TM 10-4320-344-242.15.9 Limit Switch Assembly Maintenance. Model 509-A.This task covers:2.15.9.1 Removal2 .15 . 9 . 3 I n s t a l l a t i on2 .15 . 9 . 2 R e p a irINITIALSETUPToolsGeneral Mechanic’s AutomotiveTool Kit, Appendix B, SectionIII, Item 1Material/PartsStrap, Electrical Tiedown, Appendix C,Item 29Lock Washers (TM 10-4320-344-24P)Equipment ConditionsPumping station shut down, TM10-4320-344-10.Battery disconnected, paragraph2 .15 .2 .EquipmentConditions(Continued)Control Panel Cover Assembly removed,paragraph 2.16.1.Power Control Cable Assembly disconnected,paragraph 2.15.8.General Safety InstructionsTo prevent rolling or sliding, do not workon equipment that is not securelys t a b i l i z e d .Do not work on equipment with batteryconnected.Electrocution hazard is presentif battery is connected.Do not work on equipment without followingstandard shop safety precautions.2.15.9.1 Removal.a .b .c .d.e.f .Do not work on equipment with battery connected.Electrocution hazard ispresent if battery is connected.Failure to obey this warning may result indeath or serious personal injury.Remove electrical tiedown straps (Figure 2-48,1) from plastic sheathing (2)around wiring harness (3) and remove plastic sheathing (2) from wiringharness (3).Remove electrical tiedown straps (4) from wiring harness (3).Remove and retain nut (5), and remove lock washer (6) and limit switch wire(7) from start alarm relay (8). Discard lock washer (6).Remove and retain screw (9) and remove lock washer (10), and limit switchassembly wire (11) from mode switch (12). Discard lock washer (10) .Remove two nuts (13),four lock washers (14 and 15), bolts (16), and removelimit switch mounting plate (17).Remove two nuts (18), lock washerslimit switch mounting plate (17).2.15.9.2 Repair.a .Inspect limit switch assembly (20)damage.Discard lock washers (14 and 15).(19), and limit switch assembly (20) fromDiscard lock washers (19).for cracks, holes, missing components, orb .Inspect limit switch wires (7 and 11) for missing terminals, burns or damagei n s u l a t i o n.2-131
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