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OPERATING FROM WATER TANK (PUMP AND ROLL MODE).
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TM-5-4210-224-14-P 250 6PM Mini-Pumper Firefighting Truck Model No.:CM-KFT-3 Manual
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OPERATING FROM FIRE HYDRANT.
TM5--4210-224-14&P
2-20. OPERATING FROM DRAFT.
a.
Position fire truck as near to water source as possible.
CAUTION
Fire pump will heat up rapidly if pump is operated with all discharge valves closed. Prolonged
operation will cause damage from overheating.
b.
Attach strainer to the other end of the suction hose and submerge in water source.
c.
Engage fire pump as described in paragraph 2-15.
d.
Prime fire pump as described in paragraph 2-16.
NOTE
If possible, submerge the strainer at least two feet below the surface of the water and keep the
strainer off the bottom. Use every precaution to keep sand, leaves, or other foreign material
away from the strainer to prevent restriction of flow. Make sure suction connections are tight.
AVOID BUMPS OR SHARP BENDS IN SUCTION HOSE. Make sure no part of hose is higher
than pump suction inlet. Air pockets in suction hose will cause loss of prime, or erratic pump
action, which will reduce pump capacity.
e.
Pull open desired discharge valve control(s).
f.
Turn engine throttle control knob (3, figure 2-1) counterclockwise to accelerate engine until master pressure
gauge (9) indicates desired discharge pressure.
g.
Turn heat exchanger control switch (20, figure 2-1) to the "ON" position.
h.
Turn pressure relief control knob (12, figure 2-1) counterclockwise to decrease pump discharge operating
pressure, clockwise to increase pump operating pressure.
NOTE
Periodically check engine temperature gauge (1, figure 2-1) for normal engine-operating
temperature range of 100F (55.5C) to 250F (138.8C).
Change 1 2-51

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