TM 10-4320-344-24
2.21.50 Rocker Arm (Valve) Adjustment, Models 609-C and US636HCCD-1.
This task covers:
Valve Adjustment Only
INITIAL SETUP
Tools
Equipment Conditions (Continued)
General Mechanic’s Automotive
Cylinder Head Covers removed, paragraph
Tool Kit, Appendix B, Section
2.21.48.
III, Item 1
General Safety Instructions
Equipment Conditions
Do not work on equipment that is not
Pumping station shut down, TM 10-4320-
344-10.
securely stabilized to prevent rolling
o r s l i d i n g.
V-Belt Guard removed, paragraph 2.21.11
Do not work on equipment without follow-
(US636HCCD-1).
ing standard shop safety practices.
Figure 2-165.
Valve Adjustment, Models 609-C and US636HCCD-I.
a.
Turn crankshaft in direction of rotation until valves of number one cylinder
overlap (pushrods move freely).
2-370
