PULLEY 2741931 - Caterpillar

Illustration 1 g01099221
Transmission Clutch Solenoid Modulating Valve (1) Number 1 clutch solenoid modulating valve (reverse) (2) Number 2 clutch solenoid modulating valve (forward) (3) Number 3 clutch solenoid modulating valve (fourth speed) (4) Number 4 clutch solenoid modulating valve (third speed) (5) Number 5 clutch solenoid modulating valve (second speed) (6) Number 6 clutch solenoid modulating valve (first speed)
If a new clutch solenoid modulating valve was installed, shift the transmission for at least 12 times into a speed or a direction that uses the clutch solenoid modulating valve. Refer to Illustration 1 in order to identify the clutch solenoid modulating valve and the corresponding clutch. Allow sufficient time for the corresponding clutch to be fully pressurized.
Park the machine on a smooth, level surface.
Illustration 2 g00867111
(7) Transmission upshift switch (8) Transmission downshift switch (9) Transmission direction control switch
Shift transmission direction control switch (9) to the NEUTRAL position.
Lower the blade or 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.
Allow only authorized personnel on the machine. Keep unauthorized personnel off the machine and in clear sight of the operator.Procedure for Transmission Clutch Fill Calibration
Table 1
Required Tools    
Part Number     Description     Quantity    
139-4166 or 7X-1570     Data Link Cable     1    
7X-1425     Cable     1    
4C-6805     Adapter     1    
7X-1700 or 171-4400     Communication Adapter Tool     1    Note: If a new clutch solenoid modulating valve was installed, shift the transmission for at least 12 times into a speed or a direction that uses the clutch solenoid modulating valve. Allow sufficient time for the corresponding clutch to be fully pressurized.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.Reference: For more information about the use of Electronic Technician, refer to Troubleshooting, "Using Caterpillar Electronic Technician (ET) to Determine Diagnostic Codes" for the machine that is being serviced.
Connect the laptop computer to the service connector in the cab. The service connector is located at the rear of the cab to the right of the operator's station.
Illustration 3 g01108832
Typical view
Open the software program (ET). Select the "Transmission 824H", "Transmission 825H", or "Transmission 826H" menu item.
Illustration 4 g01108836
Typical view
Select the "Service" menu in order to begin the calibration procedure. Then select "Calibrations". A second menu will be displayed. Select "Transmission Fill Calibration" from the second menu.
Illustration 5 g01108909
Typical view
The next screen is the initial calibration screen. Once "Transmission Fill Calibration" has been selected, the screen displays the incremental instructions for calibration. The top display area displays status parameters that are monitored during the calibration. The middle display area displays information about the status of the calibration. The bottom display area displays incremental instructions for the calibration. The step that currently needs to be carried out is in bold text. All other steps