Compressor Clutch: Service and Repair
CLUTCH AND CLUTCH FIELD COILSpecial Tool(s):
Special Tool(s)
Removal
All vehicles
1. Remove the A/C compressor.
2. Remove the A/C clutch disc and hub bolt.
1. Hold the A/C clutch disc and hub with the special tool.
2. Remove the A/C clutch disc and hub bolt.
3. Remove the A/C clutch disc and hub.
4. Remove the A/C compressor pulley snap ring.
5. Remove the A/C compressor pulley.
1. Install the special tool.
2. Remove the A/C compressor pulley.
FS18 compressors only
6. CAUTION: Do not use air tools. The A/C clutch field coil can be easily damaged.
Remove the A/C clutch field coil.
1. Install the special tool.
2. Install the special tool.
3. Remove the A/C clutch field coil.
FS20 compressors only
7. Remove the A/C clutch field coil snap ring.
8. Remove the A/C clutch field coil.
Installation
NOTE: If installing a new A/C compressor, the A/C clutch components should be reused unless obvious signs of damage are found. If excessive grooving is found, a new A/C clutch disc and hub and A/C compressor pulley must be installed together. Otherwise, each component can be installed individually where needed.
All vehicles
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 or A/C compressor pulley 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.
FS18 compressors only
3. CAUTION: Do not use air tools. The A/C clutch field coil can be easily damaged.
Install the A/C clutch field coil.
1. Place the A/C clutch field coil on the A/C compressor with the A/C clutch field coil electrical connector correctly positioned.
2. Place the special tool on the A/C clutch field coil.
3. Place the special tool 412-065 on the special tool 412-078.
4. Use the special tool to install the A/C clutch field coil.
FS20 compressors only
4. Install the A/C clutch field coil.
5. Install the A/C clutch field coil snap ring.
All vehicles
6. NOTE: The A/C clutch pulley is a tight fit on the A/C compressor head. It must be correctly aligned during installation.
Install the A/C clutch pulley.
7. Install the A/C clutch 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 assembly.
10. Install the A/C clutch disc and hub bolt.
1. Hold the A/C clutch disc and hub with the special tool.
2. Install the A/C clutch disc and hub bolt.
- Tighten to 13 Nm (10 lb-ft).
11. Measure and adjust the clutch air gap by removing or adding A/C clutch hub spacers.
12. Install the A/C compressor.