User Guide
Noise
Control
System
The following information relates
to
compliance with
Federal noise emission standards for vehicles with
a
Gross Vehicle Weight Rating (GVWR)
of
more
than
10,000
Ibs.
(4
536
kg).
The Maintenance Schedule
booklet provides information on maintaining
the
noise
control system to minimize degradation
of
the noise
emission control system during
the
life
of
your vehicle.
The noise control system warranty is given
in
your
Warranty booklet.
These standards apply only to vehicles
sold
in
the
United States.
Tampering With Noise Control
System
Prohibited
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.
Insulation:
Removal
of
noise shields
or
underhood insulation.
Engine:
Removal or rendering engine speed governor
(if
so
equipped) inoperative
so
as to
allow
engine speed
to
exceed manufkcturer specifications.
Fan and Drive:
0
Removal of fan clutch (if
so
equipped) or rendering
clutch inoperative.
Removal
of
fan shroud (if
so
equipped).
Air Intake:
Removal
of
air cleaner silencer
@
Reversing air cleaner cover.
Exhaust:
Removal of muffler and/or resonator.
Removal
of
exhaust pipes and exhaust pipe clamps.
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