Specifications
Proposal Number PSDF #P09-0004
ENGINE BRAKE
A "JACOBS" Engine Brake shall be supplied.
The driver's dash shall include an OFF / LOW / HIGH engine brake control switch.
Activation of the engine brake shall occur at zero throttle position. The transmission ECU shall be
programmed to operate in the pre-select downshift mode to maximize the retarding power of the engine
brake.
The brake lights shall illuminate when the Jacobs Brake is in operation.
The Jacobs brake shall be inoperative when the chassis is in pump mode.
The "JACOBS" engine brake shall be covered under the standard five year Cummins engine warranty.
ENGINE FAST (HIGH) IDLE
The chassis shall be equipped with an Electronic Idle Control (EIC) for the electronic engine. Preset speed is
factory adjustable.
The fast idle provision shall only function when the parking brake is set and the transmission is in neutral.
Manual selection of the fast idle shall be controlled by a driver's momentary switch.
Automatic activation of the fast idle shall occur when a low voltage condition exists, the truck is in neutral
and the parking brakes are applied.
Cancellation of the fast idle shall be achieved by resetting the manual switch or by depressing the service
brake pedal.
ENGINE COOLANT FILTER
A precharged spin-on corrosion inhibitor/water filter shall be installed in the cooling system. Shut off valves
shall be supplied on both sides of the filter to facilitate element changing with out loss of cooling system
fluid.
AUXILIARY ENGINE COOLER
The cooling system shall have one (1) SENDURE auxiliary engine cooler mounted in the upper radiator
water pipe. The apparatus shall have the fire pump water circulated to the cooler from a valve located on the
apparatus pump panel.
ENGINE COOLANT RADIATOR
The engine coolant radiator shall have sufficient capacity to perform under the engine manufacturer
installation requirements. The chassis manufacturer shall demonstrate the ability to meet this requirement
with the submittal of an approved EPQ to the fire department for the apparatus.
Page 16