TM 5-2410-240-23-1
0010
Table 1. Machine ECM Inputs and Outputs - Continued.
0010
KEY
COMPONENT
DESCRIPTION
13
Parking Brake Solenoid
Refer to Hydraulic System (WP 0007) for information on
Powertrain Return Manifold - Description, Powertrain Return
Manifold - Operation.Refer to Brake/Deceleration Pedal
Position Sensor, Service Brake, and Parking Brake - Machine
ECM Inputs and Outputs and Hydraulic Oil Flow in this work
package.
14
Operator Presence Switch
The machine ECM determines if the operator is sitting in the
operator's seat using input from the operator presence switch.
15
Throttle Position Switch
The throttle position switch is located in the switch bank just to
the right of the operator's seat. The machine ECM determines
throttle position using input from this switch.
16
Brake/Deceleration Pedal Limit Switch
The brake/deceleration pedal limit switch is located in the
brake/deceleration pedal housing. Refer to Service Brake in
this work package for additional information.
17
Left Motor Speed Sensor
The machine ECM uses signals from the motor speed sensor
to calculate track speed and direction of rotation. The sensor
requires a regulated 8 volt power supply to operate. The sensor
provides two square wave signals that are 90 degrees out of
phase. The frequency remains proportional to motor speed and
the amplitude remains constant. Refer to Hydraulic System
(WP 0007) for information on Hydrostatic Drive Motor -
Operation. Refer to Forward Travel, Reverse Travel, Left Pivot
Turn, Left Counterrotate Turn, Right Pivot Turn, and Right
Counterrotate Turn in this work package for additional
information.
18
Right Motor Speed Sensor
The machine ECM uses signals from the motor speed sensor
to calculate track speed and direction of rotation. The sensor
requires a regulated 8 volt power supply to operate. The sensor
provides two square wave signals that are 90 degrees out of
phase. The frequency remains proportional to motor speed and
the amplitude remains constant. Refer to Hydraulic System
(WP 0007) for information on Hydrostatic Drive Motor -
Operation. Refer to Forward Travel, Reverse Travel, Left Pivot
Turn, Left Counterrotate Turn, Right Pivot Turn, and Right
Counterrotate Turn in this work package for additional
information.
19
Engine Speed Sensor
The machine ECM uses data from the engine speed sensor
when performing the underspeed function. The sensor
produces a signal that varies as engine speed changes. The
signal frequency is one pulse per flywheel tooth. Refer to
Forward Travel, Reverse Travel, Left Pivot Turn, Left
Counterrotate Turn, Right Pivot Turn, and Right Counterrotate
Turn in this work package for additional information.
0010-4
