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Introduction of parts for the disconnection of the taper seal type hoses and
tubes

Nominal No.

Hose side

Pipe joint side

Plug (1)

Nut (2)

07376-50210

07222-00210

07376-50315

07222-00312

07376-50422

07222-00414

07376-50522

07222-00515

07376-50628

07222-00616

07376-51034

07222-01018

07376-51234

07222-01219

07376-51443

07222-01422

Introduction of parts for the disconnection of the split flange type hoses and
tubes

Nomi
nal
No.

Bolt pitch (mm)

Hose side

Tube side

O-ring (4)

Bolt (5)

Washer (6)

Flange (1)

Split flange
(2)

Sleeve head
(3)

38.1

17.5

07379-00400 07371-30400 07378-10400 07000-12021 01010-80825 01643-50823

42.9

19.8

07379-00500 07371-30500 07378-10500 07000-13022 01010-80830 01643-50823

47.6

22.2

07379-00640 07371-30640 07378-10600 07000-13025 07372-51035 01643-51032

52.4

26.2

07379-01044 07371-31049 07378-11000 07000-13032 07372-51035 01643-51032

00 INDEX AND FOREWORD

PRECAUTIONS FOR DISCONNECTION AND CONNECTION OF PIP-

INGS

PC78US-10

00-39

Содержание PC78US-10

Страница 1: ...HYDRAULIC EXCAVATOR SEN06518 03 PC78US 10 SERIAL NUMBERS 30001 and up...

Страница 2: ...Find manuals at https best manuals com...

Страница 3: ...00 INDEX AND FOREWORD PC78US 10 00 1 Find manuals at https best manuals com...

Страница 4: ...0 61 METHOD FOR DISCONNECTING AND CONNECTING CONNECTOR WITH HOUSING TO ROTATE 00 63 HOW TO READ ELECTRICAL WIRE CODE 00 64 EXPLANATION OF TERMS FOR MAINTENANCE STANDARD 00 68 STANDARD TIGHTENING TORQU...

Страница 5: ...OF WORK EQUIPMENT 10 233 FUNCTION OF WORK EQUIPMENT 10 234 WORK EQUIPMENT CLEARANCE ADJUSTMENT SHIM 10 235 BUCKET CLEARANCE ADJUSTMENT SHIM 10 236 CAB AND ITS ATTACHMENTS 10 237 ROPS CAB 10 237 CAB MO...

Страница 6: ...N WORK EQUIPMENT 30 94 TEST OIL LEAKAGE 30 96 BLEED AIR FROM HYDRAULIC CIRCUIT 30 100 CAB AND ITS ATTACHMENTS 30 105 METHOD FOR ADJUSTING MIRRORS 30 105 TEST AND ADJUST ENGINE HOOD CATCHER 30 107 ELEC...

Страница 7: ...0 160 FAILURE CODE CA132 40 162 FAILURE CODE CA144 40 164 FAILURE CODE CA145 40 166 FAILURE CODE CA153 40 168 FAILURE CODE CA154 40 170 FAILURE CODE CA187 40 172 FAILURE CODE CA221 40 174 FAILURE CODE...

Страница 8: ...AILURE CODE CA2357 40 261 FAILURE CODE CA2765 40 262 FAILURE CODE CA3419 40 263 FAILURE CODE CA3421 40 265 FAILURE CODE CA3724 40 267 FAILURE CODE CA3918 40 269 FAILURE CODE CA3919 40 270 FAILURE CODE...

Страница 9: ...CODE DWJ0KA 40 392 FAILURE CODE DWJ0KB 40 394 FAILURE CODE DWJ0KY 40 396 FAILURE CODE DXA8KA 40 397 FAILURE CODE DXA8KB 40 399 FAILURE CODE DXE4KA 40 401 FAILURE CODE DXE4KB 40 403 FAILURE CODE DXE4K...

Страница 10: ...R DOES NOT CHANGE 40 455 E 26 WHEN TRAVEL SPEED SELECTION IS CHANGED ACTUAL TRAVEL SPEED DOES NOT CHANGE 40 456 E 27 ALARM BUZZER CANNOT BE CANCELED 40 457 E 28 SERVICE METER IS NOT DISPLAYED WHILE ST...

Страница 11: ...M IS LARGE 40 530 H 13 HYDRAULIC DRIFT OF BUCKET IS LARGE 40 531 H 14 HYDRAULIC DRIFT OF BLADE IS LARGE 40 532 H 15 WHEN SINGLE WORK EQUIPMENT IS RELIEVED HYDRAULICALLY OTHER WORK EQUIP MENT MOVES 40...

Страница 12: ...0 DISASSEMBLY AND ASSEMBLY 50 1 CONTENTS 50 2 ABBREVIATION LIST 50 6 RELATED INFORMATION ON DISASSEMBLY AND ASSEMBLY 50 12 HOW TO READ THIS MANUAL 50 12 COATING MATERIALS LIST 50 14 SPECIAL TOOLS LIST...

Страница 13: ...Y 50 312 REMOVE AND INSTALL ANTI DROP VALVE ASSEMBLY FOR BOOM 50 318 REMOVE AND INSTALL ANTI DROP VALVE ASSEMBLY FOR ARM 50 322 DISASSEMBLE AND ASSEMBLE ANTI DROP VALVE ASSEMBLY 50 326 DISASSEMBLE AND...

Страница 14: ...PRESSURE CIRCUIT 60 65 MAINTENANCE STANDARD OF CENTER SWIVEL JOINT 60 66 WORK EQUIPMENT 60 67 MAINTENANCE STANDARD OF WORK EQUIPMENT LINKAGE 60 67 MAINTENANCE STANDARD OF BOOM CYLINDER 60 76 MAINTENAN...

Страница 15: ...3 A 2 TROUBLESHOOTING FOR COMPRESSOR AND REFRIGERANT SYSTEM AIR IS NOT COOLED 80 75 A 3 TROUBLESHOOTING FOR BLOWER MOTOR SYSTEM NO AIR COMES OUT OR AIR FLOW IS ABNORMAL 80 78 A 4 TROUBLESHOOTING FOR F...

Страница 16: ...CIRCUIT DIAGRAM FOR EUROPEAN UNION 4 6 90 41 ELECTRICAL CIRCUIT DIAGRAM FOR EUROPEAN UNION 5 6 90 43 ELECTRICAL CIRCUIT DIAGRAM FOR EUROPEAN UNION 6 6 90 45 INDEX 1 INDEX 00 INDEX AND FOREWORD 00 14...

Страница 17: ...on auto matically applies the retarder with a constant braking force HD HM ARSC Automatic Retarder Speed Control Travel and brake When the accelerator pedal is released while the machine is traveling...

Страница 18: ...ydraulic system This mechanism allows actuators to be operated in proportion to the current supplied FOPS Falling Object Protective Structure Cab and canopy This structure protects the operator s head...

Страница 19: ...d at the same time activates the in ter axle differential lock when the wheels idle while the machine travels on the soft ground road HM LCD Liquid Crystal Display Machine monitor Image display equipm...

Страница 20: ...k equipment This function performs hydraulic control of the tilt and pitch of the bulldozer blade D ROPS Roll Over Protective Structure Cab and canopy Sturcture protects the operator who wear the seat...

Страница 21: ...eviations used in the circuit diagrams Abbreviation Actual word spelled out A C Air Conditioner A D Analogue to Digital A M Air Mix Damper ACC Accessory ADD Additional AUX Auxiliary BR Battery Relay C...

Страница 22: ...Abbreviation Actual word spelled out T C Torque Converter T M Transmission ABBREVIATION LIST 00 INDEX AND FOREWORD 00 20 PC78US 10...

Страница 23: ...d adjusting and troubleshooting Use the standard values table to check the standard values for testing and adjusting and judge troubles in troubleshooting 30 TESTING AND ADJUSTING This section describ...

Страница 24: ...ing posture for slinging work Tightening torque This signal indicates the tightening torque for portions which requires spe cial care in assembling work Coat This signal indicates a place to be coated...

Страница 25: ...in good physical condition and good preparation Always be alert and careful General precautions k If the machine is handled incorrectly it is dangerous Read and understand what is described in the ope...

Страница 26: ...levers and hang UNDER REPAIR warning tag on them When performing the disassembling or assembling work support the machine securely with blocks jacks or stands before starting the work Remove all mud...

Страница 27: ...caught in ro tating parts or moving parts When raising a heavy component heavier than 25 kg use a hoist or crane Before starting work check that the slings wire ropes webbing slings chains and hooks a...

Страница 28: ...workers must communicate with each other fre quently The appointed signaler must make specified signals clearly at a place where he is well seen from the operator s seat and where he can see the worki...

Страница 29: ...ok is maximum at its central part Never use a wire rope which has breaks in strands A re duced diameter B or kinks C There is a danger that the rope may break during the towing operation Precautions f...

Страница 30: ...to work and passage After operating the hoist do not swing the control switch Remember the position of the main switch so that you can turn off the power immediately in an emer gency If the hoist stop...

Страница 31: ...to use 2 wrenches use one wrench to fix and use the other one to loosen the nut Precautions for air conditioner piping When installing the air conditioner piping be careful so that dirt dusts and wate...

Страница 32: ...g An O ring is fitted to every joint of the air conditioner piping For tightening torques see THE OTHER INFORMATION Pre cautions for disconnection and connection of air conditioner piping SAFETY NOTIC...

Страница 33: ...r attached to or around the engine exhaust manifold muffler or battery or on the undercovers To prevent fires from being caught remove any flammable materials such as dry leaves chips pieces of paper...

Страница 34: ...See the Operation and Maintenance Manual for the setting procedure Explosion caused by lighting equipment When checking fuel oil battery electrolyte or coolant always use lighting equipment with anti...

Страница 35: ...hen they are inhaled Do not breathe the fumes After a fire there may be harmful compounds left If they touch your skin they may have a bad influence on your body Be sure to wear rubber gloves when han...

Страница 36: ...as or lakes Obey appropriate laws and regulations when disposing of harmful objects such as oil fuel coolant solvent filters and batteries Avoid exposure to burning rubber or plastics which produce a...

Страница 37: ...he remaining pressure from the hydraulic circuit always before performing the work In the field there is a risk of dust entering the component during disassembling or maintenance work and perform ance...

Страница 38: ...ARK Drain the old hydraulic oil not only from the hydraulic tank but also from the filter and drain plug in the cir cuit Avoid reusing the hydraulic oil and lubricating oil Avoid reusing the hydraulic...

Страница 39: ...can remove the ultra fine approxi mately 3 m particles that the filter built in the hydraulic equip ment cannot remove So it is very effective device 00 INDEX AND FOREWORD PRECAUTIONS FOR HANDLING HY...

Страница 40: ...ickness and number of shims when storing shims When hoisting the components prepare the slings with sufficient strength When using forcing screws to remove any component tighten the forcing screws uni...

Страница 41: ...n of the split flange type hoses and tubes Nomi nal No Bolt pitch mm Hose side Tube side O ring 4 Bolt 5 Washer 6 a b Flange 1 Split flange 2 Sleeve head 3 04 38 1 17 5 07379 00400 07371 30400 07378 1...

Страница 42: ...1643 51232 30 106 4 62 07379 03010 07371 13010 07378 13000 07000 12085 07372 51650 01643 51645 34 120 6 69 8 07379 03411 07371 13411 07378 13400 07000 12100 07372 51650 01643 51645 40 130 2 77 8 07379...

Страница 43: ...ops of adhesive to the threaded portion When applying liquid gasket clean and degrease the surface and apply it uniformly after making sure that the surface is free from dust or damage Clean all of th...

Страница 44: ...specified amount of grease to the work equipment parts When the coolant is drained be sure that the drain valve is securely tightened then refill the coolant reser voir with the coolant Komatsu recom...

Страница 45: ...ts installation portion If there is any damage replace the part Check that there is no looseness on the exhaust equipment and mounting bolts nuts and clamps on the instal lation portion If there is an...

Страница 46: ...necessary to be extremely careful when handling and maintenance of the wiring harnesses If AdBlue DEF is spilled over wiring harness and connectors it may cause corrosion and defective contact Be care...

Страница 47: ...icity Entry of water dirt or dust when disconnecting a con nector If any water mud or dust is stuck to the outside surface of a connector it can enter inside the connector when the connector is discon...

Страница 48: ...y pollute the environ ment Do not discard the oil inconsiderately Ask the customer for disposal or bring it back to dispose it appropriately How to clean parts when dirt is stuck If any dirt or dust s...

Страница 49: ...en servicing the intake system Select an appropriate workplace Avoid the work of adding hydraulic oil replacing filters or repairing the machine in rainy or windy weather or in dusty environment Seali...

Страница 50: ...undness of machine in addition to KOMTRAX function described above These data can be used on per sonal computer screens How to make a full use of KOMTRAX Making use of KOMTRAX enables the following ac...

Страница 51: ...This as a preview PDF file from best manuals com Download full PDF manual at best manuals com...

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