Page 63 - Hydra-matic 6 Speed RWD Technician's Guide (October 2005)

52

(1)
(53)
INPUT
TORQUE
ASSEMBLY
SUN GEAR
CONVERTER
➤
➤ ➤ ➤ (1) CONVERTER TORQUE POWER FROM 1
➤ the vehicle from moving. ➤ • assembly (70). engages the park pawl (502) with the lugs on the output shaft in the Park position. The park pawl actuator assembly (503) ASSEMBLY) DIFFERENTIAL * Applied with no load APPLIED* (70) APPLIED* CLUTCH TERMINATED REVERSE SHAFT SPRAG CLUTCH POWERFLOW LOW AND CLUTCH 2 4 LOW (Engine Running) (Engine Running) PARK
(2)
TORQUE
HOUSING
ASSEMBLY
CONVERTER
(56)
➤
4-5-6
SHAFT)
(WITH FLUID PUMP)
CLUTCH
ASSEMBLY
(w/TURBINE

Figure 47

(51)
ASSEMBLY
1-2-3-4 AND 3-5
REVERSE CLUTCH
CLUTCH
APPLIED*
LOW AND REV
HELD
OUTPUT
ASSEMBLY

(70)
HELD
SHAFT
OUTPUT
ASSEMBLY
(503)
PARK
PAWL
(52)
INPUT
ASSEMBLY
ACTUATOR
CARRIER
ASSEMBLY
3
(NO POWER
TO OR FROM
STATIONARY
(502)
PARK
VEHICLE HELD
PAWL
TRANSMITTED
ENGAGED
* APPLIED BUT CARRYING NO LOAD

•
4
2
1
3
hold in park.
1-2-3-4
or backward.
3-5 REV.
CLUTCH
shaft but in reduction.
4-5-6
CLUTCH
powerflow is terminated.
Powerflow Terminated
Vehicle Held Stationary
2-6
PARK
CLUTCH
Power from Torque Converter
applied as another component releases.
CLUTCH
proper manual linkage adjustment procedures.
LOW & REV.

Low and Reverse Clutch Applied/Preparation for a Shift
(51), which is rotating in the same direction as the turbine
The low and reverse clutch is applied in Park in preparation
Also, the manual linkage must be adjusted properly so the
indicator quadrants in the vehicle correspond with the manual
shaft detent lever (505) in the transmission. If not adjusted
Refer to the appropriate General Motors Service Manual for the
clutch assembly rotate freely. Without any clutches applied,
With the park pawl engaged, the vehicle cannot move forward
The 1-2-3-4 and 3-5 reverse clutch assembly and the 4-5-6
properly, an internal leak between fluid passages at the manual
valve may cause a clutch to slip or cause the transmission to not
Park range or internal damage to the transmission could occur.
only one clutch will need to be applied to achieve either
clutch housing which contains the input internal gear. The
The power flows through the turbine shaft into the 4-5-6
for a shift into either 1st or reverse. This aids shift timing as
the input carrier assembly (52) in reduction. The input carrier
rotate around the stationary input sun gear (53), thus driving
input internal gear drives the input carrier pinion gears which
range. The 6 Speed RWD is designed to have two
the design includes that only one component will need to be
The manual shift shaft (508) and the manual valve (354) are
NOTE: The vehicle should be completely stopped before selecting
The output shaft assembly (70) is held stationary, preventing
is splined to the 1-2-3-4 and 3-5 reverse clutch assembly
components applied for each gear range, except drive range
1st gear without engine braking. Also, in each forward range,
52A