Remove and Install
AIR FILTER ASSEMBLY (TIER 3/STAGE
IIIA)
Remove
1.
Open left-hand hood door. See Hood Assembly.
2.
Tag and disconnect the electrical connector
from vacuum switch by pressing the metal clip.
3.
Loosen the air duct clamp at the filter housing.
See Figure 2.
4.
Close left-hand hood door to access the Pre-
cleaner.
5.
Remove the Precleaner, with the air duct at-
tached, from the air filter housing.
6.
Open left-hand and right-hand hood doors.
7.
Loosen the hose clamps on the air filter hose
and remove the hose. See Figure 2.
8.
Place a cap on the air inlet of the turbocharger
to avoid dirt entering the turbocharger.
9.
Place a support under the air filter assembly.
10.
Remove the cap screws and washers from the
mounting clamps that hold the air filter assem-
bly.
11.
Rotate the air filter until the air duct connec-
tion clears the center of the hood opening and
move the air filter to the right-hand side of the
truck.
12.
Remove the retaining hardware from the
mounting clamps and remove the clamps from
the hood by removing the hardware.
Install
1.
Install the retaining hardware to the mounting
clamps and install the clamps under the hood.
2.
Position the air filter housing into the mount-
ing clamps with the air intake aligned with the
hole in the mounting plate.
3.
Install cap screws and washers and tighten to
38 N•m (28 lbf ft).
4.
Remove the cap from the turbocharger.
5.
Rotate and connect air filter hose to air filter
housing and the turbocharger and tighten hose
clamps to 8 N•m (6 lbf ft).
6.
Close the hood doors. See Figure 15.
7.
Install the Precleaner, with the air duct at-
tached, on the air cleaner.
8.
Open left-hand hood door.
9.
Install and tighten the air duct clamp.
10.
Connect electrical connector to vacuum switch.
11.
Close the hood door.
1.
AIR FILTER HOSE
2.
AIR FILTER HOUSING
3.
VACUUM SWITCH
4.
AIR DUCT CLAMP
5.
AIR DUCT
6.
PRECLEANER
7.
AIR FILTER BRACKETS
8.
HOSE CLAMP
9.
FILTER HOUSING MOUNTING CLAMP
Figure 2. Air Filter Assembly (Tier 3/Stage IIIA)
0100 SRM 1978
Remove and Install
3
Summary of Contents for B238
Page 1: ...FRAME AND MAIN COMPONENTS PART NO 4147656 0100 SRM 1978...
Page 15: ......