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TM 10-3930-638-24&P
3-5. ENGINE MAINTENANCE (cont)
j. Rocker Arm Assembly (cont)
Pull from center bracket (10)
Pull from shafts (12)
Pull from shafts ( 12)
STEP
LOCATION
ITEM
ACTION
REMARKS
REMOVAL
1
Engine cylinder
a. Drilled bolt (1), cap
Loosen and
head
screw (3) and two
remove
washers (2)
b. Rear bracket (4) and
Remove
Support end rocker arm (6 and 7) and
front bracket (5)
springs (8)
c. Three cap screws (9)
Loosen
and washers (2)
d. Rocker arms (6 and
Remove
Pull from front and rear end of shafts
7) and two springs (8)
(12)
e. Rocker arm assembly
Lift from
Grasp ends of shafts (12), push together,
cylinder head
and remove assembly from cylinder head
g. Eight push rods (13)
Remove
Lift from cylinder head
DISASSEMBLY
2
Rocker arm
a. Two shafts (12)
Remove
assembly
b. Rocker arms (6 and
Remove
7) and springs (8)
c. Intermediate brackets
Remove
(11)
CLEANING
CAUTION
Be careful not to scratch push rods or shafts in following step.
3
Shafts (12) and push
Clean
Remove carbon and varnish deposits with
rods (13)
a fine, power driven wire brush
WARNING
Dry cleaning solvent (P-D-680), used to clean parts is toxic and
flammable. Wear protective goggles and gloves and use only in a
well ventilated area. Avoid contact with skin, eyes, and clothes
and don’t breathe vapors. Do not use near open flame or
excessive heat and don’t smoke when using it. Failure to do so
could cause serious injury. If you become dizzy while using
cleaning solvent, get fresh air immediately, and get medical
attention. If contact with skin or clothes is made, flush with large
amounts of water. If contact with eyes is made, wash eyes with
water immediately, and obtain medical aid immediately.
Change 1 3-63
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