TM 55-1925-284-14&P
0014 00
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
MAIN DECK
AUX
ENGINE
MCHRY SP
ROOM
AUX
CA-84
NO. 1
MCHRY SP
SD-13
56
SD-2
NO. 1
P
SET AT
0-15
OVBD
SD-3
3 PSIG
PSIG
P
FROM
0-30
COMP AIR
CA-83
PSIG
CA-80
CA-81
BLOWER
FROM
SET AT
CA-82
1
POTABLE
2 PSI 8
PW-100
WATER
2
MSD-5
SD-9
MSD-3
7
MSD-6
SD-1
SEWAGE INLET
P
CHLORINATOR
0-60
P
PSIG
0-60
EFFLUENT
PSIG
MARINE
WET
SANITATION
AIR SCOUR
SD-7
SD-19
P
WELL
MSD-14
SD-8
MSD-11
MSD-8
B MSD-10
DEVICE
0-60
DISCHARGE
PSIG
SD-12
NO. 1 SEWAGE
MSD-9
MSD
SD-20
DISCH PUMP
DRAIN
DISCH
AUX
ENGINE
PUMP
PD-4
MCHRY
ROOM
SD-5
FROM WWTR SYS
SP NO. 1
MSD-13
SD-4
SEWAGE HOLDING TANK
NO. 2 SEWAGE
SD-6
DISCH PUMP
4
9
11
3
10
Figure 4. MSD Piping and Valves Schematic
7. OPEN valve MSD 6 BLOWER DISCH TO AIR SCOURING SOV (figure 4, item 7).
8. CLOSE valve MSD 5 BLOWER DISCHARGE SHUTOFF (figure 4, item 8)
! CAUTION
If the blower relief valve lifts during the air scour process, the piping to the air scour or
the air scour is blocked. Notify the maintenance supervisor. STOP the procedure and
equipment until the blockage can be removed. Failure to comply with this caution may
result in damage to the equipment.
9. Press the START button (figure 3, item 3) on the MSD motor controller (figure 3, item 2).
10. Verify that the blower (figure 4, item 1) has started and is supplying 2 PSI (0.138 bar) to the media tank
(figure 4, item 9).
0014 00-6