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 TM 55-1905-220-14-5
3-90.1. VALVE AND INJECTOR OPERATING MECHANISM - MAINTENANCE INSTRUCTIONS (Cont).
LOCATION
ITEM
ACTION
REMARKS
INSTALLATION
12.
Rocker
shaft
assembly
NOTE
The injector rocker arm (center arm of the group) is slightly different from the
exhaust valve rocker arms; the boss for the shaft on the left and right-hand valve
rocker arms is longer on one side. The extended boss of each valve rocker arm
must face toward the injector rocker arm.
a. Rocker
Thread each rocker arm
Provide suffi-
arm (7),
on its push rod until the
cient initial
and push
end of the push rod is
clearance be-
rod (6)
flush with or above the
tween the ex-
inner side of the clevis
haust valve and
yoke.
the piston
when the crank-
shaft is turned
during the
valve clearance
adjustment pro-
cedure.
b. Rocker
Assemble.
Apply clean en-
arm
gine oil to the
shaft
rocker arm
(4) and
shaft and slide
rocker
the shaft
arm (7)
through the
rocker arms.
c.
Bracket
Assemble on shaft.
Finished face
(3)
of bracket
next to rocker
arm.
d. Bracket
Install.
Torque to 90-
bolts
100 ft-lb (122-
(2)
136 Nm) torque.
NOTE
Bracket bolts go through the bracket and the shaft.
3-1514
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