TM5-6115-593-34 NAVFAC P-8-631-34 TO-35C2-3-463-2 between  57  and  62  Hz,  generator set     meter     shall     read     within     1 percent of the generated frequency (to the right).  The error at any point on   frequency   meter   shall   not   be greater than 1 percent. (c)        If    the    above    requirements    are    not satisfied, replace both the frequency meter and transducer as a matched set. (2) Transducers A107 and A108 (7, figure 15-3) are tested as follows: WARNING HIGH VOLTAGES PRESENT DURING TEST. DEATH OR SEVERE BURNS MAY RESULT IF PERSONNEL FAIL TO OBSERVE SAFETY PRECAUTIONS. (a)  Connect transducer REF DES K25A K25B K26 K27 K28 K29 K30 K31 K32 K33 K34 K35 K36 (either A107 or A108) as shown in figure 15-7, using test equipment as shown. (b)    Adjust  T1,  T2,  and  T3  to  their  minimum position, fully counterclockwise. (c)  Close S1 and open S2 and S3. (d)    Energize  120/208V  AC  3  phase,  4  wire, 60 Hz power source. (e)  Adjust T1 until 0.7 ampere is indicated on ammeter  A1.    At  this  point,  the  percentage  of  RATING METER shall indicate 33 percent. (f)      With   S1   closed,   close   switch   S2,   and adjust  T2  until  0.7  ampere  is  indicated  on  ammeter  A2. The   percentage   of   RATING   METER   shall   indicate   66 percent. (g)  With S1 and S2 closed, close S3.  Adjust T3  until  0.7  ampere  is  indicated  on  ammeter  A3.    The percentage    of    RATING    METER    shall    indicate    100 percent. (h)    If  requirements  of  steps  (e),  (f),  and  (g) are not met, replace the transducers. b.    Replacement.    Transducers  A103,  (26,  figure 15-3), and FUNCTION Alarm Silence Alarm Silence Alarm Arming High Coolant Temperature High Oil Temperature Low Oil Pressure Low Fuel Level Overspeed Overvoltage Undervoltage Reverse Power Overload Short Circuit A107  and  A108  (7),  are  removed  from  the  plate assembly    (30)    by    disconnecting    and    tagging wires.  Remove transducer (26) by removing four screws    (24)    and    nuts    (25).        Remove    both transducers  (7)  by  removing  screws  (5)  and  nuts (6). 15-10.  ANNUNCIATOR CONTROL ASSEMBLY A20 (13, figure   15-3).      The   annunciator   control   relay   assembly contains four terminal boards, 20 diodes, and 13 relays: 15-7