TM 10-4320-344-243.8.22 Crankshaft Pulley and Vibration Damper Replacement. Models 609-C and US636HCCD-1.This task covers:3.8.22.1 Removal3 .8 .2 2 . 2 I n s t a l l a t i onINITIALSETUPToolSGeneral Mechanic's AutomotiveTool Kit, Appendix B, SectionIII, Item 1Torque Wrench, Appendix B, SectionI I I ,Item 2Angle-of-Turn Indicator, Appendix B,Section III, Item 3Retainer,Appendix B, Section III,Item 19Material/PartsGrease, Appendix C, Item 13Oil, Appendix C, Item 15Equipment Conditions (Continued)Top Panel Assembly removed, paragraph2.21.4 (609-C).Right Side Panel Assembly removed,paragraph 2.12.6 (609-C).Bulkhead Panel Assembly removed,paragraph 2.12.15 (609-C).V-Belt Guard removed, paragraph 2.21.11(US636HCCD-1).Alternator Belts removed, paragraph2.21.13.General Safety InstructionsRags, Appendix C, Item 20Do not work on equipment that is notsecurely stabilized to prevent rollingEquipment Conditionso r s l i d i n g.Pumping station shut down, TM 10-4320-Do not work on equipment without follow-344-10.ing standard shop safety practices.3.8.22.1 Removal.a.Using retainer, (Figure 3-44,1) hold crankshaft pulley (2) stationary.Pulley mounting tilt is a left-hand threaded bolt.To remove pulley mountingbolt, turn bolt to the clockwise.b.Turn pulley mounting bolt (3) clockwise.Remove pulley mounting bolt (3),flat washer (4), and crankshaft pulley (2).c .Remove eight pulley mounting screws (5), flat washers (6), and pulley (2) fromdamper (7).3.8.22.2 Installation.a.b .c .d .e .f .3-100Position damper (7) on crankshaft pulley (2) and secure with eight flatwashers (6) and pulley mounting screws (5).Measure gap between crankshaft pulley (2) and damper (7).Gap must be 1 inch(25.4 mm) or less.Lightly coat damper shaft of crankshaft pulley (2) and front seal with grease.Align index hole in damper shaft of crankshaft pulley (2) with index pin oncrankshaft gear.Slide crankshaft pulley (2) and damper (7) into position.Lightly coat pulley mounting bolt (3) threads with oil.I n s t a l l b o l t ( 3 ) incrankshaft pulley (2).Using retainer (1), hold crankshaft pulley (2) stationary.NOTE
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