Illustration 42
g06217098
Typical example
(1) Top Cover
(2) Air Cleaner Body
(3) Primary Air Filter Element
(4) End Cover
(5) Vacuum Valve
1.
Ensure that the outer body of the air cleaner to be
serviced is clean and free from dirt.
2.
Inspect the top cover (1) and if necessary remove
top cover to clean cover. Ensure that dirt cannot
enter the air cleaner system with top cover
removed. If necessary, clean top cover and install.
3.
Remove end cover (4) from air cleaner body (2). If
necessary, clean end cover and ensure that the
vacuum valve (5) is clean and free from dirt.
Check the vacuum valve (5) for wear or damage,
replace if necessary.
4.
Remove primary air filter element (3) and if
equipped, remove the secondary air filter element
(Not Shown). Discard all old air filter elements.
5.
If equipped, install new secondary air filter element
(Not Shown) and install new primary air filter
element (3).
6.
Install end cover (4) to air cleaner body (2) and
secure end cover. If necessary, reset the air
service indicator, refer to this Operation and
Maintenance Manual, Engine Air Cleaner Service
Indicator - Inspect for more information.
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 43
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.
86
M0108133-04
Maintenance Section
Engine Air Cleaner Service Indicator - Inspect