TM 9-2815-250-24&P
3-7.
CRANKSHAFT AND BEARINGS REPAIR.
This Task Covers:
a.
Removal
b.
Inspection
c.
Installation
Initial Setup:
Tools/Test Equipment:
Materials/Parts:
Crank gear driver (Item 4, Appendix G)
Lubricating oil (Item 6, Appendix D)
Crank gear puller (Item 5, Appendix G)
Sealing compound (Item 12, Appendix D)
General mechanic's tool kit (Item 14,
Crankcase gasket set (Item 1, Appendix F)
Appendix G)
Sleeve bearing (3) (Item 34, Appendix F)
Relief valve puller (Item 23, Appendix G)
Screwdriver attachment, 8 mm (Item 25,
Equipment Conditions:
Appendix G)
Crankcase disassembled (para 3-6).
Socket wrench set, 3/8-inch drive (Item 27,
Camshaft removed (para 3-11).
Appendix G)
a.
REMOVAL
1.
Remove seal (3) from auxiliary drive end of
crankshaft (2). Discard seal.
CAUTION
To prevent warping, crankshaft must
be placed standing up in flywheel.
2.
Remove crankshaft (2) from lower crankcase
(5).
3.
Remove three sleeve bearing halves (4) from
three
upper
crank
supports
(9)
(upper
crankcase), and remove three sleeve bearing
halves (4) from three lower crank supports (6)
(lower crankcase). Discard sleeve bearing
halves.
4.
Remove flow control valve (8) from lower
crankcase (5).
5.
Using crank gear puller, remove crank gear (1)
from crankshaft (2).
6.
Using relief valve puller, remove relief valve (7)
from lower crankcase (5).
3-26
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