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TM 10-3930-659-34
4-12.
ENGINE ROCKER ARM ASSEMBLY AND PUSHRODS MAINTENANCE.
This Task Covers:
a.
Removal
d. Assembly
b.
Disassembly
e. Installation
c.
Cleaning and Inspection
Initial Setup:
Materials/Parts:
Equipment Conditions:
•
Lubricating oil (Item 37, Appendix B)
•
Engine rocker arm cover and vent tube removed (see
•
Rags (Item 43 Appendix B)
TM 10-3930-659-20).
•
Dry cleaning solvent (Item 47, Appendix B)
Tools/Test Equipment:
•
Marker tags (Item 49, Appendix B)
•
General mechanic's tool kit (Item 71, Appendix E)
References
•
Inside caliper micrometer (Item 8, Appendix E)
•
Outside caliper micrometer (Item 9, Appendix E)
•
TM 10-3930-659-20
•
Vise jaw caps (Item 12, Appendix E)
•
Compressor unit (Item 16, Appendix E)
General Safety Instructions:
•
Soft hammer (item 34, Appendix E)
•
Dry cleaning solvent is flammable and must not be
•
Spring tester (Item 67, Appendix E)
used near open flame. Use only in a well-ventilated
•
Machinist's vise (Item 76, Appendix E)
area.
•
Torque wrench, 0-175 Ib.-ft. (Item 81, Appendix E)
•
Compressed air used for cleaning purposes should
never exceed 30 psi (207 kPa).
a.
REMOVAL
1.
Remove six screws (2), washers (3), and engine rocker arm assembly (1) from cylinder head (5).
CAUTION
Note position of pushrods to aid during installation. Pushrods must be installed in
the same location as removed.
2.
Remove 12 pushrods (4) from cylinder head (5).
4-54
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