TM 10-4320-344-24
3.8.17 Rocker Ann Assembly Maintenance, Model 609-A.
This task covers:
3 .
8 .1 7 . 1 R e m o v al
3.8.17.4
Assembly
3.8.17.2 Disassembly
3 .
8 .1 7 . 5 I n s t a l l a t i on
3 .
8 .1 7 . 3 R e p a ir
INITIAL SETUP
Tools
Material/Parts (Continued)
General Mechanic’s Automotive
Gloves, Appendix C, Item 11
Tool Kit, Appendix B, Section
Oil, Appendix C, Item 15
III, Item 1
Rags, Appendix C, Item 20
Tags, Appendix C, Item 31
Goggles,
Industrial, Appendix B,
Wire, Appendix C, Item 36
Section III, Item 2
Equipment Conditions
Gun, Air Blow, Appendix B, Section
III, Item 2
Cylinder Head Cover removed, paragraph
2.21.47.
Torque Wrench, Appendix B, Section
III, Item 2
General Safety Instructions
Inside Micrometer, Appendix B,
Do not work on equipment that is not
Section III, Item 3
securely stabilized to prevent rolling
o r s l i d i n g.
Vernier Calipers, Appendix B, section
III, Item 3
To prevent burns do not work on hot
engine components.
Allow engine to cool.
Material/Parts
Do not work on equipment without follow-
Solvent, Dry Cleaning, Appendix C,
Item 26
ing standard shop safety practices.
3.8.17.1 Removal.
To prevent burns do not work on hot engine components.
Allow engine to cool.
Failure to obey this warning may result in serious personal injury.
a.
Tie a wire between number 1 rocker arm (Figure 3-35,
1) and number 12 rocker
arm (2).
Ensure wire is tied tightly enough to maintain tension on spacing
springs when rocker arm assembly (3) is removed.
When removing mounting nuts on rocker arm assembly, start at center nut and
work outward.
T O prevent accidental disassembly, loosen each nut a few turns
at a time so that tension on valve springs is released gradually.
b.
Remove seven nuts (4) and flat washers (5) that secure rocker arm assembly (3)
to cylinder head (6).
c .
Lift rocker arm assembly (3) from cylinder head (6).
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