1

2

FIGURE 1. ELECTRICAL SYSTEM SCHEMATIC (1 of 2)

WIRE

COLOR

GAGE

A

BLUE

16

B

BLUE

16

C

GREEN

16

D

YELLOW

16

E

BLACK

10

F

RED

16

G

BLACK

16

J

RED

16

K

BLACK

16

L

YELLOW

16

M

BLUE

16

N

WHITE

10

Q

WHITE

16

R

ORANGE

16

S

RED

16

T

GREEN

16

U

GREEN

16

AB

ORANGE

16

AC

BLUE

16

AD

RED

16

AE

BROWN

16

AF

WHITE

16

AG

WHITE

16

AH

BLACK

16

AJ

YELLOW

16

AK

BROWN

16

AL

RED

16

AM

GREEN

16

AN

RED

16

AP

ORANGE

16

AS

BLACK

16

AV

WHITE

16

AW

RED

16

AX

BLACK

16

AY

BROWN

16

AZ

GREEN

16

DP

YELLOW

16

DR

YELLOW

16

DS

RED

16

DT

ORANGE

16

DU

BROWN

16

DV

GREEN

16

DW

BLUE

16

DX

BLACK

16

DY

BLACK

16

DZ

BROWN

16

AA

ORANGE

16

BB

GREEN

6

DD

BROWN

16

EE

BLACK

16

GG

RED

16

HH

ORANGE

16

JJ

BLUE

16

KK

BROWN

16

LL

BLACK

6

MM

WHITE 16

NN

BLACK

16

PP

RED

16

QQ

BLACK

16

RR

YELLOW

16

SS

GREEN

16

TT

ORANGE

16

UU

BLACK

16

VV

BROWN

16

WW

BLACK

16

XX

YELLOW

16

YY

GREEN

16

ZZ

GREEN

16

BC

BLUE

16

BD

YELLOW

16

BG

BROWN

16

BH

YELLOW

16

BJ

GREEN

16

BK

GREEN

16

BL

GREEN

16

BN

BLACK

16

BP

YELLOW

16

BQ

YELLOW

16

BR

BROWN

16

BS

RED

16

BT

WHITE

16

BU

BLACK

16

BV

RED

16

BW

BLACK

16

BY

GREEN

16

BZ

GREEN

16

CD

BLUE

16

CE

BLACK

16

CF

BLACK

16

CG

BROWN

16

CH

ORANGE

16

CJ

BLUE

16

CK

ORANGE

16

CL

GREEN

16

CX

BLACK

16

CY

BLACK

16

EA

YELLOW

16

EB

GREEN

16

EC

YELLOW

16

ED

GREEN

16

EF

BLUE

16

EG

WHITE

16

EH

BLACK

16

EJ

BLACK

16

EK

BLACK

16

EL

BLUE

16

EM

YELLOW

16

EN

WHITE

16

EP

ORANGE

16

ER

BLACK

16

ES

WHITE

16

ET

WHITE

16

EU

WHITE

16

EV

WHITE

16

EW

GREEN

16

FA

BLUE

16

FB

BLACK

16

FD

BLACK

16

FE

WHITE

16

FG

WHITE

16

FK

BROWN

16

FL

BLACK

16

FM

RED

16

FP

BLACK

16

FR

BLACK

16

FS

BROWN

16

FT

BLACK

16

FU

BLACK

16

FV

BLUE

16

FX

YELLOW

16

GA

BLACK

16

GB

GREEN

16

GC

YELLOW 16

GD

GREEN

16

GE

GREEN

16

GF

YELLOW

16

GH

GREEN

16

GJ

WHITE

16

GK

WHITE

16

KQ

WHITE

16

KR

WHITE

16

ELECTRICAL WIRE CODES

CONTAINER ATTACHMENT
WIRE CODES

AA

BLACK

16

DD

BLUE

16

FF

WHITE

16

LL

GREEN

16

MM

WHITE

16

2

BLK or GRN

16

3

BLK or GRN

16

5

BLACK

16

6

BLK or WHT

16

7

BLK or WHT

16

WIRE

COLOR

GAGE

DA

BLUE

16

DB

RED

16

DC

YELLOW

16

DE

BLACK

16

DF

GREEN

16

DG

WHITE

16

DH

BROWN

16

DJ

BROWN

16

DK

YELLOW

16

DL

ORANGE

16

DM

GREEN

16

DN

RED

16

WIRE

COLOR

GAGE

WIRE

COLOR

GAGE

3

4

FIGURE 1. ELECTRICAL SYSTEM SCHEMATIC (2 of 2)

5

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

Y
Z

31

31

31

31

31

31

31

31

31

F

B

B

A

A

E

52

53

54

30

KK

(H)

MM
(J)

SS (U)

RR (L)

S

JJ (T)

PP

GG

TT

TILT

LIFT

LIFT

LOWER

LOWER

NOTE: Letters by lines are identification codes.
Early production codes are in brackets.

6

12427

FIGURE 2. HYDRAULIC SYSTEM SCHEMATIC

1. LIFT CYLINDER (2)
2. LOWERING CONTROL VALVE (2)
3. TILT CYLINDER (4)
4. TILT RELIEF VALVE, 14.0 MPa (2030 psi)
5. STEERING CONTROL UNIT
6. STEERING FLOW AMPLIFIER
7. STEERING CYLINDER
8. RELIEF VALVE (STEERING)
9. CHECK PORT, 22.1 MPa (3200 psi)

10. HYDRAULIC MANIFOLD

11. REMOTE CONTROL VALVE

12. TWO SPOOL CONTROL VALVE
13. CHECK PORT, 17.2 MPa (2500 psi)
14. CHECK PORT, 17.2 MPa (2500 psi)
15. SINGLE SPOOL CONTROL VALVE
16. TANDEM HYDRAULIC PUMP
17. HYDRAULIC PUMP (AUXILIARY, MAST)
18. RESTRICTION VALVE, 1.4 MPa (200 psi)

STANDARD AND SIDE–SHIFT CARRIAGES

CONTAINER ATTACHMENT INSTALLATION

32. EXTENSION CYLINDER (2)
33. TWIST LOCK CYLINDER (2)
34. INTERLOCK VALVE,

TWIST LOCK (4)

35. RELIEF VALVE (TWIST LOCKS)
36. SIDE–SHIFT CYLINDER
37. FLOW DIVIDER
38. RELIEF VALVE (EXTEND/RETRACT)
39. RELIEF VALVE (RH SLEW)
40. RELIEF VALVE (LH SLEW)
41. SLEW CYLINDER, LH
42. SLEW CYLINDER, RH
43. RELIEF VALVE, FORK POSITIONERS (4)
44. FORK POSITIONER CYLINDER, LH
45. FORK POSITIONER CYLINDER, RH
46. SOLENOID VALVE, TWIST LOCK
47. SOLENOID VALVE, EXTEND/RETRACT
48. SOLENOID VALVE, SIDE–SHIFT
49. SOLENOID VALVE, LH FORK

POSITIONER/SLEW

50. SOLENOID VALVE, RH FORK

POSITIONER/SLEW

51. MANIFOLD, SOLENOID VALVE
52. LIFT CONTROL LEVER
53. TILT CONTROL LEVER
54. TO LOW PRESSURE WARNING SWITCH

19. OIL FILTER (2)
20. HYDRAULIC TANK
21. PRESSURE REDUCTION VALVE
22. CHECK PORT (BRAKES)

10.3 MPa (1500 psi)

23. PRESSURE REDUCTION VALVE
24. CHECK PORT (PILOT CIRCUIT)

2.1 MPa (300 psi)

25. CHECK VALVE
26. CHECK PORT (AUXILIARY) –

22.1 MPa (3200 psi)

27. RELIEF VALVE
28. CHECK VALVE
29. ATTACHMENT CONTROL VALVE
30. TWO–SPEED CARTRIDGE
31. TO/FROM BRAKE CIRCUIT

34

34

37

38

33

32

32

33

35

40

36

41

44

43

39

42

45

43

T

U

N

P

G

H

K

J

L

M

50

46

47

48

49

51

Y
Z

N

P

P

N

G

H

K

J

T

U

J

K

L

L

M

M

7

FIGURE 3. BRAKE SYSTEM SCHEMATIC

1. TANDEM HYDRAULIC PUMP
2. ACCUMULATOR CHARGE VALVE
3. PRESSURE REDUCTION VALVE

2.1 MPa (300 psi)

4. ACCUMULATOR
5. PRESSURE REDUCTION VALVE

10.3 MPa (1500 psi)

6. CHECK PORT, 10.3 MPa (1500 psi)
7. PARKING BRAKE VALVE
8. INCHING/BRAKE PEDAL VALVE
9. INCHING VALVE

10. PILOT VALVE

11. LOW BRAKE PRESSURE SWITCH

12. LOW PRESSURE ALARM
13. LOW BRAKE PRESSURE LIGHT
14. BRAKE PRESSURE SWITCH
15. TRANSMISSION LOCK OUT
16. SERVICE BRAKE PEDAL VALVE

17. SHUTTLE VALVE
18. BRAKE LIGHT SWITCH
19. INCHING CYLINDER
20. PARKING BRAKE CALIPER
21. SERVICE BRAKE CALIPER
22. BRAKE MANIFOLD
23. SEQUENCE VALVE
24. AUXILIARY SERVICE BRAKE CALIPER
25. RELAY VALVE
26. TO LIFT CIRCUIT
27. TO STEERING CIRCUIT
28. TO ATTACHMENT CONTROL VALVE
29. CHECK PORT, 2.1 MPa (300 psi)
30. TO REMOTE CONTROL VALVE
31. CHECK PORT
32. CHECK PORT, 2.6 MPa (380 psi)
33. CHECK PORT, 13.8 MPa (2000 psi)

ELECTRICAL WIRE

• • • • • •

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

D

D

A

TT

HH

CC

V

EE

AA

MM (J)

NOTE: Letters by lines are identification codes.
Early production codes are in brackets.

FF

32

33

8

FIGURE 4. HYDRAULIC SCHEMATIC FOR THE TRANSMISSION (NEUTRAL)

12075

23

21

19

17

15

14

13

12

11

10

1

2

3

4

5

7

8

9

1. SUMP
2. SUCTION SCREEN
3. OIL PUMP
4. FILTER
5. PRESSURE REGULATOR VALVE

16

18

20

22

25

24

25

24

1

6

RANGE

F3

F2

F1

N

R1

R2

R3

SOLENOID

1

2

F

R

CLUTCH

FWD

FWD, 2ND

FWD, 1ST

REV, 1ST

REV, 2ND

REV

6. TORQUE CONVERTER RELIEF

VALVE

7. TORQUE CONVERTER
8. OIL COOLER
9. LUBRICATION CIRCUIT

10. INCHING VALVE

11. FIRST SPEED SOLENOID

12. SECOND SPEED SOLENOID
13. REVERSE SOLENOID
14. FORWARD SOLENOID
15. FORWARD SPOOL
16. FORWARD CLUTCH
17. REVERSE SPOOL
18. REVERSE CLUTCH
19. SECOND SPEED SPOOL
20. THIRD SPEED CLUTCH
21. FIRST SPEED SPOOL
22. SECOND SPEED CLUTCH
23. FIRST SPEED CLUTCH
24. ACCUMULATOR
25. REGULATOR SPOOL

9

FIGURE 5. ELECTRICAL SCHEMATIC FOR THE TRANSMISSION

1. BATTERY
2. STARTER
3. BATTERY DISCONNECT SWITCH
4. REVERSE ALARM
5. TRANSMISSION CONTROL VALVE

6. SOLENOID SWITCH
7. SHIFT CONTROL VALVE
8. KEY SWITCH
9. TRANSMISSION LOCKOUT RELAY

10. BRAKE PRESSURE AND TRANSMISSION

LOCKOUT SWITCH

12721

1

2

3

4

5

6

7

8

9

10

DH

DF

DA

DJ

AA

DH

E

AZ

C

DE

DG

B

EJ

GJ

DA

DA

DB

DC

DK

DM

B =

BLUE

16

C =

GREEN

16

AA = ORANGE

16

AZ = GREEN

16

DA = BLUE

16

DB = RED

16

WIRE CODES

DC = YELLOW

16

DE = BLACK

16

DF = GREEN

16

DG = WHITE

16

DH = BROWN

16

DJ = BROWN

16

DK = YELLOW

16

DM = GREEN

16

DH = BROWN

16

E =

BLACK

16

EJ = BLACK

16

GJ = WHITE

16

1
2
F
R

C
B
E
A
D

E
G
F
A
B
C
D