FRAME AS 2520440 - Caterpillar

Illustration 1 g00881862
Left Brake Pedal (1) Released pedal position (2) Maximum pedal travel (3) Left brake pedal position sensorThe calibration of left brake pedal position sensor (3) is used in order to determine the full range of travel of the deceleration pedal. Brake pressure begins to be generated on the rear axle when the left brake pedal travels past the initial brake pressure point.The left brake pedal position sensor must be calibrated if any of the following conditions have occurred:
New power train software is installed.
The left brake pedal position sensor is installed or adjusted.
The service brake control valve is adjusted.
A new service brake control valve is installed.Reference: For more information on the Caterpillar Monitoring System, refer to the Service Manual module Systems Operation, "Monitoring System (Power Train Functions)" for the machine that is being serviced.Reference: For more information on the Caterpillar Monitoring System, refer to the Service Manual module Systems Operation, Testing and Adjusting, SENR1394, "Caterpillar Monitoring System".Machine Preparation for Calibration
Personal injury or death can result from sudden machine movement.Sudden movement of the machine can cause injury to persons on or near the machine.Prevent possible injury by performing the procedure that follows before working on the machine.
Park the machine on a smooth, level surface.
Shift the transmission direction control switch to the NEUTRAL position.
Lower the work tool to the ground.
Engage the parking brake.
Place blocks in front of the wheels and behind the wheels.
Install the steering frame lock.
Shut off the engine.Note: This calibration procedure can be performed without a running engine.
Allow only authorized personnel on the machine. Keep unauthorized personnel off the machine and in clear sight of the operator.Calibration Procedure
Note: The steps of this procedure must be performed exactly, as described below. This procedure may terminate if any unknown functions or any unexpected functions are activated. This procedure may terminate if a fault (CID FMI) is present. Do not move any switch positions, any levers or any pedals unless you are instructed differently.
Make sure that the transmission direction control switch is in the NEUTRAL position.
Make sure that the parking brake is engaged.
Table 1
Calibration Submodes for the Left Brake Pedal Position Sensor    
Submode 29     Calibration of the Decelerator Pedal Sensor    
Submode 30     Adjustment of the Neutralization Setpoint    
Use the 4C-8195 Control Service Tool to enter Transmission Calibration Mode (8). Then enter the submode 29. Enter the submode by using the "SCROLL" switch.
Use the INCREMENT (+) and DECREMENT (-) positions of the "CLEAR" switch in order to start the calibration procedure.
The Caterpillar Monitoring System will display "29 C00". Fully release the left brake pedal and then press the INCREMENT (+) switch. The Caterpillar Monitoring System should now display "29 C01".
Fully depress the left brake pedal and then press the INCREMENT (+) switch. The Caterpillar Monitoring System should now display "29 C02".
Fully release the left brake pedal and then toggle the INCREMENT (+) switch. The Caterpillar Monitoring System should now display "29 ---" if the calibration was successful. The display will read "29 EXX" if the calibration was