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 TM 55-1925-273-10-1
0045 00
COMPRESSED AIR PIPING, FORWARD BULKHEAD
8
7
9
6
2
200
200
100 120
80
250
250
150
150
140
60
100
100
300
300
40
160
3
50
50
350
350
180
20
400
400
200
0
0
0
1
TO PUMP
4
5
DRIVE ENGINE
3
TO BOW
11
10
THRUSTER ENGINE
12
Table 17. Compressed Air Piping, Forward Bulkhead (refer to figure 17)
Key
Control/Indicator
Function
1
CA-41, BYP RDC STA
This valve permits compressed air to bypass the ship's service air regulator.
2
CA-40, SVCE AIR TK INL
This valve isolates the ship's service air regulator.
3
Pressure Regulator
The pressure regulator regulates the pressure of the compressed air entering
the ship's service air receiver.
4
CA-5, STG AIR TO BOW
This valve secures the starting air to the bow thruster engine starter.
THRUSTER ENG Valve
5
Regulator, Bow Thruster
This regulator regulates the pressure of the compressed air supplied to the
Engine Starting Air
bow thruster engine starter.
6
Bow Thruster Shaft Brake
This valve is pulled UP to apply the bow thruster shaft brake.
Control Valve
7
BOW THRUSTER ENG
This gauge indicates the starting air pressure available to the bow thruster
STG AIR PRESS Gauge
engine.
9
PUMP DR ENG STG AIR
This gauge indicates the starting air pressure available to the pump drive
PRESS Gauge
engine.
9
FIRE MAIN PRESS Gauge
This gauge indicates the discharge pressure of the diesel engine-driven fire
pump.
10
Regulator, Pump Drive
This regulator regulates the pressure of the compressed air supplied to the
Engine Starting Air
pump drive engine starter.
0045 00-23
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