Range Rover P38
82
AIR CONDITIONING
NEW RANGE ROVER
8
ADJUSTMENT
10. The receiver/drier should be the last component
connected to the system to ensure optimum
dehydration and maximum moisture protection of
the system.
11. All precautions must be taken to prevent
damage to fittings and connections. Slight
damage could cause a leak with the high
pressures used in the system.
12. Always use two wrenches of the correct size,
one on each fitting when releasing and
tightening refrigeration unions.
13. Joints and ’O’ rings should be coated with
refrigeration oil to aid correct seating. Fittings
which are not lubricated with refrigerant oil are
almost certain to leak.
14. All lines must be free of kinks. The efficiency of
the system is reduced by a single kink or
restriction.
15. Flexible hoses should not be bent to a radius
less than 90 mm radius.
16. Flexible hoses should not be within 100mm of
the exhaust manifold.
17. Completed assemblies must be checked for
refrigeration lines touching metal panels. Any
direct contact of lines and panels transmits noise
and must be eliminated.
PERIODIC MAINTENANCE
Routine servicing, apart from visual checks, is not
necessary. The visual inspections are as follows:
Condenser
With a water hose or air line, clean the fins of the
condenser to remove flies, leaves, etc. Check the pipe
connections for signs of oil leakage.
Compressor
Check pipe connections for signs of oil leakage.
Check flexible hoses for swelling. Examine the
compressor belt for tightness and condition.
Evaporator
Examine the refrigeration connections at the unit. If
the system should develop a fault, or if erratic
operation is noticed.
See Fault diagnosis.
COMPRESSOR DRIVE BELT - DIESEL
Service repair no - 82.20.01
Adjust
1. Disconnect battery negative lead.
2. Raise the vehicle.
WARNING: Support on safety stands.
3. Remove cover from tensioner pulley. Slacken
pulley bolt.
4. Rotate tensioner pulley clockwise. Apply
following tension:
New belt = 8 Nm. (6 lbf.ft)
Existing belt = 6 Nm. (4 lbf.ft)
5. Tighten pulley bolt whilst applying correct load.
6. Fit cover to tensioner pulley.
7. Remove safety stands. Lower vehicle.
8. Reconnect battery negative lead.