Aftertreatment
During the engine cleaning process, ensure that
water or cleaning fluids cannot enter the
aftertreatment system. If cleaning fluids enters the
aftertreatment system, damage could occur.
i06304431
Engine
Air
Cleaner
Element
-
Replace
The
engine
air
cleaner
may
be
supplied
by
the
Original
Equipment
manufacturer
(OEM),
follow
the
OEM
instructions
for
removing
and
installing
the
air
filter
element.
Typical
Example
of
an
Air
Cleaner
Illustration 52
g03896344
Typical example
1.
Ensure that the body of the air cleaner is clean
before removing the filter element.
2.
Remove the end cover (1) from body (3). Remove
the air cleaner element from body (3) and discard
the filter element.
3.
Ensure that inner body of air cleaner is clean and
free from dirt. Install new filter element.
4.
Ensure that end cover (1) and valve (2) are clean
and free from dirt. Install the end cover. When
installed, ensure that the valve (2) is in the
vertically down position.
Note:
If equipped, the air cleaner service indicator
must be checked and reset.
i02335405
Engine
Air
Cleaner
Service
Indicator
-
Inspect
Some
engines
may
be
equipped
with
a
different
service
indicator.
Some
engines
are
equipped
with
a
differential
gauge
for
inlet
air
pressure.
The
differential
gauge
for
inlet
air
pressure
displays
the
difference
in
the
pressure
that
is
measured
before
the
air
cleaner
element
and
the
pressure
that
is
measured
after
the
air
cleaner
element.
As
the
air
cleaner
element
becomes
dirty,
the
pressure
differential
rises.
If
your
engine
is
equipped
with
a
different
type
of
service
indicator,
follow
the
OEM
recommendations
in
order
to
service
the
air
cleaner
service
indicator.
The
service
indicator
may
be
mounted
on
the
air
cleaner
element
or
in
a
remote
location.
Illustration 53
g00103777
Typical service indicator
Observe the service indicator. The air cleaner
element should be cleaned or the air cleaner element
should be replaced when one of the following
conditions occur:
• The yellow diaphragm enters the red zone.
• The red piston locks in the visible position.
Test the Service Indicator
Service indicators are important instruments.
• Check for ease of resetting. The service indicator
should reset in less than three pushes.
• Check the movement of the yellow core when the
engine is accelerated to the engine rated speed.
The yellow core should latch at the greatest
vacuum that is attained.
SEBU9075-03
89
