Page 95 - Hydra-matic 6 Speed RWD Technician's Guide (October 2005)

68

(51)
ASSEMBLY
1-2-3-4 AND 3-5
REVERSE CLUTCH
➤

➤ ➤ ➤ DRIVING (1) GEAR CONVERTER INTERNAL TORQUE INPUT POWER FROM 2 1
CLUTCH
APPLIED
3-5 REVERSE
➤ ➤ APPLIED CLUTCH REVERSE 3-5 3
(64)
2-6 AND
DRIVING
ASSEMBLY
3-5 REVERSE
CLUTCH HUB
(52)
INPUT
DRIVEN
CARRIER
➤
ASSEMBLY
➤
(53)
HELD
INPUT
➤ DRIVING (68) APPLIED ASSEMBLY CLUTCH CARRIER 4-5-6 OUTPUT 5 6 (T orque Converter Clutch Applied) DRIVE RANGE – 5TH GEAR
SUN GEAR
(487)
➤
DRIVING
➤
FRONT SUN GEAR
OUTPUT CARRIER
INPUT
DRIVING
Figure 63
INTERNAL GEAR
➤
➤
(68)
➤
➤ ➤ DRIVEN (495) GEAR FRONT INTERNAL CARRIER OUTPUT 7
OUTPUT
CARRIER
DRIVING
ASSEMBLY
4-5-6
APPLIED
CLUTCH
➤
(56)
➤ 1 speed. vehicle to maintain a given road speed with less engine output transmission gearset to the vehicle drive shaft. This allows the ASSEMBLY is used to achieve an approximate ratio of 0.852:1 through the DIFFERENTIAL POWER TO DRIVING (487) APPLIED GEAR SPRAG FRONT SUN CLUTCH CLUTCH CARRIER 1-2-3-4 OUTPUT 4 (Torque Converter Clutch Applied) DRIVE RANGE – 5TH GEAR
4-5-6
➤
SHAFT)
(w/TURBINE
CLUTCH ASSEMBLY
➤
(58)
4-5-6 CLUTCH
(495)
HUB ASSEMBLY
GEAR
FRONT
DRIVEN
CARRIER
OUTPUT
(w/OUTPUT CARRIER
INTERNAL
SHAFT AND DAMPENER)
(70)
SHAFT
OUTPUT
ASSEMBLY
6
3
2
5
4
7
3-5 REV.
CLUTCH
4-5-6
4-5-6 Clutch Applied
approximately 0.852:1.
CLUTCH
APPLIED
by the converter turbine.
3-5 reverse clutch assembly.
2-6
Input Internal Gear Driving
3-5 Reverse Clutch Applied
CLUTCH
Power from Torque Converter
Output Carrier Assembly Driving
CLUTCH
LOW & REV.
until the transmission downshifts into 4th gear.
Output Carrier Front Sun Gear Driving
Output Carrier Internal Front Gear Driven
LOW
The output carrier is now driving at turbine speed.
assembly (58), which is now rotating at turbine speed.
the same direction as the turbine shaft but in reduction.
output carrier react as one unit to drive the output carrier
The turbine shaft with 4-5-6 clutch assembly (56) is driven
internal front gear with a 5th gear overdrive ratio of
To maximize engine performance and fuel economy, a 5th gear
elements to overrun to allow the vehicle to coast freely. Therefore,
engine compression slows the vehicle when the throttle is released
When the throttle is released in 5th Gear, the vehicle is allowed
to coast brake. Because the low clutch sprag assembly is not
used in driving the vehicle during acceleration, there are no
The 3-5 reverse clutch is located in the 1-2-3-4 and 3-5
reverse clutch assembly (51). The 3-5 reverse clutch plates
The 4-5-6 clutch is located within the 4-5-6 (w/turbine shaft)
(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
to the output carrier front sun gear (487). The output carrier
The 2-6 and 3-5 reverse clutch hub assembly (64) is splined
front sun gear is driving the output carrier front pinion gears.
are splined to the 2-6 and 3-5 reverse clutch hub assembly
(64) which now rotates at the same speed as the 1-2-3-4 and
input sun gear (53), thus driving the input carrier assembly
assembly (58) is splined to the output carrier assembly (68).
The 4-5-6 clutch (w/ output carrier shaft and dampener) hub
carrier driving, the output carrier front pinion gears and the
With the output carrier front sun gear driving and the output
the 4-5-6 clutch (w/ output carrier shaft and dampener) hub
input carrier pinion gears which rotate around the stationary
5-6 clutch assembly (56). The input internal gear drives the
clutch assembly (56). When applied, the clutch plates engage
The input internal gear is located in the turbine shaft with 4-
68A