Peterbilt 579 - Air Conditioner

HEATER AND AIR CONDITIONER
Air Conditioner
WARNING!
The air conditioning system is under
pressure. If not handled properly dur
-
ing servicing, it could explode. Any
servicing that requires depressurizing
and recharging the air conditioning
system must be conducted by a qual
-
ied technician with the right facilities
to do the job. Failure to comply may
result in death, personal injury, equip
-
ment or property damage.
• Listen to the compressor and drive
clutch for noise and vibration.
If you nd problems, have the
system checked thoroughly. A
malfunctioning clutch usually
indicates trouble elsewhere in the
system.
• Check the evaporator core, lter,
and condenser core for debris
restricting air ow. Clean if
necessary. Small particles may
be removed
with compressed
air blown through the core in the
opposite direction of normal air
ow.
WARNING!
Wear eye protection any time you blow
compressed air. Small particles blown
by compressed air could injure your
eyes.
• Check the engine belt for condition
and proper tension.
• Check all hoses for kinks,
deterioration, chang, and leaks.
Adjust kinked or chang hoses to
eliminate restrictions and prevent
further wear.
• Check all components and
connections for refrigerant leaks.
If you discover a leak, do not try to
tighten a connection. Tightening
a connection may cause a leak
to worsen.
Have a qualied
technician correct the problem.
NOTE
A leaking
evaporator or condenser
core cannot be repaired; it must be
replaced.
Have the
air conditioning system fully
serviced annually by your authorized
dealer. Qualied service technicians
will have to evacuate and recharge the
system.
(04/13) Y53-6047–2C 5-115
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