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TM 5-4210-229-14&P
6-5. ROCKER ARM, SHAFT AND PUSH ROD MAINTENANCE
This task covers:
a. Removal
b. Inspection
c. Installation
INITIAL SET-UP
Tools
Equipment Condition
General Mechanics Tool Kit
Para.
Condition Description
4-90
Valve Cover Removed
4-77
Injection Nozzles Removed
5-11
Engine Removed
Materials/Parts
Rocker Arm (688999C91)
Shaft (675660C92)
Push Rod (675621C1)
General Safety Instructions
Engine OFF.
Transmission in (N) neutral.
Parking brake set.
REMOVAL
a.
Remove bolts (1) securing rocker lever assembly
to cylinder head. Remove rocker arms as an
assembly.
b.
Remove snaprings (2) from the grooves at each
end of the shaft (3).
c.
Slide rocker arm (4), support bracket (5), and
another rocker arm (6) off shaft (3) from each end.
d.
Slide spring (7) off shaft (3).
e.
Repeat steps c and d working from each end of
the shaft (3) until shaft (3) is bare.
f. Remove push rods (8).
INSPECTION
a.
Check rocker arms for cracks or surface imper-
fections. Check for worn shaft bore diameter.
b.
Check shaft for pitting, scoring, nicking, chip-
ping, looseness, or other damage.
c.
Check pushrods for cracks, damage, or distortion.
d.
Inspect all attaching hardware for cracked or
damaged threads.
6-3
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