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MSC/MST-OPS-1
9 Mar 2012
SECTION 2
System Description
DUMP BAR
TANK DRAIN
A spray bar that contains several rows of 3/8
inch drain holes to dispense water.
A
hydraulically operated BFV controls the water
supply to the dump bar. The BFV is controlled
electrically from the cab control box and is
actuated by a hydraulic cylinder. The actuators
receive hydraulic pressure from the solenoid
control box assembly. Dump bars can be either
gravity or pressure fed.
A hydraulic BFV attached to the water tank
pressure pipe is used to drain water from the
water tank. The BFV is controlled electrically
from the cab control box and is actuated by a
hydraulic actuator.
The actuators receive
hydraulic pressure from the solenoid control
box assembly. Tank drains can be either
gravity or pressure fed.
HOSE REEL
FIRE SUPPRESSION SYSTEM
A system that consists of a 120 or 60 gallon
stainless steel holding tank, an electric or
pneumatic actuated shut-off valve, in-cab
control switch, hosing and a foam eduction
nozzle mounted to the monitor.
FOAM CONCENTRATE TANK
A stainless steel tank
mounted in the forward
upper portion of the
water tank.
The
holding tank contains a
supply tube that extends
to the bottom of the
tank and connected to a flexible hose at the top
of the tank and then routed to the foam agent
shut-off valve. The tank also contains a
pressure/vacuum cap which keeps foreign
matter out of the tank while providing for
pressure relief and air displacement during
temperature changes.
A reel assembly that is located on the bottom
aft end of the water tank fitted with a 1 inch or
1.5 inch diameter reinforced rubber hose and a
fire fighting style nozzle. The hose reel
assembly receives pressurized water from the
pressurized manifold on the back of the tank to
operate.
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