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FIGURE 2-177. Portable Firefighting Service, Gasoline Engine Driven Centrifugal Pump (Sheet 3 of 3).
Up
TM-55-1915-200-10 Logistics Support Vessel (LSV) NSN
Next
Manual Startup With Automatic Priming.
TM 55-1915-200-10
NOTE
a. Unscrew and remove manual prime inlet plug
If engine is cold, advance CHOKE
(10, FIGURE 2-177, Sheet 2 of 3) from priming inlet.
control (6) fully clockwise (closed),
b. Fill pump with water until filler cap is full,
then half open as engine starts, and
replace plug in priming inlet.
fully open for running.
c. Place OFF-START-RUN switch (3, Sheet 1 of 3)
e. Depress and hold START pushbutton (5) until
in START position.
engine starts.  Adjust choke and speed controls as
d. Advance SPEED control (7) in clockwise
required.
direction, 1/4 full throttle.
CAUTION
NOTE
Do not allow pump to run more than
If engine is cold, advance CHOKE
2 minutes without water flowing.
control (6) fully clockwise (closed),
Lack of cooling water could cause
then half open as engine starts, and
severe impeller and exhaust system
fully open for running.
damage.
e. Depress and hold START pushbutton (5) until
f. Rotate water discharge valve (8, FIGURE 2-
engine starts.  Adjust choke and speed controls as
177, Sheet 2 of 3) counterclockwise to fully CLOSED
required.
position.
CAUTION
NOTE
Do not allow pump to run more than
If suction lift is 20 feet or less, push
2 minutes without water flowing.
in  and  keep  firm  continuous
Lack of cooling water could cause
pressure on PRIME pushbutton (4,
severe impeller and exhaust system
Sheet 1 of 3) until pump is primed.
damage.
g. Open slowly by rotating water discharge valve
f. Open water discharge valve (8, Sheet 2 of 3)
(8, Sheet 2 of 3) clockwise until indicating pressure on
slowly and advance engine speed control (7, Sheet 1 of
gauge and advance speed control (7, Sheet 1 of 3) as
3) as required to attain desired pumping pressure.
required.
g. Place OFF-START-RUN switch (3) in RUN
h. Release PRIME pushbutton (4) after priming
position.
pump.
h. Rotate
CHOKE
control
(6)
to
full
i. Place OFF-START-RUN switch (3) in RUN
counterclockwise position.
position.
2-5.27.3. Turn-Off Instructions.
j. Rotate
CHOKE
control
(6)
to
full
a. Rotate SPEED control (7, FIGURE 2-177, Sheet
counterclockwise, OFF position.
1 of 3) to full counterclockwise OFF position.
2-5.27.2. Manual Priming Startup.
b. Place OFF-START-RUN switch (3) in OFF
position.
2-493

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