Pontiac FIREBIRD 1972 Service Manual page 1050

7G- 12 1972 PONTIAC SERVICE MANUAL
I N E F F E C T I V E O F F O F F O F F O F F O F F I N E F F E C T I V E
Intermediate Clutch
-
O F F Direct Clutch
-
O F F F o r w a r d Clutch
-
O F F Low & R e v e r s e Clutch
-
O F F
Intermediate Overrun Roller Clutch
-
INEFFECTIVE Low and R e v e r s e Roller Clutch
-
INEFFECTIVE
Intermediate Overrun Band
-
O F F
,
Fig. 7G-6 Operation in Neutral or Park Range
F R O N T G E A R SET REAR G E A R SET
T O REAR U N I T
L
L O C K E D O F F O F F O F F O N O F F L O C K E D
ntermediate Clutch
-
O F F Direct Clutch
-
O F F F o r w a r d Clutch
-
ON
Low and R e v e r s e Clutch
-
OFF
nterrnediate Overrun Roller Clutch - LOCKED
Low and R e v e r s e Roller Clutch
-
LOCKED
ntermediate Overrun Band - O F F
Fig. 7G-7 Operation in Drive Range - First G e a r
In Drive (D) range, second gear, the intermediate clutch
Clockwise rotation of the input ring gear causes the output
is applied to allow the intermediate overrun roller clutch
planet pinions to walk around the now stationary sun gear
to hold the drive shell and sun gear stationary (against in a clockwise direction. This causes the output ring gear
counterclockwise rotation). Turbine torque, through the
and output shaft to turn in a clockwise direction (in a
applied forward clutch, is delivered to the input ring gear reduction ratio of approximately 1.52 to 1).
in a clockwise direction (Fig. 7G-8).