GMC 1976 ZEO 6083 Maintenance Manual page 498

7- 5 0 TRANSMISSION
INSPECT CENTER SUPPORT
ASSEMBLE CENTER SUPPORT
1 . Inspect roller clutch inner race for scratches or
AND INTERMEDIATE CLUTCH
indentations . Be sure lubrication hole is open .
PISTON ASSEMBLY (FIGURE 63)
2 . Inspect bushing for scoring, wear or galling .
3 . Check oil ring grooves for damage .
4. Air check oil passages to be sure they are open
and not interconnected .
5 . Inspect piston sealing surfaces for scratches.
6. Inspect piston seal grooves for nicks or other
damage .
7 . Inspect piston for cracks .
1. Lubricate new inner and outer clutch piston
seals with transmission fluid . Lubricate seal grooves
in intermediate clutch piston and install seals with
lips facing away from spring guide, Figures 64 and
65 .
2. Place Intermediate Clutch Inner Seal Protec-
tor, J-21363, over center support hub and install in-
termediate clutch piston . Figure 66 .
3 . Install plastic spring guide. Figure 67 .
4. Install six clutch release springs equally spaced
into spring holes in spring guide.
8 . Inspect springs for collapsed coils or signs of
distortion .
5. Place spring retainer and snap ring over
springs.
9 . Inspect oil seal rings for damage .
6. Using Clutch Spring Compressor, J-4670, and
NOTE :
All service center support oil seal rings
Rear Clutch Spring Compressor, J-6129, Figure 61,
are hook type cast iron or teflon .
compress spring retainer, being careful that retainer
ROLLER
ASSEMBLY
THRUST WASHER
CENTER SUPPORT
ASSEMBLY
SUPPORT TO
CASE SPACER
INTERMEDIATE CLUTCH
OUTER SEAL
INTERMEDIATE
CLUTCH PISTON
INTERMEDIATE CLUTCH
INNER SEAL
INTERMEDIATE CLUTCH
RELEASE SPRINGS
INTERMEDIATE CLUTCH
SPRING GUIDE
INTERMEDIATE CLUTCH
SPRING RETAINER
SNAP
A-4112
Figure 63-Center Support Assembly