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 TM 55-1905-223-24-3
NOTE
o
If excessive wear is found on the push rod ball end, inspect the cam follower sockets.
o
If excessive wear is found on the socket end, inspect the adjusting screws.
c.
Remove the bushing in the cam follower if the inside diameter of the bushing is more than 0.752 inch
(19.10 mm). Use the lever bushing block and mandrel to remove the bushing.
WARNING
High pressure compressed air tanks, piping systems, and air operated devices
possess potential for serious injury to eyes and exposed areas of skin due to
escaping air pressure.
d. Use compressed air to clean the oil passages.
e. Use the bushing block and mandrel to install a new bushing in the lever. Ensure the oil hole in the
bushing is aligned with the oil hole in the lever.
f.
Cut a chamfer on each end of the bushing. Use a drill press at a slow speed ad a chamfer tool that
n
cuts a 60 degree angle chamfer.
g. Put soap into the oil hole in the bushing. This will prevent metal particles from entering the oil hole.
h. Cut the bore in the bushing to measure 0.7501 to 0.7511 inch (19.053 to 19.978 mm).
i.
Use the plug gauge to check the bore.
WARNING
High pressure compressed air tanks, piping systems, and air operated devices
possess potential for serious injury to eyes and exposed areas of skin due to
escaping air pressure.
j.
Use compressed air to remove the soap from the oil holes. Wash the lever in cleaning solvent and dry
with compressed air.
k.
If the cam follower insert (7, Figure 4-22) in cam follower lever was removed, install new insert.
CAUTION
If a new cam follower insert is installed in the lever, a new push rod must also be used.
4-61
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