PISTON 6E1328 - Caterpillar

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Portable hydraulic tester (flow meter) (5) Load valve
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Hold the left joystick in the FULL BACKWARDS position. Turn load valve (5) on the flow meter until the pressure reading is 15000 kPa (2176 psi). Adjust the flow rate using the left and right arrows on the monitor until the flow meter reads 300 L/min (79.3 US gpm). Press the OK key.Note: Adjusting the load valve on the flow meter to maintain the specified pressure must be done after the flow rate is changed.Note: The joystick must be held in the FULL BACKWARDS position for the duration of the test.
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Release the left joystick back to the NEUTRAL position.
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All levers become enabled. Press the OK key.
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For machines configured with a One-Way flow system, if calibration was successful and no errors occurred, the display will indicate that the calibration is complete. If the machine is configured with a Two-Way flow system, proceed to Step 13.
Close the stop valves on each side of the stick.
Release pressure in the hydraulic system. Refer to Testing and Adjusting, "System Pressure - Release".
Reverse the flow meter lines location on the stop valves for Two-Way flow.Note: To calibrate the retraction of the attachment control valve, the direction of oil flow through system will be reversed. To protect the flow meter from damage, the orientation of the flow meter must also be reversed.
Open the stop valves on each side of the stick.
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Close the ball valves on the main control valve for Two-Way flow. Refer to Illustration 6 for the appropriate setting.
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Set the hydraulic lock lever to the UNLOCK position.
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All levers become enabled. Press the OK key.
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Hold the left joystick in the FULL BACKWARDS position. Turn load valve (5) on the flow meter until the pressure reading is 15000 kPa (2176 psi). Adjust the flow rate using the left and right arrows on the monitor until the flow meter reads 300 L/min (79.3 US gpm). Press the OK key.Note: Adjusting the load valve on the flow meter to maintain the specified pressure must be done after the flow rate is changed.Note: The joystick must be held in the FULL BACKWARDS position for the duration of the test.
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Release the left joystick back to the NEUTRAL position.
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All levers become enabled. Press the OK key.
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If calibration was successful and no errors occurred, the display will indicate that the calibration is complete.
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The "Error" screen will be displayed on the monitor if an error occurs. The process of calibration will not be saved and the process must be restarted.