ARMY TM 9-6115-644-24
AIR FORCE TO 35C2-3-446-12
MARINE CORPS TM 09249A/09246A-24/2
f.
g.
h.
i.
j.
k.
l.
m.
n.
Connect electrical leads, as tagged during removal, to watt transducer (40), Ioad measuring unit (69), reverse.
power relay (49), permissive paralleling relay (51), resistor-diode assembly (71), short circuit/overload relay
(47), frequency transducer (38), over/under voltage relay (45), DC CONTROL POWER circuit breaker (35),
BATTERY CHARGER FUSE assembly (32), OVERSPEED RESET switch (10), FREQUENCY SELECT select
switch (14), REACTIVE CURRENT ADJUST rheostat (3), LOAD SHARING ADJUST rheostat (7), and shunt
(43). Remove tags.
Connect electrical leads to AC voltage regulator (2, FIGURE 4-3) and governor control unit (3). Remove tags.
Secure terminal boards (12) to control box with screws (10) and nuts (11).
Position sockets (8) on tracks (9) as tagged on removal.
Secure sockets (8) to tracks (9) with dips (7), insulators (6), washers (5), and screws (4). Remove tags.
Install relays, paragraph 2-60-4.
Install voltage sensing relay, paragraph 2-59-4.
Install control box assembly, paragraph 2-19-4.
Connect negative battery cable and dose battery access door.
4-5
LOAD MEASURING UNIT
WARNING
High voltage is produced when this generator set is in operation. Improper operation
could result in personal injury or death.
4-5-1 Testing.
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
4-12
Start and operate generator set at rated frequency and voltage.
Apply a resistive load to generator set.
Note reading on kilowattmeter (PERCENT POWER).
Determine DC voltage (calculated value) from the kilowattmeter reading using the following formula:
10.8 X (kilowattmeter reading)
100
Release control panel by turning two fasteners and lower control panel slowly.
Set multimeter for DC volts and connect positive lead to terminal 11 of load measuring unit (26, FIGURE 4-3)
and negative lead to terminal 12.
Compare DC voltage (calculated value) to multimeter reading.
Load measuring unit must be replaced if difference is more than ± 1.2 VDC.
Shut down generator set.
Remove multimeter from load measuring unit terminals.
Raise and secure control panel.
