49–02 CAT CGI Bellows
Replacement
On vehicles with CAT EPA07 compliant engines, re-
place the CGI bellows at the M3 maintenance inter-
val to prevent a later failure.
NOTICE
A leak in the CGI piping, including the bellows,
will allow unfiltered air and contaminants into the
engine intake, and can cause serious engine
damage.
1.
Park the vehicle, set the parking brake, chock
the wheels.
2.
Open the hood.
3.
Remove the right side inner fender/splash shield
as needed.
4.
Remove the CGI piping between the engine and
aftertreatment device (ATD).
See
Fig. 5
.
5.
On the workbench, remove the CGI bellows from
the exhaust piping. Do not damage the piping.
NOTE: The following step, and its substeps, is
to be done without the bellows installed. This
will align the pipes so that the bellows can be
installed correctly.
6.
Install the CGI piping (without CGI bellows) and
align piping.
6.1
Attach the aft CGI pipe to the ATD.
6.2
Attach the forward CGI pipe to the en-
gine.
f490024a
1
2
3
06/01/93
4
1.
Flex Hose
2.
V-Band Coupling
3.
Exhaust Pipe
4.
Turbocharger Exhaust
Outlet
Fig. 6, V-Band Coupling and Flex Hose
08/25/95
f490127
1
2
3
1.
Exhaust Pipe
2.
Exhaust Elbow Isolator
3.
Mounting Nut
Fig. 7, Exhaust Elbow Isolator
f490025a
05/28/93
Fig. 8, Donaldson Sealclamp Wide-Band Exhaust
Clamp
Exhaust
49
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