TM 5-6115-465-12
TO 35C2-3-446-1
NAVFAC P-8-625-12
TM 06858B/06859D-12
toggle switch. It is placed in the single unit position
q. Reverse Power Indicator (16, figure 2-7).
for single unit operation and in the PARALLEL
The reverse power indicator is an indicator lamp
position for parallel operation.
with a red lens. It illuminates when reverse power
exceeds 20% and the reverse power protective de-
ab. Voltage Sensing Switch (27, figure 2-7).
vice actuates.
The voltage sensing switch is a double pole. two
position toggle switch. It permits either local or
r . Over Voltage Indicator (17, figure 2-7). The
remote monitoring of the voltage regulator circuit.
over voltage indicator is an indicator lamp with a
red lens. It illuminates when voltage exceeds 153
Panel Light Switch (28, figure 2-7). The
ac.
3 volts and remains for 180 milliseconds and the
panel light switch is a single pole toggle switch. It
over voltage protective device actuates.
controls the panel illumination lights.
s. Fault Indicator Fuse (18, figure 2-7). The
ad. Frequency Adjust Rheostat (29, figure 2-7).
fault indicator fuse is 1-1/4 x 1/4 inch, glass, 1
The frequency adjust rheostat increases or de-
amp, 250 volt fuse. It protects the fault indicator
creases the frequency output of the tactical precise
circuits from overload.
generator sets.
t. Test or Reset Switch (19, figure 2-7). The
NOTE
test or reset switch is a single pole, momentary on,
toggle switch. It permits testing of the fault indica-
tor lamps and resetting of fault indicator lights.
The frequency adjust rheostat is func-
tional on the precise generator sets
only.
u. DC Circuit Breaker (20, figure 2-7). The
dc circuit breaker is a push type circuit breaker.
ae. Circuit Breaker Switch (30, figure 2-7). The
It closes the 24 Vdc circuit from the battery to the
circuit breaker switch is a three position, momen-
controls. The DC circuit breaker is depressed
tary-on-momentary-off toggle switch. It opens and
(closed) during generator set operation.
closes the main load contactor. The circuit breaker
v. Manual Speed Control (21, figure 2-7). The
switch is in the center position during normal
operation.
manual speed control is a push-pull control. It con-
trols engine speed and thereby frequency output. A
vernier type adjustment allows finer control. This
af. Circuit Breaker Indicator (31, figure 2-7).
The circuit breaker indicator is a press-to-test
control is inoperable on precise models of the gen-
indicator light with a yellow lens. It illuminates
erator set.
when the main load contactor is closed.
w. Battle Short Switch (22, figure 2-7). The
battle short switch is a four pole on-off toggle
ag. Start-Run-Stop Switch (32, figure 2-7). The
switch. It is protected by a plastic guard. It per-
start-run-stop switch is a three position toggle
mits emergency operation by bypassing the protec-
switch, used to start and stop the generator set.
tive devices circuits (with the exception of the over-
speed and short circuit). The battle short switch
ah. Engine Primer Switch (33, figure 2-7). The
also locks out the starter circuit. During normal
engine primer switch is a single pole, two position
operation, the battle short switch is in the OFF
toggle switch. When the START-RUN-STOP switch
position.
is in the START position and the ENGINE PRIMER
switch is moved to the ON position, and then releas-
x. Battle Short Indicator (23, figure 2-7). The
ed, it actuates the ether starting aid. During opera-
battle short indicator is a press-to-test indicator
tion, the switch remains in the OFF position.
lamp with a red lens. It illuminates when the battle
short switch is moved to the ON position and the
ai. Running Time Meter (34, figure 2-7). The
generator set is operating.
running time meter is a time totalizing meter which
indicates total engine operating time in hours and
y. Voltage Adjust Rheostat (24, figure 2-7).
tenths of hours.
The voltage adjust rheostat allows adjustment of the
generator set output voltage.
aj.
Battery Charging Ammeter (35, figure 2-7).
The battery charging ammeter is a dial indicator
z. Synchronizing Lights (25, figure 2-7). The
type gauge which measures dc current flow to and
synchronizing lights are indicator lights with clear
from the battery. It is calibrated in 1 ampere incre-
lens. They indicate the synchronization of frequency
ments from -10 to +20. Normal indication of the
when the operation switch is placed in the
meter is dependent upon the stat e of charge of the
PARALLEL position for paralleling of the generator
battery. A low charge such as exists immediately
sets.
after engine starting, will result in a high reading.
When enough charge has been restored to the battery
aa. Operations Switch (26, figure 2-7). The
the indicator should move near 0.
operations switch is a four pole, two position,
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