345C MHPU Mobile Hydraulic Power Unit Hydraulic System Joystick Control - Calibrate Caterpillar

Calibration of the joystick thumbwheels can be performed by using two methods, calibration with the monitor and calibration with AVSpare Electronic Technician.

Calibration with Monitor

Note: Use the keys in the following illustration in order to calibrate the joystick slide control.

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(1) Up key (2) Right key (3) Home key (4) Main menu (5) Left key (6) Down key (7) Cancel key (8) OK key

Recalibration must be performed if any of the following components are replaced:

• The joystick slide control

• The tool controller

• The software

Place the backup switch in the AUTO position.

1. In order to access the "CALIBRATION" menu, enter the "SERVICE" mode on the monitor.

2. Enter the service mode. Refer to Testing and Adjusting, "Service Mode - Enter" for the Tool Control.

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Typical example of the "SERVICE" menu for the monitor

3. From the "SERVICE" menu, use the up key (1) or the down key (6) in order to move the highlighted line.

4. When the "CALIBRATIONS" menu option is highlighted, press the OK key (8). Refer to Illustration 2.

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5. After the OK key is pressed, the "CALIBRATIONS" screen will appear. From the "CALIBRATIONS" menu, highlight "LEVER / PEDAL / ATCH".

6. When the "LEVER / PEDAL / ATCH" option is highlighted, press the OK key (8). Refer to Illustration 3.

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7. After the OK key is pressed, the "LEVER / PEDAL / ATCH" screen should appear. Use the down key in order to highlight "MOD L THUMBWHEEL". Press the OK key (8) .

   Note: Illustration 4 shows that both the left thumb wheel and the right thumb wheel are highlighted. Only one of the options will be highlighted at a time.

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8. After the OK key is pressed, the monitor will begin to communicate to the ECM. When the ECM is ready, the next screen will automatically appear.

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9. Press the OK key (8) in order to start the process of calibration. After the OK key is pressed, all inputs will be disabled.

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10. Ensure that the thumb wheel is in the neutral position. Press OK key (8) .

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11. Move the thumb wheel to the FORWARD position. move the thumb wheel to the BACKWARD position.

12. Allow the inputs to return to the NEUTRAL position. Press the OK key (8) .

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13. Press the OK key (8). Pressing the OK key enables the machines inputs.

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14. The process of calibrating is completed. Press the cancel key (7) in order to exit the upper level screen.

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15. It is possible for an error to occur when you are calibrating. If an error occurs during the process of calibrating, restart the process of calibrating.

16. Repeat Steps 7 through Step 15 for the right thumb wheel.

Calibration with AVSpare Electronic Technician

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1. The calibrations initial start-up displays the following: "Left Joystick Thumbwheel Calibration", "Right Joystick Thumbwheel Calibration", "Left Attachment Pedal Calibration" and "Right Attachment Pedal Calibration". Perform one calibration at a time. Follow the instructions in order to perform the calibration.

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2. As the calibration is being performed, the active step will be displayed in bold text.

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3. After the completion of a step, a check will appear in the completed box. Press the "NEXT" button in order to continue to the next step of calibration.

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4. When the calibration is completed, the "CALIBRATION SUCCESSFUL" screen will be displayed.

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5. The "CALIBRATION UNSUCCESSFUL" screen and an error code will be displayed if the calibration is unsuccessful.