TM 10-4320-344-24
2.21.9 Fuel Injection Nozzle Maintenance. Models 609-C and US636HCCD-I.
This task covers:
2.21.9.1 Removal
2.21.9.3 Installation
2.21.9.2 Test
INITIAL SETUP
Tools
Material/parts (Continued)
General Mechanics Automotive
Diesel Fuel, Appendix C, Item 10
Tool Kit, Appendix B, Section III,
Rags, Appendix C, Item 20
Item 1
Tags, Appendix C, Item 31
Sealing Ring, TM 10-4320-344-24p
Goggles, Appendix B, Section III,
Item 2
Equipment Conditions
Gun, Air Blow, Appendix B, Item 2
Fuel Leakoff Manifold Assembly and
Fuel Injection Lines disconnected and
Torque Wrench, Appendix B, Section
capped, paragraph 2.21.7.
III, Item 2
General Safetv Instructions
Nozzle Puller, Appendix B, Section
III, Item 6
Diesel fuel is flammable.
Keep sparks,
cigarettes, and open flame away from fuel
Pulling Device, Appendix B, Section
system components.
III, Item 7
Do not work on equipment without
Gasket Puller, Appendix B, Section
following standard shop safety
III, Item 8
precautions.
Nozzle Tester, Appendix B, Section
III, Item 9
2.21.9.1 Removal.
a.
Remove six nuts (Figure 2-122,
1) and injection nozzle yokes (2).
b .
Tag and remove six
c .
Remove six sealing
( 4 ) .
fuel injection nozzles (3).
rings (4) from cylinder head (5).
Discard sealing rings
2.21.9.2 Testing.
Diesel fuel is flammable. Keep sparks, cigeretts, and open flame away from
fuel system components while working on engine.
To prevent the possibility of embedding foreign objects in the eyes, safety
glasses must be worn when using compressed air.
Failure to obey these warnings may result in personal injury.
a .
Clean fuel injection nozzle (3) in clean diesel fuel and dry thoroughly with
filtered, compressed dry air.
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