Service manual

Cummins Engine
8B-15
14. Bleed the fuel system in accordance with the
instructions in
Section 2 General Information,
Specifications, and Maintenance Instructions
.
8B.7.8 After Fuel System Service
1. Drain and flush the fuel tank if it was contaminated.
2. Vent air from the fuel system (see
Section 2 General
Information, Specifications, and Maintenance
Instructions
, paragraph 2.12.7 D).
3. Fill the fuel tank with fresh, clean diesel fuel as
required.
8B.8 CUMMINS ENGINE EXHAUST
SYSTEM
The exhaust system (Fig. 8B–10) is supported by the
engine and the vehicle frame to help minimize the trans-
fer of noise and vibration into the operator’s cab. The tail
pipe directs exhaust fumes to the right side of the vehicle,
away from the cab.
Annoying rattles and noise vibrations in the exhaust sys-
tem are usually caused by misalignment of parts. When
aligning the system, leave all capscrews and nuts slightly
loose until all parts are properly aligned, then tighten all
fasteners working from the front of the system to the rear.
When replacing the muffler, also replace the tail pipe.
Before assembling components, use exhaust system
sealer at all slip joint connections.
Figure 8B–10. Cummins engine exhaust system.
When installing exhaust system components, allow suffi-
cient clearance between the components and other vehi-
cle pipes, hoses and wiring that could be adversely
affected by excessive heat.
When installing an exhaust system, provide for parts
expansion when the system is hot.
Whenever performing service on the vehicle, check the
condition of the exhaust system. Check the entire
exhaust system for broken, damaged, missing or mispo-
sitioned parts, open seams, holes, loose connections
and other deterioration which could permit exhaust
fumes to seep into the operators cab. Correct any dam-
aged areas immediately.
WARNING: Exhaust fumes contain carbon
monoxide, a colorless, odorless gas which is
fatal when inhaled in a confined area. Avoid
breathing exhaust fumes and prevent engine
operation from becoming a cause of toxic emis-
sions.
Exhaust system components reach high tem-
peratures and can cause severe burns. DO
NOT come into contact with hot exhaust sys-
tem components.
1. V-band clamp
2. Exhaust pipe
3. Heavy-duty T-bolt
band clamp
4. Exhaust bellows
5. Exhaust pipe
6. Heavy-duty muffler
clamp, 2-1/2"
7. Exhaust muffler
8. Exhaust tail pipe
1
2
3
4
3
57
6
6
6
PS0130
To
engine
exhaust
Secure to
band clamp
on vehicle
8
Model 3606 • Origin 10/99