FUEL SYSTEM 345
High-pressure Hose Assembly – Generation 1
Figure 536 Removal of high-pressure oil hos
e
assembly
1. Remove the high-pressure oil hose assemb
ly
between the high-pressure pump assembl
yand
cylinder head.
2. Remove and discard O-ring at each fitt
ing.
3. If necessary, remove high-pressure
hose fitting
located at cylinder head.
High-pressure Hose Assembly wi
th 70 and 90
Degree Elb ow s – Gener atio n 2
1. Remove the conduit cover from th
e high-pressure
hose assembly.
Figure 537 High-pressure hose assembly
connections (typical)
1. High-pressure oil hose
2. High-pressure oil hose nut (2)
3. Elbow jam nut (2)
4. 70 degree elbow
5. Swivel nut (2)
6. 90 degree elbow
2. Remove high-pressure oil hose swivel nuts from
70 and 90 degree elbows. Use one wrench to
hold the high-pressure oil hose nut in place while
loosening its corresponding swivel nut using
another wrench. Remove the high-pressure
hose.
Figure 538 High-pressur
e oil elbow (typical)
1. O-ring seal (#14) (2)
2. Back-up ring
3. Elbow jam nut
4. Elbow
EGES-265-2
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Follow all warnings, cautions, and notes.
© 2009 Navistar, Inc.
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