Opel 1900 1973 Service Manual page 420

Reverse Clutch Released
Second Clutch. Released
In Drive Range. First Gear, the low band is applied and all clutches are released.
The low band holds the reaction sun gear and drum stationary, which serves as the reaction member of the planet-
ary gear set in first gear. The input shaft drives the third clutch drum in a clockwise direction, which turns the
sprag race and retainer assembly clockwise. The sprags wedge and drive the input sun gear.
The power is then transmitted through the gear set to the output shaft as outlined in "Principles of Operation".
The ratio in first gear is 2.4O:l.
Low Range
In Low Range, the third clutch is applied together with the low band. The input power flow is exactly the Same as
drive range first gear except that the third clutch is engaged and prevents the sprag from overrunning, thus pro-
viding engine braking when coasting in Low Range.
b . D R I V E R A N G E . F I R S T G E A R
Figure 7C-49 Drive Range First Gear
A U T O M A T I C T R A N S M I S S I O N
Third Clutch. Released
Low Band. Applied