1997 MERCEDES-BENZ ML320 Complete Repair Manual

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Page 1385 of 4133

MERCEDES-BENZ ML320 1997 Complete Repair Manual Fig. 126: Power Flow In 3rd Gear Function
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Principal of power transmission in 3rd gear
Torque from the torque converter is increased via the propeller sha

Page 1386 of 4133

MERCEDES-BENZ ML320 1997 Complete Repair Manual Freewheel F1.
Freewheel F2.
Rear multi-disc clutch (K3).
Front Planetary Gear Set
The planet carrier (V3) and sun gear (V1) are rigidly connected to each other via the engaged front m

Page 1387 of 4133

MERCEDES-BENZ ML320 1997 Complete Repair Manual Fig. 127: Power Flow In 4th Gear Function
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Principal of power transmission in 4th gear
The direct drive ratio of 4th gear (i = 1) means that there is no t

Page 1388 of 4133

MERCEDES-BENZ ML320 1997 Complete Repair Manual Center Multi-Disc Brake (B3)
Freewheel F1
Freewheel F2
Front Planetary Gear Set
The planet carrier (V3) and sun gear (V1) are rigidly connected with each other via the engaged front m

Page 1389 of 4133

MERCEDES-BENZ ML320 1997 Complete Repair Manual Fig. 128: Power Flow In 5th Gear Function
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Principles of power transmission in 5th gear
Torque from the torque converter is increased via the propeller sh

Page 1390 of 4133

MERCEDES-BENZ ML320 1997 Complete Repair Manual Center Multi-Disc Brake (B3)
Freewheel F2
Front Multi-Disc Clutch (K1)
Front Planetary Gear Set
The input shaft (1) drives the internal gear (V4). In the drive mode the sun gear (V1)

Center Multi-Disc Brake (B3)
Freewheel F2
Front Multi-Disc Clutch (K1)
Front Planetary Gear Set
The input shaft (1) drives the internal gear (V4). In the drive mode the sun gear (V1) is supported via the locked
freewheel (f1) and in overrun mode in the housing via the engaged front multi-disc brake (B1). The planet gears
(V2) roll over the fixed sun gear (V1) and provide an increase in torque between the internal gear (V4) and the
planet carrier (V3). The planet carrier (V3) moves at reduced speed in the direction of engine rotation.
Rear Planetary Gear Set
The center multi-disc clutch (K2) is engaged and transmits the input speed of the input shaft (1) to the planet
carrier (H3) via the hollow gear (M4). The internal gear (H4) turns at a reduced speed because of its mechanical
connection to the front planet carrier (V3). The planet gears (H2) turn between the ring gear (H4) and the sun
gear (H1). The sun gear (H1) moves at increased speed in the direction of engine rotation.
Center Planetary Gear Set
The hollow gear (M4) rotates at input speed due to the engaged center multi-disc clutch (K2). The rear multi-
disc clutch (K3) transmits a higher speed to the sun gear (M1) due to the connection to the sun gear (H1). The
planet gears (M2) turn between the ring gear (M4) and the sun gear (M1). The speed of the planet carrier (M3)
and the output shaft connected to the planet carrier (5) lies between that of the ring gear (M4) and the sun gear
(M1). This provides a step-up ratio.
Torque Converter, Location/Task/Design/Function

See TORQUE CONVERTER, LOCATION/TASK/DESIGN/FUNCTION
.
Planetary Gear Set, Location/Task/Design/Function

See PLANETARY GEAR SET, LOCATION/TASK/DESIGN/FUNCTION
. .
Multiple-Disc Brake, Location/Task/Design/Function

See MULTIPLE
-DISC BRAKE, LOCATION/TASK/DESIGN/FUNCTION.
Multi-Plate Clutch, Location/Task/Design/Function

See MULTI
-PLATE CLUTCH, LOCATION/TASK/DESIGN/FUNCTION.
Power Flow In Reverse, Function (Without Touch Shift)

2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:28 PMPage 221 © 2006 Mitchell Repair Information Company, LLC.

Page 1391 of 4133

MERCEDES-BENZ ML320 1997 Complete Repair Manual Fig. 129: Power Flow In Reverse, Function
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Principle Of Power Transmission In Reverse Gear.

2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Com

Page 1392 of 4133

MERCEDES-BENZ ML320 1997 Complete Repair Manual Torque from the torque converter is increased via the propeller shaft (1) and all three planetary gearsets and
transferred with reversed direction of rotation to the output shaft (5). See Fig. 129
.

Torque from the torque converter is increased via the propeller shaft (1) and all three planetary gearsets and
transferred with reversed direction of rotation to the output shaft (5). See Fig. 129
.
The following are not engaged:
Rear Multi-Disk Brake (B2)
Freewheel F2
Front Multi-Disk Clutch (K1)
Front Planetary Gear Set.
The input shaft (1) drive the internal gear (V4). In drive mode the sun gear (V1) is supported via the locked
freewheel (F1) and in overrun mode in the housing via the engaged front multi-disk brake (B1). The planet
gears (V2) roll over the fixed sun gear (V1) and provide an increase in torque between the internal gear (V4)
and the planet carrier (V3). The planet carrier (V3) moves at reduced speed in the direction of engine rotation.
Rear Planetary Gear Set.
The planet carrier (H3) is held securely in the housing due to the engaged center multi-disk brake (B3). The
internal gear (H4) turns at a reduced speed because of its mechanical connection to the front planet carrier (V3).
The planet gears (H2) turn between the ring gear (H4) and the sun gear (H1). The direction is reversed due to
the securely held planet carrier (H3) so that the sun gear (H1) rotates in the opposite direction to the engine.
Center Planetary Gear Set.
The hollow gear (M4) is held securely in the housing by the center multi-disk brake (B3) via the mechanical
connection to the planet carrier (H3). The sun gear (M1) rotates backwards due to the engaged rear multi-disk
clutch (K3). The planet gears (M2) roll over the fixed internal gear (M4) and provide an increase in torque
between the sun gear (M1) and the planet carrier (M3). The output shaft (5) connected to the planet carrier (M3)
turns at a reduced speed in the opposite direction to the running direction of the engine.
Torque Converter, Location/Task/Design/Function

See TORQUE CONVERTER, LOCATION/TASK/DESIGN/FUNCTION
.
Planetary Gear Set, Location/Task/Design/Function

See PLANETARY GEAR SET, LOCATION/TASK/DESIGN/FUNCTION
. .
Multiple-Disc Brake, Location/Task/Design/Function

See MULTIPLE
-DISC BRAKE, LOCATION/TASK/DESIGN/FUNCTION.
Multi-Plate Clutch, Location/Task/Design/Function

See MULTI
-PLATE CLUTCH, LOCATION/TASK/DESIGN/FUNCTION.

2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:28 PMPage 223 © 2006 Mitchell Repair Information Company, LLC.

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