operators_manual

filter will come off once the
brackets are removed.
1
Noise and Emission
Control
There are specific components on the
vehicle that are designed to meet certain
Environmental Protection Agency (EPA)
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
emissions to exceed Federal standards,
are covered by this warranty for the life of
the vehicle.
T
ampering with Noise Control
System
Federal law prohibits the following acts or
the causing thereof:
1. The removal or rendering
inoperative by any person other
than for purposes of maintenance,
repair, or replacement, of any
device or element of design
incorporated into any new vehicle
for the purpose of noise control
prior to its sale or delivery to the
ultimate purchaser or while it is in
use, or
2. The use of the vehicle after such
device or element of design has
been removed or rendered
inoperative by any person. Among
those acts presumed to constitute
tampering are the acts listed below:
Air Intake
System
Removing or rendering inoperative
the air filter housing/silencers or
intake piping
Engine
Cooling
System
Removing or rendering the fan
clutch inoperative
Removing the fan shroud
MAINTENANCE - Noise and Emission Control
Be sure to inspect and replace the filter
located in the left side footwell. How to
Replace Air Conditioner Filter for 520
except Right Hand Stand Applications on
page 228
Replace the Recirculation Air Filter
Please contact an authorized dealer when
the service interval is required to inspect
the cabin recirculation air filter.
Y53-6096-1C1 (09/20) 229
5