Air Conditioner - Peterbilt 579 Operator's Manual

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-
ified 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 find problems, have the
system checked thoroughly. A
malfunctioning clutch usually
indicates trouble elsewhere in the
system.
•
Check the evaporator core, filter,
and condenser core for debris
restricting air flow. Clean if
necessary. Small particles may
(04/13)
be removed with compressed
air blown through the core in the
opposite direction of normal air
flow.
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, chafing, and leaks.
Adjust kinked or chafing 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
Y53-6047–2C
HEATER AND AIR CONDITIONER
to worsen. Have a qualified
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. Qualified service technicians
will have to evacuate and recharge the
system.
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