TM 10-4320-344-24
4.4.20 Crankshaft Assembly Maintenance, Models 609-C and US636HCCD-1.
This task covers:
4.4.20.1 Removal
4 .
4 .2 0 . 3 I n s t a l l a t i on
4 .
4 .2 0 . 2 R e p a i r
INITIAL SETUP
Tools
General Mechanic’s Automotive Tool Kit,
Appendix B, Section III, Item 1
Goggles,
Industrial, Appendix B,
Section III, Item 2
Gun, Air Blow, Appendix B, Section III,
Item 2
Angle-of-Turn Indicator, Appendix B,
Section III, Item 3
Engine Sling, Appendix B, Section III,
Item 3
Height Gauge, Appendix B, Section III,
Item 3
Micrometer,
Appendix B, Section III,
Item 3
Material/Parts
Tube Brush, Appendix C, Item 6
Gloves, Appendix C, Item 11
Grease (Engine Assembly), Appendix C,
Item 13
Oil, Appendix C, Item 15
Material/Parts (Continued)
Rags, Appendix C, Item 20
Solvent, Dry Cleaning, Appendix C,
Item 26
Tags, Appendix C, Item 31
Bearings (TM 10-4320-344-24P)
Crankshaft Gear (TM 10-4320-344-24P)
Dowel (TM 10-4320-344-24P)
Spring Pin (TM 10-4320-344-24P)
Stop Rings (TM 10-4320-344-24P)
Equipment Conditions
Oil pump Assembly and Oil Pipe removed,
paragraph 4.4.7.
Crankcase Rear Cover removed, paragraph
4 .
4 .
1
3.
Piston and Connecting Rod Assemblies
removed, paragraph 4.4.15.
General Safety Instructions
Do not work on equipment that is not
securely stabilized to prevent rolling
o r s l i d i n g.
Do not work on equipment without follow-
ing standard shop safety practices.
4.4.20.1 Removal.
a .
b.
c .
d .
e .
f .
g .
h .
i .
Tag all crankshaft bearing cap mounting bolts.
Remove fourteen bolts (Figure 4-36, 1) and flat washers (2).
Tag and remove seven bearing caps (3) and lower bearings (4).
Discard
bearings (4).
Using sling, remove crankshaft assembly (5).
Remove two stop rings (6 and 7).
Discard stop rings (6 and 7)
Tag and remove fourteen dowels (8).
Remove and discard seven upper bearings (9).
Remove and discard spring pin (10).
Remove six plugs (11) and flat washers (12).
Remove crankshaft gear (13) and dowel (14).
Discard crankshaft gear (13) and
dowel (14).
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