Remove the center bolt (A) while holding the armature plate (B) with a commercially available A/C clutch holder (C).
2.
Remove the armature plate (A) and shim(s) (B).
NOTE:
The shims are available in three thicknesses: 0.1 mm, 0.3 mm, and 0.5 mm.
Do not pry on the armature plate with screwdrivers or similar tools. Prying damages the armature plate and the pulley.
Inspect the armature plate and pulley friction surfaces for wear. If there is excessive wear, roughness, or scoring, replace the clutch set.
If compressor oil is found, replace the A/C compressor.
A leaking compressor front shaft seal should be inspected at this step.
2.
A/C Compressor Pulley - Remove
1.
Remove the snap ring B with the snap ring pliers.
2.
Remove the pulley (A).
NOTE:
Do not hammer or pry on the pulley to remove it. Using a hammer damages the A/C compressor. If the pulley is difficult to remove, use a commercially available pulley removing tool. Make sure the jaws of the removing tool engage the back face of the pulley, not the pulley grooves.
Be careful not to damage the pulley or the A/C compressor.
3.
A/C Compressor Field Coil - Remove
1.
Remove the bracket (B).
2.
Remove the field coil ground terminal (C), and the bracket (D).
3.
Remove the snap ring A with snap ring pliers.
4.
Remove the field coil (E). Be careful not to damage the field coil or the A/C compressor.
NOTE: Inspect the friction surfaces and the compressor shaft hub for excess oil. If excess oil is present, and it is not from the engine or other system, then the compressor shaft seal is leaking. Replace the A/C compressor.
4.
All Removed Parts - Install
1.
Install the parts in the reverse order of removal, and note these items:
Install the field coil with the wire side facing down, and align the boss on the field coil with the hole in the A/C compressor.
If the clutch surface is oil soaked, check the compressor front seal for leakage. Installing a new clutch assembly on a leaking compressor will damage the new clutch assembly friction surfaces.
Clean the pulley and the A/C compressor friction surfaces with contact cleaner or other non-petroleum solvent.
Install new snap rings, note the installation direction, and make sure they are fully seated in the grooves.
Make sure that the pulley turns smoothly after it is reassembled.
Route and clamp the wires properly to prevent damage by the pulley.
When removing the armature plate, place a trial stack of shims, 1mm total thickness, on the A/C compressor shaft. Install the pressure plate, and check its clearance. If the clearance is not within specifications, add or subtract shims as needed.
After reinstallation, cycle the A/C compressor clutch approximately 20 times by running the engine at 1,500?2,000 rpm and setting the A/C system to MAX COOL. This procedure seats the clutch sliding surfaces, and increases clutch torque capacity.
