TM 10-4320-344-242.21.19 V-Belt Contact Switch Maintenance, Models 609-C and US636HCCD-1.This task covers:2.21.19.1 Testing2 .21 .1 9 . 3 R e p a ir2.21.19.2 Removal2.21.19.4 InstallationINITIALSETUPToolsGeneral Mechanic’s AutomotiveTool Kit, Appendix B, SectionI I I , Item 1Multimeter, Appendix B, Section III,Item 2Materials/PartsLoop Clamp (TM 10-4320-303-24P)Equipment ConditionsPumping station shut down, TM 10-4320-344-10.Battery disconnected, paragraph2.15.3 (609-C) and paragraph 2.15.4(US636HCCD-1).Equipment Conditions (Continued)V-Belt Guard and Mounting Stud removed,paragraph 2.21.11 (US636HCCD-1).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 is pre-sent if battery is connected.Do not work on equipment without follow-ing standard shop safety practices.2.21.19.1 Testing.To prevent electrical shock, use caution when performing this test.Ensure V-belts are in proper position.a.Disconnect connector (Figure 2-134, 1) from V-belt contact switch (2).Pin numbers areb .Test resistance from pin 1 to pini n f i n i t y .c .Test resistance from pin 2 to pinlocated in connector.2 and pin 1 to pin 4.Correct reading is4.Correct reading is 0.d .Push in and hold contact button (3) on V-belt contact switch (2).e .Test resistance from pin 2 to pin 1 and pin 2 to pin 4.Correct reading is 0.f .Test resistance from pin 1 to pin 4.Correct reading is infinity.g .Release contact button (3).h.Replace defective V-belt contact switch (2).i .Connect connector (1) to V-belt contact switch (2).2-305NOTENOTE
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
