Specifications

ENGINE WARRANTY
The Cummins engine shall be warranted for a period of five (5) years or 100,000 miles, whichever
occurs first.
REMOTE THROTTLE HARNESS
An apparatus interface wiring harness for the engine and transmission pump interlocks shall be supplied
with the chassis. The harness shall include a connector for connection to a chassis pump panel harness
supplied by the body builder and shall terminate in the left frame rail behind the cab for connection by
the body builder. The harness shall include circuits deemed for a pump panel and shall contain circuits
for a hand throttle, and a multiplexed gauge. Separate circuits shall also be included for a pump control
switch, “Pump Engaged” and “OK to Pump” indicator lights, open compartment ground, start signal,
park brake ground, ignition signal, master power, clean power, customer ignition, air horn solenoid
switch, high idle switch and high idle indicator light.
ENGINE PROGRAMMING REMOTE THROTTLE
The engine ECM discreet wire remote throttle circuit will be turned on for use with a discreet wire based
pump controller.
ENGINE PROGRAMMING IDLE SPEED
The engine low idle speed will be programmed at 700 rpm.
ENGINE FAN DRIVE
The engine cooling system fan shall incorporate a thermostatically controlled, Horton clutched type fan
drive.
When the clutched fan is disengaged it shall facilitate improved vehicle performance, cab heating in cold
climates, and fuel economy. The fan clutch design shall be fail safe so that if the clutch drive fails the
fan shall engage to prevent engine overheating due to the fan clutch failure.
ENGINE COOLING SYSTEM
There shall be a heavy-duty aluminum cooling system designed to meet the demands of the emergency
response industry. The cooling system shall have the capacity to keep the engine properly cooled under
all conditions of road and pumping operations. The cooling system shall be designed and tested to meet
or exceed the requirements specified by the engine and transmission manufacturer and all EPA
requirements. The complete cooling system shall be mounted to isolate the entire system from
vibration or stress. The individual cores of the cooling system shall be mounted in a manner to allow
expansion and contraction at various rates without inducing stress into the adjoining cores.