TM 9-2815-225-34&P
3-41. ROCKER LEVERS AND HOUSING REPAIR (Contd)
LOCATION/ITEM
ACTION
REMARKS
c. Inspection (Contd)
CAUTION
To avoid damaging engine, do the following:
On injector and exhaust rocker levers, install bushing so oil holes to crosshead nose or
injector link and adjusting screw are open for oil flow.
On intake valve rocker levers with oil drilling to crosshead nose end, install bushing so
nose hole is closed and slot hole is in line with adjusting screw oil hole.
Do not cut a bore in steel bushings.
(2) Using rocker lever block and
mandrel set (25) and arbor press,
press new bushings (6) or (9) into
rocker levers (5), (8), (11), (13),
or (15).
g. Check rocker lever-to-
Replace intake or exhaust rocker
crosshead contact surface on
lever assembly (2), (12), (14), or
intake or exhaust rocker levers
(16) if damaged or worn.
(5), (11), (13), or (15).
NOTE
Repeat step 13 for each adjusting screw.
13.
Adjusting screws (1) or (4)
a. Using a 0.250 in. (6.350 mm)
Discard adjusting screw if ball end
radius gauge, check ball end.
is out-of-round or flat at bottom.
b. Check thread condition.
Check carefully for thread distortion
at assembly position of
adjusting screw nut (3). Discard
adjusting screws (1) or (4) if
threads are damaged, or if it does
not move freely in rocker levers
(5), (8), (11), (13), or (15).
14.
Rocker lever shaft (20)
a. Inspect for scoring or excessive
Discard if damaged, worn, or if it
wear.
has ridges due to action of rocker
levers (5), (8), (11), (13), or (15).
b. Using suitable micrometer,
Discard if outside diameter is not
measure outside diameter
within limits shown below:
of shaft (20).
New Minimum ............................................................ 1.1230 in. (28.524 mm)
New Maximum ........................................................... 1.1240 in. (28.550 mm)
Wear Limit ................................................................ 1.1220 in. (28.499 mm)
3-214
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