Komatsu Hydraulic Excavator PC50UU Repair Service Manual + Operation & Maintenance Manual
Complete service repair manual with Electrical Wiring Diagrams for Komatsu Hydraulic Excavator PC50UU-1, PC50UU-2, with all the technical information to maintain, diagnose, repair, rebuild like professional mechanics.
Komatsu Hydraulic Excavator PC50UU-1, PC50UU-2 workshop service repair manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.
PRODUCT DETAILS:
Total Pages: 1,895 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
SEBM020U0104 - Hydraulic Excavator PC50UU-1 Shop Manual.pdf
SEBM000906 - Hydraulic Excavator PC50UU-2 Shop Manual.pdf
SEAM020U0100 - Hydraulic Excavator PC50UU-1 Operation & Maintenance Manual.pdf
SEAM020U0101 - Hydraulic Excavator PC50UU-1 Operation & Maintenance Manual.pdf
SEAM005500 - Hydraulic Excavator PC50UU-2 Operation & Maintenance Manual.pdf
SEAM005503T - Hydraulic Excavator PC50UU-2 Operation & Maintenance Manual.pdf
SEAM034800 - Hydraulic Excavator PC28UU-2 Operation & Maintenance Manual.pdf
MAIN SECTIONS
COVER...1
CONTENTS...2
10 STRUCTURE AND FUNCTION...15
POWER TRAIN...16
SWING MACHINERY...17
SWING CIRCLE...18
TRACK FRAME AND RECOIL SPRING...19
IDLER...21
TRACK ROLLER...22
TRACK SHOE...23
HYDRAULIC PIPING...24
HYDRAULIC CIRCUIT SCHEMATICS...25
HYDRAULIC CIRCUIT DIAGRAM...27
HYDRAULIC TANK AND FUEL TANK...29
HYDRAULIC PUMP...30
6-SPOOL CONTROL VALVE...31
3-SPOOL CONTROL VALVE...35
SUCTION VALVE...38
SWING MOTOR...40
CENTER SWIVEL JOINT...41
TRAVEL MOTOR WITH REDUCTION GEAR...42
1. TRAVEL MOTOR AND FINAL DRIVE...43
2. BRAKE VALVE...46
HYDRAULIC CYLINDER...48
WORK EQUIPMENT CONTROL...51
WORK EQUIPMENT...52
ELECTRICAL CIRCUIT...53
20 TESTING AND ADJUSTING...55
TABLE OF JUDGEMENT STANDARD VALUE...56
TESTING AND ADJUSTING TOOL LIST...71
ADJUSTING VALVE CLEARANCE...72
MEASURING COMPRESSION PRESSURE...73
ADJUSTING FUEL INJECTION TIMING...74
TESTING AND ADJUSTING HYDRAULIC PRESSURE...75
MEASURING OIL LEAKAGE FROM SWING AND TRAVEL MOTOR...77
MEASURING OIL LEAKAGE FROM CYLINDER...78
CHECKING FOR OIL LEAKAGE FROM SWIVEL JOINT...79
TROUBLESHOOTING...80
PREPARATION OF TROUBLESHOOTING...81
HOW TO USE DIAGNOSTIC TABLE...83
PREVENTING RECURRENCE OF THE SAME TROUBLE...85
DIAGNOSTIC TABLE...86
1.BUCKET CURL(DUMP)LACKS POWER OR SPEED...86
2.ARM(BOOM)LACKS POWER OR SPEED...87
3.IMPOSSIBLE TO CURL OR DUMP BUCKET...88
4.IMPOSSIBLE TO MOVE WORK EQUPIMENT(BOOM,ARM)...89
5.HYDRAULIC DRIFT OF WORK EQUIPMENT IS EXCESSIVE(BOOM,ARM,BUCKET,BLADE)...90
6.BLADE,BOOM,OFFSET SPEED TOO LOW...91
7.BLADE,BOOM,OFFSET DO NOT MOVE...92
8.LEFT(OR RIGHT)SWING LACKS POWER OR SPEED...93
9.IMPOSSIBLE TO SWING TO LEFT(OR RIGHT)...94
10.HYDRAULIC DRIFT OF SWING ON SLOPES IS EXCESSIVE...95
11.SWING BRAKE ANGLE IS EXCESSIVE...96
12.MACHINE DEVIATES TO ONE SIDE WHEN TRAVELING...97
13.IMPOSSIBLE TO TRAVEL FORWARD(OR REVERSE)...98
30 DISASSEMBLY AND ASSEMBLY...99
METHOD OF READING MANUAL...101
SPECIAL TOOL LIST...103
WEIGHT TABLE...105
TIGHTENING TORQUE TABLE...106
LIST OF LUBRICANT AND WATER...108
STARTING MOTOR...109
REMOVAL...109
INSTALLATION...109
ALTERNATOR...109
REMOVAL...109
INSTALLATION...109
NOZZLE HOLDER...111
REMOVAL...111
INSTALLATION...111
RADIATOR...111
REMOVAL...111
INSTALLATION...111
FUEL INJECTION PUMP...113
REMOVAL...113
INSTALLATION...113
CYLINDER HEAD...115
REMOVAL...115
INSTALLAION...115
FAN PULLEY...117
REMOVAL...117
INSTALLATION...117
WATER PUMP...117
REMOVAL...117
INSTALLATION...117
THERMOSTAT...117
REMOVAL...117
INSTALLATION...117
ENGINE...119
REMOVAL...119
INSTALLATION...119
SWING CIRCLE...121
REMOVAL...121
INSTALLATION...121
SWING MACHINERY...121
REMOVAL...121
INSTALLATION...121
DISASSEMBLY...123
ASSEMBLY...125
CENTER SWIVEL JOINT...127
REMOVAL...127
INSTALLATION...127
DISASSEMBLY...127
ASSEMBLY...127
SWING MOTOR...129
REMOVAL...129
INSTALLATION...129
TRAVEL MOTOR...129
REMOVAL...129
INSTALLATION...129
REVOLVING FRAME...131
REMOVAL...131
INSTALLATION...131
IDLER...133
REMOVAL...133
INSTALLATION...133
RECOIL SPRING...133
REMOVAL...133
INSTALLAION...133
DISASSEMBLY...133
ASSEMBLY...133
TRACK ROLLER...135
REMOVAL...135
INSTALLATION...135
TRACK SHOE...137
REMOVAL...137
INSTALLAION...137
HYDRAULIC PUMP...139
REMOVAL...139
INSTALLATION...139
6-SPOOL CONTROL VALVE...141
REMOVAL...141
INSTALLATION...141
3-SPOOL CONTROL VALVE...141
REMOVAL...141
INSTALLATION...141
6-SPOOL CONTROL VALVE...143
DISASSEMBLY...143
ASSEMBLY...143
3-SPOOL CONTROL VALVE...145
DISASSEMBLY...145
ASSEMBLY...145
MAIN RELIEF VALVE...147
REMOVAL...147
INSTALLATION...147
DISASSEMBLY...147
ASSEMBLY...147
BOOM CYLINDER...149
REMOVAL...149
INSTALLATION...149
ARM CYLINDER...149
REMOVAL...149
INSTALLATION...149
BUCKET CYLINDER ...151
REMOVAL...151
INSTALLATION...151
BLADE CYLINDER...151
REMOVAL...151
INSTALLATION...151
OFFSET CYLINDER...153
REMOVAL...153
INSTALLATION...153
HYDRAULIC CYLINDER...155
DISASSEMBLY...155
ASSEMBLY...157
WORK EQUIPMENT...159
REMOVAL...159
INSTALLATION...159
BLADE...159
REMOVAL...159
INSTALLATION...159
ARM AND BUCKET...161
REMOVAL...161
INSTALLATION...161
BUCKET ...161
REMOVAL...161
INSTALLATION...161
ARM...163
REMOVAL...163
INSTALLATION...163
BOOM ...165
REMOVAL...165
INSTALLATION...165
SECOND BOOM...167
REMOVAL...167
INSTALLATION...167
THIRD BOOM...167
REMOVAL...167
INSTALLATION...167
SECONG AND THIRD BOOM(WITH ARM CYLINDER ASSEMBLY)...169
REMOVAL...169
INSTALLATION...169
FLOOR FRAME...169
REMOVAL...169
INSTALLATION...169
40 MAINTENANCE STANDARD...171
SWING MACHINERY...172
SWING CIRCLE...173
TRACK FRAME...174
IDLER...176
TRACK ROLLER...178
TRACK SHOE...180
SPROCKET...181
HYDRAULIC PUMP...182
6-SPOOL CONTROL VALVE...183
3-SPOOL CONTROL VALVE...185
CENTER SWIVEL JOINT...186
HYDRAULIC CYLINDER...187
WORK EQUIPMENT...188
COVER...1
1. FOREWORD...2
2. SAFETY INFORMATION...3
3. INTRODUCTION...4
4. LOCATION OF PLATES,TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR...5
5. CONTENTS...6
SAFETY...10
6. GENERAL PRECAUTIONS...11
7. PRECAUTION DURING OPERATION...16
7.1 BEFORE STARTING ENGINE...16
7.2 OPERATING MACHINE...18
7.3 TRANSPORTATION...23
7.4 BATTERY...24
7.5 TOWING...25
8. PRECAUTIONS FOR MAINTENANCE...26
8.1 BEFORE CARRYING OUT MAINTENANCE...26
8.2 DURING MAINTENANCE...29
9. POSITION FOR ATTACHING SAFETY LABELS...33
9.1 POSITION FOR ATTACHING SAFETY LABELS...33
OPERATION...36
10. GENERAL VIEW...37
10.1 GENERAL VIEW OF MACHINE...37
10.2 GENERAL VIEW OF CONTROLS AND GAUGES...38
11. EXPLANATION OF COMPONENTS...39
11.1 MACHINE MONITOR...40
11.2 SWITCHES...46
11.3 CONTROL LEVERS AND PEDALS...48
11.4 ENGINE HOOD...52
11.5 FUSE BOX...53
11.6 FUSIBLE LINK...53
11.7 COVER WITH LOCK...54
11.8 TOOL BOX...55
11.9 GREASE GUN HOLDER...55
12. OPERATION...56
12.1 CHECK BEFORE STARTING ENGINE...56
12.2 STARTING ENGINE...63
12.3 OPERATIONS AND CHECKS AFTER STARTING ENGINE...65
12.4 MOVING MACHINE OFF...68
12.5 STEERING MACHINE...70
12.6 STOPPING MACHINE...72
12.7 SWINGING...73
12.8 PROHIBITIONS FOR OPERATION...74
12.9 PRECAUTIONS FOR OPERATION...76
12.10 PRECAUTIONS WHEN TRAVELING UP OR DOWN HILLS...77
12.11 WORK POSSIBLE USING HYDRAULIC EXCAVATOR...79
12.12 PARKING MACHINE...81
12.13 CHECK AFTER FINISHING WORK...82
12.14 STOPPING ENGINE...82
12.15 CHECK AFTER STOPPING ENGINE...83
12.16 LOCKING...83
12.17 HOW TO ESCAPE FROM MUD...84
12.18 REPLACEMENT OF BUCKET...85
12.19 HANDLING 4-SYSTEM...87
12.20 HANDLING RUBBER SHOES (RUBBER SHOES ONLY)...97
13. TRANSPORTATION...102
13.1 LOADING,UNLOADING WORK...102
13.2 METHOD FOR LIFTING CHASSIS...104
13.3 PRECAUTIONS FOR LOADING...106
13.4 PRECAUTIONS FOR TRANSPORTATION...107
14. COLD WEATHER OPERATION...108
14.1 PRECAUTIONS FOR LOW TEMPERATURE...108
14.2 CAUTIONS AFTER COMPLETION OF WORK...110
14.3 PREPARING THE CAB HEATER (IF EQUIPPED)...111
14.4 AFTER COLD WEATHER...111
15. LONG-TERM STORAGE...112
15.1 BEFORE STORAGE...112
15.2 DURING STORAGE...113
15.3 AFTER STORAGE...113
16. TROUBLESHOOTING...114
16.1 PHENOMENA THAT ARE NOT FAILURES...114
16.2 METHOD OF TOWING MACHINE...116
16.3 PRECAUTIONS ON PARTICULAR JOBSITES...116
16.4 IF BATTERY IS DISCHARGED...117
16.5 OTHER TROUBLE...121
MAINTENANCE...126
17. GUIDES TO MAINTENANCE...127
18. OUTLINES OF SERVICE...130
18.1 OUTLINE OF OIL,FUEL,COOLANT...130
18.2 RELATING TO ELECTRIC SYSTEM...133
19. WEAR PARTS LIST...134
20. USE OF FUEL,COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE...135
21. STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS...139
21.1 INTRODUCTION OF NECESSARY TOOLS...139
21.2 TORQUE LIST...140
22. PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS...141
23. MAINTENANCE SCHEDULE CHART...143
23.1 MAINTENANCE SCHEDULE CHART...143
24. SERVICE PROCEDURE...146
24.1 INITIAL 250 HOURS SERVICE...146
24.2 WHEN REQUIRED...147
24.3 CHECK BEFORE STARTING...170
24.4 EVERY 100 HOURS SERVICE...174
24.5 EVERY 250 HOURS SERVICE...176
24.6 EVERY 500 HOURS SERVICE...181
24.7 EVERY 1000 HOURS SERVICE...184
24.8 EVERY 2000 HOURS SERVICE...186
SPECIFICATIONS...189
25. SPECIFICATIONS...190
OPTIONS,ATTACHMENTS...193
26. GENERAL PRECAUTIONS...194
26.1 PRECAUTIONS RELATED TO SAFETY...194
27. HANDLING BUCKET WITH HOOK...195
27.1 CHECKING FOR DAMAGE TO BUCKET WITH HOOK...195
27.2 PROHIBITED OPERATIONS...195
27.3 PRECAUTIONS DURING OPERATIONS...195
28. INTRODUCTION OF ATTACHMENTS...196
28.1 SPECIFICATION,USE...196
28.2 PRECAUTIONS WHEN INSTALLING ATTACHMENTS...197
28.3 HANDLING POWER TILT,MECHANICAL ANGLE BLADE...198
