TM 55-4920-328-13
Table 2-5. Function of Controls and Indicators –Continued
INDEX AND
REFERENCE
FIGURE NO.
NOMENCLATURE
DESIGNATION
FUNCTION OR INDICATION
CONTROL POWER MODULE (figure 1-26)-Continued
6, figure
LEFT CONSOLE
S25
Used to energize the blower 8A1 (1, fig-
1-26
FAN 2-Speed
ure 7-20) in the left hand castle assem-!
Switch
bly (Unit 8).
7, figure
ISNT PWR ON
S1
Used to energize the circuits to provide
1-26
Switch
117v ac, 60 Hz power to the WATER
SYSTEM, ENGINE SYSTEM, and
LIGHTS motor starter and relay con-
trols. Also provides power to the ser-
vices sub-module and battery charger
contactor K6.
8, figure
BRAKE PUMP
S3
Used to energize relay K1 in the water
1-26
START SWITCH
system circuitry to provide 208v ac, 60
Hz, three-phase power to the water
brake pump motor.
9, figure
COOLING PUMP
S5
Used to energize relay K4 in the water
1-26
START SWITCH
system circuitry to provide 208v ac, 60
Hz, three-phase power to the cooling
tower pump motor.
10, figure
TOWER FAN NO. 1
S7
Used to energize relay K2 in the water
1-26
START Switch
system circuitry to provide 208v ac, 60
Hz, three-phase power to the No. 1
cooling tower fan motor.
11, figure
TOWER FAN NO. 2
S9
Used to energize relay K3 in the water
1-26
START Switch
system circuitry to provide 208v ac, 60
Hz, three-phase power to the No. 2
cooling tower fan motor.
2-35
