Air Intake System; Turbocharger - Peterbilt 579 Operator's Manual

ENGINE

Air Intake System

Engine heat, vibration, and age
combine to loosen air intake
connections and cause cracks in
the tubing and elbows. Leaks in the
intake system allow abrasive dust to
enter the engine and quickly cause
expensive damage. During your daily
walk-around inspection, carefully
check all tubing, elbows, clamps,
supports and fasteners for condition
and tightness.
•
Check the Charge-Air-Cooler for
air leaks annually. The air leaks
can be caused by cracked tubes
5
or header. For service see your
authorized dealer.
CAUTION
Do not use air intake pipes and con-
nections as a step or to pull yourself
up. This could loosen the connections
and open the system to unfiltered air
which could damage the engine.
5-98

Turbocharger

When servicing the air intake and
exhaust systems on a turbocharged
engine, check the items listed below.
WARNING!
Do not operate engine with tur-
bocharger intake piping disconnected.
A suction is created when the engine
is running. This suction could draw
your hand or anything else near it into
the impeller fan. You could be injured.
Always keep the intake piping con-
nected when you will be running the
engine.
Lubricating System: Check the oil
lines, housing, and connections. Look
for leaks, damage, or deterioration.
Leaks could mean you have damaged
oil lines or oil seals.
Manifold: With the engine operating,
check for leaking manifold or flange
gaskets.
Y53-6047–2C
High Frequency Vibration: Vibration
may indicate turbo rotor imbalance.
Have your dealer investigate this
immediately. If you detect any
deficiencies, take the vehicle to an
authorized dealer for servicing. Delay
could lead to severe and expensive
damage to your vehicle.
(04/13)