Peterbilt 325 2017, Operator'S Manual

Page: 338 / 392

NOISE AND EMISSION CONTROL
Exhaust Tail Pipe
•
Check the mounting. Tighten as
necessary. The miter cut at the tip
of the pipe must be facing the rear
of the vehicle. Do not modify the
end of the pipe in any way.
Engine Fan and Shroud
WARNING!
Do not work on the fan with the en-
gine running. The engine fan can
engage at any time without warning.
Anyone near the fan when it turns on
could be injured. Before turning on
the ignition, be sure that no one is
near the fan.
•
Check all fasteners for tightness.
Check for stress cracks in the
shroud. Make sure the shroud is
adjusted so that it does not touch
the fan blades.
•
Check to verify that the fan is
disengaged (not turning) with
the engine running at normal
operating temperatures (from cold
to the point that the fan engages).
•
Check fan blade mounting bolts.
Inspect fan blades to be sure they
are not cracked or bent.
Hood Insulation Blanket
•
Check all fasteners for condition
and security. Repair or replace
any broken or defective fasteners.
•
Check for chafing or tears. Patch
it if necessary. Find the cause of
the damage. If any component
or accessory is causing wear or
damage and cannot be relocated,
put reinforcing pads on the blanket
at the site of wear.
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Y53-6060-1C1 (03/17)
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