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 TM 55-1905-220-14-2
2-84. SEWAGE TANK FLUSHING (Cont).
(4) Equipment and Repair Parts Stores (2-40-0-A).
(a) Place disconnect switch (4) in the ON position.
(b) The green POWER ON lamp (5) will light.
(c) Place discharge ball valve (6, FO-40) lever in the on position.
(d) Place vent ball valve (7, FO-40) lever in the on position.
(e) Press SYSTEM START switch (8).
(f) The green SYSTEM ON lamp (9) will light.
(g) Press the OVERBOARD DISCHARGE PUMP - START JOG switch (10) momentarily.
(h) The red MOTOR RUN lamp (11) will light.
(i) The discharge pump will run.
(j) The pump will shut off when the tank is emptied to 40 gallons (151 liters).
(k) The red MOTOR RUN indicator (11, FO-40) will go out.
(l) Rotate shutoff valve (12, FO-40) counter-clockwise.
(m) Place ball valve (13, FO-40) lever in the on position.
(n) Fill tank to 500 gallons (1892.5 liters) as shown on sight gauge (14, FO-40).
(o) Place ball valve (13) lever in the off position.
(p) Press the overboard discharge pump START-JOG switch (10).
(q) The red MOTOR RUN indicator (11) will light.
(r) The discharge pump will run.
(s) The pump will shutoff when the tank is emptied to 40 gallons (151 liters).
(t)
Repeat steps m through s if more flushing is required.
2-526
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