Specifications

43
PUMP SHIFT OVERRIDE
The pneumatic pump shift shall be provided with a mechanical pump shift override with single override
control located on the driver's side of the vehicle. Pump pneumatic shift override control shall allow for
manual shifting of the air cylinder, allowing the pump to be shifted manually.
AUXILIARY COOLING SYSTEM-GATED
A supplementary heat exchanger system shall be installed on the apparatus. The heat exchanger shall be
installed inside the pump or engine compartment, controlled from the pump operator's panel, and labeled
to identify its operation. Pressure line (from pump discharge) to be gated, with a Class-1 1/4-turn 3/8" ball
valve control on pump control panel, with instructional nameplate.
MANIFOLD DRAIN: DISCHARGE AND SUCTION PORTS
A Trident equivalent manifold drain valve, with bronze body will be furnished installed inside pump
compartment. Drain valve to be mounted in lowest portion of pump compartment, piped with high
pressure nylon tubing, to low points of pump suction and discharge cavities to allow simultaneous
draining through a single drain valve.
Drain valve to be a 10-port "screw type" mounted beneath all drain ports, to include a rotating control
shaft and remote pump panel fluted control with engraved placard describing operation.
INTAKE RELIEF VALVE, 2-1/2" STAINLESS STEEL
A pump suction intake relief valve shall be furnished, installed inside pump compartment, flange bolted
or threaded to suction cavity of the fire pump. Valve to be of the pre-set (to 125 psi) adjustable bypass
design, to dump below the vehicle excessive inlet water pressure. The relief valve shall be adjustable
from the pump operator’s panel. The fire pump suction manifold Intake Relief Valve's outlet is to
terminate with a 2-1/2" i.d. flexible hose, outlet located at side of apparatus, away from the fire pump
operator's location, and labeled: "Pump Intake Pressure Relief Outlet".
PRESSURE GOVERNOR and MONITORING DISPLAY
Fire Research PumpBoss model PBA400-A00 pressure governor and monitoring display kit shall be
installed. The kit shall include a control module, pressure sensor, and cables. The control module case
shall be waterproof and have dimensions not to exceed 6 3/4" high by 4 5/8" wide by 1 3/4" deep. Inputs
for monitored information shall be from a J1939 databus or independent sensors. Outputs for engine
control shall be on the J1939 databus or engine specific wiring. Location of the governor and monitoring
display shall be at pump operator's panel
It shall monitor inputs and support audible and visual warning alarms for the following conditions:
• High Engine RPM
• High Transmission Temperature
• Low Battery Voltage (Engine Off)
• Low Battery Voltage (Engine Running)
• High Battery Voltage
• Low Engine Oil Pressure
• High Engine Coolant Temperature