Installation Procedure

Tools Required 

J 33013-B  Hub and Drive Plate Remover/Installer. See Special Tools and Equipment .

1. Install the shaft key (4) into the hub key groove.

   Allow the key to project approximately 3.2 mm (0.125 in) out of the keyway (3). The shaft key curves slightly in order to provide an interference fit in the hub key groove.

2. Clean the following components:
   • The clutch plate
   • The clutch rotor (2)
3. Align the shaft key (4) with the shaft keyway (3).
   Fig 1: Aligning Shaft Key With Shaft Keyway

   Courtesy of GENERAL MOTORS CORP.
4. Place the clutch plate and the hub assembly (1) onto the compressor shaft.
5. Remove the forcing tip on the J 33013-B. 
   Fig 2: Removing Forcing Tip

   Courtesy of GENERAL MOTORS CORP.
6. Reverse the body direction on the center screw.
7. Install the J 33013-B  with the bearing.
8. Back off the body of the J 33013-B  as necessary in order to permit the center screw to be threaded onto the end of the compressor shaft.
9. Hold the center screw with a wrench.
10. Tighten the hex portion of the J 33013-B  body in order to press the hub onto the shaft.
11. Tighten the body several turns.
12. Remove the installer. Ensure that the shaft key remains in place in the keyway.
13. Install the clutch plate and hub assembly to the final position.

    Ensure that the air gap (2) between frictional surfaces of the clutch plate and clutch rotor measures within 0.50-0.76 mm (0.20-0.30 in).

14. Remove the J 33013-B. 
15. Verify proper positioning of the shaft key.

    Ensure that the shaft key is even with or slightly above the clutch hub.

16. Spin the pulley rotor by hand in order to verify that the rotor does not rub against the clutch drive plate.