Air Filters - Peterbilt 579 Operator's Manual

HEATER AND AIR CONDITIONER
refrigerant leak on your vehicle have
your system serviced immediately and
observe the following precautions:
Stay away from the hot engine until the
exhaust manifold has cooled.
Do not permit any open flame in the
area. Even a match or a cigarette
lighter may generate a hazardous
quantity of poisonous gas.
Do not smoke in the area. Inhaling
gaseous refrigerant through a cigarette
may cause violent illness.
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5-112

Air Filters

Cabin Fresh Air Filter
The fresh air filter for the cab HVAC is
located in the air intake housing that is
located in the passenger rear corner of
the engine compartment. The filter can
be replaced without using any tools.
Inspect and clean cab air filter
element every 3 - 6 months of
service. Depending on the operating
environment, if air flow from the air
conditioner and heater is less efficient
or windows fog easier, you may need
to replace the cab air filter.
1. Tilt the hood open.
2. Locate air intake housing at
passenger rear corner of vehicle
under the rain tray.
Y53-6047–2C
3. Locate filter cover labeled "OPEN"
with an arrow pointing rearward in
vehicle. Slide filter cover rearward
in vehicle until you are able to
remove the cover.
4. Remove and inspect filter referring
to maintenance interval schedule.
5. Replace filter in housing taking
care to align the airflow direction
that is indicated on the side of
(04/13)