TABLE  2-1. TOOLS AND SUPPORT EQUIPMENT, TEST, REPAIR CALIBRATION AND HANDLING (CONT) NSN or Item Part No AC Power Supply 17 BU-3 Superior 120/208 Vat, 3 Electric  (58474) Phase, 4 wire (or  equivalent) 60 HZ C Voltmeter Model 904 Weston 0-120  VAC (65092) (or equiva- lent) Test stand Actua-  4940-00-152-2107 tor (or  equivalent) AC Ammeter Model 433 Weston (65092) or equivalent Test Set, Gen & 4910-00-092-9136 Voltage  Regulator (or  equivalent) Test Set, armature   6625-00-828-5810 (or  equivalent) Variable voltage  Model 1308 Variable  frequency  General  Radio power supply (0- (24655) 160) VAC, 20-450   (or equivalent) Hz REFERENCE___ Fig 3-4 8-11 8-8 8-19 8-21 13-3 8-11 14-2 14-11 8-8 8-9 8-12 8-12 8-13 8-14 7-3 7-4 7-5 7-5 7 - 7 7-8 7-9 Para 3-7 8-7 8-7 8-12 8-18 13-6 8-7 14-10 14-28 8-7 8-7 8-7 8-7 8-7 8-7 7-6 7-6 7-6 7-6 7-6 7-6 7-6 7-6 Use Thermal  watt  converter  testing Overload relay test Short circuit relay test Excitation system assembly test Load measuring unit test Hydraulic  actuator  test Overload relay test Battery  charging  alternator  in- spection and test Electric  starter  inspection  and test Short  circuit  (Bench  Test)  relay test  (400HZ) Overvoltage relay test Underfrequency  relay  test  (50/60 Hz) Underfrequency  relay  test  (400HZ Undervoltage relay test (400 HZ) Permissive  parallel  relay  test Electro-hydraulic  governor Magnetic amplifier bias test 50/60 HZ Electro-hydraulic  governor  freq- uency sensing test (50/60 Hz) Electro-hydraulic  governor  re- ctifier bridge and-feedback wind ing test (50/60 Hz) Electro-hydraulic  governor  paral- lel winding test (50/60 Hz) Electro-hydraulic  governor  mag- netic amplifier bias test (400 H Electro-hydraulic  governor  fre- quency sensing test (400 Hz) Electro-hydraulic  governor  rec- tifier bridge and feedback winding test (400 Hz) Electro-hydraulic governor paral- 7-10 Change 3 2-5 lel winding test (400 Hz)