Proposal Number PSDF #P09-0004
A momentary rocker switch shall be provided in the driver's switch panel for operation of the siren brake.
This switch shall be backlit with the legend "SIREN BRAKE".
GENERATOR
The generator unit shall be mounted in the dunnage area of the pump compartment.
An Onan model 6.0RBAA, 6 KW hydraulic generator system shall be supplied and installed on the
apparatus. The generator system shall be capable of producing 6 KW, single phase, 120/240- volts at 60
hertz regardless of engine RPM and shall be equipped with an automatic voltage regulator to maintain
nominal output voltage (120/240-volts AC) under varying generator loads. The generator shall be able to
remotely turn the system's full KW off and on without regard to engine RPM or electrical loads by the use of
multiple 12 VDC switches.
An integral oil to air heat exchanger shall cool the hydraulic fluid before being returned to the reservoir. A
hydraulic pump shall power the generator motor and is driven by a power takeoff on the vehicle
transmission. The pump shall maintain a constant flow and nominal generator frequency (60 Hz).
The hydraulic fluid reservoir shall have a three gallon capacity and shall be equipped with a full flow 6
micron oil filter, oil level sight glass, filter pressure cap, breather filter, and oil fill cap. The generator system
shall use Dextron III hydraulic fluid.
The generator display module shall display generator output voltage, frequency and current. The module
shall also display the temperature of the hydraulic fluid returning to the fluid reservoir and the number of
hours run (hour meter). The display module shall be located in the L 1 compartment adjacent to the
apparatus load center. The load center shall be connected to the generator system. A generator on/off switch
shall be located in the cab in a location convenient to the driver.
POWER TAKE OFF
A "Hot Shift" PTO unit shall be provided and installed. A switch to control the operation of the PTO shall
be installed in the cab in a location convenient to the driver.
120/240-VOLT AC NFPA LOAD TEST
Electrical System Testing.
The wiring and associated equipment shall be tested by the apparatus manufacturer or the installer of the line
voltage system.
The wiring and permanently connected devices and equipment shall be subjected to a dielectric voltage
withstand test of 900 volts for 1 minute. The test shall be conducted between live parts and the neutral
conductor, and between live parts and the vehicle frame with any switches in the circuit(s) closed. This test
shall be conducted after all body work has been completed. The dielectric tester shall have a 500 volt-
amperes (VA) or larger transformer, with a sinusoidal output voltage that can be verified.
Electrical polarity verification shall be made of all permanently wired equipment and receptacles in order to
determine that connections have been properly made.
Operational Test
The apparatus manufacturer shall perform the following operational test and shall certify that the power
