Pontiac Fiero 1988 Service Manual page 87

4 H R - 6 A I R C O N D I T I O N I N G C O M P R E S S O R
1 - SUCTION PORT
2 - REAR VALVE PLATE
3 - SUCTION REED PLATE
4 - PISTON & RING ASSY.
5 - PISTON BALL
6 - SHOE DISC
7 - HEAD GASKET
8 - CLUTCH COIL ASSY.
9 - PULLEY ROTOR
1 0 - CLUTCH DRIVER
1 1 - PULLEY BEARING
1 2 - BEARING RETAINER
RINGS
1 3 - SHAFT NUT
1 4 - SHAFT KEY
1 5 - SEAL RETAINER
1 6 - SEAL 0- RING
1 7 - SHAFT SEAL
1 8 - FRONT HEAD
1 9 - FRONT VALVE PLATE
2 0 - SUCTION REED PLATE
2 1 - FRONT CYLINDER
2 2 - SHAFT & AXIAL
PLATE ASSY.
2 3 - REAR CYLINDER
2 4 - THRUST BEARING
2 5 - THRUST RACE
2 6 - HEAD GASKET
2 7 - PRESSURE RELIEF
VALVE
2 8 - REAR HEAD
* CYLINDER O-RING
SEALS
# * SHAFT BEARING
G60050-1D2-EK
2.
5.
Fig. 5 HR-6 Compressor —- Cross Section
out of the keyway. The shaft key is curved slightly to
provide an interference fit in the hub key groove.
Be sure the frictional surface of the clutch plate and
the clutch rotor are clean before installing the clutch
plate and hub assembly.
Align the shaft key w i t h the shaft keyway and place the
clutch plate and the hub assembly onto the
compressor shaft.
Remove the forcing tip on J-3 3013-B clutch plate and
hub assembly installer-remover center screw and
reverse the body direction on the center screw, as
shown in Figure 9.
N O T I C E : The forcing tip on J-33013-B remover-
installer center screw must be flat or the end of the
shaft/axial plate assembly w i l l be damaged.
Install the clutch plate and hub installer-remover
J-33013-B w i t h bearing as shown in Figure 9.
The body of the J-3 3013-B installer-remover should be
backed off sufficiently to allow the center screw to be
threaded onto the end of the compressor shaft.
6. Hold the center screw with a wrench. Tighten the hex
portion of the installer-remover J-33013-B body to
press the hub onto the shaft. Tighten the body several
turns, remove the installer and check to see that the
shaft key is still in place in the keyway before installing
the clutch plate and hub assembly to its final position.
The air gap between frictional surfaces of the clutch
plate and clutch rotor should be ().38-0.64mm
( . 0 1 5 . 0 2 5 " ) .
• If the center screw is threaded f i i l l y onto the end oi
the compressor shaft, or if the body of the installer
is held and the center screw is rotated, the key w i l l
wedge and w i l l break the clutch hub.
7. Remove installer J-33013-B, check for proper
positioning of the shaft key (even or slightly above the
clutch hub). Install the shaft nut. Hold the clutch plate
and hub assembly w i t h clutch hub holding tool
J-25030 and using shaft nut socket J-33022, tighten the
nut against the compressor shaft shoulder to 11-22
N-m (8-16 ft. lbs.) torque, using a 0-35 N - m ( 0-25 ft.
lbs.) torque wrench.
8.
Spin the pulley rotor by hand to see that the rotor is not
rubbing the clutch drive plate.