Peterbilt 325 2017, Operator'S Manual

Page: 331 / 392

HEATER AND AIR CONDITIONER
Air Conditioner
WARNING!
The air conditioning system is under
pressure.
If not handled properly
during servicing, it could explode.
Any servicing that requires depres-
surizing and recharging the air con-
ditioning system must be conducted
by a qualified technician with the
right facilities to do the job. Failure
to comply may result in death, per-
sonal injury, equipment 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
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 parti-
cles 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
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.
(03/17) Y53-6060-1C1
5-121
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