SPECIAL AR 3138744 - Caterpillar

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.
Connect the laptop computer to the service connector in the cab.
Illustration 1 g01261519
Typical example of ET menu
Open the software program (ET). Select the engine ECM from the "ECM Selector" menu.
Illustration 2 g02045894
Typical example of ET menu
Select the "Information" menu item from the toolbar. Select the "Status" menu item.
Illustration 3 g01148913
Location for the shim
Place a 1.55 mm (0.062 inch) shim between the pedal stop and the right hand brake pedal.
Illustration 4 g02045895
Typical example of ET menu"Depressed" status of the brake pedal
Illustration 5 g02045896
Typical example of ET menu"Released" status of the brake pedal
Select "Throttle Lock" in ET. If "Depressed" appears in the "Brake Pedal" row under the "Value" column, proceed to Step 10. If "Released" appears, proceed to Step 6.
Illustration 6 g02045897
(1) Limit switch for throttle lock deactivation (2) Adjustment plate (3) Adjustment screw
Remove the three screws from the cover plate on the right hand brake pedal switch in order to access adjustment screw (3) .
Place a 1.55 mm (0.062 inch) shim between the pedal stop and the right hand brake pedal.
Loosen adjustment screw (3). Adjust adjustment plate (2) until "Depressed" appears in the "Brake Pedal" row under the "Value" column in ET. Then, torque adjustment screw (3) to 1.4 0.3 N m (12 3 lb in).
Remove the shim from the pedal stop.
Place a 0.775 mm (0.031 inch) shim between the pedal stop and the right hand brake pedal.
Verify that "Released" appears in the "Brake Pedal" row under the "Value" column in ET. If "Released" now appears, proceed to Step 12. If "Released" does not appear, repeat Step 6 through Step 10.
Remove the shim from the pedal stop.
If the cover plate was removed, replace the cover plate with the three screws.