Switch (Clockwise Rotation)
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| Illustration 1 | g00938200 |
Switch for Work Tool (Clockwise Rotation) | |
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| Illustration 2 | g00938239 |
Schematic for Switch (Clockwise Rotation) | |
The switch for clockwise rotation of the work tool is located on the left joystick. When the switch (button) on the joystick is pressed, a signal is sent to the relay for medium pressure (clockwise rotation). The relay sends power to the solenoid for medium pressure (clockwise rotation). The work tool will rotate in a clockwise direction. The switch is not serviceable. The joystick is serviceable. This switch functions only on machines that are equipped with System 11 Prime.
Switch (Counterclockwise Rotation)
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| Illustration 3 | g00938202 |
Switch (Counterclockwise Rotation) | |
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| Illustration 4 | g00938241 |
Schematic Switch (Counterclockwise Rotation) | |
The switch for counterclockwise rotation of the work tool is located on the right joystick. When the switch (button) on the joystick is pressed, a signal is sent to the relay for medium pressure (counterclockwise rotation). The relay sends power to the solenoid for medium pressure (counterclockwise rotation). The work tool will rotate in a counterclockwise direction. The switch is not serviceable. The joystick is serviceable. This switch functions only on machines that are equipped with System 11 Prime.
Pressure Switch (Implement)
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| Illustration 5 | g00775885 |
Pressure Switch (Implement) | |
The pressure switch (implement) sends a signal to the Controller at CONN172-17. This signal tells the Controller that the implement is operating.
Pressure Switches
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| Illustration 6 | g00776058 |
Work Tool Pressure Switch Joystick Pressure Switch Medium Pressure Switch | |
The three pressure switches are identical. Each of the three pressure switches tell the Controller that a specific portion of the hydraulic circuit is operating. The Controller will determine the parameters to use in order to control the hydraulic output.
The work tool pressure switch sends a signal to the Controller at CONN172-28. This switch senses an increase in pressure when the foot pedal for the work tool is pressed.
The joystick pressure switch sends a signal to the Controller at CONN172-29. This switch senses an increase in pressure when the joysticks that control the implements are operated.
The medium circuit pressure switch sends a signal to the Controller at CONN172-45. This switch senses an increase in pressure in the pilot line.
Hydraulic Lock Limit Switch (Neutral Start)
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| Illustration 7 | g00776837 |
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| Illustration 8 | g00820055 |
Cab (3) Hydraulic activation control lever (LOCKED position) | |
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| Illustration 9 | g00820057 |
Cab (3) Hydraulic activation control lever (UNLOCKED position) | |
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| Illustration 10 | g00681584 |
(3) Hydraulic activation control lever (4) Limit switch (5) Plunger (6) Box | |
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| Illustration 11 | g00773160 |
Cab (bottom view) (6) Box | |
Limit switch (4) and plunger (5) are contained in box (6). The limit switch is activated by hydraulic activation control lever (3) .
When hydraulic activation control lever (3) is shifted to the LOCKED position, the hydraulic activation solenoid is de-energized. Pilot oil does not flow to the pilot control valves. Thus, when the joysticks and/or the travel levers/pedals are operated, pilot oil will not flow to the main control valve. The cylinders or the motors are not activated.
Note: The engine will not start unless hydraulic activation control lever (3) is in the LOCKED position.
When hydraulic activation lever (3) is in the locked position, the neutral start relay will be active. This allows the starter to operate.
When hydraulic activation control lever (3) is placed in the UNLOCKED position, the hydraulic activation solenoid will be energized. This will also activate the hydraulic activation valve. Pilot oil flows to the pilot control valves. This allows full hydraulic operation of the machine.
Note: When the hydraulic activation lever is in the UNLOCKED position, the neutral start relay will not be active. The machine will not start. This will prevent the machine hydraulic system from operating unexpectedly.
Foot Switch (Hammer)
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| Illustration 12 | g00776884 |
Foot Switch (Hammer) | |
The device that is used in order to activate the hammer is the foot switch. When the foot switch is pressed, the switch sends power directly to the work tool solenoid valve. The hammer turns ON. When the switch is released, power to the work tool solenoid valve is discontinued. The hammer turns OFF. This switch is present only on machines that are equipped with System 3.
Direction Switch for One-Way/Two-Way Flow
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| Illustration 13 | g00779295 |
The switch for changing the hydraulic work tool circuit from one-way flow to two-way flow is located on the console. The switch is a rocker switch and the switch stays in one position until the operator changes the position. When one-way flow is selected, the switch sends a signal to the solenoid for one-way flow "(EC2)" and to the solenoid for one-way flow "(EC1)". No power is sent to the solenoid for two-way flow. In this configuration, hydraulic oil flow always travels to the work tool in one line and returns to the tank in a separate line. This switch is not connected to the Controller.
When two-way flow is selected, the switch sends power to the solenoid for two-way flow. No power is sent to either "EC1" or "EC2" solenoid for one-way flow. In this configuration, hydraulic oil flow can reverse in the hydraulic circuits. This switch functions only on machines that are equipped with System 11 Prime.