TM 10-4320-344-242.23.9 Wheel Cylinder and Brake Shoes Replacement.This task covers:2.23.9.1 Disassembly2.23.9.3 Assembly2 .23 . 9 . 2 R e p a ir2.23.9.4 AdjustmentINITIALSETUPToolsGeneral Mechanic’s AutomotiveTool Kit, Appendix B, SectionI I I ,Item 1Trestle, Appendix B, Section III, Item 2Material/PartsBrake Fluid, Appendix C, Item 4Equipment ConditionsPumping station shut down, TM 10-4320-344-10.Equipment ConditionsHub and Wheel Bearing2 .23 .2.(Continued)removed, paragraphBrake Lines disconnected from backingplate, paragraph 2.23.6.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.This procedure applies to Model 609-A.The procedures for Models 609-c andUS636HCCD-1 are similar.2.23.9.1 Disassembly.Do not work on equipment that is not securely stabilized to prevent rollingor sliding. Ensure both wheels of equipment have chocks that are secure.Failure to obey this warning may result in serious personal injury.a.Remove horseshoe clamp (Figure 2-176,1) and flat washer (2) from mounting pinof handbrake actuator (3).b.Remove two springs (4) and washer (5) from anchor pin (6) and brake shoes (7and 8).c .Remove four holdd.Remove adjustinge .Remove two brakef .Remove handbrakedown caps (9), two springs (10) and two hold down pinsscrew (12) and pullback spring (13).shoes (7 and 8) and hand brake actuator arm (14) .actuator (3) from secondary brake shoe (7) and remove( 1 1 ).handbrake cable (15) from handbrake actuate; (3).g .Remove handbrake cable (15) and cable clamp (16) from backing plate (17).h.Remove spring (18) from primary brake shoe (8).i .Remove two bolts (19) and wheel cylinder (20) from backing plate (17).j .Remove five nuts (21), bolts (22), and backing plate (17) from axle (23).2.23.9.2 Repair.a.Inspect all components and mounting hardware for damage.2-397
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