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TM 5-1940-277-20
TM 1940-20/2
NOTE
Look at rocker arm assembly (1). Note the following:
a) the assembly is spring loaded.
b) the rocker arms (7) are not alike.
c) the center rocker arm support (9) is solid and the intermediate rocker arm sup-
ports (6) have either a bolt (5) or a hole for a bolt.
d) a positioning bolt (5) is in the intermediate rocker arm support (6) to each side of the
center rocker arm support (9).
e) the end rocker arm supports (2) are not like the other supports.
Number tags "1". through "12".
3.
Loosen all valve adjustment screws (12) and tie a tag to each rocker arm starting with "1" on the rocker arm nearest
4.
the header tank.
NOTE
Rocker arms must go back on the shaft in the same position they came from.
Using 9/16 inch socket remove bolts (3) and lockwashers (4) from center rocker arm support (9) and intermediate
5.
arm supports (6).
NOTE
One person holds the ends of the rocker arm assembly (1) together while the other per-
son removes the final bolts. This will prevent the springs from pushing the assembly
apart when the final bolts are removed.
6.
Using 9/16 inch socket remove bolts (3) and lockwashers (4) from the end rocker arm supports (2).
7.
Holding the ends together take assembly to workbench.
Using 7/16 inch socket loosen bolts (5) in two intermediate rocker arm supports.
8.
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