OPERATION
The holding clutches (F ig. 166) connect the a nnu-
lus gea r, sun gear, or planetar y ca rrier of a plan etar y
gear set aga inst the tra nsmission housing in order to
transmit the drive torque.
If t he piston (16) on multiple-disc holding clut ch
B1 (1) is subject ed to oil pressu re, it pr esses the
internal (3) and exter nal discs (2) of the disc set
toget her. The inter nally t oothed disc carrier (15)
locks the sun gear (14) a gainst th e housing. Th e
planet ary pinion gears (13) t urn on th e sun gea r (14).
If the multiple-disc holding clutch B2 (5) is a ctu-
ated via the piston (7), the piston com pr esses the disc
set. Th e interna lly toothed disc carrier (8) locks t he
su n gear (12) against the hou sing. The planetary pin-
ion gea rs (11) turn on the su n gear (12).
If the multiple-disc holding clutch B3 (4) is a ctu-
ated via t he piston (6), th e pla neta ry carrier (9) and
the ann ulus gear (10) a re locked. Wh en t he m ultiple-
disc br ake B3 (4) is actua ted, th e direction of rotation
is re vers ed .
Fig. 166 Holding Clutches
1 - B1 CLUTCH 10 - CENTER PLANETARY GEARSET ANNULUS GEAR
2 - EXTERNALLY TOOTHED DISC 11 - CENTER PLANETARY GEARSET PINION GEARS
3 - INTERNALLY TOOTHED DISC 12 - CENTER PLANETARY GEARSET SUN GEAR
4 - B3 CLUTCH 13 - FRONT PLANETARY GEARSET PINION GEARS
5 - B2 CLUTCH 14 - FRONT PLANETARY GEARSET SUN GEAR
6 - B3 CLUTCH PISTON 15 - B1 CLUTCH INTERNALLY TOOTHED DISC CARRIER
7 - B2 CLUTCH PISTON 16 - B1 CLUTCH PISTON
8 - B2 CLUTCH INTERNALLY TOOTHED DISC CARRIER 17 - B1 CLUTCH EXTERNALLY TOOTHED DISC CARRIER
9 - REAR PLANETARY GEARSET PLANETARY CARRIER
21 - 142 AUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATION VA
To Next Page
Loading...
