Operation Under Usual Conditions (Cont)
2-133. PUMP AND PLUMBING BLOW-OUT PROCEDURE.
This procedure is to be used when preparing the TFFT for
storage and shipment or post operation in cold Environment.
a. Complete mission.
Make sure truck is parked in a location where personnel
and other equipment will be protected from water
spraying out of the discharges and drains.
b. Position truck in a suitable location to drain and spray out remaining
c. Apply parking brake (TM 9-2320-279-10-1, para 11).
Drivers pre-connect A and B must be disconnected prior to
performing blow-out procedure. Hoses may become pressurized,
causing injury to personnel and/or damage to equipment.
d. Disconnect drivers pre-connect A hose (1) and drivers pre-connect B
hose (2) from two pre-connects (3).
e. Drain water tank (para 2-120).
Open MASTER DRAIN valve (4).
Perform step g. only if foam system and foam agent tanks
are going to be left in a "dry condition."
g. Drain and flush foam agent from foam tank (para 2-132).