Compressor Clutch: Service and Repair

Clutch and Clutch Field Coil













Removal

1. Remove the A/C compressor. For additional information, refer to Air Conditioning (A/C) Compressor Service and Repair.

2. Remove the A/C clutch disc and hub bolt.
1. Using the Compressor Clutch Holding Tool, hold the A/C clutch disc and hub.

2. Remove the A/C clutch disc and hub bolt.






3. Remove the A/C clutch disc and hub.

4. Remove the A/C clutch disc and hub spacer(s).

5. Remove the A/C compressor pulley snap ring.

6. NOTICE: Do not use air tools. Damage to the Air Conditioning (A/C) clutch pulley or A/C compressor may result.

Remove the A/C compressor pulley.
1. Install the Compressor Pulley Remover.

2. Using the Compressor Pulley Remover, remove the A/C compressor pulley.






7. Remove the A/C clutch field coil snap ring.

8. Remove the A/C clutch field coil electrical connector bracket screw.

9. Remove the A/C clutch field coil.

Installation

NOTE: A new A/C compressor may come equipped with a clutch and pulley. If not, the A/C clutch components should be reused unless obvious signs of damage are found. If excessive grooving is found on the clutch friction surface, a new A/C clutch disc and hub and a new A/C compressor pulley must be installed together. Otherwise, each component may be installed individually where needed.

1. Visually inspect the A/C clutch disc and hub, A/C compressor pulley and A/C clutch field coil for damage.
- Inspect for physical damage, including cracked or melted components or discoloration due to excessive heat.

- Inspect for excessive wear, including grooving in the A/C clutch disc and hub friction surface or A/C compressor pulley friction surface that is more than fingernail depth.

- Inspect for roughness in the A/C compressor pulley bearing.


2. Clean the A/C clutch field coil and pulley mounting surfaces.

3. Install the A/C clutch field coil.

4. Install the A/C clutch field coil snap ring with the bevel side up.

5. Install the A/C clutch field coil electrical connector bracket screw.

6. NOTICE: To prevent Air Conditioning (A/C) compressor pulley damage, apply pressure to the inner bearing race only, or the inner and outer bearing races simultaneously.

NOTE: The A/C compressor pulley is a tight fit on the A/C compressor. It must be correctly aligned during installation. The A/C compressor pulley can be tapped lightly with a rubber mallet to assist installation if necessary.
Install the A/C compressor pulley.


7. Install the A/C compressor pulley snap ring with the bevel side out.

8. Place one nominal thickness A/C clutch disc and hub spacer inside the clutch hub spline opening.

9. Install the A/C clutch disc and hub.

10. Using the Compressor Clutch Holding Tool, install the A/C compressor clutch disc and hub bolt.
1. Hold the A/C clutch disc and hub with the Compressor Clutch Holding Tool.

2. Tighten to 14 Nm (124 lb-in).






11. Measure and adjust the clutch air gap.
- Measure the clutch air gap at 3 equally spaced locations around the A/C compressor pulley and calculate the average.

- Adjust the clutch air gap by removing or adding A/C clutch disc and hub spacers.






12. Install the A/C compressor. For additional information, refer to Air Conditioning (A/C) Compressor Service and Repair.