Pumping from Water Tank

TM 5-4210-233-14&P-1

2-13. FIREFIGHTING OPERATIONS-Continued

(5) Depress the brake pedal and engage truck transmission into D (drive).

CAUTION

Do not put truck transmission in reverse.

Damage to water

pump may result.-

NOTE

If the green OK TO PUMP light does not illuminate, or a grinding

noise occurs, move the transmission back to N (neutral), pause

for several seconds and then move the selector to D (drive).

NOTE

When pump is engaged, truck speedometer should indicate

approximately 18 MPH.

(6) Prime the pump by pulling PRIMER control handle out.

(7) Turn RELIEF VALVE lever to ON position and rotate INCREASE/DECREASE handle to obtain

desired pump output pressure.

(8) Open DISCHARGE valves slowly and accelerate engine with THROTTLE control on pump panel

to obtain desired discharge pressure and capacity.

CAUTION

Monitor engine coolant temperature. If the temperature exceeds

210 deg. F (99 deg. C), or the alarm sounds, open ENGINE

COOLER control valve gradually until temperature stabilizes at

200 deg. F (93 deg. C). Failure to heed this caution may cause

engine damage.

e. Pumping from Water Tank.

(1) Make sure all caps are tight on pump side suction connections.

(2) Engage pump transmission. Engage truck transmission into D (drive).

CAUTION

Do not put truck transmission shift lever in R (reverse) position.

Damage to water pump may result.

(3) Open valves in piping between watertank and pump suction, and at least one DISCHARGE

valve.

2-51