TM 10-4610-215-24TM 08580A-24/2(15) install wire (4) to overload relay (3) and stationary contact block assembly (5).(16) Install wires (1) to operating coil (2) and overload relay (3).h. Test. (Refer to Schematic, Figure 1-12)WARNINGELECTRICAL HIGH VOLTAGEElectrical high voltage can cause serious injury or death. Sometests performed in testing require power to be connected. Alwaystake proper measures to ensure personal safety.(1) Using the multimeter, check between upper and lower contacts of the stationary contact blockassembly. It should read open.(2) Check across contacts of overload relay. It should indicate a short. If reading is still open, replaceoverload relay.(3)(4)condition.(5)(6)(7)(8)Manually depress movable contact assembly into stationary contact assembly and hold in position.Check between upper and lower contacts of stationary contact assembly. It should indicate a shortRelease movable contact assembly.Apply 110 Vat, 60 Hz across the terminals of the operating coil.Movable contacts should actuate and be held in position in stationary contact block assembly.Remove power from operating coil.3–17. MOTOR STARTER, 20 HP, 10 HP, AND 2 HP.a. General. The motor starters protect the electric motors from overheating, shorts! and overloading overloadrelays are part of the motor starters and will remove power from the pump motors in case of a malfunction. Thisparagraph covers the disassembly, cleaning, inspection, repair, reassembly, and testing of the three larger motorstarters.b. Removal. If necessary, remove the motor starter from the junction box in accordance with paragraph 2-52.c. Disassemble. (Figure 3–13) (Refer to Schematic, Figure 1–12)3-62
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