Re ar axle front ax l e – JLG 740AJ Parts Manual User Manual

Page 240

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6-2

740AJ

3121161

SECTION 6 HYDRAULIC

FIGURE 6-1. DRIVE HYDRAULIC DIAGRAM (PRIOR TO SN 0300137975)

1

2

3

C

C

C

LEF

T

R

E

AR

DR

IV

E MO

TOR

LE

F

T

F

R

ONT

DRI

V

E

MO

T

O

R

DU

A

L

REV

E

R

S

E

F

L

O

W

DI

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DE

R

/CO

MBI

N

E

R

FOR

W

A

R

D

FL

OW DI

V

ID

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R

/

COM

B

IN

ER

1

M3

M

4

M2

M1

B

FR

E

E

FL

O

W

A

5

6

1

4

P

3

42

5

RE

AR

AXLE

FRONT

AX

L

E

RIGH

T

REAR

DR

IV

E MO

TOR

RIG

H

T FRONT

DRI

V

E

MO

T

O

R

C

C

C

BR

A

K

E

BRA

K

E

RE

AR

POR

T

#

5

RE

V

E

RS

E

FR

O

N

T

POR

T

#

7

CA

SE

DR

A

IN

RE

AR

POR

T

#

1

PO

R

T

#6

FO

R

W

A

R

D

FR

O

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T

PO

R

T

#1

RE

AR

PO

R

T

#

7

CAS

E

DR

AIN

AU

X

PO

R

T

#

5

FR

ON

T

POR

T

#

5

RE

AR

PO

R

T

#

2

FR

O

N

T

POR

T

#2

X

X

X

X

X

X

XX

X

X

X

X

X

X

X

X

X

X

X

XX

X

X

X

X

X

X

BR

A

K

E

BRA

K

E

S

S

S

S

B

B

DR

IVE

PU

M

P

AU

X

PU

MP

SU

CT

ION

CA

SE

DRAIN

RETUR

N

FI

L

T

ER

O

U

T

HYDRA

U

L

IC

OIL T

A

N

K

D

R

IV

E

P

U

M

P

SUC

T

IO

N

CYL

IN

D

E

R

P

U

M

P

SU

C

T

IO

N

BR

A

K

E

VA

L

V

E

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CTIO

N

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MP

CHAR

G

E

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TE:

RE

MO

VE

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R

ING

P

L

U

G

S &

I

N

ST

AL

L

#14

U

PPE

R

CA

SE

POR

T

LO

W

E

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CA

SE

PO

RT

B

B

B

A

A

A

2-S

P

EED

VA

L

V

E

X

AT

B

S

A

A

SW

IV

EL

PORTI

N

G

***IMPORT

A

NT*

*

*

TH

IS

HO

S

E

M

U

S

T

CON

N

E

C

T TO TH

E R

E

A

R

PORT ON

D

R

IVE PUMP

&

TO THE

IN

LE

T PORT

OF CHA

R

GE FI

LT

ER.

***IMPORT

A

NT**

*

FOR

CIRCU

IT TROU

BL

E SH

OOTING

RE

F

E

R

T

O

H

Y

D

R

A

U

L

IC

SC

HEMA

TI

C

2

7923

51

X

-- DEN

O

TE

S A NON-STRAIGHT

HOSE END

7

9

3

3

9

7

6

38

37

39

38

13

12

37

3

9

3

4

4

11

25

49

87

24

48

48

1

2

2

1 2

1 2

1 2

1 2

1

2

6

2 78

2 78

44

43

52

40

45

35

3

5

36

4

32

1

4

3

2

61

62

14

33

68

27

9236

4_D

1

19

15

18

65

69

71

29

72

73

20

70

7

17

16

1

66

25

11

3

26

27

34

19

63

29

64

4

30

30

60

28

28

31

55

51

13

53

52

11

11

7

50

50

51

12

56

57

54

59

58

8

22

2

2

78

78

9

9

6

6

10

1 19

21

23

14

41

5

47

RE

F.

HYD

.

LO

C

K

O

U

T

D

IA

.

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