b.
c.
d.
e.
f.
g.
TM 9-6115-660-13&P
(7) Refer to TM 9-6115-642-10 and:
(a) Slowly increase frequency of generator set that was just started. Continue until
SYNCHRONIZING lights (1 and 9) go from bright to dark together at a rate of one or
more times per second.
(b) Slowly decrease frequency of generator set that was just started. Continue until
SYNCHRONIZING lights (1 and 9) blink together at a rate of once every three to four
seconds.
(8) When SYNCHRONIZING lights (1 and 9) are dark, hold the switch box ON/OFF switch
(6 or 4 for the generator set that was just started to ON position until ON light remains
on. Release the switch. The ON LINE light for the first generator set that was running
should immediately go out.
(9) Check switch box lights, as follows:
(a) The ON LINE light (7 or 3) should be lit for the generator set that was just started.
(b) The ON LINE light (7 or 3) for the other generator set should be off.
(10) If lights fail to go on or off, repeat steps (7), (8), and (9). If lights do not function properly,
report the problem to the next higher level of maintenance.
The second generator set is now supplying electric power to the connected load. All
SYNCHRONIZING lights (1 and 9) should be dark.
Refer to TM 9-6115-642-10 and set AC CIRCUIT INTERRUPTER switch for generator set that
is now offline to OPEN position.
Check that switch box ON/OFF switch (6 or 4) for the off line generator set is at center position.
Refer to TM 9-6115-642-10 and:
(1)
(2)
(3)
Shut down generator set that is now offline.
Using generator set VOLTAGE adjustable rheostat, adjust voltage of generator set that is
now on line to the desired value.
Using generator set frequency adjust control, adjust frequency of generator set that is now
on line to desired value.
Refer to table 2-2 and perform “After” PMCS for the generator set that was shut down.
For the generator set that is now ON LINE, perform the PMCS listed as “During” in table 2-2.
2-5.3.3 Stopping Generator Set.
a.
b.
c.
Set the switch box ON/OFF switch (6 or 4, figure 2-9) for the generator set to be stopped to
OFF position.
Stop the generator set in accordance with TM 9-6115-642-10.
Perform the generator set PMCS listed as “After” in table 2-2.
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