AIR
CONDITIONING
Page
T11
otrt the checks in a covered garage.
4.
Increase the engine speed to
2000
r.p.m. and check thot the refrigerant
passing the sight glass
is
clear of bubbles. If a continuous stream of
bubbles
still
persists then, the refrigerant charge should be increased until
the bubbles are no longer present.
5.
Before disconnecting the service valves from the compressor, check the
system for leaks using a leok detector capable of detecting a leak of
1
lb
in 32 years.
This
leak standard applies to all connections except the
fol lowing:
1
.
Compressor front seal
2.
Uncapped Schraeder valves
3.
Sight glass
The leak standard for the above
is
1
lb in
10
years. It will therefore be
necessary to have a leak detector capable of covering both standards.
It
is
recommended that the leak test be performed in a halogen
-
free atmosphere
with no significant droughts of air.
CONDENSER
To Remove
1.
Depressurise the air conditioning system by slackening the union nut securing
the pipe to the receiver
-
drier. Take the necessary precautions described under
d
the heading 'Refrigerant Pipework'.
2.
From under the front of the vehicle, release the plpes from each side of the
condenser. Take the necessary precautions described under the headlng
'Refri
g
erant Pipework'.
3.
Release the condenser from the mounting brackets and remove the condenser.
To
Replace
l.
Reverse the removal procedure. Before assembling the pipework add one fluid
ounce of refrigerant oil to the system and lubricate the flared ends and union
threads with refrigerant oil. See under heading 'Refrigerant Lubricants' for
recommended refrigerant oils.
DO
NOT
USE
ANY
OTHER
LUBRICANT. Tighten
8
all unions to a torque loading of 3.463.87 kg.m (25-28 1bs.ft.).
2.
Recharge the system with refrigerant as previously described.
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