ARMY TM 9-6115-643-24
AIR FORCE TO 35C2-3-445-22
4.11.3
Installation
a. Install droop current transformer (34, FIGURE 4-3) in output box with screws (33) and nuts (34).
b. Wrap main generator cables around droop current transformer (34) using the same number of wraps noted during
removal.
c. Connect main generator cables to voltage reconnection board (18) and remove tags.
d. Connect droop current transformer (34) electrical leads to terminal board (25) and remove tags.
e. Close output box and engine access doors.
f. Connect negative battery cable and close battery access door.
4.12 POWER POTENTIAL TRANSFORMER.
4.12.1
Removal.
a. Shut down generator set.
b. Open battery access door and disconnect negative battery cable.
c. Remove control box assembly, paragraph 2.19.2.
d. Remove output box top panel, paragraph 4.7.1, step k.
e. Tag and disconnect power potential transformer (37, FIGURE 4-3) electrical leads.
f. Remove screws (36), nuts (35), and power potential transformer (37) from output box.
4.12.2 Testing (P/N: 17910).
a. Remove power potential transformer, paragraph 4.12.1.
b. Connect terminals 1 and 2 of power potential transformer to an AC power source (polarity is not important).
c. Set power supply for 208 VAC, 60 Hz. Turn on power supply.
d. Set multimeter for AC volts and take readings between the following terminals and compare to voltages shown:
Terminals 3 and 7 = 144-176 VAC
Terminals 4 and 6 = 27-33 VAC
e. Replace power potential transformer if readings are not as voltages above.
f. Install power potential transformer, paragraph 4.12.4.
4.12.3
Testing (P/N: A1497B).
NOTE
Used on MEP-804A only.
a. Remove power potential transformer, paragraph 4.12.1.
b. Connect terminals 1 and 2 of power potential transformer to an AC power source (polarity is not important).
c. Set power supply at 208 VAC, 60 Hz. Turn on power supply.
d. Set multimeter for AC volts and take readings between the following terminals and compare to voltages shown:
Terminals 5 and 6 = 54-66 VAC
Terminals 5 and 4 = 54-66 VAC
4-22
