Specifications

Loveland Fire/Rescue
Pumper
Production Specification
SVI #769 Page 33 of 125 June 17, 2010
..\4) Pricing & Change Orders\Production Change Order.pdf
TRANSMISSION FEATURE PROGRAMMING
The EVS group package number 127 shall contain the 198 vocational package in consideration of the duty of this
apparatus as a Pumper. This package shall incorporate an automatic neutral with selector override. This feature
commands the transmission to neutral when the park brake is applied, regardless of drive range requested on the shift
selector. This requires re-selecting drive range to shift out of neutral for the override.
This package shall be coupled with the use of a split shaft PTO and incorporate pumping circuits. These circuits shall be
used allowing the vehicle to operate in the fourth range lockup while operating the pump mode due to the 1 to 1 ratio
through the transmission, therefore the output speed of the engine is the input speed to the pump. The pump output can
be easily calculated by using this input speed and the drive ratio of the pump itself to rate the gallons of water the pump
can provide.
An eight (8) pin Delphi connector will be provided next to the steering column connector. This will contain the following
input/output circuits to the transmission control module.
Function ID Description Wire assignment
C PTO Request 142
J Fire Truck Pump Mode (4th Lockup) 122 / 123
C Range Indicator 145 (4th)
G PTO Enable Output 130
Signal Return 103
ELECTRONIC TRANSMISSION OIL LEVEL INDICATOR
The transmission fluid shall be monitored electronically and shall send a signal to activate a warning in the instrument
panel when levels fall below normal.
TRANSMISSION SHIFT SELECTOR
An Allison pressure sensitive range selector touch pad shall be provided and located to the right of the driver within clear
view and easy reach. The shift selector shall provide a prognostic indicator (wrench symbol) on the digital display between
the selected and attained indicators. The prognostics monitor various operating parameters to determine and shall alert
you when a specific maintenance function is required.
TRANSMISSION RETARDER CONTROL
The Allison transmission retarder control shall be modulated by a one-third at 0% throttle and two- thirds brake pedal
actuation and shall include a virtual button on the multiplex display. The activation of the retarder shall activate the brake
lights and shall be inactive during pump mode.
TRANSMISSION PRE-SELECT WITH AUXILIARY BRAKE
When the auxiliary brake is engaged, the transmission shall automatically shift to second gear to decrease the rate of
speed assisting the secondary braking system and slowing the vehicle.