Chevrolet 1980 Light Duty Truck Repair Manual page 304

(400)7A -18 A U TO M A TIC TR A N SM IS S IO N S
Front Servo Parts Inspection
See Fig. 7A -61C . D o not rem ove the teflon oil seal ring
from the front servo piston unless the oil seal ring requires
replacement. For service, the oil seal ring is aluminum.
1. Inspect servo pin for damage.
2. Inspect piston and oil ring for damage.
3. Check fit o f servo pin in piston and case bore.
SERVO PISTON
ACCUMULATOR PISTON
Fi g. 7 A - 6 2 C ~ R e m o v i n g R e a r A c c u m u l a t o r P i s t o n f r o m R e a r
S e r v o F i s t o n
Fig. 7 A - 6 1 C ~ F r o n t S e r v o A s s e m b l y - E x p l o d e d V i e w
Rear Servo Assembly
Disassem bly
piston (Fig. 7A -62C -A ).
pin (Fig. 7A -63C ).
1. R em ove rear accum ulator piston from rear servo
2. R em ove "E" ring retaining rear servo piston to servo
Fig. 7 A-63C-Rem oving Retaining "E" Ring from Rear Servo
Pin