TM 5-2815-241-34&P
CAM FOLLOWER ASSEMBLY - CONTINUED
ACTION
LOCATION
ITEM
REMARKS
INSPECTION - CONTINUED
10. Cam follower
lever (1)
Valve cam follower
roller (2)
a.
Inspect for breaks, cracks, or out-of-
round condition.
If broken, cracked, or out-of-round,
replace.
b.
Using dial bore gage, measure inside
diameter at several points for wear.
If larger than 0.503 Inch (12.83
mm), replace.
New valve cam follower roller inside
diameter should be 0.5005 to 0.5015
inch (12.713 to 12.738 mm).
c.
Using a 1- to 2-inch micrometer,
measure outside diameter at several
points.
NOTE
If smaller than 1.248 inches (31.71
mm), replace.
New valve cam follower roller outside
diameter should be 1.2490 to 1.2500
inches (31.72 to 31.75 mm).
Steps 11 to 14 are typical for all cam follower rollers, bushings, and levers.
11.
12.
13.
Roller pin bore (4)
Valve cam follower
roller (2)
a.
Using 0- to 1-inch micrometer, check
inside and outside diameters for
roundness.
If more than 0.002 inch (0.05 mm),
out of round, replace.
b.
Using 0- to 1-inch micrometer, meas-
ure ends of roller for squareness to
inside diameter and parallelism to each
other.
If more than 0.004 inch (0.10 mm),
replace.
Cam follower
bushing (3)
Using dial bore gage, measure Inside
diameter.
If more than 0.752 inch (19.10 mm),
using arbor press and ST-249 man-
drel and block, remove and discard.
Using dial bore gage, measure inside diam-
eter of roller pin bore.
If more than 0.4997 inch (12.892
mm), replace.
2-258
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