TM 55-1925-284-14&P
0006 00
WATER CLOSET TO SEWAGE HOLDING TANK
1. Align the valves for the MSD to operate under unusual conditions as specified in figure 3 and table 1.
2. OPEN valve SD-3 SEWAGE DRAIN TO HOLDING TANK (figure 3, item 19).
3. Verify that valve SD-2 SEWAGE OVERBOARD DISCHARGE (figure 3, item 18) is CLOSED.
4. Verify that valve SD-1 SEWAGE INLET TO MSD (figure 3, item 17) is CLOSED.
5. Return the MSD to operation under usual conditions (WP 0005 00) as soon as the equipment malfunction
has been corrected.
MARINE SANITATION DEVICE SYSTEM
VENT
VENT
VENT
VENT
VENT
VENT
VENT
VENT
02 LEVEL
STBD PORT
SHORE SHORE
CONN CONN
01 LEVEL
SD-11 SD-10
27
26
MAIN DECK
AUX
ENGINE
MCHRY SP
ROOM
AUX
CA-84
NO. 1
29
MCHRY SP
5
SD-13
SD-2
19
NO. 1
P
SET AT
0-15
OVBD
SD-3
3 PSIG
PSIG
32
P
FROM
18
4
0-30
COMP AIR
1
CA-83
PSIG
CA-80
CA-81
BLOWER
FROM
SET AT
CA-82
POTABLE
2
PW-100
2 PSI
WATER
3
17
16
6
8
MSD-5
SD-9
MSD-3
7 MSD-6
SD-1
25
SEWAGE INLET
P
CHLORINATOR
0-60
P
PSIG
0-60
EFFLUENT
24
PSIG
23
MARINE
14
WET
11
SANITATION
AIR SCOUR
SD-7
SD-19
P
WELL
12 MSD-14
SD-8
MSD-11
MSD-8
B MSD-10
DEVICE
0-60
DISCHARGE
PSIG
30
SD-12
13
9
31
NO. 1 SEWAGE
MSD-9
MSD
SD-20
DISCH PUMP
DRAIN
DISCH
28
AUX
ENGINE
PUMP
PD-4
10
MCHRY
ROOM
SD-5
FROM WWTR SYS
SP NO. 1
MSD-13
15
21
SD-4
SEWAGE HOLDING TANK
NO. 2 SEWAGE
22 SD-6
DISCH PUMP
20
Figure 3. MSD Schematic
0006 00-2