CARRIER A. 1T0621 - Caterpillar

Illustration 7 g03490356
Slide the electrical swivel harness through the hydraulic swivel. Tighten the mounting bolts to 12 N m (106 lb in).
Connect swivel harness to machine harness and fix the harness in place with cable straps.Note: When installing the swivel make sure the fork on the swivel is catching the reaction bar, to avoid rotation of the top end of the swivel.
Install the wires into the connector or connectors following the below instructions.
Table 2
Connector PIN Layout for 377-1953 Swivel Gp ( 3 Pin)
( 364-2800 Swivel Gp )    
Location in Pin    Wire Description    Wire Marked    Connection to Speed Sensor    
A     Green and Yellow     GN/YL-18     BK-16    
B     Black     1-BK-18     OR-18    
C     Black     2-BK-18     YL-18    
Table 3
Connector PIN Layout for 377-1954 Swivel Gp ( 7 Pin)
( 364-2801 Swivel Gp    
Location in Pin    Wire Description    Wire Marked    
A     Green and Yellow     GN/YL-18    
B     Black     5-BK-18    
C     Black     6-BK-18    
1     Black     1-BK-18    
2     Black     2-BK-18    
3     Black     3-BK-18    
4     Black     4-BK-18    
Illustration 8 g03490563
Illustration 9 g03490417
Grasp crimped contact approximately 25.2 mm (1.0 inch) behind the contact barrel.
Illustration 10 g03490016
Hold the connector facing the rear grommet.
Illustration 11 g03490442
Push the contact straight into the connector grommet until a click is felt. A slight tug will confirm that the wire is properly locked in place.
Illustration 12 g03489856
Once all the contacts are in place, insert the wedge with the arrow pointing towards the exterior locking mechanism. The wedge will snap into place. Rectangular wedges are not oriented and may go in either way.Note: The receptacle is shown. Use the same procedure for the plug.
Illustration 13 g03489496
Route the swivel harness and connect to the undercarriage harness. Use a cable strap to hold the harness in place.Testing the Rework for 377-1953 Swivel Gp (3 Pin)
Start the machine and lower the left console.
Raise the wheels off the ground and depress the travel pedal or travel the machine. Check the monitor to insure a speed reading is shown. If no speed is shown, verify the wiring on the three pin connector.Note: Select second gear when checking for the speed display or switch the display to manual selection of ground speed in the monitor. Then first gear can be used for the test as well.Testing the Rework for 377-1954 Swivel Gp (7 Pin)
Start the machine and lower the left console.
Raise the wheels off the ground and depress the travel pedal or travel the machine. Check the monitor to insure a speed reading is shown. If no speed is shown, verify the wiring on the three pin connector.
Raise and lower the stabilizers. On the left console lock the front left stabilizer and then try lowering the stabilizer with the lever. Verify that the left front stabilizer is locked and does not lower. Then lock