TM 10-4320-344-242.21.40 Cowling Assembly Maintenance, Models 609-C and US636HCCD-1.This task covers:2.21.40.1 Disassembly2.21.40.3 Assembly2 .21 .4 0 . 2 R e p a irINITIAL SETUPToolsGeneral Mechanic’s AutomotiveTool Kit, Appendix B, SectionIII, Item 1Material/PartsLock Washers (TM 10-4320-344-24P)Equipment ConditionsPumping station shut down, TM 10-4320-344-10.Bulkhead Panel Assembly removed,paragraph 2.12.15.Battery disconnected, paragraph 2.15.3(609-C) and paragraph 2.15.4(US636HCCD-1).Fuel Leakoff Return Line removed,paragraph 2.21.7.Fuel Injection Lines removed, paragraph2 .21 .7.V-Belt Guard removed, paragraph 2.21.11(US636HCCD-1).EquipmentConditions(Continued)Oil Inlet Tube Assembly removed,paragraph 2.21.23.Oil Bypass Line removed, paragraph2.21.25 (US636HCCD-1).Oil Cooler removed, paragraph 2.21.29(609-C) or 2.21.30 (US636HCCD-1).Oil Breather Assembly removed, paragraph2.21.31 (US636HCCD-1).Air Outlet Frame removed, paragraph2.21.35 (609-C).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 with batteryconnected.Electrocution hazard ispresent if battery is connected.Do not work on equipment without follow-ing standard shop safety practices.This procedure applies to Model US636HCCD-1.The procedure for Model 609-C iss i m i l a r.2.21.40.1 Disassembly.a .Unlatch, open and remove upper air cowling (Figure 2-155, 1).b .Remove lower air cowling (2) as follows:(1) Remove five screws (3) and flat washers (4).(2) Remove nut (5), lock washer (6), flat washer (7), bolt (8), and lower aircowling (2) .Discard lock washer (6).c .Remove three bolts (9), lock washers (10), flat washers (11), and rear stayp l a t e ( 1 2 ) .Discard lock washers (10).d.Remove cowling guide rail (13) as follows:(1) Remove twelve screws (14) and lock washers (15).Discard lock washers (15).(2) Remove nut (16),lock washer (17), two flat washers (18), and bolt (19), andcowling guide rail (13) from front stay plate (20).2-350
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