Specifications

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.
A transmission interface connector shall be provided in the cab. This package shall contain the following
input/output circuits to the transmission control module. The Gen V-E transmission shall include
prognostic diagnostic capabilities. These capabilities shall include the monitoring of the fluid life, filter
change indication, and transmission clutch maintenance.
Function ID Description Wire assignment
Inputs
C PTO Request 142
J Fire Truck Pump Mode (4th Lockup) 122 / 123
Outputs
C Range Indicator 145 (4th)
G PTO Enable Output 130
Signal Return 103
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 have a graphical Vacuum Florescent
Display (VFD) capable of displaying two lines of text. The shift selector shall provide mode indication
and a prognostic indicator (wrench symbol) on the digital display. The prognostics monitor various
operating parameters and shall alert you when a specific maintenance function is required.
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 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.
TRANSMISSION COOLING SYSTEM
The transmission shall include a water to oil cooler system located in the cooling loop between the
radiator and the engine. The transmission cooling system shall meet all transmission manufacturer
requirements. The transmission cooling system shall feature continuous flow of engine bypass water to
maintain uninterrupted transmission cooling.
TRANSMISSION DRAIN PLUG