TM 10-4320-344-243.6.7 ImpellerMaintenanceThis task covers:3.6.7.1 Disassembly3 .6 . 7 . 3 A s s e m b ly3.6.7.2 RepairINITIALSETUPToolsMaterial/Parts ( C o n t i n u e d)General Mechanic’s AutomotiveAntisieze Sealing Compound, Appendix C,Tool Kit, Appendix B, SectionItem 22III, Item 1Solvent, Dry Cleaning, Appendix C,Item 26Goggles, Industrial, Appendix B,Two steel bars, Appendix C, Item 27Section III, Item 2Two steel rods, Appendix C, Item 28Seal Assembly (TM 10-4320-344-24P)Torque Wrench, Appendix B, Section III,Item 3 (609-A and 609-C)Equipment ConditionsVernier Caliper, Appendix B,Intermediate Bracket Assembly removed,Section III, Item 3paragraph 3.6.2.Material/PartsGeneral Safety InstructionsGloves, Appendix C, Item 11Do not work on equipment withoutLubricant,Appendix C, Item 14following standard shop safetyRags, Appendix C, Item 20precautions.3.6.7.1 Removal.This procedure applies to Models 609-A and 609-C.The procedure forModel US636HCCD-1 is similar.Steps a and b are applicable to Model 609-A.When removing Model 609-Cimpeller, insert two 1 inch (25.4 mm) steel rods through mounting holes offlexible coupling assembly.a .b .c .d .e.Remove and retain two cap screws (Figure 3-8, 1) and lock washers (2),diagonally opposite each other, from flexible coupling assembly (3).Measure thread diameter of cap screw (1) andand same thread diameter as cap screw (1).Install two 3 inch (76.2 mm) long screws (4)coupling assembly (3).Place steel bar (5), 1 1/4 inch (31.75 mm) x(355.6 mm) between screws (4) and remove capPlace second steel bar (8) into impeller (9)obtain two screws 3 inches longinto threaded holes of flexible3/8 inch (9.525 mm) x 14 inchesscrew (6) and sleeve spacer (7).between vanes as shown.3-23
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