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Page Title:
Figure 45. Crankshaft, removal and installation. |
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 TM 5-4320-237-15
(1) Clean tapered roller bearings by im-
(4) Inspect the bearings for distorted
mersing in a container of an ap-
races, worn rollers, and for rough
proved cleaning solvent; blow dry
and binding operation. If either the
with compressed air. Take care not
bearing cups or the rollers are dam-
to spin dry bearings. Dip cleaned
aged, replace both parts.
(5) Inspect the crankshaft for bends,
bearings in light engine oil and wrap
in lint-free paper until they can be
worn or damaged threads, burred
reinstalled.
keyways, worn or scored crankpin
journal, and other damage. C1ean up
(2) Wipe the cork seals with a clean, dry
damaged threads with a thread chas-
cloth.
er. Remove burrs from keyways with
(3) Clean all other parts with an ap-
a fine file or India stone. Refer to
proved cleaning solvent; dry thor-
oughly. T a k e care to
prevent
ances.
scratching bearing journals during
(6) Inspect seals for wear and deteriora-
cleaning.
tion. Replace seals if there is any
doubt of their condition.
(7) I n s p e c t the crankshaft gear for
cracks, for chipped, scored, or brok-
en teeth, and for other damage.
(8) Inspect the bearing plates for cracks,
distortion, and other damage.
(9) Inspect all other parts for cracks,
wear, worn threads, and other dam-
age. Replace all worn and dam-
aged parts.
d. Reassembly. Reassemble the crankshaft
in the reverse of the numerical sequence as
illustrated in figure 46.
e. Installation.
(1) Refer to figure 45 and install the
crankshaft.
Caution: Timing marks on crank-
shaft gear and camshaft gear must
match or engine will not operate.
(2) Install the piston and connecting rod
54
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