(14) Remove the transmission oil filter and o-ring
from the electrohydraulic control unit.
(15) Clean the inside of the oil pan of any debris.
Inspect the oil pan gasket and replace if necessary.
(16) Install a new oil filter and o-ring into the elec-
trohydraulic control unit.
(17) Install the oil pan and gasket onto the trans-
mission.
(18) Install the oil pan bolts and retainers. Torque
the bolts to 8 N·m (70 in.lbs.).
(19) Lower the vehicle and add 7.0 L (7.4 qts.) of
transmission fluid to the transmission.
(20) Check the oil level (Refer to 21 - TRANSMIS-
SION/AUTOMATIC - NAG1/FLUID AND FILTER -
STANDARD PROCEDURE).
FREEWHEELING CLUTCH
DESCRIPTION
Freewheeling clutches (Fig. 141) are installed in
the front planetary gear set between the sun gear
and the stator shaft, and in the rear planetary gear
set between the sun gear and the intermediate shaft.
The freewheel consists of an outer race (4), an
inner race (7), a number of locking elements (3) and
a cage (6) for these locking elements.
OPERATION
The freewheeling clutch (Fig. 142) optimizes indi-
vidual gearshifts. They lock individual elements of a
planetary gear set together or against the transmis-
sion housing in one direction of rotation to allow the
torque to be transmitted.
If the inner race (7) of the freewheeling clutch is
locked and the outer race (4) turns in direction 9A9
(1), the locking elements (3) adopt a diagonal position
on account of their special contours, allowing the
freewheel function. The outer race (4) slides over the
locking elements (3) with negligible friction. If the
rotation of the outer race (4) changes to direction 9B9
(2), the locking elements (3) stand up and lock the
outer and inner races (4, 7) together.
Fig. 141 Freewheeling Clutch
1 - ROTATION DIRECTION 9A9
2 - ROTATION DIRECTION 9B9
3 - LOCKING ELEMENTS
4 - OUTER RACE
5 - FRONT OR REAR SUN GEAR
6 - LOCKING ELEMENT CAGE
7 - INNER RACE
Fig. 142 Freewheeling Clutch
1 - ROTATION DIRECTION 9A9
2 - ROTATION DIRECTION 9B9
3 - LOCKING ELEMENTS
4 - OUTER RACE
5 - FRONT OR REAR SUN GEAR
6 - LOCKING ELEMENT CAGE
7 - INNER RACE
VA AUTOMATIC TRANSMISSION - NAG1 21 - 105
FLUID AND FILTER (Continued)
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