Operation Under Usual Conditions (Cont)
2-118. PUMPING FROM HYDRANT OR IN RELAY (POSITIVE WATER
Make sure valves, drains, and caps are closed.
Foam system will not operate when pump intake
pressure is more than 5 psi (34 kPa).
a. Position vehicle for convenient hydrant hookup and discharge hose layout.
Bring vehicle to complete stop.
b. Park vehicle (TM 9-2320-279-10-1, para 2-11).
c. Remove cap from either main inlet (1) or auxiliary inlet (2).
Do not use hard suction hose for step d. Hard suction
hose will not hold pressure. Hose may fail and separate
causing injury to personnel and/or damage to equipment.
Pumping may be performed at either the main inlet or the
d. Connect either 5 in. (13 cm) soft suction hose to main inlet (1)
or 2 in. (6.4 cm) discharge hose to auxiliary inlet (2).