.
11.Disconnect high and low pressure hoses from
connectors.
12.Fit dust caps to connectors.
13.Open tap at rear of station to drain refrigerant oil
recovered from system.
14.Measure and record quantity of refrigerant oil
recovered from system.
15.Close tap at rear of station.
Evacuation
CAUTION: Whenever the refrigerant
system is opened, the receiver/drier must
be renewed immediately before evacuating
and recharging the system.
1.Remove dust caps from high and low pressure
connectors.
2.Connect high and low pressure hoses to
appropriate connections.
3.Open valves on connectors.
4.Turn valves on refrigerant station to correct
positions.
5.Turn Process switch to correct position.
6.Turn Main switch to’ON’.
7.Allow station to evacuate system.
NOTE: If the vacuum reading is below
700mmHg after 15 minutes, suspect a leak
in the system. Partially recharge the
system and check for leaks using an electronic
leak tester. Check suction lines first, then run the
compressor for 5 minutes. Next check the high
pressure lines.
NOTE: The system must be evacuated
immediately before recharging
commences. Delay between evacuation
and recharging is not permitted.
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82AIR CONDITIONING
2
ADJUSTMENT Recharging
WARNING: Refrigerant must always be
recycled before re-use, to ensure that the
purity of the refrigerant is high enough for
safe use within the air conditioning system.
Recycling should always be carried out with
equipment which is design certified by
Underwriter Laboratory Inc. for compliance with
SAE-J1991. Other equipment may not re-cycle the
refrigerant to the required level of purity.
WARNING: A R134a Refrigerant Recovery
Recycling Recharging station must not be
used with any other type of refrigerant.
WARNING: R134a refrigerant from
domestic and commercial sources must
not be used in motor vehicle air
conditioning systems.
CAUTION: When a major repair has been
carried out, a leak test should be carried
out using inert gas.
1.Close valves on refrigerant station.
2.Close valve on oil charger.
3.Disconnect yellow hose from refrigerant station.
4.Remove lid from oil charger.
5.Pour correct quantity of refrigerant oil into oil
charger.
6.Fit lid to oil charger.
7.Connect yellow hose to refrigerant station.
8.Open valve on oil charger.
9.Move pointer on refrigerant gauge to mark
position of refrigerant drop.
10.Slowly open correct valve on refrigerant station
and allow vacuum to pull refrigerant into system.
11.Close valve on refrigerant station when correct
amount of refrigerant has been drawn into air
conditioning system.
12.If the full charge is not accepted by the system,
start the engine and run it at 1,500 rev/min for a
minimum of 2 minutes. Switch on the air
conditioning system, open the vehicle windows,
set the temperature control to cold and the
blower switch to maximum.
13.Consult Refrigerant station instruction manual for
correct procedure to complete the charge.
14.Turn Main switch to’OFF’.
15.Close valves on connectors.
16.Disconnect high and low pressure hoses from
connectors.
17.Fit dust caps to connectors.
18.Carry out performance test on air conditioning
system.
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