TM  5-6115-332-14 P-8-614-14 TO  35C2-3-424-1 (2) Use  a  multimeter  set  on  the  RX1  scale  and test  between  transformer  terminals  Al  and  A2,  B1 and B2, and  C1  and  C2.  Continuity  should  be shown  all  three  tests. (3) Now, test between transformer terminal A1 and B1, between Al and Cl, and between B1 and Cl.  There  should  be  no  continuity  indicated  in  any of  these  three  tests. (4) Connect  the  meter,  in  turn,  across  the  ter- minals of each resistor and measure the resistance. The  resistance  should  measure  within  one  percent above or below 305 ohms (301.95-308.05 ohms). b. Removal. Refer to figure  7-1 and the follow- ing   instructions   for   removal   of   the   current transformer. (1) Tag and disconnect leads from the resistors and  the  current  transformer. (2) Remove the   screws, washers, and transformer mounting strap securing the current transformer to the control panel. (3) Remove  the  current  transformer. c. Cleaning and Inspection. (1) Clean the current transformer using a clean lint free cloth to remove any residue. (2) Inspect  current  transformer  and  resistors for  evidence  of  overheating. (3)  Inspect   transformer   case   for   cracks, breaks, or other damage and resistor mounting studs for corrosion or thread damage. d. Repair. Replace a damaged or defective cur- rent transformer or resistor(s) as required. e. Installation. (1) Position  current  transformer  in place in the control  box. (2) Secure  with  transformer  mounting  strap, washers and screws. (3) Reconnect  leads  to  the  current  transformer and field flash switch. 7.6 Bench Test and Repair Procedure (Voltage Regulator). a. General. This paragraph provides instruc- tions  covering  test  and  repair  procedures  for Voltage  Regulator  NSN:  6110-00-764-7621;  P/N 13219E0883(97403). b.  Removal.   Using  figure  7-2  as  a  guide,  remove the  Voltage  Regulator  as  follows: (1) Remove  screws  and  washers  securing  ac- cess  panel  and  remove  panel  (fig  7-2). (2) Tag and disconnect all electrical leads. (3) Remove four (4) screws and lockwashers. (4) Remove  the  Voltage  Regulator. c. Test Equipment and Material Required: (1) Multimeter - TS 352, 1M105 or equivalent. (2) Resistor,  Fixed:  30  OHMS  tolerance  at minimum  25  Watt  rating. (3)Rheostat, Variable; 750 OHMS at 25 Watt rating  (Rheostat  supplied  with  serviceable  Voltage Regulators). (4) Soldering Iron: Small tip, 500-700 Degree Fahrenheit   rated. (5) Solder,  Rosin  Core. (6) Voltage  Source:  110-120  Volts  AC,  single phase,  60  HZ. d. Test Procedures. Extreme care should be taken while con- ducting test involving use of the 110-120 60 HZ Voltage Source for safety of per- sonnel, and damage to equipment being used. CAUTION While using a soldering iron, caution should be taken to prevent damage to components, and printed Circuit board from  excessive  prolonged  applied  heat. Damage could result to replacement items, rendering them unsuitable for operation. (1) With Voltage Regulator removed from the generator  set,  place  multimeter  being  used  on OHMS  position  RX  100. (2) Remove  two  (2)  screws  located  on  the  ex- treme Left and Right side of the terminal strip, TB1.  Gently  pull  the  terminal  strip  along  with  the Circuit board upward making sure that wiring leads are free from regulator housing and corⁿ ponents. 7-4 Change 5