SHAFT-INPUT 5120917 - Caterpillar

Initiation or MIN Current Calibration
Illustration 1 g03593617
Illustration 2 g03593618Opening ET. Refer to Illustrations 1 and 2.Follow the on screen instructions to calibrate:
Lift
Lower
Dump
RackRemember that the coupler and the arms need room to move in each direction so place both at MID STROKE position before you start. This action will allow for easier spotting of movement which is required as part of the calibration. Once the automatic calibration is completed, you will notice that the Min solenoid currents have been adjusted.
Illustration 3 g03593639Open Electronic Technician (ET) into the Configuration screen, by selecting this key then selecting the Valve Calibration Currents tab shown in Illustration 3.Manual Adjustment of Min Current
After using the above calibration, if the "start to move" or slow implement performance still needs to be fine-tuned, then use as a guide. The Lift / Lower / Dump / Rack Min Solenoid currents can be adjusted. During this adjustment, always set the engine to Max speed. Engine speed has a significant effect on hydraulic performance.Note: The automatic implement solenoid calibration can always be repeated to restore factory performance. Or write the original values back into ET.To make the implement start to move with less joystick motion, Increase the Min current in 0.01 Amp steps. Test the change by moving the joystick a tiny amount and monitor the implement movement and how much joystick movement was given after each adjustment.To make the implement start smoother, or with more control, Decrease the Min current in 0.01 Amp steps. Test the change by moving the joystick a small amount and then monitor the implement movement. If the implements started with a bump, this situation should start to disappearFull Flow or MAX Current Calibration
The full flow calibration sets the implement valve current for when the joystick is fully stroked. This process is NOT automated in ET like the Initiation calibration. The Technician has to adjust the current going to the valve manually using ET, then record the cycle time of the function. The objective is to reach the quickest cycle time with the lowest amount of current. This process gives the smoothest response of the joystick while still achieving Max cylinder speed.If you have already used the automatic ET procedure to calibrate Min currents, values have already been updated for Lift, Lower, Dump, and Rack. For a cross reference to identify the correct functions in ET, refer to Table 1.
Table 1
Cross Reference to Identify Correct Functions in ET
Loader Lift Cylinder Extend Lift
Loader Lift Cylinder Retract Lower
Bucket Cylinder Extend Dump
Bucket Cylinder Retract Rack Back Full Flow Current Calibration Directions
Refer to "Valve Break-in and Preparation for New Valve or Spool", if not yet carried out.
Illustration 4 g03594036
Open ET (Electronic Technician) into the Configuration screen, by selecting this key then selecting the Valve Calibration Currents tab shown in Illustration 4.
Illustration 5 g03594906
Start with Lift by entering 1.0 Amp into the "Loader Lift Cylinder Extend Solenoid Current". Simply select that line by double clicking and writing in the new Current and then hitting the "Enter" key. Refer to Illustration 5.
Set the Park Brake.
Record