ARMY TM 9-6115-644-24
AIR FORCE TO 35C2-3-446-12
MARINE CORPS TM 09249A/09246A-24/12
e. Connect electrical leads to AC circuit interrupter relay (40), current transformer (31), cranking relay (43), power
potential transformer (37), and voltage reconnection board (18). Install cover (5) with screws (4) on AC circuit
interrupter relay (40). Remove tags and dose output box access door.
On left side of engine connect electrical leads to auxiliary fuel pump, fuel level sender, fuel float module, magnet-
ic pickup, coolant temperature sender, governor actuator, fuel injection pump, oil pressure sender, low oil
pressure switch, DEAD CRANK switch, and coolant high temperature switch. Remove tags and close left side
engine access doors.
g. On right side of engine connect electrical leads to ether solenoid valve, starter motor, starter solenoid, and bat-
tery charging alternator. Remove tags and dose right side engine access doors.
Install output box top panel, paragraph 4-8-2, step j.
Install control box assembly, paragraph 2-19-4.
Connect negative battery cable and close battery access door.
4-11 CURRENT TRANSFORMER.
Shut down generator set.
b. Open battery access door and disconnect negative battery cable.
Remove control box assembly, paragraph 2-19-2
Remove output box top panel, paragraph 4-8-1, step 1.
e. Open output box and right side engine access doors.
Tag and disconnect current transformer (31, FIGURE 4-5) electrical leads.
g. Tag and disconnect main generator cables T2 and T8 from voltage reconnection board (18).
Unwrap main generator cables from droop current transformer (34) and current transformer (31). Note number
and direction of wraps.
Remove screws (29), flatwashers (30), nuts (28), and current transformer (31) from output box.
a. Remove current transformer, paragraph 4-11-1.
b. Set multimeter for ohms and check for continuity between secondary terminals A1 and A2, B1 and B2, and C1
If continuity is present, continue with test. If continuity is not present, current transformer is defective and must
d. Set up a test circuit using 10 gauge wire as shown in FIGURE 4-6. Make ten passes with wire through phase
e. Turn on power source and load bank. Adjust load bank until 27.7 amps is indicated on ammeter.
Set multimeter for amperes, and connect to secondary terminals A1 and A2. Multimeter indication must be 0.9
to 1.1 amps.