Minor Compressor Repair Procedures

Remove or Disconnect

Tool Required:
J 34878 Pressure Plate Remover

Removing Pressure Plate Nut:

1. Pressure plate nut and washer from compressor drive shaft.

Installing J 34878:

2. Pressure plate from compressor drive shaft using a J 34878.

Removing Snap Ring:

3. Snap ring and shim, using the appropriate snap ring pliers.

4. A/C compressor clutch pulley from compressor. Tap off with plastic hammer if necessary.

NOTICE: Be careful not to damage pulley when tapping it off.

5. Clutch coil wire retainer from compressor housing (one screw).
6. Clutch coil from compressor.

Inspect
1. Pressure plate for wear and scoring. Replace if necessary.
2. A/C compressor clutch pulley for wear and scoring. Replace if necessary.

Measure
Tool Required:
J 39200 Digital Multimeter

Inspecting Compressor Clutch Coil Resistance:

^ Clutch coil resistance using a J 39200. If resistance is not 3.0 to 3.4 ohms, replace the clutch coil.

Install or Connect

1. Clutch coil to compressor.
2. Clutch coil wiring retainer to compressor housing; secure with one screw.
3. A/C compressor clutch pulley to compressor; secure with snap ring and shim.
4. Pressure plate to compressor drive shaft.

Measure

Measuring Pressure Plate Clearance:

^ Clearance between clutch pulley and pressure plate. If clearance is not 0.4 to 0.7 mm (0.016 to 0.028-inch). Remove the pressure plate and add or remove shim(s) as necessary.

5. Pressure Plate Washer and nut to compressor drive shaft.

Tighten
^ Pressure plate nut to 16 Nm (12 lb.ft.).