freightliner Argosy COE Maintenance Manual page 134

83
2. Remove the two Torx
HVAC air filter cover to the air intake plenum.
See Fig. 2.
1
2
12/18/96
1. HVAC Plenum
2. Filter Cover
Fig. 2, HVAC Air Intake Plenum, Water-Valve Controlled
3. Pivot the front end of the cover out to remove
the cover, and pull the air filter out of the air in-
take plenum.
4. Install a new air filter.
4.1 Slide a new air filter into the air intake
plenum.
NOTE: When installing the HVAC air filter,
be sure that it is oriented properly. The filter
label has an arrow that indicates the air flow
direction. See Fig.
4.2 Install the air filter cover on the plenum
and install the two Torx screws.
5. Remove the chocks from the tires.
Cab Fresh Air Filter
Replacement, Blend Air
If the vehicle is equipped with a cab fresh air filter, it
must be replaced every six months regardless of
mileage to permit proper operation of the HVAC
system.
83/2
®
screws that secure the
3
f830768
3. Torx Screws
3.
Heater and Air Conditioner
2
1
12/18/96
1. Air Filter
2. Air Flow Direction Arrow
Fig. 3, HVAC Air Filter, Water-Valve Controlled
CAUTION
If equipped with a fresh air filter, it should be re-
placed every six months. If the fresh air filter is
not replaced every six months, damage to the
heater and air conditioner components could
occur.
IMPORTANT: When replacing the air filter, use
only a Freightliner-approved air filter.
1. Park the vehicle on a level surface. Apply the
parking brakes and chock the rear tires.
2. Lift the wire retainer on the air filter cover up and
over the upper edge of the cover, and pull the
wire retainer down. See
3. Note the direction of the arrow on the air filter
cover, then remove the cover and the attached
filter.
4. Remove the air filter from the air filter cover. Dis-
card the air filter.
5. Attach a new air filter to the air filter cover. Make
sure the arrow on the filter is pointing in the
same direction as the arrow on the cover.
6. Install the air filter and air filter cover in the
HVAC air intake plenum.
7. Pull the wire retainer up and over the upper edge
of the air filter cover.
Century Class Trucks Maintenance Manual, April 2003
f830769
Fig. 4.