Discharge Valve Plate - GMC 1990 Light Truck Repair Manual

J 34614
Figure 15—Removing the Shaft Seal with J 23128-A
Figure 16—Removing and Installing the Shaft Seal
2. Compressor shell.
• Alternately tighten each screw 1/4 turn. Use
care not to cock the shell, as normal removal
should not be difficult.
• Do not turn screws any further than needed.
The shell should come off by hand once it clears
the O-rings.
3. O-rings.
4. J 25008-A and install it on the opposite side of the
cylinder using the short screws with the metric
threads.
R-4 AIR CONDITIONING COMPRESSOR 1B3-7
J 23128-A
F-01461
Figure 17—Removing the Front Head Mounting Screws
Figure 18—Removing the Front Head Assembly

DISCHARGE VALVE PLATE

Remove or Disconnect (Figures 22 and 23)
Tools Required:
J 4245 Snap Ring Pliers
J 25008-A Holding Fixture
1. Valve plate retainer ring using J 4245 (figure 22).
2. Discharge valve plates (figure 23).
F-06141