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RING-RETAINING 4646345 - Caterpillar

4646345 RING-RETAINING Caterpillar parts RING
Alternative (cross code) number:
Caterpillar 4646345 RING-RETAINING
Weight: 0.88 pounds 0 kg.

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Table 2
Switch Operation    
Normally Open Contact J1-42     Normally Closed Contact J1-41     Switch Status    
Open     Ground     Off
The speed is not saved. The speed is not recalled.    
Ground     Open     On
The speed is saved. The speed is recalled.    Horn
Illustration 4 g01339852
This switch activates the horn.Sensors
Sensors provide information to the ECM about the intent of the operator or changing conditions. The sensor signal changes proportionally to the changing of operator input or changing conditions. The following types of sensor signals are used by the hydrostatic transmission control.Frequency - The sensor produces a signal and the frequency (Hz) varies as the condition changes.Pulse width modulated - The sensor produces a signal. The duty cycle of the signal varies as the condition changes. The frequency of this signal is constant.Analog - The ECM measures the voltage that is associated to a specific condition of the control.Thumb Switch
Illustration 5 g01339854
The ECM increases the desired speed of the machine when the thumb switch is moved toward the operator. The ECM decreases the desired speed of the machine when the thumb switch is moved away from the operator.Hystat Joystick
Illustration 6 g01338124
The electrohydraulic control system has a two axis joystick as the operator interface. The joystick is used in order to supply direction and steering commands. The longitudinal displacement of the joystick will control the forward and the reverse direction of the machine. The lateral displacement of the joystick will provide the steering control. The steering sensor of the joystick (1) provides a 500 Hz PWM signal and the joystick F/N/R sensor (2) provides a 500 Hz PWM signal. The signal is proportional to the joystick sensor position for each axis. The range of the sensor in the longitudinal axis is nominal at 27% at the full forward position to 3% at the full reverse position. The range of the sensor in the lateral axis is nominal at 3% at the full left position to 7% at the full right position.Speed Sensor (Engine)
Illustration 7 g00288428
Speed Sensor (Engine)The engine speed sensor is an input to the ECM. The sensor tells the ECM the speed of the engine. The engine sensor produces a signal. The frequency of the sensor signal will vary as the engine speed changes. The signal frequency is one pulse per tooth on the flywheel. The ECM uses information from the engine speed sensor and the position sensor for the decelerator pedal in order to perform the underspeed function. Speed Sensors
Speed Sensor (Left Track)Speed Sensor (Right Track)
Illustration 8 g00787531
A track speed sensor is integrated into the output stage of the hydrostatic drive motors. The sensor provides two square wave signals that are 90 degrees out-of-phase and the frequency remains proportional to motor speed while the amplitude remains constant. These signals are used in order to calculate both the track speed and the direction of rotation. The sensors require a regulated 8 volt power supply. Pedal Position Sensors
Brake Pedal and Deceleration Pedal
Illustration 9 g00904530
The position sensors inform the ECM of the position

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