Trusted Business
Verified & Licensed
Virus Free Files
100% Safe Downloads
Secure Payment
SSL Protected
Instant Delivery
Available Immediately
Sale!
Komatsu PC27MR-2, PC30MR-2, PC35MR-2, PC40-2, PC50MR-2 Hydraulic Excavator Shop Manual – PDF DOWNLOAD
Original price was: $64.95.$34.95Current price is: $34.95.
Komatsu PC27MR-2, PC30MR-2, PC35MR-2, PC40-2, PC50MR-2 Hydraulic Excavator Shop Manual
Book Code: SEBM032411
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
Instant PDF Download
Available immediately
Save to Your Device
Download & keep forever
Antivirus Scanned
100% virus-free
Trusted Worldwide
175,000+ customers
Description
Komatsu PC27MR-2, PC30MR-2, PC35MR-2, PC40-2, PC50MR-2 Hydraulic Excavator Shop Manual
FILE DETAILS:
Komatsu PC27MR-2, PC30MR-2, PC35MR-2, PC40-2, PC50MR-2 Hydraulic Excavator Shop Manual
Brands: Komatsu
Equipment Type: Hydraulic Excavator
Manuals Type: Shop Manual
Machine Model: PC27MR-2, PC30MR-2, PC35MR-2, PC40MR-2, PC50MR-2
Serial Number: 15001 and up, 20001 and up, 5001 and up, 8001 and up
Book Code: SEBM032411
Language: English
Pages: 630
File Format: Portable Document Format (PDF)
KOMATSU PC27MR-2, PC30MR-2, PC35MR-2, PC40-2, PC50MR-2 HYDRAULIC EXCAVATOR SHOP MANUAL – PDF DOWNLOAD:
IMAGES PREVIEW OF THE MANUAL:
DESCRIPTION:
Komatsu PC27MR-2, PC30MR-2, PC35MR-2, PC40-2, PC50MR-2 Hydraulic Excavator Shop Manual
FOREWORD:
GENERAL:
- This shop manual has been prepared as an aid to improve the quality of repairs by giving the serviceman an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you understand the contents of this manual and use it to full effect at every opportunity.
- This shop manual mainly contains the necessary technical information for operations performed in a service workshop. For ease of understanding, the manual is divided into the following chapters; these chapters are further divided into the each main group of components.
STRUCTURE AND FUNCTION:
This section explains the structure and function of each component. It serves not only to give an understanding of the structure, but also serves as reference material for troubleshooting. In addition, this section may contain hydraulic circuit diagrams, electric circuit diagrams, and maintenance standards.
TESTING AND ADJUSTING:
This section explains checks to be made before and after performing repairs, as well as adjustments to be made at completion of the checks and repairs. Troubleshooting charts correlating “Problems” with “Causes” are also included in this section.
DISASSEMBLY AND ASSEMBLY:
This section explains the procedures for removing, installing, disassembling and assembling each component, as well as precautions for them.
MAINTENANCE STANDARD:
This section gives the judgment standards for inspection of disassembled parts. The contents of this section may be described in STRUCTURE AND FUNCTION.
OTHERS:
This section mainly gives hydraulic circuit diagrams and electric circuit diagrams. In addition, this section may give the specifications of attachments and options together.
TABLE OF CONTENTS:
Komatsu PC27MR-2, PC30MR-2, PC35MR-2, PC40-2, PC50MR-2 Hydraulic Excavator Shop Manual
COVER........................................................................................................................... 1 CONTENTS........................................................................................................................ 2 01 GENERAL...................................................................................................................... 27 SPECIFICATION DIMENSION DRAWING............................................................................................. 28 WORKING RANGE DRAWING....................................................................................................... 30 SPECIFICATIONS.............................................................................................................. 32 WEIGHT TABLE................................................................................................................ 51 LUBRICANTS, FUEL AND COOLANT SPECIFICATIONS................................................................................. 59 10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD................................................................................. 61 PTO......................................................................................................................... 62 COOLING SYSTEM.............................................................................................................. 63 POWER TRAIN................................................................................................................. 66 SWING CIRCLE................................................................................................................ 68 SWING MACHINERY............................................................................................................. 69 TRACK FRAME................................................................................................................. 73 IDLER CUSHION............................................................................................................... 75 IDLER....................................................................................................................... 76 TRACK ROLLER................................................................................................................ 78 CARRIER ROLLER.............................................................................................................. 80 SPROCKET.................................................................................................................... 81 TRACK SHOE.................................................................................................................. 82 HYDRAULIC COMPONENTS LAYOUT DRAWING......................................................................................... 89 HYDRAULIC TANK.............................................................................................................. 91 CENTER SWIVEL JOINT......................................................................................................... 94 TRAVEL MOTOR................................................................................................................ 97 HYDRAULIC CYLINDER..........................................................................................................105 SOLENOID VALVE..............................................................................................................112 MULTI-CONTROL VALVE.........................................................................................................116 HYDRAULIC PUMP..............................................................................................................117 CONTROL VALVE...............................................................................................................135 CLSS........................................................................................................................172 OPERATION FOR EACH FUNCTION AND VALVE.......................................................................................175 SWING MOTOR.................................................................................................................217 PPC VALVE...................................................................................................................229 WORK EQUIPMENT..............................................................................................................237 DIMENSIONS OF EACH PART OF WORK EQUIPMENT...................................................................................240 FLOOR.......................................................................................................................251 AIR CONDITIONER.............................................................................................................253 ENGINE CONTROL..............................................................................................................254 ELECTRIC CONTROL SYSTEM.....................................................................................................256 COMPONENT PARTS OF SYSTEM...................................................................................................264 MONITOR SYSTEM..............................................................................................................265 MONITOR PANEL...............................................................................................................266 SENSORS.....................................................................................................................268 20 TESTING AND ADJUSTING........................................................................................................270 STANDARD VALUE TABLE FOR ENGINE RELATED PARTS...............................................................................271 STANDARD VALUE TABLE FOR CHASSIS RELATED PARTS..............................................................................276 TESTING AND ADJUSTING.......................................................................................................303 LIST OF TESTING,ADJUSTING, AND TROUBLESHOOTING TOOLS....................................................................304 MEASURING ENGINE SPEED..................................................................................................306 MEASUREMENT OF EXHAUST GAS COLOR........................................................................................307 ADJUSTING VALVE CLEARANCE...............................................................................................308 MEASURING COMPRESSION PRESSURE..........................................................................................310 MEASURING ENGINE OIL PRESSURE...........................................................................................311 TESTING AND ADJUSTING FUEL INJECTION TIMING.............................................................................312 TESTING AND ADJUSTING ALTERNATOR BELT TENSION...........................................................................315 TESTING AND ADJUSTING AIR CONDITIONER COMPRESSOR BELT TENSION...........................................................316 ADJUSTING FUEL CONTROL LEVER............................................................................................317 TESTING AND ADJUSTING TRACK SHOE TENSION................................................................................318 MEASUREMENT OF CLEARANCE IN SWING CIRCLE BEARINGS.......................................................................319 MEASURING AND ADJUSTING OIL PRESSURES IN WORK EQUIPMENT, TRAVEL, BOOM SWING, SWING,AND BLADE CIRCUITS...................320 MEASURING AND ADJUSTING LS DIFFERENTIAL PRESSURE........................................................................326 ADJUSTING PC VALVE......................................................................................................330 MEASURING CONTROL CIRCUIT OIL PRESSURE (OIL PRESSURE REDUCED BY SELF PRESSURE)..........................................331 MEASURING AND ADJUSTING CONTROL PUMP CIRCUIT OIL PRESSURE...............................................................332 MEASURING SOLENOID VALVE OUTPUT PRESSURE................................................................................334 MEASURING PPC VALVE OUTPUT PRESSURE.....................................................................................336 ADJUSTING PPC VALVE.....................................................................................................340 MEASURING SWING HOLDING BRAKE RELEASE PRESSURE..........................................................................341 TESTING AND ADJUSTING TRAVEL DEVIATION..................................................................................342 MEASUREMENT OF OIL LEAKAGE FROM WORK EQUIPMENT CYLINDER.................................................................344 BLEEDING AIR FROM EACH PART.............................................................................................346 RELEASING RESIDUAL PRESSURE FROM HYDRAULIC CIRCUIT......................................................................349 RELEASING RESIDUAL PRESSURE FROM HYDRAULIC TANK.........................................................................349 PRESSURIZING HYDRAULIC TANK.............................................................................................350 HOW TO OPEN AND CLOSE (TILT) FLOOR......................................................................................351 INSPECTION PROCEDURES FOR DIODE.........................................................................................355 TROUBLESHOOTING.............................................................................................................356 POINTS TO REMEMBER WHEN TROUBLESHOOTING.................................................................................357 SEQUENCE OF EVENTS IN TROUBLESHOOTING...................................................................................358 POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE........................................................................359 CHECKS BEFORE TROUBLESHOOTING...........................................................................................367 CLASSIFICATION AND PROCEDURES OF TROUBLESHOOTING........................................................................368 TYPES AND LOCATIONS OF CONNECTORS.......................................................................................371 CONNECTOR ARRANGEMENT DIAGRAM...........................................................................................377 CONNECTION TABLE FOR CONNECTOR PIN NUMBERS..............................................................................385 T-ADAPTER-BOXES AND T-ADAPTER TABLE.....................................................................................408 TROUBLESHOOTING OF ELECTRICAL SYSTEM (E-MODE)...........................................................................411 BEFORE STARTING E-MODE TROUBLESHOOTING..............................................................................412 INFORMATION CONTAINED IN TROUBLESHOOTING TABLE......................................................................413 E-1 ENGINE DOES NOT START...........................................................................................414 E-2 ENGINE DOES NOT STOP............................................................................................422 E-3 WHEN WORK EQUIPMENT LOCK (PPC BASIC PRESSURE LOCK) LEVER IS SET IN LOCK POSITION, WORK EQUIPMENT STILL MOVES....426 E-4 WINDSHIELD WIPER DOES NOT OPERATE...............................................................................430 E-5 WINDSHIELD WASHER DOES NOT OPERATE..............................................................................432 E-6 TRAVEL ALARM DOES NOT SOUND.....................................................................................436 E-7 DEFECTIVE AIR CONDITIONER.......................................................................................440 TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (H-MODE).............................................................448 INFORMATION CONTAINED IN TROUBLESHOOTING TABLE......................................................................449 H-1 SPEED OR POWER OF WHOLE WORK EQUIPMENT, TRAVEL,SWING,AND BLADE IS LOW...........................................450 H-2 ENGINE SPEED LOWERS EXTREMELY OR ENGINE STALLS..................................................................454 H-3 WHOLE WORK EQUIPMENT, TRAVEL SYSTEM, SWING SYSTEM, AND BLADE DO NOT WORK........................................455 H-4 ABNORMAL SOUND COMES OUT FROM AROUND HYDRAULIC PUMP.............................................................459 H-5 FINE CONTROL PERFORMANCE OR RESPONSE IS LOW.....................................................................459 H-6 SPEED OR POWER OF BOOM IS LOW...................................................................................460 H-7 SPEED OR POWER OF ARM IS LOW....................................................................................461 H-8 SPEED OR POWER OF BUCKET IS LOW.................................................................................462 H-9 SPEED OR POWER OF BOOM SWING IS LOW.............................................................................463 H-10 WORK EQUIPMENT DOES NOT MOVE SINGLY............................................................................463 H-11 WORK EQUIPMENT HYDRAULIC DRIFT IS LARGE........................................................................464 H-12 TIME LAG OF WORK EQUIPMENT IS LARGE............................................................................465 H-13 IN COMPOUND OPERATION OF WORK EQUIPMENT, SPEED OF PART LOADED MORE IS LOW......................................465 H-14 MACHINE DEVIATES DURING TRAVEL.................................................................................466 H-15 TRAVEL SPEED OR TRAVEL POWER IS LOW (WHILE WORK EQUIPMENT IS NORMAL)...........................................468 H-16 MACHINE IS NOT STEERED WELL OR STEERING POWER IS LOW...........................................................469 H-17 TRAVEL SPEED DOES NOT CHANGE...................................................................................470 H-18 TRAVEL MOTOR DOES NOT WORK.....................................................................................471 H-19 SPEED OR POWER OF SWING IS LOW.................................................................................473 H-20 MACHINE DOES NOT SWING.........................................................................................475 H-21 SWING ACCELERATION PERFORMANCE IS LOW..........................................................................477 H-22 MACHINE OVERRUNS WHEN IT STOPS SWINGING........................................................................479 H-23 LARGE SHOCK IS MADE WHEN MACHINE STOPS SWINGING................................................................480 H-24 LARGE SHOCK IS MADE WHEN MACHINE STOPS SWINGING,IT MAKES LARGE SOUND...........................................480 H-25 HYDRAULIC DRIFT OF SWING IS LARGE..............................................................................481 H-26 SPEED OR POWER OF BLADE IS LOW.................................................................................482 H-27 BLADE DOES NOT MOVE............................................................................................483 H-28 HYDRAULIC DRIFT OF BLADE IS LARGE..............................................................................483 TROUBLESHOOTING OF MONITOR PANEL SYSTEM (M-MODE)........................................................................484 BEFORE STARTING M-MODE TROUBLESHOOTING..............................................................................485 INFORMATION CONTAINED IN TROUBLESHOOTING TABLE......................................................................486 SYSTEM DIAGRAM RELATED TO MONITOR PANEL.............................................................................487 M-1 WHEN STARTING SWITCH IS TURNED ON, ANY ITEM DOES NOT OPERATE....................................................489 M-2 WHEN STARTING SWITCH IS TURNED ON, SOME ITEMS DO NOT OPERATE....................................................491 M-3 ALARM BUZZER IS ABNORMAL........................................................................................492 M-4 ENGINE OIL PRESSURE CAUTION IS TURNED ON........................................................................494 M-5 CHARGE LEVEL CAUTION IS TURNED ON...............................................................................495 M-6 PREHEATING SYSTEM DOES NOT OPERATE OR PREHEATER DOES NOT BECOME HOT.............................................499 M-7 COOLANT TEMPERATURE GAUGE IS ABNORMAL...........................................................................501 M-8 FUEL LEVEL GAUGE IS ABNORMAL....................................................................................506 M-9 SERVICE METER DOES NOT OPERATE WHILE ENGINE IS RUNNING .........................................................510 M-10 2ND TRAVEL SPEED IS NOT SELECTED...............................................................................512 M-11 WORKING LAMP DOES NOT LIGHT UP.................................................................................517 TROUBLESHOOTING OF ENGINE (S-MODE)......................................................................................520 METHOD OF USING TROUBLESHOOTING CHARTS..............................................................................521 S-1 STARTING PERFORMANCE IS POOR (STARTING ALWAYS TAKES TIME).......................................................525 S-2 ENGINE DOES NOT START...........................................................................................527 S-3 ENGINE DOES NOT PICK UP SMOOTHLY (FOLLOW-UP IS POOR)............................................................530 S-4 ENGINE STOPS DURING OPERATIONS..................................................................................531 S-5 ENGINE DOES NOT ROTATE SMOOTHLY (HUNTING).......................................................................532 S-6 ENGINE LACKS OUTPUT OR LACKS POWER..............................................................................533 S-7 EXHAUST SMOKE IS BLACK (INCOMPLETE COMBUSTION)..................................................................534 S-8 OIL CONSUMPTION IS EXCESSIVE OR EXHAUST SMOKE IS BLUE...........................................................535 S-9 OIL BECOMES CONTAMINATED QUICKLY................................................................................536 S-10 FUEL CONSUMPTION IS EXCESSIVE..................................................................................537 S-11 OIL IS IN COOLANT, OR WATER SPURTS BACK, OR WATER LEVEL GOES DOWN..............................................538 S-12 OIL PRESSURE CAUTION LAMP LIGHTS UP (DROP IN OIL PRESSURE).....................................................539 S-13 OIL LEVEL RISES (WATER, FUEL IN OIL)...........................................................................540 S-14 COOLANT TEMPERATURE BECOMES TOO HIGH (OVERHEATING).............................................................541 S-15 ABNORMAL NOISE IS MADE.........................................................................................542 S-16 VIBRATION IS EXCESSIVE.........................................................................................543 30 DISASSEMBLY AND ASSEMBLY.....................................................................................................544 HOW TO READ THIS MANUAL.....................................................................................................545 PRECAUTIONS WHEN PERFORMING OPERATION.......................................................................................547 SPECIAL TOOL LIST...........................................................................................................551 SKETCHES OF SPECIAL TOOLS...................................................................................................555 REMOVAL AND INSTALLATION OF FUEL INJECTION PUMP ASSEMBLY....................................................................556 REMOVAL AND INSTALLATION OF RADIATOR AND HYDRAULIC OIL COOLER ASSEMBLY......................................................558 REMOVAL AND INSTALLATION OF ENGINE AND HYDRAULIC PUMP ASSEMBLY..............................................................565 REMOVAL AND INSTALLATION OF TRACK SHOE ASSEMBLY.............................................................................572 DISASSEMBLY AND ASSEMBLY OF IDLER ASSEMBLY..................................................................................573 DISASSEMBLY AND ASSEMBLY OF RECOIL SPRING ASSEMBLY..........................................................................575 DISASSEMBLY AND ASSEMBLY OF TRACK ROLLER ASSEMBLY...........................................................................578 DISASSEMBLY AND ASSEMBLY OF CARRIER ROLLER ASSEMBLY.........................................................................580 REMOVAL AND INSTALLATION OF CENTER SWIVEL JOINT ASSEMBLY....................................................................581 DISASSEMBLY AND ASSEMBLY OF CENTER SWIVEL JOINT ASSEMBLY....................................................................584 REMOVAL AND INSTALLATION OF FLOOR FRAME ASSEMBLY............................................................................586 REMOVAL AND INSTALLATION OF SWING MOTOR AND SWING MACHINERY ASSEMBLY........................................................590 DISASSEMBLY AND ASSEMBLY OF SWING MOTOR AND SWING MACHINERY ASSEMBLY........................................................591 REMOVAL AND INSTALLATION OF WORK EQUIPMENT ASSEMBLY.........................................................................597 REMOVAL AND INSTALLATION OF REVOLVING FRAME ASSEMBLY........................................................................599 REMOVAL AND INSTALLATION OF SWING CIRCLE ASSEMBLY...........................................................................601 DISASSEMBLY AND ASSEMBLY OF CONTROL VALVE ASSEMBLY..........................................................................602 DISASSEMBLY AND ASSEMBLY OF HYDRAULIC CYLINDER ASSEMBLY.....................................................................603 REMOVAL AND INSTALLATION OF AIR CONDITIONER UNIT ASSEMBLY...................................................................607 REMOVAL AND INSTALLATION OF OPERATOR'S CAB GLASS (STUCK GLASS)..............................................................610 REMOVAL AND INSTALLATION OF FRONT WINDOW ASSEMBLY...........................................................................618 90 OTHERS.......................................................................................................................619 HYDRAULIC CIRCUIT DIAGRAM PC27MR-2..........................................................................................620 HYDRAULIC CIRCUIT DIAGRAM PC30MR-2..........................................................................................621 HYDRAULIC CIRCUIT DIAGRAM PC35MR-2..........................................................................................622 HYDRAULIC CIRCUIT DIAGRAM PC40MR, 50MR-2....................................................................................623 HYDRAULIC CIRCUIT DIAGRAM PC40MR, 50MR-2 (ADDITIONAL ATTACHMENT CIRCUIT) ...................................................624 ELECTRICAL CIRCUIT DIAGRAM PC27MR, 30MR-2 (1/2).............................................................................625 ELECTRICAL CIRCUIT DIAGRAM PC27MR, 30MR-2 (2/2).............................................................................626 ELECTRICAL CIRCUIT DIAGRAM PC35MR-2 (1/2)...................................................................................627 ELECTRICAL CIRCUIT DIAGRAM PC35MR-2 (2/2)...................................................................................628 ELECTRICAL CIRCUIT DIAGRAM PC40MR, 50MR-2 (1/2).............................................................................629 ELECTRICAL CIRCUIT DIAGRAM PC40MR, 50MR-2 (2/2).............................................................................630
PLEASE NOTE:
- This is the SAME MANUAL used by the dealerships to diagnose your vehicle
- No waiting for couriers / posts as this is a PDF manual and you can download it within 2 minutes time once you make the payment.
- Your payment is all safe and the delivery of the manual is INSTANT – You will be taken to the DOWNLOAD PAGE.
- So have no hesitations whatsoever and write to us about any queries you may have : heydownloadss @gmail.com
