Page 64 - Hydra-matic 6 Speed RWD Technician's Guide (October 2005)

52
1
(1)
TORQUE
CONVERTER
POWER FROM
(1)
(53)
INPUT
TORQUE
➤
ASSEMBLY
SUN GEAR
CONVERTER
➤
➤
➤
➤
(2)
TORQUE
HOUSING
ASSEMBLY
CONVERTER
2
(56)
➤
4-5-6
SHAFT)
CLUTCH
(WITH FLUID PUMP)
ASSEMBLY
➤
(w/TURBINE
TERMINATED
POWERFLOW
4
CLUTCH
REVERSE
APPLIED*
LOW AND
Figure 47
PARK
(51)
(Engine Running)
ASSEMBLY
1-2-3-4 AND 3-5
REVERSE CLUTCH
CLUTCH
APPLIED*
LOW AND REV
(70)
HELD
SHAFT
OUTPUT
ASSEMBLY
(70)
HELD
SHAFT
OUTPUT
ASSEMBLY
(503)
PARK
PAWL
(52)
INPUT
ACTUATOR
ASSEMBLY
CARRIER
ASSEMBLY
3
ASSEMBLY)
(NO POWER
STATIONARY
TO OR FROM
(502)
DIFFERENTIAL
VEHICLE HELD
PAWL
PARK
TRANSMITTED
ENGAGED
* APPLIED BUT CARRYING NO LOAD
•
•
1
2
3
4
hold in park.
1-2-3-4
CLUTCH
assembly (70).
or backward.
CLUTCH
3-5 REV.
* Applied with no load
shaft but in reduction.
the vehicle from moving.
4-5-6
CLUTCH
powerflow is terminated.
Powerflow Terminated
Vehicle Held Stationary
2-6
PARK
CLUTCH
Power from Torque Converter
(Engine Running)
applied as another component releases.
CLUTCH
APPLIED*
LOW & REV.
proper manual linkage adjustment procedures.
LOW
SPRAG
CLUTCH
Low and Reverse Clutch Applied/Preparation for a Shift
1st gear without engine braking. Also, in each forward range,
the design includes that only one component will need to be
NOTE: The vehicle should be completely stopped before selecting
components applied for each gear range, except drive range
for a shift into either 1st or reverse. This aids shift timing as
only one clutch will need to be applied to achieve either
range. The 6 Speed RWD is designed to have two
properly, an internal leak between fluid passages at the manual
valve may cause a clutch to slip or cause the transmission to not
Refer to the appropriate General Motors Service Manual for the
shaft detent lever (505) in the transmission. If not adjusted
Park range or internal damage to the transmission could occur.
Also, the manual linkage must be adjusted properly so the
indicator quadrants in the vehicle correspond with the manual
The low and reverse clutch is applied in Park in preparation
The power flows through the turbine shaft into the 4-5-6
clutch housing which contains the input internal gear. The
input internal gear drives the input carrier pinion gears which
The output shaft assembly (70) is held stationary, preventing
The manual shift shaft (508) and the manual valve (354) are
in the Park position. The park pawl actuator assembly (503)
engages the park pawl (502) with the lugs on the output shaft
The 1-2-3-4 and 3-5 reverse clutch assembly and the 4-5-6
clutch assembly rotate freely. Without any clutches applied,
With the park pawl engaged, the vehicle cannot move forward
(51), which is rotating in the same direction as the turbine
rotate around the stationary input sun gear (53), thus driving
the input carrier assembly (52) in reduction. The input carrier
is splined to the 1-2-3-4 and 3-5 reverse clutch assembly
52A