Volvo 50-42LE transmission. Service manual - part 8

9151

AUTOMATIC TRANSMISSION SERVICE GROUP

Technical Service Information

Copyright © 2004 ATSG

700U

BELLHOUSING

REAR VIEW

AIR

VENT

703U

FROM

PIPE#1

701U

PIPE#1

702U

TO PIPE#1

704U

705U*

705U* THERE IS A SEALING RING IN THIS LOCATION THAT HAS

A .055" GAP THAT PROVIDES A CONTROLLED LEAK INTO THE BEARING

31

Figure 29

AUTOMATIC TRANSMISSION SERVICE GROUP

Technical Service Information

Copyright © 2004 ATSG

DIFFERENTIAL LUBE

.034"

ORIFICE

6

0

1

V

PIPE #2

PIPE #1

701U

6

0

1

F

6

0

1

F

6

0

1

F

6

0

1

R

6

0

2

R

702U

704U

2 -.042"

ORIFICES IN PLUG

705U*

703U

PIPE #1

705U* THERE IS A SEALING RING IN THIS LOCATION THAT HAS

A .055" GAP THAT PROVIDES A CONTROLLED LEAK INTO THE BEARING

32

Figure 30

AUTOMATIC TRANSMISSION SERVICE GROUP

Technical Service Information

Copyright © 2004 ATSG

800U

REAR COVER

FRONT VIEW

802U

804U

805U

803U

801U

C1

ACCUMULATOR

33

Figure 31

X

X

X

X

X

X

X

X

X

X

X

MANUAL VALVE

P R N D 3 L

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

LOW COAST

MODULATOR

 VALVE (B3)

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

C3

ACCUMULATOR

.038" ORIFICE

.058" CROSS-

DRILLED HOLE

3

0

6

U

3

0

8

U

3

0

9

U

3

1

0

U

3

3

8

U

3

2

5

L

3

0

6

L

3

0

8

L

3

2

1

L

3

2

4

L

3

0

8

L

3

3

0

L

3

2

2

L

3

1

0

L

3

0

9

L

3

1

9

L

3

2

1

L

3

2

2

L

3

2

3

L

3

2

2

L

3

2

3

L

5

2

2

U

3

0

9

L

3

0

7

L

3

1

4

L

3

1

5

L

3

1

6

L

3

1

7

L

3

1

8

L

3

1

9

L

3

2

0

L

3

1

6

U

5

0

3

U

5

0

9

U

5

1

0

U

5

0

8

U

5

1

2

U

5

0

8

U

5

1

3

U

540U

541U

542U

5

1

4

U

5

1

7

U

5

1

6

U

5

1

8

U

5

1

5

U

5

2

2

U

5

4

4

U

5

4

6

U

5

4

8

U

5

4

3

U

5

0

4

U

5

1

1

U

5

0

6

U

5

0

7

U

5

0

3

U

5

0

3

U

5

0

3

U

5

0

3

U

5

0

6

U

5

2

5

U

5

0

2

L

3

1

8

U

3

2

0

L

3

1

1

U

3

4

1

U

3

4

2

U

317U

3

1

2

U

3

1

3

U

3

3

3

U

3

3

4

U

3

3

6

U

3

3

9

U

3

3

4

U

3

4

1

U

3

3

7

U

3

3

3

U

3

2

7

U

3

1

2

U

3

1

4

U

3

2

5

U

3

2

6

U

3

3

0

U

3

3

0

U

3

3

0

U

3

2

1

U

3

2

2

U

3

2

1

U

3

0

7

U

3

3

5

U

2

0

2

.0

3

0

"

2

0

7

.0

4

0

"

2

2

6

W

1

2

4

9

W

2

3

2

3

U

VOID

C-3

B-1

C-3

ATF

COOLER

602F

611F

6

0

3

V

6

1

6

V

4

0

1

4

0

2

4

0

3

4

4

3

4

5

0

4

5

1

.0

8

6

"

4

5

2

4

8

8

.0

4

0

"

4

0

4

4

1

0

4

1

5

4

4

9

4

1

6

.0

3

5

"

4

1

3

4

1

1

4

1

4

4

1

2

4

3

8

4

0

6

4

0

9

4

3

7

.0

3

9

"

4

3

6

4

0

8

4

0

7

4

2

1

.0

5

9

”

4

2

2

4

1

8

4

8

7

4

1

9

.0

4

2

"

4

2

3

**

4

2

5

4

2

6

4

2

7

4

2

0

4

2

4

.0

3

9

"

4

2

8

4

2

9

4

3

0

4

3

1

4

3

3

4

3

4

4

3

5

C

B

3

C

B

4

C

B

6

C

B

5

4

3

2

.0

7

8

"

4

1

7

4

3

9

4

4

1

4

4

0

.0

5

0

"

4

4

2

.0

4

2

"

3

0

2

L

3

0

3

L

3

2

8

L

3

0

3

U

3

0

3

U

3

4

3

U

3

4

5

U

3

4

4

U

3

0

4

U

3

1

1

L

3

1

2

L

3

1

4

U

3

4

8

W

2

3

4

9

W

2

3

2

4

U

3

3

0

U

3

1

9

U

3

0

4

U

3

3

0

U

3

1

5

U

3

0

4

U

3

2

8

U

3

2

8

U

3

2

9

U

3

3

1

U

3

2

9

U

3

3

2

U

5

2

5

U

609V

6

0

8

F

P

u

m

p

610V

Rear

lube

606F

615V

617V

609F

THRU
PUMP

THRU

PUMP/TURBINE

3

0

4

L

3

3

3

L

3

2

6

L

3

2

9

L

3

3

0

L

3

0

1

U

C

O

V

E

R

3

0

2

U

5

0

1

U

5

2

7

U

5

2

8

U

5

0

2

U

5

2

9

U

5

3

4

U

5

3

5

U

505L

503L

5

3

7

U

5

4

7

U

5

3

6

U

5

3

0

U

5

3

8

U

5

5

1

U

5

3

2

U

5

1

9

U

5

2

0

U

5

2

4

U

5

2

6

U

5

4

0

U

5

0

7

L

5

0

8

L

509L

510L

511L

512L

5

2

1

U

5

4

9

U

5

0

1

L

603F

SUMP

X

X

PUMP

TORQUE

CONVERTER

C

B

1

C

B

2

C

B

8

C

B

9

C

B

1

0

3

1

3

L

3

0

1

L

X

339L

472

473

340L

341L

342L

343L

344L

345L

347U

CB7

475

476 477

480

481

.047"

482

483

484

485

486

479

.032"

478

545U

474

DIFFERENTIAL LUBE

.034"

ORIFICE

6

0

1

V

PIPE #2

PIPE #1

701U

6

0

1

F

6

0

1

F

6

0

1

F

6

0

1

R

6

0

2

R

702U

704U

2 -.042"

ORIFICES IN PLUG

705U*

703U

PIPE #1

.058” ORIFICE

9
B

1

9
B

1

S1

"OFF"

VIEWED FROM THE

WORM TRACK SIDE

VIEWED FROM THE

WORM TRACK SIDE

n.c.

n.c.

S2

"ON"

STH (epc)

SL

"OFF"

n.o.

X

X

X

X

X

X

X

X

X

101U (side)

.035" balance 

orifice thru valve

.039" balance 

orifice thru valve

PRESSURE CONTROL

SOLENOID REG. VALVE

C1 ACCUMULATOR

LEGEND

PARK POSITION

VALVE BODY MAPPING

LINE PRESSURE

EPC PRESSURE

TO SUMP

SOLENOID 1 PRESSURE

COOLER PRESSURE

CONNECTED CIRCUIT

W1- W2 SPACER
PLATE DIFFERENCES

SECONDARY REG.
 PRESSURE

CLUTCH PACKS

B1 BRAKE

B2 BRAKE

B3 BRAKE

C2 CLUTCH

C1 CLUTCH

C3 CLUTCH

B4 BRAKE BAND

"ON"

B4 SERVO

B4 ACCUMULATOR

PISTON

(UNDERDRIVE CLUTCH)

(FORWARD CLUTCH)

(DIRECT CLUTCH)

(LOW/REV. BRAKE)

(INT. BRAKE)

(OVERRUN BRAKE)

1

0

1

L

1

0

2

L

104L

1

0

3

L

103U

102U

2

0

1

2

3

3

2

3

5

2

5

0

W

2

2

3

0

2

3

1

2

3

2

2

1

3

2

1

4

1

0

7

L

1

0

9

L

1

1

1

L

1

0

4

L

1

0

3

L

1

1

8

L

1

2

0

L

1

1

2

L

1

1

3

L

1

1

4

L

1

2

8

L

1

1

5

L

1

1

6

L

1

1

7

L

1

1

9

L

1

2

9

L

1

2

1

L

1

2

2

L

1

0

8

L

1

1

0

L

1

2

3

L

1

2

4

L

1

2

5

L

1

2

6

L

1

2

7

L

1

0

7

U

1

0

8

U

1

0

4

U

1

0

5

U

1

0

6

U

3

0

4

U

2

3

3

.0

3

0

"

2

0

4

.0

3

0

"

2

0

6

2

0

8

2

0

9

2

1

0

2

0

5

2

1

5

2

1

6

2

3

9

2

4

0

2

4

1

2

4

2

2

4

6

2

4

4

2

4

5

2

4

7

.0

3

2

"

2

4

8

.0

3

2

"

2

1

7

2

3

6

2

1

8

2

1

1

2

0

3

2

3

7

2

3

8

2

1

2

2

1

9

2

2

0

2

4

2

 

2

4

3

2

2

2

2

2

3

2

2

4

2

2

5

2

2

7

2

2

8

2

2

9

2

3

4

2

2

1

.0

5

1

"

1

0

5

L

1

1

9

L

1

0

6

L

*

**

SEE NOTE IN THE PASSAGE

 IDENTIFICATION

THIS HOLE IS USED ONLY

ON CHECK VALVE VERSIONS

B

-4

A

-2

PIPE#3

607F

4

0

5

4

4

4

4

4

5

4

5

3

4

5

4

.0

3

2

"

4

5

5

4

4

6

.0

3

9

"

4

4

7

.0

3

9

"

4

4

8

.0

3

9

"

604V

605V

608V

5

0

2

L

606V

614V

6

1

2

V

Central

lube

606R 802U

8

0

4

U

604R

605R

801U

802U

604F

605F

603R

607R

608R

607V

Pressure

port

3

0

5

U

3

4

0

U

3

4

3

U

3

4

5

U

5

2

3

U

5

5

0

U

5

3

3

U

5

0

4

L

611V

613V

602V

X

X

X

X

X

3

0

5

L

3

2

7

L

3

2

8

L

3

3

1

L

3

3

2

L

X

X

456

457 458

531U

346L

334L

335L

346U

336L

337L

338L

539U

506L

459

.070"

460 461 462 463 464

465

.039"

466

.059"

468

469 467

489 490

470

471

X

X

X

503L

529U