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KOMATSU 6D140-1 SERIES DIESEL ENGINE SERVICE REPAIR MANUAL (SEBE62120112) KOMATSU 6D140 1 – PDF DOWNLOAD
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- KOMATSU 6D140-1 SERIES DIESEL ENGINE SERVICE REPAIR MANUAL
- PUBLICATION NUMBER:SEBE62120112
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Description
KOMATSU 6D140-1 SERIES DIESEL ENGINE SERVICE REPAIR MANUAL (SEBE62120112) KOMATSU 6D140 1
KOMATSU 6D140-1 SERIES DIESEL ENGINE SERVICE REPAIR MANUAL (SEBE62120112) KOMATSU 6D140 1 – PDF DOWNLOAD:
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DESCRIPTION:
KOMATSU 6D140-1 SERIES DIESEL ENGINE SERVICE REPAIR MANUAL (SEBE62120112) KOMATSU 6D140 1
- 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. - 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” 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 6D140-1 SERIES DIESEL ENGINE SERVICE REPAIR MANUAL (SEBE62120112) KOMATSU 6D140 1
MAIN MENU.................................................................................. 0 COVER...................................................................................... 1 CONTENTS................................................................................... 2 SAFETY..................................................................................... 6 SAFETY NOTICE.......................................................................... 6 01 GENERAL................................................................................. 24 GENERAL VIEW .......................................................................... 25 SPECIFICATIONS ........................................................................ 27 GENERAL ASSEMBLY DRAWING .............................................................. 37 ENGINE PERFORMANCE CURVE .............................................................. 49 WEIGHT TABLE .......................................................................... 67 11 STRUCTURE AND FUNCTION.................................................................. 68 GENERAL STRUCTURE...................................................................... 69 INTAKE AND EXHAUST SYSTEM ............................................................. 71 INTAKE AND EXHAUST SYSTEM.......................................................... 71 AIR CLEANER ....................................................................... 73 TURBOCHARGER ...................................................................... 76 AFTER-COOLER ...................................................................... 78 ENGINE BODY............................................................................ 79 CYLINDER HEAD ..................................................................... 79 VALVE SYSTEM ...................................................................... 83 CYLINDER BLOCK .................................................................... 87 MAIN CIRCULATION SYSTEM ........................................................... 89 TIMING GEAR ....................................................................... 91 FLYWHEEL AND FLYWHEEL HOUSING ..................................................... 93 LUBRICATION SYSTEM..................................................................... 95 LUBRICATION SYSTEM CHART .......................................................... 95 OIL PUMP .......................................................................... 98 REGULATOR VALVE AND PISTON COOLING VALVE .......................................... 99 OIL FILTER ........................................................................101 OIL COOLER ........................................................................104 FUEL SYSTEM............................................................................106 FUEL SYSTEM CHART .................................................................106 FUEL INJECTION PUMP ...............................................................107 FUEL INJECTION NOZZLE ............................................................111 BOOST COMPENSATOR DEVICE ..........................................................112 FUEL FILTER .......................................................................114 FUEL SOLENOID .....................................................................115 ENGINE STOP MOTOR .................................................................117 COOLING SYSTEM.........................................................................123 COOLING SYSTEM CHART ..............................................................123 WATER PUMP ........................................................................124 THERMOSTAT ........................................................................127 CORROSION RESISTOR ................................................................129 ELECTRICAL SYSTEM......................................................................131 ALTERNATOR MOUNTING ...............................................................131 ALTERNATOR ........................................................................132 STARTING MOTOR ....................................................................135 ELECTRICAL INTAKE AIR HEATER ......................................................136 ACCESSORY..............................................................................137 AIR COMPRESSOR ....................................................................137 EXHAUST BRAKE......................................................................139 EXHAUST BRAKE BUTTERFLY VALVE .....................................................140 12 TESTING AND ADJUSTING...................................................................142 ENGINE BODY............................................................................143 ADJUSTING VALVE CLEARANCE .........................................................143 MEASURING COMPRESSION PRESSURE ....................................................144 FUEL SYSTEM............................................................................145 CHECKING AND ADJUSTING FUEL INJECTION TIMING ....................................145 ADJUSTING FUEL INJECTION PRESSURE .................................................147 ADJUSTING FUEL CUT SOLENOID .......................................................148 COOLING SYSTEM.........................................................................152 CHECKING AND ADJUSTING V-BELT TENSION ............................................152 FUEL INJECTION PUMP CALIBRATION DATA ..................................................154 PERFORMANCE TEST.......................................................................213 RUN-IN STANDARD....................................................................213 PERFORMANCE TEST CRITERIA .........................................................217 TESTING AND ADJUSTING TOOL LIST ...................................................223 TESTING AND ADJUSTING DATA ........................................................225 TROUBLESHOOTING .......................................................................235 POINTS TO REMEMBER WHEN TROUBLESHOOTING............................................237 METHOD OF USING TROUBLESHOOTING CHART..............................................238 TROUBLESHOOTING TABLE .............................................................242 S-1 Starting performance is poor (Starting always takes time) .....................242 S-2 Engine does not start .........................................................243 1. Engine does not turn .......................................................243 2. Engine turns but no exhaust gas comes out (Fuel is not being injected)......244 3. Exhaust gas comes out but engine does not start (Fuel is being injected)....245 S-3 Engine does not pick up smoothly (Follow-up is poor) ..........................246 S-4 Engine stops during operations ................................................247 S-5 Engine does not rotate smoothly (hunting) .....................................248 S-6 Engine lacks output (no power) ................................................249 S-7 Exhaust gas is black (incomplete combustion) ..................................250 S-8 Oil consumption is excessive (or exhaust gas is blue)..........................251 S-9 Oil becomes contaminated quickly ..............................................252 S-10 Fuel consumption is excessive ................................................253 S-11 Oil is in cooling water, or water spurts back, or water level goes down ......254 S-12 Oil pressure lamp lights up (drop in oil pressure) ...........................255 S-13 Oil level rises...............................................................256 S-14 Water temperature becomes too high (overheating) .............................257 S-15 Abnormal noise is made .......................................................258 S-16 Vibration is excessive .......................................................259 13 DISASSEMBLY AND ASSEMBLY................................................................261 GENERAL ...............................................................................262 DISASSEMBLY........................................................................262 ASSEMBLY ..........................................................................282 TURBOCHARGER ..........................................................................314 DISASSEMBLY........................................................................314 ASSEMBLY...........................................................................318 EXHAUST BRAKE .........................................................................322 DISASSEMBLY AND ASSEMBLY...........................................................322 14 MAINTENANCE STANDARD....................................................................327 INTAKE AND EXHAUST SYSTEM..............................................................328 TURBOCHARGER ......................................................................328 ENGINE BODY............................................................................331 CYLINDER HEAD .....................................................................331 VALVE, VALVE SPRING AND VALVE GUIDE ...............................................332 ROCKER ARM AND SHAFT ..............................................................334 CROSSHEAD AND GUIDE ...............................................................335 CYLINDER BLOCK ....................................................................336 CYLINDER LINER ....................................................................337 CRANKSHAFT ........................................................................338 CAMSHAFT...........................................................................339 CAM FOLLOWER AND PUSH ROD .........................................................340 CONNECTING ROD ....................................................................341 PISTON, PISTON RING AND PISTON PIN ................................................342 TIMING GEAR .......................................................................344 FLYWHEEL AND FLYWHEEL HOUSING .....................................................346 LUBRICATION SYSTEM.....................................................................348 OIL PUMP AND MAIN RELIEF VALVE ....................................................348 REGULATOR VALVE AND SAFETY VALVE ..................................................350 OIL COOLER ........................................................................351 COOLING SYSTEM.........................................................................353 WATER PUMP ........................................................................353 THERMOSTAT ........................................................................355 15 REPAIR AND REPLACEMENT OF PARTS.........................................................357 CYLINDER HEAD..........................................................................358 GRINDING CYLINDER HEAD MOUNTING FACE ..............................................358 REPLACING VALVE SEAT INSERT .......................................................360 REPLACING CROSSHEAD GUIDE .........................................................365 REPLACING VALVE GUIDE .............................................................366 GRINDING VALVE ....................................................................367 PRESSURE TEST .....................................................................368 CYLINDER BLOCK.........................................................................369 REPLACING CAM BUSHING .............................................................369 REPLACING CRANKSHAFT GEAR .........................................................371 REPLACING CAM GEAR ................................................................372 REPLACING FLYWHEEL RING GEAR ......................................................373 REPLACING CONNECTING ROD SMALL BUSHING ...........................................374
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]
