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KOMATSU PC27R-8 DELUXE HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (SN:F31103 & UP) KOMATSU PC27R-8 – PDF DOWNLOAD
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- KOMATSU PC27R-8 DELUXE HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL
- SERIAL NUMBER:F31103 & UP
- PUBLICATION NUMBER:WEBM003800
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Description
KOMATSU PC27R-8 DELUXE HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (SN:F31103 & UP) KOMATSU PC27R-8
KOMATSU PC27R-8 DELUXE HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (SN:F31103 & UP) KOMATSU PC27R-8 – PDF DOWNLOAD:
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DESCRIPTION:
KOMATSU PC27R-8 DELUXE HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (SN:F31103 & UP) KOMATSU PC27R-8
- This shop manual has been prepared as an aid to improve the quality of repairs by giving the operator 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. The manual is divided into chapters on each main group of components; these chapters are further divided into the following sections.
- 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. - TESTING AND ADJUSTING
This sections explains checks to be made before and after performing repairs, as well as iadjustments to be made at completion of the checks and repairs. Troubleshooting charts correlating «Problems» to «Causes» are also included in this section. - DISASSEMBLY AND ASSEMBLY
This section explains the order to be followed when removing, installing, disassembling or assembling each component, as well as precautions to be taken for these operations. - MAINTENANCE STANDARD
This section gives the judgement standards when inspecting disassembled parts.
TABLE OF CONTENTS:
KOMATSU PC27R-8 DELUXE HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (SN:F31103 & UP) KOMATSU PC27R-8
MAIN MENU.................................................................................... 0 COVER........................................................................................ 1 CONTENTS..................................................................................... 3 SAFETY....................................................................................... 7 FOREWORD..................................................................................... 9 HOW TO READ THE SHOP MANUAL.............................................................. 10 HOISTING INSTRUCTIONS.................................................................... 11 STANDARD TIGHTENING TORQUE............................................................... 12 COATING MATERIALS........................................................................ 14 ELECTRIC WIRE CODE....................................................................... 15 WEIGHT TABLE............................................................................. 16 TABLE OF OIL COOLANT QUANTITIES.......................................................... 17 10. STRUCTURE AND FUNCTION................................................................... 21 POWER TRAIN.............................................................................. 22 SWING CIRCLE............................................................................. 23 SWING MACHINERY.......................................................................... 24 FINAL DRIVE.............................................................................. 25 TRACK FRAME.............................................................................. 26 RECOIL SPRING............................................................................ 27 CARRIER ROLLER........................................................................... 28 TRACK ROLLER............................................................................. 28 STEEL SHOE............................................................................... 29 HYDRAULIC SYSTEM......................................................................... 31 HYDRAULIC CIRCUIT DIAGRAM................................................................ 33 HYDRAULIC PUMP........................................................................... 34 CONTROL VALVE............................................................................ 54 CLSS..................................................................................... 62 SWIVEL JOINT............................................................................. 79 SWING MOTOR.............................................................................. 80 TRAVEL MOTOR............................................................................. 82 CYLINDER................................................................................. 84 ACCUMULATOR.............................................................................. 87 PPC VALVE................................................................................ 88 SOLENOID VALVE........................................................................... 95 ELECTRICAL DIAGRAM (1/3)................................................................. 97 ELECTRICAL DIAGRAM (2/3)................................................................. 99 ELECTRICAL DIAGRAM (3/3).................................................................101 20. TESTING AND ADJUSTING....................................................................105 NORMAL OR STANDARD TECHNICAL DATA........................................................106 SPECIAL TOOLS............................................................................117 CHECKING THE ENGINE SPEED................................................................119 ADJUSTMENT OF VALVE CLEARANCE............................................................120 MEASUREMENT OF THE COMPRESSION PRESSURE..................................................121 CONTROL AND ADJUSTMENT OF THE TENSION OF THE FAN BELT....................................122 CONTROL AND ADJUSTMENT OF THE INJECTION TIMING...........................................123 CONTROL AND ADJUSTMENT OF THE ACCELERATOR STROKE.........................................125 ADJUSTMENT OF THE STROKE OF THE BLADE COMMAND LEVER......................................126 ADJUSTING THE FLEXIBLE CABLES............................................................127 CONTROL AND ADJUSTMENT OF THE STROKE OF THE TRAVEL LEVER.................................128 ADJUSTMENT OF THE STROKE OF THE BOOM SWING COMMAND PEDAL.................................129 ADJUSTMENT OF THE PPC VALVE CLEARANCE....................................................130 ADJUSTMENT OF THE RUBBER PAD AND SAFETY MICROSWITCH FOR SERVO-CONTROL ENGAGEMENT.........131 CONTROL AND ADJUSTMENT OF THE TRACK-SHOE TENSION.........................................132 CONTROL AND REGULATION OF THE PRESSURES IN THE HYDRAULIC CIRCUITS........................133 CONTROL AND REGULATION OF THE LS DIFFERENTIAL PRESSURE AND ADJUSTMENT OF THE LS VALVE....136 REGULATION OF THE PC VALVE...............................................................138 CONTROL AND REGULATION OF THE SERVO-CONTROL POWER SUPPLY.................................139 ELIMINATION OF RESIDUAL PRESSURES - PRESSURIATION OF THE TANK............................140 BLEEDING AIR FROM THE HYDRAULIC CIRCUITS.................................................141 CONTROL OF HYDRAULIC DRIFT - ANALYSIS OF THE CAUSES OF A DRIFT...........................143 CHECKING FOR ANY LEAKAGES INSIDE THE WORKING EQUIPMENT CYLINDERS.........................149 CHECKING FOR ANY LEAKAGES INSIDE THE SWING MOTOR.........................................150 METHODS FOR TESTING FOR LEAKAGES INSIDE THE SWIVEL JOINT.................................151 30. REMOVAL AND INSTALLATION.................................................................155 HOW TO READ THE MANUAL...................................................................157 PRECAUTIONS TO BE TAKEN WHILE WORKING....................................................158 SPECIAL TOOLS............................................................................159 STARTER MOTOR............................................................................161 REMOVAL..............................................................................161 INSTALLATION.........................................................................161 ALTERNATOR...............................................................................162 REMOVAL..............................................................................162 INSTALLATION.........................................................................162 INJECTION PUMP...........................................................................163 REMOVAL..............................................................................163 INSTALLATION.........................................................................164 NOZZLE HOLDER............................................................................165 REMOVAL..............................................................................165 INSTALLATION.........................................................................165 WATER COOLANT PUMP.......................................................................166 REMOVAL..............................................................................166 INSTALLATION.........................................................................167 CYLINDER HEAD............................................................................168 REMOVAL..............................................................................168 INSTALLATION.........................................................................169 ENGINE HOOD..............................................................................170 REMOVAL..............................................................................170 INSTALLATION.........................................................................170 CANOPY...................................................................................171 REMOVAL..............................................................................171 INSTALLATION.........................................................................171 CAB......................................................................................172 REMOVAL..............................................................................172 INSTALLATION.........................................................................172 HEATING FAN..............................................................................173 REMOVAL..............................................................................173 INSTALLATION.........................................................................174 COUNTERWEIGHT............................................................................175 REMOVAL..............................................................................175 INSTALLATION.........................................................................175 FUEL TANK................................................................................176 REMOVAL..............................................................................176 INSTALLATION.........................................................................176 HYDRAULIC TANK...........................................................................177 REMOVAL..............................................................................177 INSTALLATION.........................................................................178 OIL-COOLER - RADIATOR GROUP..............................................................179 REMOVAL..............................................................................179 INSTALLATION.........................................................................180 ENGINE-PUMP GROUP........................................................................181 REMOVAL..............................................................................181 INSTALLATION.........................................................................183 PUMP.....................................................................................184 REMOVAL..............................................................................184 INSTALLATION.........................................................................184 ENGINE-PUMP COUPLING.....................................................................185 REMOVAL..............................................................................185 INSTALLATION.........................................................................185 LATERAL LOWER COVER......................................................................186 REMOVAL..............................................................................186 INSTALLATION.........................................................................186 INNER CONTROL VALVE BOX COVER............................................................187 REMOVAL..............................................................................187 INSTALLATION.........................................................................187 CONTROL VALVE............................................................................188 REMOVAL..............................................................................188 INSTALLATION.........................................................................189 LEFT-HAND PPC VALVE (ARM-BUCKET).........................................................190 REMOVAL..............................................................................190 INSTALLATION.........................................................................190 RIGHT-HAND PPC VALVE (BOOM-BUCKET).......................................................191 REMOVAL..............................................................................191 INSTALLATION.........................................................................191 SERVOCNTROL SOLENOID GROUP...............................................................192 REMOVAL..............................................................................192 INSTALLATION.........................................................................192 PLATFORM.................................................................................193 REMOVAL..............................................................................193 INSTALLATION.........................................................................195 SWIVEL JOINT.............................................................................196 REMOVAL..............................................................................196 INSTALLATION.........................................................................196 SWING MACHINERY..........................................................................197 REMOVAL..............................................................................197 INSTALLATION.........................................................................198 REVOLVING FRAME..........................................................................199 REMOVAL..............................................................................199 INSTALLATION.........................................................................200 SWING CIRCLE.............................................................................201 REMOVAL..............................................................................201 INSTALLATION.........................................................................201 RUBBER TRACK SHOES.......................................................................202 REMOVAL..............................................................................202 INSTALLATION.........................................................................202 STEEL TRACK SHOES........................................................................203 REMOVAL..............................................................................203 INSTALLATION.........................................................................203 SPROCKET WHEEL...........................................................................204 REMOVAL..............................................................................204 INSTALLATION.........................................................................204 FINAL DRIVE..............................................................................205 REMOVAL..............................................................................205 INSTALLATION.........................................................................205 IDLER AND RECOIL SPRING..................................................................206 REMOVAL..............................................................................206 INSTALLATION.........................................................................206 SPRING RECOIL AND THRUST CYLINDER GROUPS.................................................207 DISASSEMBLY..........................................................................207 ASSEMBLY.............................................................................207 IDLER....................................................................................208 DISASSEMBLY..........................................................................208 ASSEMBLY.............................................................................208 TRACK ROLLERS............................................................................209 REMOVAL..............................................................................209 INSTALLATION.........................................................................209 BOOM CYLINDER............................................................................210 REMOVAL..............................................................................210 INSTALLATION.........................................................................211 ARM CYLINDER.............................................................................212 REMOVAL..............................................................................212 INSTALLATION.........................................................................212 BUCKET CYLINDER..........................................................................213 REMOVAL..............................................................................213 INSTALLATION.........................................................................213 BOOM SWING CYLINDER......................................................................214 REMOVAL..............................................................................214 INSTALLATION.........................................................................215 BLADE CYLINDER...........................................................................216 REMOVAL..............................................................................216 INSTALLATION.........................................................................216 WORK EQUIPMENT CYLINDERS.................................................................217 DISASSEMBLY..........................................................................217 ASSEMBLY.............................................................................219 UPPER WORK EQUIPMENT.....................................................................223 REMOVAL..............................................................................223 INSTALLATION.........................................................................224 ARM......................................................................................225 REMOVAL..............................................................................225 INSTALLATION.........................................................................226 ARM ASSEMBLY.............................................................................227 REMOVAL..............................................................................227 INSTALLATION.........................................................................227 BOOM.....................................................................................228 REMOVAL..............................................................................228 INSTALLATION.........................................................................229 BOOM SWING SUPPORT.......................................................................230 REMOVAL..............................................................................230 INSTALLATION.........................................................................230 BLADE....................................................................................231 REMOVAL..............................................................................231 INSTALLATION.........................................................................231 40. STANDARD MAINTENANCE.....................................................................235 SWING CIRCLE.............................................................................236 SWING MACHINERY..........................................................................237 FINAL DRIVE..............................................................................238 SPROCKET.................................................................................239 TRACK FRAME AND RECOIL SPRING............................................................240 IDLER....................................................................................241 CARRIER ROLLER...........................................................................242 TRACK ROLLER.............................................................................243 TRACK SHOE...............................................................................244 HYDRAULIC PUMP...........................................................................246 CONTROL VALVE............................................................................247 SWIVEL JOINT.............................................................................253 SWING MOTOR..............................................................................254 TRAVEL MOTOR.............................................................................256 PPC VALVE (FOR BOOM, ARM, BUCKET, SWING).................................................258 PPC VALVE (FOR HAMMER)...................................................................259 CYLINDER.................................................................................260 WORK EQUIPMENT...........................................................................262
PLEASE NOTE:
⦁ This is not a physical manual but a digital manual – meaning no physical copy will be couriered to you. The manual can be yours in the next 2 mins as once you make the payment, you will be directed to the download page IMMEDIATELY.
⦁ This is the same manual used by the dealers inorder to diagnose your vehicle of its faults.
⦁ Require some other service manual or have any queries: please WRITE to us at [email protected]
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