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Jlg 20VP (3120728) Service Manual manuals

Owner’s manuals and user’s guides for Special machinery Jlg 20VP (3120728) Service Manual.
We providing 1 pdf manuals Jlg 20VP (3120728) Service Manual for download free by document types: User Manual


Jlg 20VP (3120728) Service Manual User Manual (104 pages)


Brand: Jlg | Category: Special machinery | Size: 4.31 MB |

 

Table of contents

June 14 2001

1

FOREWORD

3

A. GENERAL

5

B. HYDRAULIC SYSTEM SAFETY

5

C. MAINTENANCE

5

EFFECTIVITY CHANGES

7

EFFECTIVITY PAGE

8

LIST OF FIGURES

10

FIGURE NO. TITLE PAGE NO

10

LIST OF TABLES

10

TABLE NO. TITLE PAGE NO

10

TABLE OF CONTENTS

11

SECTION 1. SPECIFICATIONS

13

1.7 CYLINDER SPECIFICATIONS

15

1.8 SERIAL NUMBER LOCATION

15

SECTION 1 - SPECIFICATIONS

15

3120728 – JLG Lift – 2-1

19

2-2 – JLG Lift – 3120728

20

2.3 LUBRICATION INFORMATION

21

Hydraulic System

21

2-4 – JLG Lift – 3120728

22

3120728 – JLG Lift – 2-5

23

TORQUE LIMIT

24

ADJUSTING NUT

24

SET SCREWS

24

3120728 – JLG Lift – 2-7

25

2-8 – JLG Lift – 3120728

26

Brake Assembly Removal

26

Brake Assembly Installation

26

Drive Motor Removal

27

Gear Box Disassembly/Assembly

28

3120728 – JLG Lift – 2-11

29

SIDE PROFILE

30

Drive Motor Brush Replacement

31

2-14 – JLG Lift – 3120728

32

PROCEDURES

33

2-16 – JLG Lift – 3120728

34

Lower Half Of Housing Removal

34

Joystick Assembly Removal

34

(Later Models With

35

Enable Button On

35

Knob Only)

35

Platform Control Box Assembly

36

3120728 – JLG Lift – 2-19

37

Touch Pad Switch Installation

37

WIRING HARNESS

38

CONNECTOR SOCKET

38

3120728 – JLG Lift – 2-21

39

Cover Removal

39

Transformer Replacement

39

Shunt Assembly Replacement

39

2-22 – JLG Lift – 3120728

40

Interlock Relay Replacement

40

Lift Cylinder Removal

41

Cylinder Disassembly

41

Cylinder Assembly

42

Cylinder Installation

42

3120728 – JLG Lift – 2-25

43

Mast Disassembly Procedure

44

3120728 – JLG Lift – 2-27

45

2-28 – JLG Lift – 3120728

46

3120728 – JLG Lift – 2-29

47

2-30 – JLG Lift – 3120728

48

Mast Assembly

49

2-32 – JLG Lift – 3120728

50

10VP Top of Cylinder Assembly

50

15VP Top of Cylinder Assembly

50

20VP Top of Cylinder Assembly

50

3120728 – JLG Lift – 2-33

51

2-34 – JLG Lift – 3120728

52

3120728 – JLG Lift – 2-35

53

2.11 MAST CHAINS/CABLES AND

54

SEQUENCING CABLES ADJUSTMENT

54

Mast Chain/Cable Adjustment

54

MAST SIDE PROFILE

55

MAST CHAIN/CABLE ADJUSTERS

55

Remove Old Cable

56

3120728 – JLG Lift – 2-39

57

INSPECTION SCHEDULE

58

3120728 – JLG Lift – 2-41

59

2-42 – JLG Lift – 3120728

60

SECTION 3. TROUBLESHOOTING

61

INDICATOR

62

4932960 A

68

4933134_A

73

3120728 – JLG Lift – 3-15

75

No Power At Platform Control

78

Won’t Climb Grade

84

Drives In Opposite Direction

85

Won’t Drive Straight

88

Noise From Drive Assembly

89

3.9 MAST TROUBLESHOOTING

90

SECTION 3 - TROUBLESHOOTING

100




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