Land Rover Defender V8i Workshop Supplement Rover Manual

82AIR CONDITIONING
4
REPAIR TRINARY PRESSURE SWITCH
Service repair no - 82.20.04
Remove
1.Disconnect battery negative lead.
2.Recover refrigerant from system.
See
Adjustment, refrigerant recovery, recycling,
recharging
3.Access below front RH of vehicle: Disconnect
multiplug from switch.
4.Remove switch from adaptor.
WARNING: Wear eye and hand protection
when disconnecting components
containing refrigerant.
5.Remove O ring from switch and discard.
Refit
6.Lubricate NEW O ring with refrigerant oil and...

AIR CONDITIONING
5
REPAIR RESISTOR UNIT
Service repair no - 82.20.26
Remove
NOTE: Access below evaporator unit.
1.Loosen outer screw securing resistor unit to
clamp.
2.Rotate resistor on motor.
3.Disconnect Lucars from resistor unit.
NOTE: Resistor wires: G, U, R and O
4.Remove screws securing resistor to clamp.
5.Remove resistor unit and clamp.
Refit
6.Position clamp over motor and place resistor,
terminals downward, onto motor.
7.Fit screws and tighten inner screw only.
8.Fit Lucars to resistor unit,...

82AIR CONDITIONING
6
REPAIR
8.Disconnect 2 Lucars from temperature control
switch.
9.Disconnect multiplug from fan switch.
10.Remove bezel assembly.
Do not carry out further dismantling if component
is removed for access only.
11.Pull control knobs from switches.
12.Remove switch panel.
13.Remove nuts securing switches to bezel.
14.Remove temperature control switch.
15.Remove fan switch.
16.Transfer components to new panel.Refit
17.Position bezel assembly and connect multiplug
to fan switch.
18.Connect...

AIR CONDITIONING
7
REPAIR EXPANSION VALVE
Service repair no - 82.25.01
Remove
1.Remove evaporator.
See evaporator
2.Using a backing spanner, loosen union nut and
remove high pressure pipe.
3.Discard O ring.
4.Pull insulation away from capillary tube coil and
low pressure pipe.
5.Loosen clip and withdraw capillary tube coil from
low pressure pipe.
6.Loosen capillary tube union and disconnect
union from low pressure pipe. Discard O ring.
7.Using a backing spanner, loosen union nut and
remove expansion...

82AIR CONDITIONING
8
REPAIR Refit
12.Clean sealant from blower flanges.
13.Apply a bead of Silicone Sealant around each
blower flange.
14.Connect Lucars to resistor unit in correct order.
15.Position blower flanges on evaporator casing
and secure with screws.
16.Connect Lucars (B and O wires) to blower motor.
17.Fit evaporator.
See evaporato; Refit
18.Carry out system test.See Adjustment,
System test
EVAPORATOR
Service repair no - 82.25.20
Remove
1.Disconnect battery negative lead.
2.Recovery refrigerant...

AIR CONDITIONING
9
REPAIR 8.Using a backing spanner, loosen union nut from
evaporator feed pipe and disconnect. Discard O
ring.
CAUTION: Plug the connections.
9.Ease 2 evaporator studs from their rubber
bushes, release grommet from bulkhead,
withdraw pipes from aperture and position
evaporator unit on floor.
10.Remove screw securing harness P clip to rear
of casing.
11.Disconnect Lucar (B wire) from motor.
12.Disconnect Lucars (G, U, and R wires) from
resistor unit.
13.Remove screw securing mounting...

82AIR CONDITIONING
10
REPAIR Refit
25.Lubricate NEW O rings with refrigerant oil and
fit to pipe ends.
26.Fit expansion valve to pipe, DO NOT tighten
union nut.
27.Connect capillary tube and tighten union nut.
28.Position capillary tube coil on low pressure pipe
and secure with clip.
29.Wrap capillary coil and union with Prestite tape.
30.Connect high pressure pipe to expansion valve,
carefully align with low pressure pipe and tighten
union nut.
31.Tighten expansion valve union nut.
32.Position...

AIR CONDITIONING
11
REPAIR
10.Remove fusebox cover.
11.Disconnect multiplug from main harness.
12.Remove screw securing earth eyelet to fusebox
bracket.
13.Pull harness from between centre console and
bulkhead.
14.Remove grommet from harness.
15.Remove P clip from harness.16.Extract harness from front of engine
compartment and pass through bulkhead into
footwell area. Remove air conditioning harness.
Refit
17.Position harness in footwell and route harness
into engine bay, follow evaporator and receiver...

AIR CONDITIONING
1
SPECIFICATIONS, TORQUE TORQUE VALUES
Air conditioning Nm lbf.ft
Compressor to mounting bracket 25..................................... 18
Compressor pipe flange bolts 10.......................................... 7
Receiver drier union bolts 6................................................ 4.5
Trinary pressure switch 11.................................................... 8
Pressure pipe union nuts - M16 14....................................... 10
Discharge pipe union nuts - M22...