Page 88 - Hydra-matic 6 Speed RWD Technician's Guide (October 2005)

64
(51)
ASSEMBLY
POWER FROM
(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
➤
➤
➤
3-5
CLUTCH
APPLIED
REVERSE
➤
6
3-5
CLUTCH
REVERSE
(52)
INPUT
➤
DRIVEN
CARRIER
ASSEMBLY
2
DRIVING
INTERNAL
(53)
➤
HELD
INPUT
(467)
SPRAG
SUN GEAR
ASSEMBLY
➤
LOW CLUTCH
GEAR
➤
(487)
INPUT
Figure 59
DRIVING
DRIVING
INTERNAL
8a
GEAR
FRONT
FRONT SUN GEAR
OUTPUT CARRIER
OUTPUT
CARRIER
INTERNAL
➤
➤
GEARS
PINION
OUTPUT
CARRIER
(489)
DRIVING
REAR
7
OUTPUT
DRIVING
CARRIER
REAR OUTER
(487)
SUN GEAR
GEAR
(56)
OUTPUT
CARRIER
4-5-6
SHAFT)
FRONT SUN
➤
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 (495) DRIVING As vehicle speed continues to increase, input signals from the APPLIED (1) CONVERTER GEAR APPLIED CLUT
8
DRIVING
OUTPUT
CARRIER
(497)
REAR
GEAR
REAR INNER
DRIVEN
CARRIER
PINION GEARS
OUTPUT
INTERNAL
➤
(497)
REAR
GEAR
DRIVEN
OUTPUT
CARRIER
INTERNAL
(61)
5a
1-2-3-4
5
OUTPUT
DRIVING
CARRIER
ASSEMBLY
4
CLUTCH HUB
REAR INNER
PINION
GEARS
(489)
(495)
CARRIER
GEAR
DRIVING
OUTPUT
PINION GEARS
FRONT
POWER TO
DRIVEN
ASSEMBLY
DRIVING
CARRIER
OUTPUT
REAR OUTER
INTERNAL
(70)
DIFFERENTIAL
SHAFT
OUTPUT
ASSEMBLY
4
2
7
6
3
8/8a
5/5a
gears.
assembly.
of the sun gear.
CLUTCH
APPLIED
3-5 REV.
approximately 1.532:1.
rear sun gear (489).
4-5-6
CLUTCH
by the converter turbine.
1-2-3-4 Clutch Applied
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
DRIVE RANGE – 3RD GEAR
the same direction as the turbine shaft but in reduction.
to move the vehicle efficiently. Therefore, it is desirable to shift
As vehicle speed increases, less torque multiplication is required
The output carrier rear sun gear (489) is splined to the 1-2-
3-4 clutch hub assembly (61) and rotates at the same speed
and the same direction as the 1-2-3-4 and 3-5 reverse clutch
and 3-5 reverse clutch assembly (51), which is rotating in
The 1-2-3-4 clutch is applied and holds the 1-2-3-4 clutch
hub assembly (61), which is splined to the output carrier
is rotating at the same speed as the 1-2-3-4 and 3-5 reverse
The 3-5 reverse clutch, which is located within the 1-2-3-4
gears of the rear carrier assembly in the opposite direction
The output carrier rear sun gear drives the inner pinion
to the output carrier front sun gear. Therefore, the sun gear
The 2-6 and 3-5 reverse clutch hub assembly (64) is splined
and 3-5 reverse clutch assembly (51) is applied and holds
(52) in reduction. The input carrier is splined to the 1-2-3-4
to coast brake. Because the low clutch sprag is not used in
When the throttle is released in 3rd gear, the vehicle is allowed
rear sun gear, the output carrier internal gears will be driven
compression slows the vehicle when the throttle is released until
overrun to allow the vehicle to coast freely. Therefore, engine
driving the vehicle during acceleration, there are no elements to
With input power from the output carrier front sun gear and
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
The input internal gear is located in the turbine shaft with 4-
The turbine shaft with 4-5-6 clutch assembly (56) is driven
clutch assembly and drives the output carrier front pinion
64A