This is the COMPLETE Service Repair Manual for the Komatsu PC27MR-2, PC30MR-2, PC35MR-2, PC40MR-2, PC50MR-2 Hydraulic Excavator. It contains deep information about maintaining, assembly, disassembly and servicing your Komatsu PC27MR-2, PC30MR-2, PC35MR-2, PC40MR-2, PC50MR-2 Hydraulic Excavator. MACHINE MODEL SERIAL NUMBER PC27MR-2 - 15001 and up PC30MR-2 - 20001 and up PC35MR-2 - 5001 and up PC40MR-2 - 8001 and up PC50MR-2 - 5001 and up PC27MR-2 mount the 3D82AE-5M engine. PC30MR-2 mount the 3D84E-5N engine. PC35MR-2 mount the S3D84E-5PBA and 3D88E-5P engine. PC40, 50MR-2 mounts the 4D88E-5X engine. For details of the engine, see the 68E-88E Series Engine Shop Manual. This Manual contains information and data to this model. has specs, diagrams, and actual real photo illustrations, and schemes, which give you complete step by step operations on repair, Diagnosing, servicing, technical maintenance & troubleshooting procedures for your machine. this manual offers full information you need for repair your machine. the information in this manual will enable you to find trouble and to understand how to repair and maintain your machine without going into service. YOU CAN DO THE REPAIRS YOURSELF AND SAVE MONEY $$$ SERVICE REPAIR MANUAL CONTAINS: ========= 01 GENERAL SPECIFICATION DIMENSION DRAWING WORKING RANGE DRAWING SPECIFICATIONS WEIGHT TABLE LUBRICANTS, FUEL AND COOLANT SPECIFICATIONS 10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD PTO COOLING SYSTEM POWER TRAIN SWING CIRCLE SWING MACHINERY TRACK FRAME IDLER CUSHION IDLER TRACK ROLLER CARRIER ROLLER SPROCKET TRACK SHOE HYDRAULIC COMPONENTS LAYOUT DRAWING HYDRAULIC TANK CENTER SWIVEL JOINT TRAVEL MOTOR HYDRAULIC CYLINDER SOLENOID VALVE MULTI-CONTROL VALVE HYDRAULIC PUMP CONTROL VALVE CLSS OPERATION FOR EACH FUNCTION AND VALVE SWING MOTOR PPC VALVE WORK EQUIPMENT DIMENSIONS OF EACH PART OF WORK EQUIPMENT FLOOR AIR CONDITIONER ENGINE CONTROL ELECTRIC CONTROL SYSTEM COMPONENT PARTS OF SYSTEM MONITOR SYSTEM MONITOR PANEL SENSORS 20 TESTING AND ADJUSTING STANDARD VALUE TABLE FOR ENGINE RELATED PARTS STANDARD VALUE TABLE FOR CHASSIS RELATED PARTS TESTING AND ADJUSTING TROUBLESHOOTING 30 DISASSEMBLY AND ASSEMBLY HOW TO READ THIS MANUAL PRECAUTIONS WHEN PERFORMING OPERATION SPECIAL TOOL LIST SKETCHES OF SPECIAL TOOLS REMOVAL AND INSTALLATION OF FUEL INJECTION PUMP ASSEMBLY REMOVAL AND INSTALLATION OF RADIATOR AND HYDRAULIC OIL COOLER ASSEMBLY REMOVAL AND INSTALLATION OF ENGINE AND HYDRAULIC PUMP ASSEMBLY REMOVAL AND INSTALLATION OF TRACK SHOE ASSEMBLY DISASSEMBLY AND ASSEMBLY OF IDLER ASSEMBLY DISASSEMBLY AND ASSEMBLY OF RECOIL SPRING ASSEMBLY DISASSEMBLY AND ASSEMBLY OF TRACK ROLLER ASSEMBLY DISASSEMBLY AND ASSEMBLY OF CARRIER ROLLER ASSEMBLY REMOVAL AND INSTALLATION OF CENTER SWIVEL JOINT ASSEMBLY DISASSEMBLY AND ASSEMBLY OF CENTER SWIVEL JOINT ASSEMBLY REMOVAL AND INSTALLATION OF FLOOR FRAME ASSEMBLY REMOVAL AND INSTALLATION OF SWING MOTOR AND SWING MACHINERY ASSEMBLY DISASSEMBLY AND ASSEMBLY OF SWING MOTOR AND SWING MACHINERY ASSEMBLY REMOVAL AND INSTALLATION OF WORK EQUIPMENT ASSEMBLY REMOVAL AND INSTALLATION OF REVOLVING FRAME ASSEMBLY REMOVAL AND INSTALLATION OF SWING CIRCLE ASSEMBLY DISASSEMBLY AND ASSEMBLY OF CONTROL VALVE ASSEMBLY DISASSEMBLY AND ASSEMBLY OF HYDRAULIC CYLINDER ASSEMBLY REMOVAL AND INSTALLATION OF AIR CONDITIONER UNIT ASSEMBLY REMOVAL AND INSTALLATION OF OPERATORS CAB GLASS (STUCK GLASS) REMOVAL AND INSTALLATION OF FRONT WINDOW ASSEMBLY 90 OTHERS HYDRAULIC CIRCUIT DIAGRAM PC27MR-2 PC30MR-2 PC35MR-2 . PC40MR, 50MR-2 PC40MR, 50MR-2 (Additional attachment circuit) ELECTRICAL CIRCUIT DIAGRAM PC27MR, 30MR-2 (1/2) PC27MR, 30MR-2 (2/2) PC35MR-2 (1/2) PC35MR-2 (2/2) PC40MR, 50MR-2 (1/2) PC40MR, 50MR-2 (2/2) ========= ** Model Specification: Komatsu PC27MR-2, PC30MR-2, PC35MR-2, PC40MR-2, PC50MR-2 Hydraulic Excavator ** Language: English ** Total Pages: 630 ** File Format: PDF ** Requirements: Adobe PDF Reader ** Compatible: All Versions of Windows & Mac, Linux OS, Iphone, Ipad, Android etc... ========= This QUALITY manual is 100 percents COMPLETE and INTACT, no MISSING/CORRUPT pages/sections to freak you out! It also is Bookmarked and SEARCHABLE to make what you need easy to find. Complete download comes in PDF format which can work under all PC based Windows operating system and Mac also. It saves to your hard-drive and can be burned to CD-ROM. It can be viewed on any computer, as well as zoomed and printed. INSTANT DOWNLOAD MEANS THERE IS NO SHIPPING COSTS or WAITING FOR A CD or PAPER MANUAL TO ARRIVE IN THE MAIL. YOU WILL RECEIVE THIS MANUAL TODAY VIA INSTANT DOWNLOAD ON COMPLETION OF PAYMENT VIA OUR SECURE PAYMENT PROCESSOR. WE ACCEPT ALL MAJOR CREDIT/DEBIT CARDS AND PAYPAL. BUY FROM US AND I GUARANTEE YOULL BE A SATISFIED CUSTOMER AND CONTACT US IF YOU HAVE ANY QUESTIONS. Looking for some other Service Repair Manual, please check: