In D, t h e o p t i m u m g e a r is a u t o m a t i c a l l y s e l e c t e d f r o m 1st, 2 n d , 3 r d , 4 t h , a n d 5 t h g e a r s ; a n d 1st, 2 n d , a n d , 3 r d g e a r s i n

D 3 a c c o r d i n g t o c o n d i t i o n s s u c h a s t h e b a l a n c e b e t w e e n t h e a c c e l e r a t o r p e d a l o p e n i n g ( e n g i n e l o a d i n g ) a n d t h e

v e h i c l e s p e e d .

In 1st g e a r

• H y d r a u l i c p r e s s u r e is a p p l i e d t o t h e 1st c l u t c h , t h e n t h e 1st c l u t c h e n g a g e s t h e s e c o n d a r y s h a f t 1st g e a r w i t h t h e

s e c o n d a r y s h a f t b y t h e o n e - w a y c l u t c h .

• T h e m a i n s h a f t 3 r d g e a r d r i v e s t h e s e c o n d a r y s h a f t v i a t h e c o u n t e r s h a f t i d l e r g e a r a n d t h e s e c o n d a r y s h a f t i d l e r g e a r .

* T h e s e c o n d a r y s h a f t 1st g e a r d r i v e s t h e c o u n t e r s h a f t 1st g e a r a n d t h e c o u n t e r s h a f t .

* P o w e r is t r a n s m i t t e d t o t h e f i n a l d r i v e g e a r , w h i c h i n t u r n d r i v e s t h e f i n a l d r i v e n g e a r .

( c o n t ' d )

14-39

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