SANY Crawler Hydraulic Excavator SY365H-9, SY365BH-9. Shop Manual (2014)

Table of Contents

SY365(B)H-9 Crawler Hydraulic Excavator

Table of Contents

1 Introduction

1.1 How to Read the Manual ......................................................................................... 1-3

1.1.1 Shop manual organization ............................................................................. 1-3
1.1.2 Revision and distribution ................................................................................ 1-4
1.1.3 Symbols ......................................................................................................... 1-5
1.1.4 Units ............................................................................................................... 1-5

1.2 Technical Terms ....................................................................................................... 1-6

1.2.1  Standard size and tolerance .......................................................................... 1-6
1.2.2  Standard clearance and value ....................................................................... 1-7
1.2.3 Standard interference .................................................................................... 1-7
1.2.4  Repair limit and allowable value .................................................................... 1-8
1.2.5 Clearance limit ............................................................................................... 1-8
1.2.6 Interference limit ............................................................................................ 1-8

1.3 Handling Electrical and Hydraulic Components....................................................... 1-9

1.3.1 Points to remember when handling electric components .............................. 1-9

1.3.1.1  Handling wiring harnesses and connectors .......................................... 1-9
1.3.1.2  Main failures occurring in wiring harness ............................................ 1-10
1.3.1.3  Removing, installing, and drying connectors and wiring harnesses ... 1-12
1.3.1.4  Handling the integrated control monitor .............................................. 1-16
1.3.1.5  Electric circuits troubleshooting precautions ....................................... 1-17

1.3.2 Points to remember when handling hydraulic equipment ............................ 1-18

1.3.2.1 Be careful of the operating environment ............................................. 1-18
1.3.2.2 Disassembly and maintenance work in the

eld ................................. 1-18

1.3.2.3 Sealing openings ................................................................................ 1-18
1.3.2.4 Do not let any dirt or dust get in during re

lling operations ................. 1-19

1.3.2.5 Change hydraulic oil when the temperature is high ............................ 1-19
1.3.2.6 Flushing operations ............................................................................. 1-19
1.3.2.7 Cleaning operations ............................................................................ 1-20

1.4 Hose Connector ..................................................................................................... 1-20

1.4.1  Type of hose connector ................................................................................ 1-21
1.4.2  Hose connector tightening torque table ....................................................... 1-21
1.4.3  Connection of O-rings .................................................................................. 1-22

1.5 Table of Standard Tightening Torques .................................................................. 1-23

1.6 Type of Bolts .......................................................................................................... 1-24
1.7 Tightening Sequence ............................................................................................. 1-24
1.8 Maintenance of Half Flanges ................................................................................. 1-25

1.8.1 Table of tightening torques for half

ange bolts ........................................... 1-25

1.8.2 Temperature ................................................................................................. 1-31

2 Shop Safety

2.1 Hazard Alert Information .......................................................................................... 2-3
2.2 General Shop Safety ............................................................................................... 2-5

2.2.1  Rules and shop behavior ............................................................................... 2-6
2.2.2 Housekeeping ................................................................................................ 2-6
2.2.3  Shop Liquids Storage..................................................................................... 2-7
2.2.4  Cleaning the Parts ......................................................................................... 2-7
2.2.5  Cleaning the Machine .................................................................................... 2-8
2.2.6 Appropriate Working Apparel ......................................................................... 2-8
2.2.7  Personal Protective Equipment...................................................................... 2-8
2.2.8  Using the Correct Tools .................................................................................. 2-9
2.2.9  Fire Extinguisher and Emergency Exits ......................................................... 2-9
2.2.10 Electrical Dangers ...................................................................................... 2-10
2.2.11  Hoisting a Load .......................................................................................... 2-10

2.3 Before Repair..........................................................................................................2-11

2.3.1 Safe Work Preparations ................................................................................2-11
2.3.2 Preparing yourself ........................................................................................ 2-12
2.3.3 Lockout/Tagout............................................................................................. 2-13
2.3.4 Two people when engine running ................................................................ 2-15
2.3.5 Safety Partners ............................................................................................ 2-15

2.4 Repair Precautions ................................................................................................ 2-16

2.4.1  Running the Machine ................................................................................... 2-16
2.4.2  Mounting and Dismounting .......................................................................... 2-17
2.4.3 Removing Attachments ................................................................................ 2-18
2.4.4  Jacking Up the Machine............................................................................... 2-18
2.4.5  Adding Fluids to a System ........................................................................... 2-18
2.4.6  Aligning Parts or Components ..................................................................... 2-19
2.4.7 Driving Pins .................................................................................................. 2-19
2.4.8  When compressed air is used...................................................................... 2-19
2.4.9 Welding operation ........................................................................................ 2-20

2.4.10  Track Recoil Springs .................................................................................. 2-20
2.4.11  High-Pressure Fluid Lines .......................................................................... 2-21
2.4.12  Air-conditioning system maintenance ........................................................ 2-22
2.4.13  High voltage precautions ........................................................................... 2-22
2.4.14  Disconnecting the System Power .............................................................. 2-23
2.4.15 Accumulator ............................................................................................... 2-23
2.4.17 Battery Hazards ......................................................................................... 2-24
2.4.18 Jump-Start Safety ...................................................................................... 2-25
2.4.19 Avoiding

re and explosion ........................................................................ 2-26

2.4.20 Chemical hazard ........................................................................................ 2-27
2.4.21 Material Safety Data Sheets (MSDS) ........................................................ 2-27
2.4.22 Proper disposal of wastes .......................................................................... 2-28

2.5 Other Precautions .................................................................................................. 2-29

2.5.1  Sling work and giving signals ....................................................................... 2-29
2.5.2  Using mobile crane ...................................................................................... 2-31
2.5.3  Using overhead hoist crane ......................................................................... 2-31
2.5.4  Selecting wire ropes..................................................................................... 2-33

3 Speci

cations

3.1 Speci

c Dimension .................................................................................................. 1-3

3.1.1 Dimension ...................................................................................................... 1-3
3.1.2 Working ranges .............................................................................................. 1-4

3.2 Technical Speci

cations ........................................................................................... 1-5

3.3 Weight Table ............................................................................................................ 1-7
3.4 Engine oil, Fuel and Coolant.................................................................................... 1-8
3.5 Engine Performance Curves.................................................................................... 1-9

4 Structure and Functions

4.1 Engine and Cooling System ................................................................................... 4-5

4.1.1 Engine-related parts....................................................................................... 4-5
4.1.2 Radiator and intercooler................................................................................. 4-6

4.2 Power Train.............................................................................................................. 4-7

4.2.1 Overview ........................................................................................................ 4-7
4.2.2 Travel reducer AS ......................................................................................... 4-8
4.2.3 Swing reducer mechanism........................................................................... 4-10
4.2.4 Swing bearing .............................................................................................. 4-12

4.3 Undercarriage Travel System ............................................................................... 4-14

4.3.1  Track frame and tensioning mechanism ...................................................... 4-14
4.3.2 Idler .............................................................................................................. 4-16
4.3.3 Carrier roller ................................................................................................. 4-18
4.3.4 Track roller ................................................................................................... 4-19
4.3.5 Track  ........................................................................................................... 4-20
4.3.6  Tri-grouser track shoe .................................................................................. 4-23

4.4 Hydraulic System, Part 1 ....................................................................................... 4-24

4.4.1 Deployment of hydraulic parts ..................................................................... 4-24
4.4.2 Hydraulic tank and

lter ............................................................................... 4-26

4.4.3 Hydraulic pump ............................................................................................ 4-28

4.4.3.1 Outline ................................................................................................. 4-29
4.4.3.2 Function .............................................................................................. 4-31
4.4.3.3 Structure ............................................................................................. 4-31
4.4.3.4 Operating principle .............................................................................. 4-32
4.4.3.5 Oil delivery control .............................................................................. 4-33

4.4.4 Pilot pump .................................................................................................... 4-34
4.4.5 Regulator .................................................................................................... 4-35

4.5 Hydraulic system, Part 2 ........................................................................................ 4-48

4.5.1 Main control valve ........................................................................................ 4-48

4.5.1.1 Overview ............................................................................................ 4-48
4.5.1.2 Main valve structure ............................................................................ 4-50

4.5.2 Hydraulic circuit

(With bucket con

uence function) .............................................. 4-56

4.6 Hydraulic System, Part 3 ....................................................................................... 4-79

4.6.1 Swing motor ................................................................................................. 4-79
4.6.2 Swing holding brake..................................................................................... 4-81
4.6.3 Relief valve section ...................................................................................... 4-82
4.6.4 Anti-jerk valve............................................................................................... 4-84

4.6.4.1 Operation diagram .............................................................................. 4-84
4.6.4.2 Effect illustration .................................................................................. 4-84

4.6.5  Central Swivel Joint ..................................................................................... 4-86
4.6.6 Travel motor ................................................................................................. 4-87
4.6.7 Reducer ....................................................................................................... 4-89
4.6.8  Travel motor (Nabtesco) .............................................................................. 4-91
4.6.9  Operating principle of the basic components ............................................... 4-93

4.6.9.1 Double-balanced valve ....................................................................... 4-93

4.6.9.2 Operation of parking brake ................................................................. 4-98
4.6.9.3 Operation of braking valve .................................................................. 4-99

4.6.10 Control system ......................................................................................... 4-108
4.6.11 Manual pilot valve .....................................................................................4-110
4.6.12 Travel pilot valve .......................................................................................4-114

4.6.12.1 Operating principle ...........................................................................4-116

4.6.13 Solenoid valve...........................................................................................4-118
4.6.14 PPC accumulator ......................................................................................4-119
4.6.15 Pilot oil

lter.............................................................................................. 4-121

4.6.16 Hydraulic cylinders ................................................................................... 4-122

4.6.16.2 Lubrication at every 100 service hours ........................................... 4-123
4.6.16.1 Lubrication at every 500 service hours ........................................... 4-123

4.7 Work Equipment .................................................................................................. 4-124

4.7.1 Component dimensions ............................................................................. 4-124
4.7.2 Arm dimensions ......................................................................................... 4-126

4.7.2.1 Bucket dimensions ............................................................................ 4-128

4.8 Operator Station and Its Attachments .................................................................. 4-130

4.8.1 Air conditioner lines .................................................................................... 4-130

4.8.1.1  Layout of A/C components ................................................................ 4-132
4.8.1.2  A/C control panel ............................................................................... 4-133
4.8.1.3  Diagram of electrical circuit ............................................................... 4-134
4.8.1.4 Operating principle ............................................................................ 4-136
4.8.1.5 Compressor ...................................................................................... 4-137
4.8.1.6 Clutch ................................................................................................ 4-139
4.8.1.7 Condenser ........................................................................................ 4-140
4.8.1.8 Expansion valve ................................................................................ 4-141
4.8.1.9 Evaporator ........................................................................................ 4-141
4.8.1.10 Dehydrator  ..................................................................................... 4-142
4.8.1.11  Pressure switch .............................................................................. 4-143
4.8.1.12  Fresh air sensor .............................................................................. 4-144

4.8.2 Refrigerant ................................................................................................. 4-145

4.8.2.1 Compressor oil .................................................................................. 4-163

4.9 Engine Control ..................................................................................................... 4-164

4.9.1 System operation ....................................................................................... 4-165

4.9.1.1 Engine starting .................................................................................. 4-165
4.9.1.2 Engine speed control ........................................................................ 4-165

4.9.1.3 Engine shutdown .............................................................................. 4-165

4.9.2 System components .................................................................................. 4-166

4.9.2.1 Fuel control dial ................................................................................. 4-166
4.9.2.2 Controller .......................................................................................... 4-168

4.10 Electrical Control System................................................................................... 4-170

4.10.1 Control function ........................................................................................ 4-170
4.10.2  Diagram of machine control system......................................................... 4-171
4.10.3  Engine-pump combination control ........................................................... 4-173
4.10.4  Pump control function .............................................................................. 4-177

4.10.4.1 Constant power control ................................................................... 4-180
4.10.4.2 ESS control ..................................................................................... 4-180

4.10.5  Valve control function ............................................................................... 4-181
4.10.6  Dual travel speed control ......................................................................... 4-183
4.10.7  Engine preheat/overheat alarm ............................................................... 4-185
4.10.8  Auto deceleration/acceleration control ..................................................... 4-187
4.10.9  Engine speed calibration function ............................................................ 4-188
4.10.10  System parts and components .............................................................. 4-190

4.11 Monitoring System ............................................................................................. 4-195

4.11.1 Monitor ..................................................................................................... 4-196
4.11.2 Monitor panel ........................................................................................... 4-197

4.11.2.1 Alert and signal indicators .............................................................. 4-197
4.11.2.2 Operation keys ................................................................................ 4-199

4.11.3 Monitor display and operation .................................................................. 4-201

4.11.3.1 Default page .................................................................................... 4-201
4.11.3.2  Password entry to system information ............................................ 4-202
4.11.3.3 Main menu ...................................................................................... 4-202
4.11.3.4  Engine & throttle signals ................................................................. 4-203
4.11.3.5  Pilot pressure signals ...................................................................... 4-203
4.11.3.6  Main pump & main valve signals ..................................................... 4-204
4.11.3.7 Failure codes ................................................................................... 4-204
4.11.3.8  Throttle help information ................................................................. 4-205
4.11.3.9 Language selection ......................................................................... 4-205
4.11.3.10  System clock setup ....................................................................... 4-206
4.11.3.11 GPS information ............................................................................ 4-207
4.11.3.12 System setup ................................................................................ 4-208
4.11.3.13 Machine con

guration ................................................................... 4-208

4.11.3.14 Service hour setup ....................................................................... 4-209
4.11.3.15 Machine con

guration setup ......................................................... 4-210

4.11.3.16  Hydraulic oil temperature ...............................................................4-211
4.11.3.17  Screen brightness setup ................................................................4-211
4.11.3.18  System lockout (level 1) ................................................................ 4-212
4.11.3.19  System lockout (level 2) ................................................................ 4-212

5 Table of Standard Values

5.1 Standard Values for Engine-Related Parts .............................................................. 5-3
5.2 Standard Values for Chassis-Related Parts ............................................................ 5-4

6 Testing and adjusting

6.1  Engine Speed - Test and Adjust ............................................................................... 6-3
6.2  Exhaust Gas Color - Test ......................................................................................... 6-5
6.3  Valve Clearance - Adjust .......................................................................................... 6-7

6.3.1 Testing ............................................................................................................ 6-8
6.3.2 Adjusting ........................................................................................................ 6-9

6.4 Compression force - Test ....................................................................................... 6-10
6.5 Fuel Injection Timing - Test and Adjust .................................................................. 6-13

6.5.1 Testing .......................................................................................................... 6-14
6.5.2 Adjusting ...................................................................................................... 6-18

6.6 A/C Compressor Belt Tension - Test and Adjust .................................................... 6-19

6.6.1 Testing ......................................................................................................... 6-19
6.6.2 Adjusting ...................................................................................................... 6-19

6.7 Swing Bearing Clearance - Test ............................................................................ 6-20
6.8 Track Tensioner - Test and Adjust .......................................................................... 6-21

6.8.1 Testing .......................................................................................................... 6-21
6.8.2 Adjusting ...................................................................................................... 6-22

6.9 Oil in Hydraulic Circuits - Test and Adjust .............................................................. 6-23

6.9.1 Testing .......................................................................................................... 6-23
6.9.2 Adjusting ...................................................................................................... 6-25

6.10 Control Oil Circuit Pressure - Test and Adjust ...................................................... 6-28

6.10.1 Testing ........................................................................................................ 6-28
6.10.2 Adjusting .................................................................................................... 6-28

6.11 Solenoid Valve Output Pressure - Test ................................................................ 6-29
6.12 Pilot Valve Output Pressure - Test ....................................................................... 6-31

6.13  Work Equipment and Swing Pilot Valves - Adjust ................................................ 6-33
6.14  Hydraulic Drift of Work Equipment - Test ............................................................. 6-34
6.15  Remaining Pressure in Hydraulic Lines - Relieve................................................ 6-36
6.16  Oil Leakage Amount - Test ................................................................................... 6-37
6.17  Air in Each Component - Purge ........................................................................... 6-41

7 Troubleshooting

7.1 Checks before Troubleshooting ............................................................................... 7-5
7.2 Failure Symptoms and Troubleshooting Codes ....................................................... 7-6
7.3 Connector Location and Electrical Circuit Diagram ................................................. 7-9

7.3.1  Connector location layout ............................................................................ 7-13
7.3.2  Diagram of system electrical elements ........................................................ 7-18
7.3.3  Diagram of electrical control system ........................................................... 7-20
7.3.4 SWP connectors .......................................................................................... 7-22
7.3.5 A/AMP connectors ....................................................................................... 7-23
7.3.6 DT connectors .............................................................................................. 7-24

7.4  Troubleshooting with an Event Code ..................................................................... 7-25
7.5  Troubleshooting Electrical System (E-Mode)......................................................... 7-49
7.6  Troubleshooting Hydraulic and Mechanical Systems (H-mode) ............................ 7-81

8 Disassembly and Assembly

8.1 How to Read This Manual ....................................................................................... 8-5

8.1.1 Removing and installing an assembly............................................................ 8-5

8.2 Operating Precautions ............................................................................................. 8-6
8.3 Start Motor AS ........................................................................................................ 8-9

8.3.1 Removal ......................................................................................................... 8-9
8.3.2 Installation ...................................................................................................... 8-9

8.4 Fuel Injection Pump AS ........................................................................................ 8-10

8.4.1 Removal ....................................................................................................... 8-10
8.4.2 Installation .................................................................................................... 8-12

8.5 Engine Front Oil Seal ............................................................................................ 8-13

8.5.1 Removal ....................................................................................................... 8-13
8.5.2 Installation .................................................................................................... 8-13

8.6 Engine Rear Oil Seal ............................................................................................ 8-14

8.6.1 Removal ....................................................................................................... 8-14
8.6.2 Installation .................................................................................................... 8-14

8.7 Cylinder Head AS .................................................................................................. 8-15

8.7.1 Removal ....................................................................................................... 8-15
8.7.2 Installation .................................................................................................... 8-19

8.8 Radiator AS ........................................................................................................... 8-20

8.8.1 Removal ....................................................................................................... 8-20
8.8.2 Installation .................................................................................................... 8-23

8.9 Engine and Hydraulic Pump AS ............................................................................ 8-24

8.9.1 Removal ....................................................................................................... 8-24
8.9.2 Installation .................................................................................................... 8-30

8.10 Final Drive AS ..................................................................................................... 8-31

8.10.1 Removal ..................................................................................................... 8-31
8.10.2 Installation .................................................................................................. 8-32

8.11 Final Drive AS ...................................................................................................... 8-33

8.11.1 Disassembly ............................................................................................... 8-33
8.11.2 Assembly .................................................................................................... 8-36

8.12 Swing Motor and Swing Drive AS ....................................................................... 8-42

8.12.1 Removal ..................................................................................................... 8-42
8.12.2 Installation .................................................................................................. 8-43

8.13 Swing Motor and Swing Drive AS ....................................................................... 8-44

8.13.1 Disassembly............................................................................................... 8-44
8.13.2 Assembly.................................................................................................... 8-49

8.14 Idler AS ............................................................................................................... 8-54

8.14.1 Disassembly............................................................................................... 8-54
8.14.2 Assembly.................................................................................................... 8-55

8.15 Sprocket .............................................................................................................. 8-58

8.15.1 Removal ..................................................................................................... 8-58
8.15.2 Installation .................................................................................................. 8-58

8.16 Track AS ............................................................................................................. 8-59

8.16.1 Removal ..................................................................................................... 8-59
8.16.2 Installation .................................................................................................. 8-60

8.17 Swing Bearing AS ............................................................................................... 8-62

8.17.1 Removal ..................................................................................................... 8-62
8.17.2 Installation .................................................................................................. 8-63

8.18 Swing frame AS .................................................................................................. 8-64

8.18.1 Removal ..................................................................................................... 8-64
8.18.2 Installation .................................................................................................. 8-66

8.19 Swivel Joint AS .................................................................................................... 8-67

8.19.1 Removal ..................................................................................................... 8-67
8.19.2 Installation .................................................................................................. 8-69

8.20 Central Swivel Joint AS ....................................................................................... 8-70

8.20.1 Disassembly............................................................................................... 8-70
8.20.2 Assembly.................................................................................................... 8-70

8.21 Hydraulic Tank AS ............................................................................................... 8-71

8.21.1 Removal ..................................................................................................... 8-71
8.21.2 Installation .................................................................................................. 8-73

8.22 Control Valve AS .................................................................................................. 8-74

8.22.1 Removal ..................................................................................................... 8-74
8.22.2 Installation .................................................................................................. 8-79

8.23 Hydraulic Pump AS ............................................................................................. 8-80

8.23.1 Removal ..................................................................................................... 8-80
8.23.2 Installation .................................................................................................. 8-83

8.24 Middle Oil Seal (Hydraulic Pump Input Shaft) ..................................................... 8-84

8.24.1 Removal ..................................................................................................... 8-84
8.24.2 Installation .................................................................................................. 8-84

8.25  Pilot Valve AS (Work Equipment) ....................................................................... 8-85
8.26  Travel Pilot Valve AS ........................................................................................... 8-86
8.27  Hydraulic Cylinder AS ......................................................................................... 8-87

8.27.1 Disassembly............................................................................................... 8-88
8.27.2 Assembly.................................................................................................... 8-92

8.28 Work Equipment AS ............................................................................................ 8-97

8.28.1 Removal ..................................................................................................... 8-97
8.28.2 Installation .................................................................................................. 8-99

8.29 Air Conditioner AS ............................................................................................. 8-100

8.29.1 Removal ................................................................................................... 8-100
8.29.2 Installation ................................................................................................ 8-103

8.30 Counterweight AS ............................................................................................. 8-104

8.30.1 Removal ................................................................................................... 8-104
8.30.2 Installation ................................................................................................ 8-105

8.31 Cab AS .............................................................................................................. 8-106

8.31.1 Removal ................................................................................................... 8-106
8.31.2 Installation ................................................................................................ 8-109

8.32 Cab Window Glass ............................................................................................8-110

8.32.1 Removal ....................................................................................................8-111
8.32.2 Installation .................................................................................................8-114

8.33 Front Window AS ............................................................................................... 8-126

8.33.1 Disassembly............................................................................................. 8-126
8.33.2 Assembly.................................................................................................. 8-129

8.34 Monitor - Remove and Install ............................................................................. 8-135

8.34.1 Removal ................................................................................................... 8-135
8.34.2 Installation ................................................................................................ 8-135

8.35 Controller AS ..................................................................................................... 8-136

8.35.1 Removal ................................................................................................... 8-136
8.35.2 Installation ................................................................................................ 8-136

8.36 Radio ................................................................................................................. 8-137

8.36.1 Structure .................................................................................................. 8-137
8.36.2 Removal and installation .......................................................................... 8-139
8.36.3 Connector model and wiring .................................................................... 8-140

8.37 Battery ............................................................................................................... 8-141

8.37.1 Structure .................................................................................................. 8-141
8.37.2 Removal and installation .......................................................................... 8-142
8.37.3 Replacement ............................................................................................ 8-143

8.38 Start Switch........................................................................................................ 8-144

8.38.1 Structure ................................................................................................. 8-144
8.38.2 Removal ................................................................................................... 8-145
8.38.3 Working principle ..................................................................................... 8-146
8.38.4 Wiring ....................................................................................................... 8-146

8.39 Fuse Box............................................................................................................ 8-147
8.40 Wiper ................................................................................................................. 8-148

8.40.1 Structure .................................................................................................. 8-148
8.40.2 Working principle ..................................................................................... 8-149
8.40.3 Removal ................................................................................................... 8-150
8.40.4 Installation ................................................................................................ 8-150
8.40.5 Angle adjustment of wiper arm................................................................. 8-151

8.41 Relays ................................................................................................................ 8-152

8.41.1 Engine relays ........................................................................................... 8-152
8.41.2 Other relays ............................................................................................. 8-153
8.41.3 Removal and installation .......................................................................... 8-154
8.41.4 Relay connector and wiring...................................................................... 8-154

8.42 Sensors.............................................................................................................. 8-155
8.43 Connector Terminals ......................................................................................... 8-157

8.43.1 Insertion ................................................................................................... 8-157
8.43.2 Removal ................................................................................................... 8-158

9 System Schematics

9.1  Diagram of Hydraulic Lines...................................................................................... 9-3
9.2  Electrical diagram of chassis ................................................................................... 9-4
9.3  Electrical diagram of control switches...................................................................... 9-5
9.4  Electrical diagram of operator station ...................................................................... 9-6
9.5  Electrical diagram of air conditioner......................................................................... 9-7
9.6  Electrical diagram of monitor ................................................................................... 9-8

Introduction

SY365(B)H-9 Crawler Hydraulic Excavator

1 Introduction

1.1 How to Read the Manual ......................................................................................... 1-3

1.2 Technical Terms ....................................................................................................... 1-6

1.3 Handling Electrical and Hydraulic Components....................................................... 1-9

1.3.1 Points to remember when handling electric components .............................. 1-9

1.3.2 Points to remember when handling hydraulic equipment ............................ 1-18

1.3.2.1 Be careful of the operating environment ............................................. 1-18
1.3.2.2 Disassembly and maintenance work in the

eld ................................. 1-18

1.3.2.3 Sealing openings ................................................................................ 1-18
1.3.2.4 Do not let any dirt or dust get in during re

lling operations ................. 1-19

1.3.2.5 Change hydraulic oil when the temperature is high ............................ 1-19

1.3.2.6 Flushing operations ............................................................................. 1-19
1.3.2.7 Cleaning operations ............................................................................ 1-20

1.4 Hose Connector ..................................................................................................... 1-20

1.5  Table of Standard Tightening Torques .................................................................. 1-23
1.6  Type of Bolts .......................................................................................................... 1-24
1.7 Tightening Sequence ............................................................................................. 1-24
1.8  Maintenance of Half Flanges ................................................................................. 1-25

1.8.1 Table of tightening torques for half

ange bolts ........................................... 1-25

1.8.2 Temperature ................................................................................................. 1-31

1-3

Introduction

SY365(B)H-9 Crawler Hydraulic Excavator

1 INTRODUCTION

1.1 How to Read the Manual

●

Some attachments and optional parts in
this shop manual may not be delivered to
certain areas. If one of them is required,
consult Sany distributors.

●

Materials and speci

cations are subject to

change without notice.

1.1.1 Shop manual organization

This shop manual contains the necessary
technical information for services performed
in a workshop. For ease of understanding, the
manual is divided into the following sections.

Introduction

This section provides an overview of what is
covered in the rest of this manual and how to
use this manual,.

Shop Safety

This section covers basic shop safety infor-
mation relating to this equipment. It also de-
scribes what the hazard alerts mean that are
used throughout the manual.

Speci

cations

Technical speci

cation of work equipment and

optional parts are given in this section.

Structure and functions

This section explains the structure and func-
tion of each component. It helps the reader
to get a better understanding of the machine
structure, and also serves as a reference for
troubleshooting.

SANY Crawler Hydraulic Excavator SY365H-9, SY365BH-9. Shop Manual (2014) - page 1