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![]() TM 55-1915-200-10
NOTE
b. Set ON/OFF switches on upper left side of
Wait 5 to 10 seconds between
control boxes (1 and 2, FIGURE 2-116, Sheet 1 of 4)
reversals of direction to permit the
above each compressor to OFF (down).
servoamplifier to stabilize.
c. Set circuit breakers No. 3 (freeze room) and
No. 4 (chill room) to OFF on power panel P2 in upper
machinery room (FIGURE 2-110).
f. Use the TILT/AZIMUTH switch (9) to rotate the
compass card to the approximate ship's course.
d. Turn OFF door seal heater, (14, FIGURE 2-116,
Sheet 4 of 4).
NOTE
In the (+) position, the card rotates
2-5.4.5. Gyrocompass.
counterclockwise; in the (-) position,
the card rotates clockwise.
NOTE
Compass starting procedure should
begin at least 2 hours before the
g. Position MODE SELECTOR switch (7) to start.
compass is to be used to allow
Wait 10 minutes before proceeding.
proper settling.
The compass
h. Depress caging control (1) on top of binnacle.
should also have been stopped for a
Notice that caged lamp (15) extinguishes.
minimum of 1/2 hour before
i. Position MODE SELECTOR switch (7) to
restarting.
MANUAL LEVEL.
j. Operate TILT/AZIMUTH switch (9) to level the
a. Set the gyrocompass power converter switch
gyro as indicated by the LEVEL METER (3) indicating
No. 25 (Figure 2-117) on the Pilothouse Emergency
zero.
Distribution Panel EP2 to the ON position.
k. Position the MODE SELECTOR switch (7) to
b. Set the gyrocompass MK 37 transmitter switch
RUN.
No. 23 to the ON position.
1. Position N-S switch (14) as required.
c. Position RPTR switch (12, FIGURE 2-117) to
m. Position LATITUDE control (13) to ship's
OFF.
d. Position MODE selector switch (7) to slew.
n. On compass repeater (FIGURE 2-118), press
synchronizer knob (4) to engage gear train.
NOTE
o. Rotate the repeater card (5) to agree with
The compass will slew rapidly if the
master compass.
gyro is uncaged.
p. Release synchronizer knob (4).
e. Note that CAGED lamp (15) is lit. If it is not,
depress caging control (1) on top of binnacle to cage the
gyro and wait 5 minutes for the ballistic fluid to stabilize.
2-357
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