operators_manual

How to Replace Air Conditioner
Filter
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
ef
ficient 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.
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 the
side of the filter element with the
airflow direction that is clearly
marked on the air intake housing.
6. Replace the filter cover on the air
intake housing and slide the cover
forward in vehicle. An audible snap
sound can be heard when the
cover is correctly in place. If the
snap feature is damaged there are
two screw features that may be
utilized to retain the cover in place.
7.
Close and secure hood of vehicle.
Replace the Recirculation Air Filter
Please contact an authorized dealer when
the service interval is required to inspect
the cabin recirculation air filter.
Sleeper HVAC Air Filter
1. Lift the sleeper bunk to expose the
sleeper HVAC module.
2. Find the retention tab at the side of
the filter element and move it to
release the filter. Moving this tab
will allow the filter to be removed in
an upward direction.
3. Align the airflow direction that is
indicated on the side of the filter
element such that it points into the
HVAC housing.
4. Insert the filter and make sure the
retention tab has re-engaged to
secure the filter.
5. Close the bunk.
Noise and Emission
Control
There are specific components on the
vehicle that are designed to meet certain
Environmental Protection Agency (EP
A)
emissions and noise regulations. To
maintain conformance with the regulations,
these components need to be functional
and properly maintained.
Noise Emission Warranty
Peterbilt warrants to the first person who
purchases this vehicle for purposes other
than resale and to each subsequent
purchaser that this vehicle as
manufactured by Peterbilt, was designed,
built, and equipped to conform at the time it
left Peterbilt's control with all applicable
U.S. EPA Noise Control Regulations.
This warranty covers this vehicle as
designed, built, and equipped by Peterbilt,
and is not limited to any particular part,
component, or system of the vehicle
manufactured by Peterbilt. Defects in
design, assembly, or in any part,
component, or system of the vehicle as
manufactured by Peterbilt, which, at the
time it left Peterbilt's control, caused noise
MAINTENANCE - Noise and Emission Control
280 Y53-6110-1A1 (01/21)
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