Page 87 - Hydra-matic 6 Speed RWD Technician's Guide (October 2005)

64

(51)
ASSEMBLY
(64)
1-2-3-4 AND 3-5
2-6 AND
REVERSE CLUTCH
ASSEMBLY
➤
3-5 REVERSE
CLUTCH HUB
1-2-3-4
CLUTCH
APPLIED
1-2-3-4
APPLIED
➤ ➤ ➤ (1) CONVERTER CLUTCH TORQUE POWER FROM 3 1
➤
3-5
CLUTCH
APPLIED
REVERSE
➤ ➤ ➤ APPLIED CLUTCH REVERSE 3-5 6
(52)
INPUT
➤
DRIVEN
CARRIER
ASSEMBLY
➤ ➤ ➤ DRIVEN (495) GEAR FRONT DRIVING INTERNAL GEAR CARRIER INTERNAL OUTPUT INPUT 8a 2 DRIVE RANGE – 3RD GEAR
(53)
HELD
INPUT
(467)
SPRAG
SUN GEAR
ASSEMBLY
➤
LOW CLUTCH
GEAR
(487)
➤
INPUT
Figure 59
DRIVING
DRIVING
INTERNAL
FRONT SUN GEAR
OUTPUT CARRIER
➤
➤
GEARS
PINION
OUTPUT
DRIVING
(489)
REAR
CARRIER
OUTPUT
CARRIER
DRIVING
REAR OUTER
(487)
SUN GEAR
(56)
OUTPUT
4-5-6
SHAFT)
➤
➤
CLUTCH
ASSEMBLY
(w/TURBINE
➤ 1 ➤ gearset continues to operate in reduction at a gear ratio of SUN GEAR shift the transmission into 3rd gear. In 3rd gear, the planetary CARRIER REAR TCM uses this information to determine the precise moment to OUTPUT (TP) sensor, and other vehicle sensors are sent to the TCM. The DRIVEN transmission speed sensors (input and output), throttle position (497) DRIVING As vehicle speed continues to increase, input signals from the REAR GEAR FRONT SUN APPLIED CARRIER CARRIER SPR
CARRIER
DRIVING
OUTPUT
GEAR
REAR INNER
OUTPUT
PINION GEARS
INTERNAL
➤
(497)
REAR
GEAR
DRIVEN
OUTPUT
CARRIER
INTERNAL
(61)
5a
1-2-3-4
5
OUTPUT
CARRIER
DRIVING
ASSEMBLY
4
CLUTCH HUB
GEARS
REAR INNER
PINION
(489)
(495)
DRIVING
GEAR
CARRIER
OUTPUT
PINION GEARS
POWER TO
FRONT
DRIVEN
ASSEMBLY
OUTPUT
DRIVING
CARRIER
INTERNAL
REAR OUTER
DIFFERENTIAL
(70)
SHAFT
OUTPUT
ASSEMBLY
3
6
2
7
4
5/5a
8/8a
gears.
assembly.
of the sun gear.
CLUTCH
3-5 REV.
APPLIED
approximately 1.532:1.
rear sun gear (489).
4-5-6
CLUTCH
1-2-3-4 Clutch Applied
by the converter turbine.
2-6
Input Internal Gear Driving
3-5 Reverse Clutch Applied
CLUTCH
Power from Torque Converter
the transmission downshifts into 2nd gear.
in a gear ratio of approximately 1.532:1
Output Carrier Internal Gears Driven
CLUTCH
Output Carrier Rear Sun Gear Driving
LOW & REV.
Output Carrier Front Sun Gear Driving
the transmission to a lower gear ratio, or 4th gear.
Output Carrier Rear Pinion Gears Driving
the 2-6 and 3-5 reverse clutch hub assembly (64).
CLUTCH
the same direction as the turbine shaft but in reduction.
compression slows the vehicle when the throttle is released until
The 3-5 reverse clutch, which is located within the 1-2-3-4
clutch assembly and drives the output carrier front pinion
to move the vehicle efficiently. Therefore, it is desirable to shift
and 3-5 reverse clutch assembly (51) is applied and holds
is rotating at the same speed as the 1-2-3-4 and 3-5 reverse
5-6 clutch assembly (56). The input internal gear drives the
input carrier pinion gears which rotate around the stationary
input sun gear (53), thus driving the input carrier assembly
As vehicle speed increases, less torque multiplication is required
hub assembly (61), which is splined to the output carrier
The input internal gear is located in the turbine shaft with 4-
to the output carrier front sun gear. Therefore, the sun gear
gears of the rear carrier assembly in the opposite direction
The 1-2-3-4 clutch is applied and holds the 1-2-3-4 clutch
(52) in reduction. The input carrier is splined to the 1-2-3-4
and 3-5 reverse clutch assembly (51), which is rotating in
The 2-6 and 3-5 reverse clutch hub assembly (64) is splined
The output carrier rear sun gear drives the inner pinion
The output carrier rear sun gear (489) is splined to the 1-2-
rear sun gear, the output carrier internal gears will be driven
and the same direction as the 1-2-3-4 and 3-5 reverse clutch
With input power from the output carrier front sun gear and
3-4 clutch hub assembly (61) and rotates at the same speed
to coast brake. Because the low clutch sprag is not used in
When the throttle is released in 3rd gear, the vehicle is allowed
driving the vehicle during acceleration, there are no elements to
The turbine shaft with 4-5-6 clutch assembly (56) is driven
overrun to allow the vehicle to coast freely. Therefore, engine
64A