09–01 Air Cleaner Element
Inspection and
Replacement
Restriction of air flow through the air cleaner element
is measured at the tap in the air cleaner outlet.
Check the restriction indicator at the air cleaner or in
the cab if the vehicle is equipped with a dash-
mounted restriction gauge.
Vehicles may be equipped with either a manual-reset
restriction indicator with graduations (
), or a
go/no-go restriction indicator without graduations
(
1.
Inspect the air restriction indicator to see if air
restriction equals or exceeds the maximum al-
lowable restriction. For instructions, see the ve-
hicle Driver’s Manual.
NOTICE
Do not use aftermarket air-cleaner elements. After-
market air-cleaner elements may not seal the
housing correctly, which can lead to engine dam-
age and potentially the loss of warranty. When re-
placing an air-cleaner element, use only the part
listed in PartsPro for the serial number of the ve-
hicle.
2.
If necessary, replace the air cleaner element. For
air cleaner element replacement instructions, see
Group 09
of the vehicle Workshop Manual.
3.
Inspect the air cleaner housing for cracks, leaks,
or any other damage. If the air cleaner housing
or element is damaged, replace it.
4.
Reset the air restriction indicator.
5.
Each time the air cleaner housing is replaced,
perform the procedures in
MOP 13–01
.
08/07/2007
f090452
Fig. 1, Manual-Reset Air Restriction Indicator,
Graduated
04/08/2005
f090431
Fig. 2, Manual-Reset Air Restriction Indicator, Go/
No-Go
Air Intake
09
Business Class M2 Maintenance Manual, November 2014
09/1
Property of American Airlines
