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TM 10-3930-643-34
BRAKE TROUBLESHOOTING AND MAINTENANCE.
8-14. Air Compressor. (Sheet 8 of 13)
CLEANING/INSPECTION
NOTE
If necessary, grind
bearing journals to
undersize dimension
connecting rod
next lower
and
replace
bearings
with
appropriate
undersize bearings.
37.
Inspect threads and keyway of
crankshaft (38).
Replace if keyway
is chipped or misshaped or threads
are stripped.
38.
Using a micrometer, measure cylinder
diameter of cylinder block (15).
Cylinder diameter should be 1.995 to
2.000 inches.
39.
Inspect cylinder
block (15) for
cracks, scoring, pitting or
damage.
If severe scoring or pitting of
cylinder walls is evident, cylinders
may be bored to 2.015 to 2.020 inches
and pistons (27) replaced with
oversize pistons.
40.
Inspect piston (27) for cracks.
Light scoring or abrasion marks can
be removed with a stone.
41.
Install ring sets (22 and 23).
42.
Using a feeler gage, measure
clearance of
rings
in grooves.
Clearance should be 0.005 to 0.0025
inches.
Go to sheet 9
8-69
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