Range Rover Classic. Manual — part 171
82
AIR CONDITIONING
4
REPAIR
AIR CONDITIONING SWITCH
Service repair no - 82.20.29
Remove
1. Remove fascia centre louvre vent panel.
See
CHASSIS AND BODY, Repair, Dash Panel
Central Louvre Panel
2. Disconnect multiplug from switch
3. From the rear, push switch out of panel.
Refit
4. Reverse removal procedure.
DUAL PRESSURE SWITCH
Service repair no - 82.20.20
Remove
1. Disconnect battery negative lead.
2. Recover refrigerant from system.
See
Adjustment, Refrigerant Recovery Recycling
Recharging
3. Disconnect multiplug from switch.
4. Unscrew switch from adapter. Use a second
spanner to support adapter.
WARNING: Wear eye and hand protection
when disconnecting components
containing refrigerant. Plug all exposed
connections immediately.
5. Remove ’O’ ring from switch.
Refit
6. Reverse removal procedure. Lubricate new ’O’
ring with refrigerant oil and fit to switch.
7. Screw switch into adapter and tighten to
11 Nm.
8. Evacuate and recharge air conditioning system.
See Adjustment, Refrigerant Recovery
Recycling Recharging
AIR CONDITIONING
5
REPAIR
COMPRESSOR
Service repair no - 82.10.20
Remove
1. Disconnect battery negative lead.
2. Recover refrigerant from air conditioning system.
See Adjustment, Refrigerant Recovery
Recycling Recharging
3. Remove screws retaining centre panel to fan
cowl
4. Remove centre panel.
V8i Engine Illustrated
5. Remove 2 bolts securing hose flanges to
compressor.
WARNING: Wear eye and hand protection
when disconnecting components
containing refrigerant. Plug all exposed
connections immediately.
6. Disconnect high pressure hose from
compressor.
7. Disconnect low pressure hose from compressor.
8. Remove ’O’ ring from each flange.
9. Disconnect electrical lead from compressor
clutch.
10. Release drive belt from compressor pulley.
See
ENGINE, Repair, Drive Belt
11. Remove 4 bolts securing compressor to
mounting bracket.
12. Remove compressor from mounting bracket.
Refit
13. New compressor to be fitted: Drain oil from new
compressor outlet port. Drain and measure oil
from old compressor. Measure new oil equal to
amount drained from old compressor, add 30 ml
extra to this amount and refill new compressor
through outlet port.
14. Locate compressor in mounting bracket, fit bolts.
Tighten to
25 Nm.
15. Connect electrical lead to compressor clutch.
16. Fit new ’O’ rings to high and low pressure hose
flanges, lubricate with refrigerant oil.
17. Engage hose flanges, fit bolts. Tighten to
10
Nm.
18. Fit compressor drive belt.
See ENGINE, Repair,
Drive Belt
19. Fit centre panel to fan cowl.
20. Evacuate and recharge air conditioning system.
See Adjustment, Refrigerant Recovery
Recycling Recharging
21. Perform a leak test on disturbed joints.
22. Carry out a functional check.
82
AIR CONDITIONING
6
REPAIR
CONDENSER
Service repair no - 82.15.07
Remove
1. Disconnect battery negative lead.
WARNING: Wear eye and hand protection
when disconnecting components
containing refrigerant. Plug all exposed
connections immediately.
2. Recover refrigerant from system.
See
Adjustment, Refrigerant Recovery Recycling
Recharging
3. Remove front grille panel.
4. Remove battery.
See ELECTRICAL, Repair,
Battery
5. Remove radiator and oil coolers assembly.
See
COOLING SYSTEM, Repair, Radiator/Oil
Coolers
6. Disconnect high and low pressure pipes at
condenser unions.
7. Discard ’O’ ring seal from each union.
8. Remove 2 bolts securing condenser to body.
9. Pull condenser into radiator area.
10. Disconnect multiplug from each fan lead.
11. Remove condenser assembly.
Do not carry out
further dismantling if component is removed
for access only. Blank off inlet and outlet ports.
AIR CONDITIONING
7
REPAIR
12. Disconnect receiver/drier pipes at condenser
unions.
13. Remove retaining bracket from side pipe.
14. Remove LH pipe from condenser and discard ’O’
ring.
15. Remove 2 screws securing receiver/drier
bracket.
16. Release pipes from lower clips and remove
receiver/drier assembly.
17. Remove ’O’ ring from RH pipe.
18. Remove 2 screws securing lower end of each
fan motor.
19. Remove 2 bolts and remove condenser lower
mounting bracket.
20. Remove 2 bolts and securing condenser upper
mounting bracket.
21. Remove upper mounting bracket and fan motor
assembly.
22. Remove 2 screws securing each side mounting
bracket and remove the brackets.
23. Transfer parts removed to new condenser.
24. Add 40 ml of refrigerant oil to new compressor to
compensate for oil loss.
Refit
25. Reverse removal procedure. 3 to 11.
26. Evacuate and recharge air conditioning system.
See Adjustment, Refrigerant Recovery
Recycling Recharging
27. Carry out leak test on disturbed joints.
See
Adjustment, Leak Test System
28. Check air conditioning operation by carrying out
a System Test.
See Adjustment, System Test
CONDENSER FANS AND MOTORS
Service repair no - 82.15.01 - Motor
Service repair no - 82.15.03 - Fan
Remove
1. Remove condenser assembly.
See Condenser
2. Remove 4 bolts securing fan cowl to condenser.
3. Remove 3 bolts securing fan motor to cowl.
4. Remove fan motor assembly.
5. Remove 3 screws securing fan blades to motor.
6. Remove fan blades.
Refit
7. Reverse removal procedure. Ensuring that wiring
is clipped and no fouling of fan blade can occur.
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