GMC 1990 Light Truck Repair Manual page 97

1. Hex nut using a 19 mm socket.
2. Clutch front plate using J 36045 (figure 4).
• 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.
SD-709 AIR CONDITIONING COMPRESSOR 1B5-3
3. Shaft key (27) by lightly tapping it loose with a slot
screw driver and hammer (figure 5).
4. Internal bearing snap ring (4) with internal type snap
ring pliers (figure 6).
5. Rotor pulley assembly.
• Insert J 37792 into the snap ring groove.
• Align the thumb head bolts of J 8433 to the
puller fingers and tighten.