Manual Startup With Automatic Priming.

TM 55-1915-200-10

primer pump to run for 30 to 45 seconds to flush out;

c. Open pump drain valve (9, Sheet 2 of 3) fully

release primer button.

counterclockwise. Keep open until drained.

(9) Shut discharge valve.

d. Flush pump with fresh water.

(10) Stop engine by disconnecting fuel hose

(1) Place suction hose with foot valve

and allowing engine to run until excess fuel is burned

and strainer into fresh water supply.

off.

(2) Prime pump until full, inspect for

(11) Depressurize and remove fuel tank.

leaks.

(12) Check oil level in priming pump oiler; fill if

(3) Shut discharge valve.

necessary. Switch engine control to OFF position, then

WARNING

push both starter and priming buttons to oil priming for

Ensure exhaust gases discharge to

storage. Hold both buttons for approximately 5 seconds.

outside atmosphere.

Release buttons.

(4) Start engine. Switch to start; advance

(13) Disconnect hoses and fitting.

speed slightly; press start button; choke as needed.

(14) Drain pump by opening pump drain valve

(5) Prime pump; push priming button and

fully counterclockwise.

hold, when water discharges from priming pump; ensure

(15) Dry unit, replace caps on all opening;

discharge hose is manned; open water discharge valve

close pump drain valve.

slowly. Release priming button.

NOTE

(16) Stow pump hoses and connectors.

Primer pump should evacuate air

2-5.27.4. Manual Startup With Automatic Priming.

from impeller housing and suction

a. Perform steps a through d in paragraph 2-

hose in approximately 60 seconds.

5.27.1.

CAUTION

b. Pull manual start pull cord (12, FIGURE 2-177,

Do not operate pump more than 2

Sheet 3 of 3) in a quick steady motion until engine

minutes unless pressure shows on

starts.

gauge or priming pump discharges

CAUTION

water.

Do not allow pump to run more than

(6) Operate pump; switch to run; adjust

2 minutes without water flowing.

engine speed to obtain desired discharge pressure.

Lack of cooling water could cause

(7) Operate pump for 1 minute; inspect for

severe impeller and exhaust system

leaks, unusual noises and vibrations.

damage.

(8) Slow engine speed to idle and push

c. Perform steps f through j in paragraph 2-5.27.1.

primer button; observe discharge at primer pump; allow

2-494