2-22.- OPERATION OF BOOSTER HOSE REEL (Continued).
Shut down pump by turning engine throttle control knob (3, figure 2-1) clockwise to throttle engine down.
Turn heat exchanger control switch (20, figure 2-1) to the "OFF" position.
Turn pressure relief control knob (12, figure 2-1) clockwise until tight.
Rewind hose onto hose reel and secure hand brake.
2-23. POST OPERATIONAL PROCEDURES.
a. Immediately upon return from a fire fighting mission, service and check the truck.
b. Determine if any physical damage has occurred to the truck or components/accessories during the mission.
2-24. DRAINING WATER FROM TANK.
a. The water tank can be drained onto the ground bene th the truck by manually opening the water tank drain knob.
b. Pull out water tank drain knob (21, figure 2-1) to open the drain valve. Make up air will enter the tank through the
fill tower on top of the truck.
2-25. DRAINING WATER FROM FIRE PUMP.
For operation under usual conditions, drain the fire pump after each firefighting operation as
Open 2 1/2 inch discharge outlet drain knob (23, figure 2-1).
Remove cap from 3 inch suction inlet (17, figure 2-1).
Remove cap from 2½ inch discharge outlet (26, figure 2-1).
Open all discharge outlet control handles (24, 25, 27 and 28, figure 2-1).
Open master pump drain control knob (30, figure 2-1) to drain fire pump.