KOMATSU PC15R-8 HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (SNF21803 & UP) KOMATSU PC15R-8
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KOMATSU PC15R-8 HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (SNF21803 & UP) KOMATSU PC15R-8
MAIN MENU.................................................................................... 0 COVER........................................................................................ 1 FOREWARD..................................................................................... 6 HOW TO READ THE SHOP MANUAL.............................................................. 9 HOISTING INSTRUCTIONS.................................................................... 10 STANDARD TIGHTENING TORQUE............................................................... 11 COATING MATERIALS........................................................................ 13 WEIGHT TABLE............................................................................. 15 TABLE OF OIL AND COOLANT QUANTIES........................................................ 16 CONTENTS..................................................................................... 2 10 STRUCTURE AND FUNCTION.................................................................... 19 POWER TRAIN.............................................................................. 20 SWING CIRCLE............................................................................. 21 SWING MOTOR.............................................................................. 22 FINAL DRIVE.............................................................................. 23 TRACK FRAME AND RECOIL SPRING............................................................ 24 CARRIER ROLLER........................................................................... 26 STEEL SHOE............................................................................... 27 HYDRAULIC SYSTEM......................................................................... 28 HYDRAULIC CIRCUIT DIAGRAM................................................................ 29 HYDRAULIC PUMP........................................................................... 31 CONTROL VALVE............................................................................ 35 CLSS..................................................................................... 43 SWIVEL JOINT............................................................................. 60 TRAVEL MOTOR............................................................................. 61 CYLINDERS................................................................................ 63 VALVE CONTROL............................................................................ 66 ACCUMULATOR.............................................................................. 67 PPC VALVE................................................................................ 68 SOLENOID VALVE .......................................................................... 73 CUTTING SHOVEL CONTROL VALVE............................................................. 74 ELECTRICAL CIRCUIT DIAGRAM............................................................... 75 20 TESTING AND ADJUSTING..................................................................... 79 NORMAL OR STANDARD TECHNICAL DATA........................................................ 80 SPECIAL TOOLS............................................................................ 91 CHECKING THE ENGINE SPEED................................................................ 92 ADJUSTMENT OF VALVE CLEARANCE............................................................ 93 MEASUREMENT OF THE COMPRESSOR PRESSURE................................................... 94 CONTROL AND ADJUSTMENT OF THE TENSION OF THE FAN BELT.................................... 95 CONTROL AND ADJUSTMENT OF THE INJECTION TIMING........................................... 96 CONTROL AND ADJUSTMENT OF THE ACCELERATOR STROKE ........................................ 98 ADJUSTMENTOF THE STROKE OF THE BLADE COMMAND LEVER....................................... 99 CONTROL AND ADJUSTMENT OF THE STROKE OF THE TRAVEL LEVER.................................100 CENTERING ADJUSTMENT OF THE BOOM SWING COMMAND PEDAL.....................................101 ADJUSTMENT OF THE PPC VALVE CLEARANCES...................................................102 ADJUSTMENT OF THE RUBBER PAD AND SAFETY MICROSWITCH FOR SERVO-CONTROL ENGAGEMENT.........103 CONTROL AND ADJUSTMENTOF THE STROKE OF THE TRACK-SHOE TENSION............................104 CONTROL AND REGULATION OF THE PREEURES IN THE HYDRAULIC CIRCUTIS.........................105 CONTROL AND REGULATION OF THE LS DIFFERENTIAL PRESSURE AND ADJUSTMENT OF THE LS VALVE....108 REGULATION OF THE PC VALVE...............................................................110 CONTROL AND REGULATION O THE SERVO-CONTROL POWER SUPPLY..................................111 ELIMINATION OF RESIDUAL PRESSURES - PRESSURISATION OF THE TANK...........................112 BLEEDING AIR FROM THE HYDRAULIC CIRCUITS.................................................113 CONTROL OF HYDRAULIC DRIFTS - ANALYSIS OF THE CAUSES OF A DRIFT..........................115 CHECKING FOR ANY LEAKAGES INSIDE THE WORKING EQUIPMENT CYLINDERS.........................121 CHECKING FOR ANY LEAKAGES INSIDE THE SWING MOTOR.........................................122 METHODS FOR TESTING FOR LEAKAGES INSIDE THE SWIVEL JOINT.................................123 30 REMOVAL AND INSTALLATION..................................................................128 HOW TO READ THE MANUAL...................................................................130 PRECAUTIONS TO BE TAKEN WHILE WORKING....................................................131 SPECIAL TOOLS............................................................................132 STARTER MOTOR............................................................................134 REMOVAL..............................................................................134 INSTALLATION.........................................................................134 ALTERNATOR...............................................................................135 REMOVAL..............................................................................135 INSTALLATION.........................................................................135 PUMP GROUP...............................................................................136 REMOVAL..............................................................................136 INSTALLATION.........................................................................136 INJECTION NOZZLES........................................................................137 REMOVAL..............................................................................137 INSTALLATION.........................................................................137 CYLINDER HEAD............................................................................138 REMOVAL..............................................................................138 INSTALLATION.........................................................................141 OIL COOLER...............................................................................142 REMOVAL .............................................................................142 INSTALLATION.........................................................................142 RADIATOR.................................................................................143 REMOVAL..............................................................................143 INSTALLATION.........................................................................143 ENGINE HOOD..............................................................................144 REMOVAL..............................................................................144 INSTALLATION.........................................................................144 CAB AND CANOPY...........................................................................145 REMOVAL..............................................................................145 INSTALLATION.........................................................................146 HEATING FAN..............................................................................147 REMOVAL..............................................................................147 INSTALLATION.........................................................................147 REAR COUNTERWEIGHT.......................................................................148 REMOVAL..............................................................................148 INSTALLATION.........................................................................148 TOP COVER AND SIDE PANELS................................................................149 REMOVAL..............................................................................149 INSTALLATION.........................................................................150 HYDRAULIC OIL TANK.......................................................................151 REMOVAL..............................................................................151 INSTALLATION.........................................................................152 FUEL TANK................................................................................154 REMOVAL..............................................................................154 INSTALLATION.........................................................................154 ENGINE-PUMP GROUP........................................................................155 REMOVAL..............................................................................155 INSTALLATION.........................................................................157 PUMP.....................................................................................158 REMOVAL..............................................................................158 INSTALLATION.........................................................................158 ENGINE-PUMP COUPLING.....................................................................159 REMOVAL..............................................................................159 INSTALLATION.........................................................................159 CONTROL VALVE............................................................................160 REMOVAL..............................................................................160 INSTALLATION.........................................................................161 RIGHT-HAND PPC VALVE.....................................................................162 REMOVAL..............................................................................162 INSTALLATION.........................................................................162 LEFT-HAND PPC VALVE......................................................................163 REMOVAL..............................................................................163 INSTALLATION.........................................................................163 SERVOCONTROL SOLENNIOD GROUP (PC-12R)....................................................164 REMOVAL..............................................................................164 INSTALLATION.........................................................................164 SERVOCONTROL SOLENNIOD GROUP (PC12R WITH TRAVEL INCREMENT - PC15R).......................164 REMOVAL..............................................................................164 INSTALLATION.........................................................................164 SWIVEL JOINT.............................................................................165 REMOVAL..............................................................................165 INSTALLATION.........................................................................165 SWING MOTOR..............................................................................166 REMOVAL..............................................................................166 INSTALLATION.........................................................................166 REVOLVING FRAME..........................................................................167 REMOVAL..............................................................................167 INSTALLATION.........................................................................168 SWING CIRCLE.............................................................................169 REMOVAL..............................................................................169 INSTALLATION.........................................................................169 TRAVEL MOTOR.............................................................................170 REMOVAL..............................................................................170 INSTALLATION.........................................................................170 RUBBER TRACK-SHOES.......................................................................171 REMOVAL..............................................................................171 INSTALLATION.........................................................................171 TRACK-SHOES..............................................................................172 REMOVAL..............................................................................172 INSTALLATION.........................................................................172 SPROCKET WHEEL...........................................................................173 REMOVAL..............................................................................173 INSTALLATION.........................................................................173 COMPLETE FINAL DRIVE.....................................................................174 REMOVAL..............................................................................174 INSTALLATION.........................................................................174 FINAL DRIVE..............................................................................175 DISASSEMBLY..........................................................................175 ASSEMBLY.............................................................................180 IDLER AND RECOIL SPRING ASSEMBLY.........................................................185 REMOVAL..............................................................................185 INSTALLATION.........................................................................185 IDLER....................................................................................186 DISASSEMBLY..........................................................................186 ASSEMBLY.............................................................................186 SPRING RECOIL AND THRUST CYLINDER GROUPS.................................................187 DISASSEMBLY..........................................................................187 ASSEMBLY.............................................................................187 TRACK ROLLERS............................................................................188 REMOVAL .............................................................................188 INSTALLATION.........................................................................188 BOOM CYCLINDER...........................................................................189 REMOVAL..............................................................................189 INSTALLATION.........................................................................189 ARM CYLINDER.............................................................................190 REMOVAL..............................................................................190 INSTALLATION.........................................................................190 BUCKET CYLINDER..........................................................................191 REMOVAL..............................................................................191 INSTALLATION.........................................................................191 BOOM SWING CYLINDER......................................................................192 REMOVAL..............................................................................192 INSTALLATION.........................................................................192 BLADE CYLINDER...........................................................................193 REMOVAL..............................................................................193 INSTALLATION.........................................................................193 WORKING EQUIPMENT CYLINDERS..............................................................194 DISASSEMBLY..........................................................................194 ASSEMBLY.............................................................................196 UPPER WORKING EQUIPMENT..................................................................200 REMOVAL..............................................................................200 INSTALLATION.........................................................................201 ARM......................................................................................202 REMOVAL..............................................................................202 INSTALLATION.........................................................................203 BOOM.....................................................................................204 REMOVAL..............................................................................204 INSTALLATION.........................................................................205 BOOM SWING SUPPORT.......................................................................206 REMOVAL..............................................................................206 INSTALLATION.........................................................................206 BLADE....................................................................................207 REMOVAL..............................................................................207 NSTALLATION..........................................................................207 40 MAINTENANCE STANDARD......................................................................209 SWING CIRCLE.............................................................................210 TRACK FRAME AND RECOIL SPRING............................................................211 ILDER....................................................................................212 FINAL DRIVE..............................................................................213 SPROCKET.................................................................................214 TRACK ROLLER.............................................................................215 TRACK SHOE...............................................................................216 HYDRAULIC PUMP...........................................................................218 CONTROL VALVE............................................................................219 SWIVEL JOINT.............................................................................225 SWING MOTOR..............................................................................226 TRAVEL MOTOR.............................................................................227 PPC VALVE................................................................................229 CYLINDERS................................................................................232 WORK EQUIPMENT...........................................................................234
DESCRIPTION:
KOMATSU PC15R-8 HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (SNF21803 & UP) KOMATSU PC15R-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 adjustments 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.
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