Volvo 50-42LE transmission. Manual — part 10

S1

"ON"

VIEWED FROM THE

WORM TRACK SIDE

n.c.

STH (epc)

SL

"OFF"

X

X

X

X

X

X

X

X

X

X

X

.039" balance

orifice thru valve

PRESSURE CONTROL

SOLENOID REG. VALVE

MANUAL VALVE

2-3 SHIFT

VALVE

3-4 SHIFT

VALVE

1-2 SHIFT

VALVE

NEUTRAL CONTROL

VALVE (Blocked)

CLUTCH MODULATOR

VALVE

TCC SOLENOID

REGULATOR VALVE

PRESSURE REGULATOR

VALVE

SECONDARY REGULATOR

VALVE

LOCK-UP CONTROL

VALVE

C1 ACCUMULATOR

LOW COAST

MODULATOR

VALVE (B3)

LEGEND

B1 ACCUMULATOR

VALVE

ACCUMULATOR

CONTROL

VALVE

B2 ACCUMULATOR

VALVE

B2

ACCUMULATOR

C2 ACCU-

MULATOR

C2 ACCU-

MULATOR

VALVE

C3 ACCUMULATOR

VALVE

OUTPUT

SUCTION

TCC

RELEASE SIDE

TCC

APPLY SIDE

THE RETURN

LINE IS LOCATED

IN THE FRONT PAN

CLUTCH PACKS

C3

ACCUMULATOR

.038" ORIFICE

.058" CROSS-

DRILLED HOLE

.0

3

0

"

.0

3

0

"

2

2

6

W

1

.0

5

1

"

VOID

C-3

C-3

ATF

COOLER

X

X

B4 BRAKE BAND

"OFF"

B4 SERVO

B4 ACCUMULATOR

PISTON

B

-4

A

-2

.0

3

2

"

.0

8

6

"

.0

4

0

"

.0

3

5

"

.0

3

9

"

.0

4

2

"

**

.0

3

9

"

C

B

3

C

B

6

.0

7

8

"

Rear

lube

Central

lube

Pressure

port

503L

SUMP

X

X

PUMP

TORQUE

CONVERTER

B-1

C

B

1

C

B

2

C

B

8

C

B

9

C

B

1

0

.059"

X

.047"

X

X

COOLER

RELIEF

X

0

. 32"

X

X

X

X

503L

.0

4

0

"

X

X

X

X

.032”

Differential

lube

.0

5

9

”

.

2"

03

B

1

9
B

1

9

n.c.

S2

"OFF"

n.o.

X

X

X

X

X

X

.035" balance

orifice thru valve

P

R N D 3 L

50-42LE

2

4

9

W

2

.0

3

9

"

C

B

4

C

B

5

.0

5

0

"

.0

4

2

"

W

2

W

2

X

X

.039"

.070"

.0

3

9

"

.0

3

9

"

X

X

.0

3

0

"

C

B

7

DRIVE POSITION

3rd GEAR

B3 BRAKE

(LOW/REV. BRAKE)

C2 CLUTCH

(DIRECT CLUTCH)

LEGEND

LINE PRESSURE

EPC PRESSURE

SECONDARY REG.
PRESSURE

TO SUMP

SOLENOID PRESSURE

COOLER PRESSURE

CONNECTED CIRCUIT

W1- W2 SPACER
PLATE DIFFERENCES

** THIS HOLE IS USED ONLY

ON CHECK VALVE VERSIONS

ACCUMULATOR BACK PRESH.

C1 CLUTCH

(FORWARD CLUTCH)

B1 BRAKE

(OVERRUN BRAKE)

B2 BRAKE

(INT. BRAKE)

C3 CLUTCH

(UNDERDRIVE CLUTCH)

.058” ORIFICE

S1

"OFF"

VIEWED FROM THE

WORM TRACK SIDE

n.c.

STH (epc)

SL

"OFF"

X

X

X

X

X

X

X

X

X

X

X

.039" balance

orifice thru valve

PRESSURE CONTROL

SOLENOID REG. VALVE

MANUAL VALVE

2-3 SHIFT

VALVE

3-4 SHIFT

VALVE

1-2 SHIFT

VALVE

NEUTRAL CONTROL

VALVE (Blocked)

CLUTCH MODULATOR

VALVE

TCC SOLENOID

REGULATOR VALVE

PRESSURE REGULATOR

VALVE

SECONDARY REGULATOR

VALVE

LOCK-UP CONTROL

VALVE

C1 ACCUMULATOR

LOW COAST

MODULATOR

VALVE (B3)

LEGEND

B1 ACCUMULATOR

VALVE

ACCUMULATOR

CONTROL

VALVE

B2 ACCUMULATOR

VALVE

B2

ACCUMULATOR

C2 ACCU-

MULATOR

C2 ACCU-

MULATOR

VALVE

C3 ACCUMULATOR

VALVE

OUTPUT

SUCTION

TCC

RELEASE SIDE

TCC

APPLY SIDE

THE RETURN

LINE IS LOCATED

IN THE FRONT PAN

CLUTCH PACKS

C3

ACCUMULATOR

.038" ORIFICE

.058" CROSS-

DRILLED HOLE

.0

3

0

"

.0

3

0

"

2

2

6

W

1

.0

5

1

"

VOID

C-3

C-3

ATF

COOLER

X

X

B4 BRAKE BAND

"OFF"

B4 SERVO

B4 ACCUMULATOR

PISTON

B

-4

A

-2

.0

3

2

"

.0

8

6

"

.0

4

0

"

.0

3

5

"

.0

3

9

"

.0

4

2

"

**

.0

3

9

"

C

B

3

C

B

6

.0

7

8

"

Rear

lube

Central

lube

Pressure

port

503L

SUMP

X

X

PUMP

TORQUE

CONVERTER

B-1

C

B

1

C

B

2

C

B

8

C

B

9

C

B

1

0

X

.047"

X

X

COOLER

RELIEF

X

03

.

2"

X

X

X

X

503L

.0

4

0

"

X

X

X

X

.032”

Differential

lube

.0

5

9

”

.0 2"

3

B

1

9
B

1

9

n.c.

S2

"OFF"

n.o.

X

X

X

X

X

X

.035" balance

orifice thru valve

P

R N D 3 L

50-42LE

2

4

9

W

2

.0

3

9

"

C

B

4

C

B

5

.0

5

0

"

.0

4

2

"

W

2

W

2

X

X

.039"

.070"

.0

3

9

"

.0

3

9

"

X

X

.0

3

0

"

C

B

7

DRIVE POSITION

4th GEAR

B3 BRAKE

(LOW/REV. BRAKE)

LEGEND

LINE PRESSURE

EPC PRESSURE

SECONDARY REG.
PRESSURE

TO SUMP

SOLENOID PRESSURE

COOLER PRESSURE

CONNECTED CIRCUIT

W1- W2 SPACER
PLATE DIFFERENCES

** THIS HOLE IS USED ONLY

ON CHECK VALVE VERSIONS

ACCUMULATOR BACK PRESH.

C1 CLUTCH

(FORWARD CLUTCH)

B1 BRAKE

(OVERRUN BRAKE)

B2 BRAKE

(INT. BRAKE)

C3 CLUTCH

(UNDERDRIVE CLUTCH)

C2 CLUTCH

(DIRECT CLUTCH)

.059"

.058” ORIFICE

S1

"OFF"

VIEWED FROM THE

WORM TRACK SIDE

n.c.

STH (epc)

SL

"ON"

X

X

X

X

X

X

X

X

X

X

X

.039" balance

orifice thru valve

PRESSURE CONTROL

SOLENOID REG. VALVE

MANUAL VALVE

2-3 SHIFT

VALVE

3-4 SHIFT

VALVE

1-2 SHIFT

VALVE

NEUTRAL CONTROL

VALVE (Blocked)

CLUTCH MODULATOR

VALVE

TCC SOLENOID

REGULATOR VALVE

PRESSURE REGULATOR

VALVE

SECONDARY REGULATOR

VALVE

LOCK-UP CONTROL

VALVE

C1 ACCUMULATOR

LOW COAST

MODULATOR

VALVE (B3)

LEGEND

B1 ACCUMULATOR

VALVE

ACCUMULATOR

CONTROL

VALVE

B2 ACCUMULATOR

VALVE

B2

ACCUMULATOR

C2 ACCU-

MULATOR

C2 ACCU-

MULATOR

VALVE

C3 ACCUMULATOR

VALVE

OUTPUT

SUCTION

TCC

RELEASE SIDE

TCC

APPLY SIDE

THE RETURN

LINE IS LOCATED

IN THE FRONT PAN

CLUTCH PACKS

C3

ACCUMULATOR

.038" ORIFICE

.058" CROSS-

DRILLED HOLE

.0

3

0

"

.0

3

0

"

2

2

6

W

1

.0

5

1

"

VOID

C-3

C-3

ATF

COOLER

X

X

B4 BRAKE BAND

"OFF"

B4 SERVO

B4 ACCUMULATOR

PISTON

B

-4

A

-2

.0

3

2

"

.0

8

6

"

.0

4

0

"

.0

3

5

"

.0

3

9

"

.0

4

2

"

**

.0

3

9

"

C

B

3

C

B

6

.0

7

8

"

Rear

lube

Central

lube

Pressure

port

503L

SUMP

X

X

PUMP

TORQUE

CONVERTER

B-1

C

B

1

C

B

2

C

B

8

C

B

9

C

B

1

0

.059"

X

.047"

X

X

X

X

COOLER

RELIEF

X

0

. 32"

X

X

X

X

503L

.0

4

0

"

X

X

X

X

.032”

Differential

lube

.0

5

9

”

.

2"

03

B

1

9
B

1

9

n.c.

S2

"OFF"

n.o.

X

X

X

X

X

.035" balance

orifice thru valve

P

R N D 3 L

50-42LE

2

4

9

W

2

.0

3

9

"

C

B

4

C

B

5

.0

5

0

"

.0

4

2

"

W

2

W

2

X

X

.039"

.070"

.0

3

9

"

.0

3

9

"

X

X

.0

3

0

"

C

B

7

DRIVE POSITION

4th GEAR TCC "ON"

B3 BRAKE

(LOW/REV. BRAKE)

LEGEND

LINE PRESSURE

EPC PRESSURE

SECONDARY REG.
PRESSURE

TO SUMP

SOLENOID PRESSURE

COOLER PRESSURE

CONNECTED CIRCUIT

W1- W2 SPACER
PLATE DIFFERENCES

** THIS HOLE IS USED ONLY

ON CHECK VALVE VERSIONS

ACCUMULATOR BACK PRESH.

C1 CLUTCH

(FORWARD CLUTCH)

B1 BRAKE

(OVERRUN BRAKE)

B2 BRAKE

(INT. BRAKE)

C3 CLUTCH

(UNDERDRIVE CLUTCH)

C2 CLUTCH

(DIRECT CLUTCH)

.058” ORIFICE

S1

"ON"

VIEWED FROM THE

WORM TRACK SIDE

n.c.

STH (epc)

SL

"OFF"

X

X

X

X

X

X

X

X

X

X

X

.039" balance

orifice thru valve

PRESSURE CONTROL

SOLENOID REG. VALVE

MANUAL VALVE

2-3 SHIFT

VALVE

3-4 SHIFT

VALVE

1-2 SHIFT

VALVE

NEUTRAL CONTROL

VALVE (Blocked)

CLUTCH MODULATOR

VALVE

TCC SOLENOID

REGULATOR VALVE

PRESSURE REGULATOR

VALVE

SECONDARY REGULATOR

VALVE

LOCK-UP CONTROL

VALVE

C1 ACCUMULATOR

LOW COAST

MODULATOR

VALVE (B3)

LEGEND

B1 ACCUMULATOR

VALVE

ACCUMULATOR

CONTROL

VALVE

B2 ACCUMULATOR

VALVE

B2

ACCUMULATOR

C2 ACCU-

MULATOR

C2 ACCU-

MULATOR

VALVE

C3 ACCUMULATOR

VALVE

OUTPUT

SUCTION

TCC

RELEASE SIDE

TCC

APPLY SIDE

THE RETURN

LINE IS LOCATED

IN THE FRONT PAN

CLUTCH PACKS

C3

ACCUMULATOR

.038" ORIFICE

.058" ORIFICE

.058" CROSS-

DRILLED HOLE

.0

3

0

"

.0

3

0

"

2

2

6

W

1

.0

5

1

"

VOID

C-3

C-3

ATF

COOLER

X

X

B4 BRAKE BAND

"OFF"

B4 SERVO

B4 ACCUMULATOR

PISTON

B

-4

A

-2

.0

3

2

"

.0

8

6

"

.0

4

0

"

.0

3

5

"

.0

3

9

"

.0

4

2

"

**

.0

3

9

"

C

B

3

C

B

6

.0

7

8

"

Rear

lube

Central

lube

Pressure

port

503L

SUMP

X

X

PUMP

TORQUE

CONVERTER

B-1

C

B

1

C

B

2

C

B

8

C

B

9

C

B

1

0

.059"

X

.047"

X

X

COOLER

RELIEF

X

.032"

X

X

X

X

503L

.0

4

0

"

X

X

X

X

.032”

Differential

lube

.0

5

9

”

.

2

0

"

3

B

1

9
B

1

9

n.c.

S2

"OFF"

n.o.

X

X

X

X

X

X

.035" balance

orifice thru valve

P

R N D 3 L

50-42LE

2

4

9

W

2

.0

3

9

"

C

B

4

C

B

5

.0

5

0

"

.0

4

2

"

W

2

W

2

X

X

.039"

.070"

.0

3

9

"

.0

3

9

"

X

X

.0

3

0

"

C

B

7

MANUAL "3" POSITION

3rd GEAR

B3 BRAKE

(LOW/REV. BRAKE)

C2 CLUTCH

(DIRECT CLUTCH)

LEGEND

LINE PRESSURE

EPC PRESSURE

SECONDARY REG.
PRESSURE

TO SUMP

SOLENOID PRESSURE

COOLER PRESSURE

CONNECTED CIRCUIT

W1- W2 SPACER
PLATE DIFFERENCES

** THIS HOLE IS USED ONLY

ON CHECK VALVE VERSIONS

ACCUMULATOR BACK PRESH.

C1 CLUTCH

(FORWARD CLUTCH)

B1 BRAKE

(OVERRUN BRAKE)

B2 BRAKE

(INT. BRAKE)

C3 CLUTCH

(UNDERDRIVE CLUTCH)

LOW COAST MOD. PRESH.