TM 10-4320-344-244.4.20 Crankshaft Assembly Maintenance, Models 609-C and US636HCCD-1.This task covers:4.4.20.1 Removal4 .4 .2 0 . 3 I n s t a l l a t i on4 .4 .2 0 . 2 R e p a i rINITIALSETUPToolsGeneral Mechanic’s Automotive Tool Kit,Appendix B, Section III, Item 1Goggles,Industrial, Appendix B,Section III, Item 2Gun, Air Blow, Appendix B, Section III,Item 2Angle-of-Turn Indicator, Appendix B,Section III, Item 3Engine Sling, Appendix B, Section III,Item 3Height Gauge, Appendix B, Section III,Item 3Micrometer,Appendix B, Section III,Item 3Material/PartsTube Brush, Appendix C, Item 6Gloves, Appendix C, Item 11Grease (Engine Assembly), Appendix C,Item 13Oil, Appendix C, Item 15Material/Parts(Continued)Rags, Appendix C, Item 20Solvent, Dry Cleaning, Appendix C,Item 26Tags, Appendix C, Item 31Bearings (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 ConditionsOil pump Assembly and Oil Pipe removed,paragraph 4.4.7.Crankcase Rear Cover removed, paragraph4 .4 .13.Piston and Connecting Rod Assembliesremoved, paragraph 4.4.15.General Safety InstructionsDo not work on equipment that is notsecurely stabilized to prevent rollingo 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).Discardbearings (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) anddowel (14).4-71
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