GLASS 9R4021 - Caterpillar

Machine Preparation
Park the machine on a smooth, level surface.
Shift the transmission direction control switch to the NEUTRAL position.
Lower the bucket or the work tool to the ground.
Engage the parking brake.
Place blocks in front of the wheels and behind the wheels.
Allow only authorized personnel on the machine. Keep unauthorized personnel off the machine and in clear sight of the operator.
Shut off the engine.Note: This calibration procedure can be performed without a running engine.
Turn the key start switch and the disconnect switch to the ON position.Note: This calibration can only be performed with Caterpillar Electronic Technician. Power to the ECM must be cycled in order for the calibration to take effect.Procedure for Adjusting the Ride Control Activation Speed in Caterpillar Electronic Technician (ET)
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.
Table 1
Required Tools    
Part Number     Description     Quantity    
139-4166     Data Link Cable     1    
7X-1425     Cable     1    
4C-6805     Adapter     1    
171-4400     Communication Adapter Tool     1    The software program that will be used for this test procedure is the Caterpillar Electronic Technician (ET). The Caterpillar Electronic Technician is a software program that can be used on an IBM-compatible personal computer.ReferenceFor more information about the use of Electronic Technician, refer to Testing and Adjusting, "Using Caterpillar Electronic Technician (ET) to Determine Diagnostic Codes" for the machine that is being serviced.
Illustration 1 g02434957
Location of the Service Connector
Connect the laptop computer to the service connector in the cab. The service connector is located to the left of the key start switch.Note: The Caterpillar Electronic Technician (ET) will allow the activation speed for the ride control to be adjusted in 1 km/h (0.6 mph) increments. The engagement speed may be adjusted between 2 km/h (1.2 mph) to 23 km/h (14.3 mph). The factory setting for the activation speed (forward) is 9.7 km/h (6.0 mph). The factory setting for the activation speed (reverse) is 3.2 km/h (2.0 mph).
Illustration 2 g01183350
Open the software program (ET). Select "Transmission" from the "ECM Selector" menu.
Illustration 3 g01183355
Select the "Service" menu item from the toolbar. Select the "Configuration" menu item.Note: Activation of the software for the ride control without installation of the hardware for the ride control will introduce faults for the ride control switch and the solenoid.
Illustration 4 g01183496
Highlight the option for the ride control activation speed on the configuration screen. Click on the "Change" button in the bottom left of the screen. Enter the new value for the setting of the engagement speed. Click the "OK" button.
Illustration 5 g01111261
Click the "Yes" button.
The value of the engagement speed for the ride control has been changed.
Close the software program (ET). Shut down the laptop computer. Disconnect the computer from the service connector in the cab.