Chevrolet 1977 10 Series, Repair Manual, Page: 30 / 468

1B-24
OVERHAUL MANUAL
HIGH PRESSURE RELIEF
VALVE
SUCTION
PORT
DISCHARGE
PORT
Fig. 6 8 —I nsta lling H o ld in g Fixture
9401 into hub. Hold body of tool with a wrench and turn
center screw into J-9401 remover to remove clutch plate and
hub assembly (Fig. 70).
4. Remove the shaft key.
Installation
1. Install shaft key into hub key groove (Fig. 71). Allow
key to project approximately 3/16" out of keyway. Shaft key
is curved slightly to provide an interference fit in shaft key
groove, to perm it key projection without falling out.
2. Be sure frictional surface of clutch plate and clutch
rotor are clean before installing clutch plate and hub
assembly.
3. Align shaft key with shaft key way and assemble
clutch plate and hub assembly on compressor shaft.
CAUTION: To avoid internal damage to
compressor, do not drive or pound on clutch hub
or shaft.
Fig. 7 0 - R e m o v i n g C lu tch Plate and H ub A ss e m b ly
4. Place spacer bearing J-9480-2 on hub and insert end
of clutch plate and hub assembly installer J-9480-1 through
spacer J-9480-2 and thread tool onto end of compressor
shaft (Fig. 72).
5. Hold hex portion of tool body with a wrench and
tighten center screw to press hub onto shaft until there is
a .020 to .040 inch air gap between the frictional surfaces
of clutch plate and clutch rotor (Fig. 72).
J9401
CLUTCH PLATE AND HUB
ASSEMBLY
J - 2 5 0 3 0
J - 9 3 9 9
C L U T C H A S S E M B L Y
J - 2 5 0 0 8 - l
Fig. 69--Removing Shaft Locknut
Fig. 7 1—Installing S haft Key