Page 91 - Hydra-matic 6 Speed RWD Technician's Guide (October 2005)

66

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

➤ ➤ ➤ ➤ (1) APPLIED CONVERTER CLUTCH TORQUE 1-2-3-4 POWER FROM 3 1
1-2-3-4
CLUTCH
APPLIED
➤ ➤ DRIVING GEAR INTERNAL INPUT 2

(52)
INPUT
DRIVEN
CARRIER
(61)
➤
ASSEMBLY
1-2-3-4
ASSEMBLY
CLUTCH HUB
➤
(53)
HELD
INPUT
➤ DRIVING (68) APPLIED CLUTCH CARRIER 4-5-6 6 7 (T orque Converter Clutch Applied) DRIVE RANGE – 4TH GEAR
SUN GEAR
➤
➤
Figure 61
GEAR
INPUT
DRIVING
INTERNAL
➤
(68)
➤
OUTPUT
OUTPUT
DRIVING
ASSEMBLY
CARRIER
ASSEMBLY
(489)
REAR
OUTPUT
DRIVING
CARRIER
SUN GEAR
4-5-6
➤
CLUTCH
APPLIED
PINION
GEARS
DRIVEN
➤
➤
CARRIER
OUTPUT
REAR OUTER
➤ approximately 1.152:1. gearsets continue to operate in reduction at a gear ratio of shift the transmission into 4th gear. In 4th gear the planetary DRIVING (489) SUN GEAR (TP) sensor, and other vehicle sensors are sent to the TCM. The REAR transmission speed sensors (input and output), throttle position CARRIER DRIVEN (497) 4 GEAR APPLIED REAR INTERNAL SPRAG CLUTCH CARRIER CLUTCH 1-2-3-4 OUTPUT LOW 8 (Torque Converter Clutch Applied) DRIVE RANGE – 4TH GEAR
➤
(56)
4-5-6
SHAFT)
CLUTCH
ASSEMBLY
(w/TURBINE
OUTPUT
DRIVING
CARRIER
REAR INNER
PINION GEARS
➤
(58)
5a
(497)
REAR
GEAR
REAR
DRIVEN
PINION
OUTER
GEARS
DRIVEN
OUTPUT
CARRIER
4-5-6 CLUTCH
OUTPUT
CARRIER
INTERNAL
HUB ASSEMBLY
5
(w/OUTPUT CARRIER
SHAFT AND DAMPENER)
DRIVING
OUTPUT
CARRIER
REAR INNER
PINION GEARS
POWER TO
ASSEMBLY
OUTPUT
(70)
DIFFERENTIAL
SHAFT
OUTPUT
ASSEMBLY
3
2
8
7
6
4
1
5/5a
1.152:1.
assembly.
3-5 REV.
CLUTCH
rear sun gear (489).
4-5-6 Clutch Applied
4-5-6
CLUTCH
APPLIED
by the converter turbine.
1-2-3-4 Clutch Applied
direction of the sun gear.
2-6
Input Internal Gear Driving
CLUTCH
Power from Torque Converter
Output Carrier Assembly Driving
shift to an overdrive gear ratio, or 5th gear.
CLUTCH
Output Carrier Rear Sun Gear Driving
until the transmission downshifts into 3rd gear.
LOW & REV.
Output Carrier Internal Rear Gear Driven
Output Carrier Rear Pinion Gears Driving
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.
When the throttle is released in 4th gear, the vehicle is allowed
input sun gear (53), thus driving the input carrier assembly
As vehicle speed increases further, input signals from the
outer pinion gears, which in turn drive the output carrier
internal rear gear with a 4th gear ratio of approximately
engine compression slows the vehicle when the throttle is released
elements to overrun to allow the vehicle to coast freely. Therefore,
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
used in driving the vehicle during acceleration, there are no
to coast brake. Because the low clutch sprag assembly is not
and 3-5 reverse clutch assembly (51), which is rotating in
(52) in reduction. The input carrier is splined to the 1-2-3-4
carrier driving, the rear inner pinion gears drive the rear
The input internal gear is located in the turbine shaft with 4-
pinion gears of the rear carrier assembly in the opposite
The turbine shaft with 4-5-6 clutch assembly (56) is driven
5-6 clutch assembly (56). The input internal gear drives the
to operate the engine efficiently. Therefore, it is desirable to
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
The output carrier rear sun gear drives the inner planetary
The output carrier rear sun gear (489) is splined to the 1-2-
As vehicle speed increases, less torque multiplication is required
assembly (58) is splined to the output carrier assembly (68).
With the output carrier rear sun gear driving and the output
TCM uses this information to determine the precise moment to
The 4-5-6 clutch (w/ output carrier shaft and dampener) hub
clutch assembly (56). When applied, the clutch plates engage
The 4-5-6 clutch is located within the 4-5-6 (w/turbine shaft)
input carrier pinion gears which rotate around the stationary
the 4-5-6 clutch (w/ output carrier shaft and dampener) hub
66A