TM5-6115-593-34 NAVFAC P-8-631-34 TO-35C2-3-463-2 LEGEND FOR FIGURE 15-9 1.  Rivet 33.  BR2 fuse 2.  Schematic plate 34.  BR3 fuse 3.  Data plate 35.  BR4 fuse 4.  Harness assy 36.  Unit 1 fuse 5.  Nut 37.  Unit 2 fuse 6.  Washer 38.  Unit 3 fuse 7.  Relay panel assy 39.  Unite 4 fuse 8.  Screw 40.  MR1 fuse 9.  Over frequency relay 41.  MR2 fuse 10.  Under frequency relay 42.  MR3 fuse 11.  Under/overvoltage relay 43.  MR4 fuse 12.  Time delay relay 44.  Nut 13.  Time delay relay 45.  Screw 14.  Relay 46.  Fuse holder 15.  Relay 47.  Plate, "normal Power" 16.  Diode 48.  Plate, "return" 17.  Time delay relay 49.  Plate, "freq. select" 18.  Diode pack 50.  Plate, "AC-15A" 19.  Time delay relay 51.  Plate, "BR1-5A" 20.  Run relay 52.  Plate, "BR2-5A" 21.  Terminal block 53.  Plate, "BR3-5A" 22.  Terminal block 54.  Plate, "BR4-5A" 23.  Marker strip 55.  Plate, "unit 1DC-5A" 24.  Marker strip 56.  Plate, "unit 2DC-5A" 25.  Marker strip 57.  Plate, "unit 3DC-5A" 26.  Panel 58.  Plate, "unit 4DC-5A" 27.  Fuse panel assy 59.  Plate, "MR1-5A" 28.  Panel light 60.  Plate, "MR2-5A" 29.  Selector switch 61.  Plate, "MR3-5A" 30.  Toggle switch 62.  Plate, "MR4-5A" 31.  AC fuse 63.  Fuse panel 32.  Fuse, BR1 64.  Box assy a.    Test.    Test  the  under/over  voltage  module  as follows: (1)  Under/over voltage relay (11, figure 15-9) (a)      Connect   the   under/over   voltage device as shown in figure 15-10. (b)    Close  S1,  adjust  variac  for  110V AC on AC voltmeter. (c)  With ohmmeter connected between terminals    5    and    7,    reduce    AC voltage.  Relay should trip at 103V AC at this point, ohmmeter will no longer show continuity. (d)  With ohmmeter connected between terminals 5 and 6 adjust AC voltage to read 130 volts. (e)  Increase voltage.  Relay should trip at   132V   AC.      Ohmmeter   will   no longer show continuity. b.  Replacement. WARNING REMOVE 120V AC POWER PRIOR TO MOVING AND REPLACING DEVICE. 15-14