SsangYong Korando II (1996-2006 year). Manual - part 282

5A-32  AUTOMATIC TRANSMISSION

SSANGYONG  MY2002

DRIVE 3 LOCK UP AND MANUAL 3 LOCK UP

KAA5A43A

AUTOMATIC TRANSMISSION  5A-33

SSANGYONG  MY2002

Power Flow - Drive 3 Lock Up and Manual 3
Lock Up

In Drive 3 Lock Up and Manual 3 Lock Up, transmission
drive is the same as for Drive 3 but with the application
of the converter lock up clutch to provide positive no-
slip converter drive.

Control

Control for Drive 3 Lock Up and Manual 3 Lock Up is
the same as for Drive 3 with the addition of the
converter clutch circuit activated by solenoid S7.

•

When S7 is switched ON, S7 feed oil to the converter
clutch control valve is switched OFF and allowed
to exhaust through the S7 solenoid. This allows the
valve to move to the clutch engage position.

•

Regulated apply feed oil, drive oil at the converter
clutch regulator valve, is directed by the converter
clutch control valve to the engage side of the
converter clutch.

•

Converter clutch release oil is exhausted at the con-
verter clutch control valve.

•

Converter feed oil is re-routed by the converter clutch
control valve directly to the oil cooler and lubrication
circuit.

Gear State

Drive 3 Lock Up and Manual 3

Lock Up

C1

X

C2

X

C3

-

C4

X

B1

-

B2

-

1-2

OWC

-

3-4

OWC

X

LU

CLUTCH

X

ELEMENTS ENGAGED

KAA5A440

5A-34  AUTOMATIC TRANSMISSION

SSANGYONG  MY2002

DRIVE 4 (OVERDRIVE)

KAA5A45A

AUTOMATIC TRANSMISSION  5A-35

SSANGYONG  MY2002

Power Flow - Drive 4 (Overdrive)

In Drive 4 (Overdrive), transmission drive is via the
input shaft to the forward clutch cylinder.

The elements of the transmission function as follows;

•

The C1 clutch is applied to drive the planet carrier
clockwise.

•

The B1 band is applied to hold the reverse sun gear
stationary.

•

As the planet carrier tuns, the long pinion walks
around the stationary reverse sun gear and rotates
around its axis driving the internal ring gear and
output shaft in a clockwise or forward direction at a
speed faster than the input shaft i.e. in overdrive
ratio.

•

The forward sun gear is also driven faster than the
input shaft and overruns the 3-4 OWC.

•

The C2 clutch is engaged to reduce the speed differ-
ential across the 3-4 OWC.

Control

To maintain this arrangement in the steady state sole-
noids and valves are activated as follows;

•

Solenoid S1 is switched ON. S2 is switched OFF.

•

With S1 switched ON, the 3-4 shift valve is held in
the fourth gear position by line 500 pressure on the
small end of the valve.

•

With S2 switched OFF, the 2-3 shift valve is held in
the fourth gear position by line 500 pressure on the
large end of the valve.

•

The 1-2 shift valve is held in the fourth gear position
by S2 oil pressure.

•

2nd oil (line pressure) from the 1-2 shift valve is di-
rected to the band apply feed regulator valve, and
to the 2-3 shift valve.

•

The band apply feed regulator valve supplies 2nd
oil (regulated to line pressure multiplied by the valve
ra-tio) to the Band Apply Feed (BAF) circuit.

•

Band apply feed oil is directed to;

- the outer apply area of the front servo

- the inner apply area of the front servo piston via

the 3-4 shift valve

- the 1-2 shift valve to provide an exhaust port

when the transmission is shifted to first gear

•

2nd oil at the 2-3 shift valve is directed to the 3rd
oil circuit.

•

3rd oil from the 2-3 shift valve is directed to the
clutch apply regulator valve, and to the 4-3
sequence valve.

•

The clutch apply regulator valve supplies oil (regu-
lated to line 500 pressure multiplied by the valve
ratio) to the Clutch Apply Feed (CAF) circuit.

•

The CAF oil is directed to;

- the C1 clutch

- the 4-3 sequence valve

•

Drive oil (line pressure) from the manual valve en-
gages the C2 clutch.

Gear State

Drive 4 Overdrive

C1

X

C2

X

C3

-

C4

-

B1

X

B2

-

1-2

OWC

-

3-4

OWC

-

LU

CLUTCH

-

ELEMENTS ENGAGED

KAA5A460