Specifications

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shall have a 500 lb-ft rating. Clutch shall be of a time-tested design used in critical military
applications. (No exception).
PUMPING MODE Bidder Complies: Yes ( ) No ( )
Pump shall provide for both pump and roll mode and stationary pumping mode.
Stationary pumping mode shall be accomplished by stopping the vehicle, setting the parking brake and
engaging the water pump switch on the cab switch panel. The transmission shall shift to "Neutral"
range automatically when the parking brake is set. The "OK to Stationary Pump" indicator shall also
illuminate when the parking brake is set. There shall be an automatic opening tank to pump valve and
an automatic opening recirculation valve with the stationary mode so the operator does not have to
leave the cab. If the vehicle is equipped with a foam system or CAFS system, these systems shall be
engaged from the cab switch panel as well.
Pump and roll mode shall be accomplished by the use of the main pump and shall not require the use
of a secondary pump. The "OK to Pump & Roll" indicator shall be illuminated when the vehicle is in
first gear. If pump and roll is desired by the operator, the operator shall engage the "Pump & Roll"
and "Water Pump" switches on the cab switch panel. There shall be an automatic opening tank to
pump valve and an automatic opening recirculation valve with the pump and roll mode so the operator
does not have to leave the cab. The foot throttle shall be applied by the operator as needed. There
shall be a 1200 engine rpm limit when in the pump and roll mode.
Stopping pump and roll mode shall be accomplished by stopping the vehicle and setting the parking
brake. The "OK to Pump & Roll" indicator shall turn off, the "OK to Stationary Pump" indicator shall
illuminate and the transmission shall automatically shift to neutral.
Stopping the stationary pump mode shall be accomplished by pressing the "Water Pump" switch down
to disengage the pump.
PUMP SHIFT Bidder Complies: Yes ( ) No ( )
Pump shall be engaged in not more than two steps, by simply setting the parking brake, which shall
automatically put the transmission into neutral, and activating a rocker switch in the cab. Switches in
the cab shall also allow for water, foam, or CAFS if equipped, and activate the appropriate system to
preset parameters. The engagement shall provide simple two-step operation, enhance reliability, and
completely eliminate gear clash. The shift shall include the indicator lights as mandated by NFPA. A
direct override switch shall be located behind a door in the lower pump operator's panel. The switch
shall automatically disengage when the door is closed.
As the parking brake is applied, the pump panel throttle shall be activated and deactivate the chassis
foot throttle for stationary operation.
Pump and roll operation shall be available by releasing the parking brake with the pump in the
pumping mode. Releasing the parking brake shall activate the chassis foot throttle, and deactivate the
pump panel throttle. To protect from accidental pump overheating, the pump shall automatically
disengage when the truck transmission shifts into second gear.
TRANSMISSION LOCK UP Bidder Complies: Yes ( ) No ( )
Transmission lock up is not required as transmission shall automatically shift to neutral as soon as the
parking brake is set.
AUXILIARY COOLING SYSTEM Bidder Complies: Yes ( ) No ( )
A supplementary heat exchange cooling system shall be provided to allow the use of water from the
discharge side of the pump for cooling the engine water. A water-to-coolant heat exchanger shall be
used.
INTAKE RELIEF VALVE Bidder Complies: Yes ( ) No ( )
An Akron relief valve shall be installed on the suction side of the pump preset at 125 psig.