Description
Sumitomo SH75X-3B, SH75XU-3B Hydraulic Excavator Parts Manual (WCLA75X3B1BB, WCLA75X3B1SB)
Sumitomo SH75X-3B, SH75XU-3B Hydraulic Excavator Index:
Main body Section
Specifications
Overall …………………………………………………………………………………………………………1
1. Main Data ……………………………………………………………………………………………1
2. Performance ………………………………………………………………………………………..1
3. Main Unit Dimensions …………………………………………………………………………..1
4. Engine ………………………………………………………………………………………………..2
5. Cooling System ……………………………………………………………………………………2
6. Upper Side Work System ………………………………………………………………………3
7. Operating Device………………………………………………………………………………….4
8. Swing Unit …………………………………………………………………………………………..5
9. Travel Lower Body ………………………………………………………………………………..5
Hydraulic Equipment………………………………………………………………………………………6
1. Hydraulic Device…………………………………………………………………………………..6
2. Control Valve, Cylinder ………………………………………………………………………….6
Capacities, Filters ………………………………………………………………………………………….7
1. Coolant and Oil Capacities …………………………………………………………………….7
2. Hydraulic Oil Filters ………………………………………………………………………………7
3. Fuel Filter ……………………………………………………………………………………………7
Overall View
Overall View (SH225X-3B) ……………………………………………………………………………..8
1. Standard Arm (3.00 m)………………………………………………………………………….8
2. Short Arm (2.40 m)……………………………………………………………………………….8
Overall View (SH225X-3B) (Blade)…………………………………………………………………..9
1. Standard Arm (3.00 m)………………………………………………………………………….9
2. Short Arm (2.40 m)……………………………………………………………………………….9
Work Range Diagram
Work Range Diagram (SH225X-3B)……………………………………………………………….10
1. Standard Arm (3.00 m)………………………………………………………………………..10
2. Short Arm (2.40 m)……………………………………………………………………………..11
Work Range Diagram (SH225X-3B) (Blade) ……………………………………………………12
1. Standard Arm (3.00 m)………………………………………………………………………..12
2. Short Arm (2.40 m)……………………………………………………………………………..13
Options
Option List Table………………………………………………………………………………………….14
Main Equipment Specifications
Equipment Layout………………………………………………………………………………………..15
Overall……………………………………………………………………………………………………15
Operator’s Seat ……………………………………………………………………………………….16
Main Equipment Table
Lower Component ……………………………………………………………………………………….17
1. Lower Assembly Diagram (overall) SH225X-3B………………………………………17
2. Lower Assembly Diagram (overall) SH225X-3B (Blade) …………………………..18
3. Travel Unit………………………………………………………………………………………….19
4. Take-up Roller ……………………………………………………………………………………19
5. Upper Roller ………………………………………………………………………………………19
6. Lower Roller ………………………………………………………………………………………19
7. Recoil Spring……………………………………………………………………………………..20
8. Shoe …………………………………………………………………………………………………20
Upper Component ……………………………………………………………………………………….21
1. Swing Unit …………………………………………………………………………………………21
Engine-related …………………………………………………………………………………………….22
1. Engine ………………………………………………………………………………………………22
2. Muffler ………………………………………………………………………………………………22
3. Air Cleaner (double element)………………………………………………………………..22
4. Radiator…………………………………………………………………………………………….23
5. Fuel Tank…………………………………………………………………………………………..24
6. Hydraulic Oil Tank……………………………………………………………………………….26
Hydraulic Device………………………………………………………………………………………….28
1. Hydraulic Pump ………………………………………………………………………………….28
Control-related…………………………………………………………………………………………….29
1. Control Valve ……………………………………………………………………………………..29
2. Solenoid Valve (4 stack) ………………………………………………………………………30
3. Remote Control Valve (left/right, travel, blade operations) ………………………..31
4. Remote Control Valve Characteristic Diagram………………………………………..32
5. Cushion Valve (heat circuit)………………………………………………………………….34
6. Center Joint ……………………………………………………………………………………….34
Backhoe Attachment…………………………………………………………………………………….36
1. Cylinder …………………………………………………………………………………………….36
2. Attachments ………………………………………………………………………………………37
Hydraulic Section
Hydraulic pump
Equipment Configuration ………………………………………………………………………………..1
Hydraulic Pump Structure……………………………………………………………………………….2
Hydraulic Pump Operation Explanation…………………………………………………………….5
Control Section Operation Explanation……………………………………………………………..6
Control valve
Operation……………………………………………………………………………………………………14
1. When All Spools in Neutral…………………………………………………………………..14
Independent Operation…………………………………………………………………………………18
1. Travel Spool Switchover ………………………………………………………………………18
2. Option Spool Switchover ……………………………………………………………………..19
3. Swing Spool Switchover ………………………………………………………………………20
4. Bucket Spool Switchover ……………………………………………………………………..20
5. Boom Spool Switchover ………………………………………………………………………21
6. Arm Spool Switchover …………………………………………………………………………24
7. Arm Parallel Orifice……………………………………………………………………………..28
8. Relief Valve………………………………………………………………………………………..29
Compound Operation …………………………………………………………………………………..30
1. Travel Compound Operation…………………………………………………………………30
Anti-drift Valve……………………………………………………………………………………………..31
1. Neutral Status [A5 port hold status]……………………………………………………….31
2. A5 Port and Spring Chamber Connection Cut-off Status ………………………….31
3. Main Poppet Operation Status ……………………………………………………………..31
Relief Valve…………………………………………………………………………………………………32
1. Main Relief Valve Operation …………………………………………………………………32
2. Overload Relief Valve Operation …………………………………………………………..33
3. Overload Relief Valve Intake Operation………………………………………………….34
Swing unit
Equipment Configuration ………………………………………………………………………………35
Hydraulic Motor Structure……………………………………………………………………………..35
Internal Structure Diagram………………………………………………………………………..36
Hydraulic Motor Operation Explanation …………………………………………………………..37
Mechanical Brake Operation Explanation………………………………………………………..37
Make-up Valve Operation Explanation…………………………………………………………….38
Relief Valve Operation Explanation (relief valve internal structure diagram)…………39
Bypass Valve Operation Explanation (bypass valve internal structure diagram)……40
Swing Reduction Gear………………………………………………………………………………….41
Main Equipment Structure and Operation Explanation
Motor …………………………………………………………………………………………………………42
1. Travel Motor ……………………………………………………………………………………….42
Hydraulic Circuit Section
Port Locations
Hydraulic Pump …………………………………………………………………………………………….1
Control Valve ………………………………………………………………………………………………..2
Pilot Hose Connection Diagram
Pilot P and T Lines ………………………………………………………………………………………..3
Function List
Function Table ………………………………………………………………………………………………6
Travel Circuit
Travel High-speed Circuit………………………………………………………………………………..8
Travel Low-speed Circuit……………………………………………………………………………….10
Straight Travel Circuit……………………………………………………………………………………12
Swing Circuit
Swing Parking Circuit (during independent swing operation) ……………………………..14
Swing Priority Variable Orifice Circuit ……………………………………………………………..16
Arm Circuit
Arm-out Circuit…………………………………………………………………………………………….18
Arm-in Load Holding…………………………………………………………………………………….20
Arm-in Circuit………………………………………………………………………………………………22
Boom Circuit
Boom-up Circuit (independent operation)………………………………………………………..24
Boom-up Circuit (compound)…………………………………………………………………………26
Boom-down Load Holding …………………………………………………………………………….28
Boom-down Circuit ………………………………………………………………………………………30
Option Circuits
Breaker Circuit …………………………………………………………………………………………….32
Multi-purpose Circuit (2 pumps flow circuit)……………………………………………………..34
Electric Circuits Section
Explanation of New Functions
Work Mode Select Switch Flow ……………………………………………………………………….1
Computer Connection Method …………………………………………………………………….3
Pilot Pressure Switch Changed to Pressure Sensor……………………………………….3
Pump Electromagnetic Proportional Valve ………………………………………………………..5
Horsepower Control Proportional Valve………………………………………………………..5
Explanation of Functions and Operations
Monitor Switch Panel ……………………………………………………………………………………..6
Explanation of Electrical Functions…………………………………………………………………..7
Engine Control………………………………………………………………………………………………9
1. Throttle Control…………………………………………………………………………………….9
2. One-touch Idle Control ………………………………………………………………………..10
3. Auto Warm-up ……………………………………………………………………………………11
Engine Start/Stop Control……………………………………………………………………………..12
1. Neutral Start ………………………………………………………………………………………12
2. Glow …………………………………………………………………………………………………13
3. Idling Start …………………………………………………………………………………………14
4. Power-cut Delay …………………………………………………………………………………15
5. Engine Emergency Stop………………………………………………………………………16
6. EPF (protecting the engine from fatal trouble)…………………………………………17
Pump Control………………………………………………………………………………………………18
1. Work Mode Control……………………………………………………………………………..18
2. Constant Horsepower Control ………………………………………………………………19
3. Travel Horsepower Boost……………………………………………………………………..20
4. Engine Stall Prevention (during low idle) ………………………………………………..20
5. High Altitude Correction ………………………………………………………………………23
Swing…………………………………………………………………………………………………………24
1. Swing Brake ………………………………………………………………………………………24
Travel …………………………………………………………………………………………………………25
1. Travel Speed Switchover ……………………………………………………………………..25
2. Travel Alarm……………………………………………………………………………………….26
Valve Control ………………………………………………………………………………………………27
1. Lever Lock …………………………………………………………………………………………27
2. Solenoid Sticking Prevention ………………………………………………………………..28
3. Pressure Boost Control ……………………………………………………………………….29
Monitor Control ……………………………………………………………………………………………30
1. Fuel Gauge/Refueling Warning …………………………………………………………….30
2. Coolant Temperature Gauge and Oil Temperature Gauge/Overheat Warning …..31
3. Battery Charge Warning………………………………………………………………………33
4. Engine Oil Pressure Warning ……………………………………………………………….34
5. Hydraulic Oil Filter Clog Warning ………………………………………………………….36
6. Engine Abnormality Warning………………………………………………………………..38
7. Hour Meter ………………………………………………………………………………………..39
Accessories ………………………………………………………………………………………………..40
1. Horn………………………………………………………………………………………………….40
2. Working Light……………………………………………………………………………………..40
3. Backlight ……………………………………………………………………………………………41
4. Wiper and Washer………………………………………………………………………………41
5. Room Lamp……………………………………………………………………………………….43
6. Radio ………………………………………………………………………………………………..44
Other………………………………………………………………………………………………………….45
1. Key ON Alarm…………………………………………………………………………………….45
2. Battery Save Function …………………………………………………………………………45
Options ………………………………………………………………………………………………………47
1. Option Line Control …………………………………………………………………………….47
2. Model Setting …………………………………………………………………………………….51
Service Support…………………………………………………………………………………………..52
1. Rewriting Programs (engine information) ……………………………………………….52
2. Rewriting Programs (all reset/half reset) ………………………………………………..53
3. Managing Trouble States……………………………………………………………………..54
4. Diagnostic Lamp Output………………………………………………………………………56
5. Engine Controller Delivery Specifications ………………………………………………58
6. Engine-side Trouble…………………………………………………………………………….60
Service Support
Screen Operations……………………………………………………………………………………….68
1. Screen Shift……………………………………………………………………………………….68
Screen Display List ………………………………………………………………………………………70
1. CHK (status display) Screen List…………………………………………………………..70
2. DIAG (trouble diagnosis) Screen…………………………………………………………..82
3. HR (usage log) Screen List ………………………………………………………………….84
4. CFG (setting change) Screen……………………………………………………………….90
5. CAL (troubleshooting support) Screen …………………………………………………..94
6. Check the Monitor Switch (self-diagnosis function)………………………………….97
7. Model Setting …………………………………………………………………………………….98
8. Engine Screen Information …………………………………………………………………100
Abnormality Display……………………………………………………………………………………102
1. Main Unit Diagnostic Trouble Code List………………………………………………..102
2. Diagnostic Trouble Code (monitor display) ……………………………………………105
3. Sensor Trouble Operation Table ………………………………………………………….112
Main Equipment Structural Diagrams
Connection Connector Pin Layout ………………………………………………………………..114
1. Computer A ……………………………………………………………………………………..114
2. Monitor ……………………………………………………………………………………………115
Electrical Circuit Diagram
Overall View………………………………………………………………………………………………116
1. Sequence Circuit Diagram………………………………………………………………….116
Block Diagram …………………………………………………………………………………………..118
1. Computer A ……………………………………………………………………………………..118
2. Computer S ……………………………………………………………………………………..119
3. ECM ……………………………………………………………………………………………….120
4. Monitor Display…………………………………………………………………………………121
5. Air Conditioner………………………………………………………………………………….122
6. Lever Lock ……………………………………………………………………………………….123
7. Horn………………………………………………………………………………………………..123
8. Other ………………………………………………………………………………………………123
9. Electrical Symbol List ………………………………………………………………………..124
lectrical Connector Wiring Diagram
Wire Harness…………………………………………………………………………………………….125
1. Main Frame Harness …………………………………………………………………………125
2. Cab Main Harness…………………………………………………………………………….128
3. Engine Harness………………………………………………………………………………..131
Electrical Equipment Layout Diagram
Overall View………………………………………………………………………………………………133
1. Main Unit Left Side Layout Diagram (radiator chamber) …………………………134
2. Engine Section Layout Diagram………………………………………………………….135
3. Engine Left Side Layout Diagram (pump chamber)………………………………..136
4. Main Unit Right Side Layout Diagram…………………………………………………..137
5. Cab Layout Diagram………………………………………………………………………….138
6. Layout Around Operator Seat……………………………………………………………..140
Stand Alone Parts Diagram…………………………………………………………………………141
Electrical Parts and Wiring Assembly Diagram
Upper Frame Electrical Parts and Wiring Assembly (1/4) ………………………………..152
Upper Frame Electrical Parts and Wiring Assembly (2/4) ………………………………..154
Upper Frame Electrical Parts and Wiring Assembly (engine) (3/4) ……………………155
Upper Frame Electrical Parts and Wiring Assembly (pump) (4/4) ……………………..156
Upper Frame Electrical Parts and Wiring Assembly ………………………………………..157
Maintenance Section
New Machine Performance
New Machine Performance Judgment Table ……………………………………………………..1
Performance Judgement Check Sheet …………………………………………………………1
Performance Measurement Entry Table………………………………………………………..2
Pressure Measurement and Adjustment Procedures
Pressure Measurement ………………………………………………………………………………….3
1. Basic Conditions…………………………………………………………………………………..3
2. Setting Value ……………………………………………………………………………………….3
3. Pressure Measuring Ports ……………………………………………………………………..4
4. Pressure Measurement Preparations………………………………………………………5
5. Pressure Measurement …………………………………………………………………………7
Pressure Adjustment ……………………………………………………………………………………..9
1. Pressure Adjustment Locations………………………………………………………………9
2. Pressure Adjustment Procedures………………………………………………………….11
Interchangeability
Main Part Commonality and Interchangeability Table………………………………………..16
SH225X-3 and SH225X-3B and SH200-5 Interchangeability Table…………………16
Attachment Installation Dimensions
Attachment Dimensions………………………………………………………………………………..17
Main Unit Weight
Divided Weight (standard specifications)…………………………………………………………19
Stand Alone Part Weight ………………………………………………………………………………20
Shoe Weight (per side) …………………………………………………………………………………20
Arm Weight …………………………………………………………………………………………………20
Bucket Weight……………………………………………………………………………………………..21
