Porsche 928 Workshop Manual page 81

a
928
Automatic Transmission/Controls, Case
37
Note:
Brake-band pistons with five
different pressure pins marked with
grooves (arrowed) are available to
correct play at brake band 8 1. The
brake band piston with the shortest
pressure pin has no identification
groove, the brake band piston with
the longest pressure pin has four
identification grooves.
49.Bolt Special Tool 9316 to
transmission case and insert
brake band piston B 1 with
compression springs and Special
Tool 9320. Screw spindle down
while ensuring that piston
pressure pin enters brake band
(do not damage sealing ring with
lip).
Brake band pistons with removable
pressure pins were installed as of
transmission No. 788 606. To
correct play, use shims available
in three thicknesses 0.5 mm, 1.0 mm
and 1.5 mm.
Note:
Play is set with either a flat or
pointed adjuster screw for Special
Tool 9320, depending on the design
of brake band piston.
Piston with rivetted pressure pin =
hex screw with point
1 = Brake band piston B 1
2 = Pressure pin
3 = Sealing ring with lip
4 = Shims
5 = O-ring
d = Max. 6.5 mm
Piston with removable pressure
pin = flat hex screw M 10 x 1
Printed in Germany - XVI,1987
Disassembling and Assembling 37 - 167
Transmission