Clutch

Compressor Components:

Remove or Disconnect

Tool Required:
J 4245 Internal Snap Ring Pliers
J 6435 External Snap Ring Pliers
J 8433 Puller Set
J 37825 Puller Plate Assembly
J 37827 Puller Pilot
J 37828 Puller Fingers
J 37872 Spanner Wrench

Removing The Nut:

- Insert the two pins of the J 37872 into any two threaded holes of the clutch front plate (2). Hold the clutch plate stationary.

1. Hex nut using a 19 mm socket.

Removing The Clutch Plate:

2. Clutch front plate using J 37825.
- Align the puller center bolt to the compressor shaft.
- Thumb tighten the three puller bolts into the threaded holes.
- Turn the center bolt to the right with the socket wrench until the front plate is loosened.

Removing The Shaft Key:

3. Shaft key (27) by lightly tapping it loose with a slot screw driver and hammer.

Removing The Internal Snap Ring:

4. Internal bearing snap ring (4) with J 4245.

5. External front housing snap ring with J 6435.

6. Rotor pulley assembly.
- Insert J 37828 into the snap ring groove.

Removing The Rotor Pulley:

- Insert J 37827 over the exposed shaft.
- Align the thumb head bolts of J 8433 to the puller fingers and tighten.

Removing The Rotor Pulley (2 Of 2):

- Turn the puller center Dolt to the right with a socket wrench until the rotor pulley is free.

7. Field coil (10).
- Loosen the coil lead wire from the clip on top of the compressor front housing.

Removing The Coil Snap Ring:

- Remove the snap ring (7).
- Remove the coil.

Install or Connect

Tools Required:
J 4245 Internal Snap Ring Pliers
J 6435 External Snap Ring Pliers
J 29640 Shaft Protector
J 29886 Driver Handle
J 37872 Spanner Wrench
J 38467 Bearing Remover and Installer

1. Field coil and snap ring retainer
- The coil flange protrusions must match the hole in the front housing to prevent coil movement and to correctly place the lead wire.

2. Rotor pulley (5) to the front housing hub and align.
- Place J 38467 into the bearing cavity with the outer edge on the rotor bearing outer race.

Installing The Rotor Pulley:

- Place J 29886 into the ring.
- Use a hammer to tap the end 29886 to guide the rotor until it bottoms out against the compressor front housing hub. Listen for a distinct change of sound during the tapping process.

3. Internal bearing snap ring with J 4245.

4. External front housing snap ring with 6435.

5. Shaft key (27).

6. Front plate assembly.
- Align the front plate keyway to the compressor shaft key.

7. J 29640 to the compressor shaft.
- Tap the front plate to the shaft until the late bottoms to the clutch shims.

8. Shaft hex nut.
- Hold the plate with J 37872.

Tighten
- Nut to 36 N.m (27 ft.lbs.).
- Check the air gap with a feeler gauge. It should be 0.49 to 0.79 mm (0.016 to 0.031 inch). If the gap is not consistent all around, pry up slightly at points of minimum variation. Lightly tap down at points of maximum variation. The gap 5 determined by the shims. If necessary, add to or remove, shims from the shim stack.