Freightliner Columbia. Manual — part 7
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
Columbia Maintenance Manual, November 2014
09/1
Title of Maintenance Operation (MOP)
MOP Number
Air Compressor Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13–01
Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Compressor
13
Index, Alphabetical
Safety Precautions
DANGER
When working on the vehicle, shut down the en-
gine, set the parking brake, and chock the tires.
Before working under the vehicle, always place
jack stands under the frame rails to ensure the
vehicle can not drop. Failure to follow these steps
could result in serious personal injury or death.
13–01 Air Compressor
Inspection
1.
Inspect the air compressor intake hoses and
connections at the air intake and air compressor
for physical damage. If needed, change the
hoses, and/or tighten or replace the connections.
2.
Inspect the coolant supply and return lines for
tight connections. Tighten the connections and
replace the lines and fasteners if needed.
3.
For the air governor, inspect the piping and con-
nections for leaks. Replace gaskets and faulty
components as needed.
Air Compressor
13
13/1
Title of Maintenance Operation (MOP)
MOP Number
Alternator, Battery, and Starter Connections Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15–01
Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alternators and Starters
15
Index, Alphabetical
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