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Related Manuals for Komatsu ecot3 PC228US-8
Summary of Contents for Komatsu ecot3 PC228US-8
- Page 1 SEN05331-05 HYDRAULIC PC228US EXCAVATOR PC228USLC 50001 SERIAL NUMBERS and up...
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- Page 3 Notice of revision Notice of revision 5th revision 2017/02 The affected pages are indicated by the use of the Mark Indication Action required following marks. It is requested that necessary ac- tions must be taken to these pages according to the Page to be newly added list below.
- Page 4 Notice of revision Revision Revision Revision Revision Mark Page Mark Page Mark Page Mark Page number number number number 10-81 10-133 10-185 30-3 (01) 10-82 10-134 10-186 30-4 (02) 10-83 10-135 10-187 30-5 (01) 10-84 10-136 10-188 30-6 (01) 10-85 10-137 10-189 30-6-1...
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- Page 6 Notice of revision Revision Revision Revision Revision Mark Page Mark Page Mark Page Mark Page number number number number 40-125 (01) 40-177 (01) 40-229 (01) 40-281 (01) 40-126 (01) 40-178 (01) 40-230 (01) 40-282 (01) 40-127 (01) 40-179 (01) 40-231 (01) 40-283 (01)
- Page 7 Notice of revision Revision Revision Revision Revision Mark Page Mark Page Mark Page Mark Page number number number number 40-333 (01) 40-379 (01) 40-425 (01) 50-25 (02) 40-334 (01) 40-380 (01) 40-426 (01) 50-26 (02) 40-335 (01) 40-381 (01) 40-427 (01) 50-27 (02)
- Page 8 Notice of revision Revision Revision Revision Revision Mark Page Mark Page Mark Page Mark Page number number number number 50-71 (02) 50-117 (02) 50-157 (02) 60-21 50-72 (02) 50-118 (02) 50-158 (02) 60-22 50-73 (02) 50-119 (02) 50-159 (02) 60-23 50-74 (02) 50-120...
- Page 9 Notice of revision Revision Revision Revision Revision Mark Page Mark Page Mark Page Mark Page number number number number 60-67 80-48 (01) 90-19 60-68 80-49 (01) 90-20 60-69 80-50 (01) 90-21 60-70 80-51 (01) 90-22 80-1 (01) 80-52 (01) 90-23 80-2 (01) 80-53...
- Page 10 Notice of revision PC228US-8,PC228USLC-8 (03) (02) Find manuals at https://best-manuals.com...
- Page 11 0 0 - 1 PC228US-8,PC228USLC-8 HYDRAULIC EXCAVATOR Shop Manual 0 0 - 1 PC228US-8 PC228USLC-8 Machine model Serial number PC228US-8 50001 and up PC228USLC-8 50001 and up 00 Index and foreword 0 0 - 1 PC228US-8,PC228USLC-8 00-1...
- Page 12 Table of Contents Table of Contents 0 0 - 2 Notice of revision ........................00 Index and Foreword Table of contents ........................00 - 2 Table of contents ......................... 00 - 2 Foreword and general information ..................00- Safety notice ........................00- How to read the shop manual ....................
- Page 13 Table of Contents Center swivel joint........................ 10- 148 Accumulator......................... 10- 149 Work equipment........................10- 152 Work equipment........................10- 152 Electrical system ........................10- 154 Electronic control system..................... 10- 154 Machine monitor system...................... 10- 192 KOMTRAX system....................... 10- 208 Sensors..........................10- 210 20 Standard value table Standard value table .......................
- Page 14 Table of Contents Cab and its attachments ......................30- 62 Checking cab tipping stopper....................30- 62 Adjusting mirrors ........................30- 63 Angle adjustment of rear view camera................. 30- 65 Electrical system ........................30- 67 Speial function of machine monitor (EMMS)................ 30- 67 Handling voltage circuit of engine controller ................
- Page 15 Table of Contents Failure code [CA271] IMV/PCV1 Short Error............... 40- 144 Failure code [CA272] IMV/PCV1 Open Error ..............40- 146 Failure code [CA322] Inj #1(L#1) Open/Short Error ............40- 148 Failure code [CA323] Inj #5 (L#5) Open/Short Error ............40- 150 Failure code [CA324] Inj #3(L#3) Open/Short Error ............
- Page 16 Table of Contents Failure code [DHSFMA] Travel FW L PPC Press Sensor Abnormality ....... 40- 248 Failure code [DHSGMA] Travel FW R PPC Press Sensor Abnormality ......40- 250 Failure code [DHSHMA] Travel BW L PPC Press Sensor Abnormality....... 40- 252 Failure code [DHSJMA] Travel BW R PPC Press Sensor Abnormality .......
- Page 17 Table of Contents E-10 Displays on machine monitor are different from those for actual machine ....40- 361 E-11 Some areas of machine monitor screen are not displayed ......... 40- 361 E-12 Function switch does not operate ................40- 361 E-13 Automatic warm-up system does not operate (in cold season) ........
- Page 18 Table of Contents H-23 Swing acceleration is poor or swing speed is low ............40- 418 H-24 Upper structure overruns excessively when it stops swinging ........40- 420 H-25 Shock is large when upper structure stops swinging ..........40- 421 H-26 Large unusual noise is heard when upper structure stops swinging......
- Page 19 Table of Contents Disassembly and assembly of idler cushion assembly ............50- 92 Disassembly and assembly of track roller assembly ............50- 94 Disassembly and assembly of carrier roller assembly ............50- 96 Removal and installation of revolving frame assembly............50- 99 Removal and installation of counterweight assembly ............
- Page 20 Table of Contents Main pump ........................... 60- 26 Control valve ........................60- 29 Swing motor ......................... 60- 39 Travel motor......................... 60- 41 PPC valve ..........................60- 45 Solenoid valve........................60- 53 Attachment circuit selector valve ..................60- 55 Anti-drop valve ........................60- 58 Center swivel joint........................
- Page 21 Table of Contents Desiccant replacement procedure ..................80- 76 90 Diagrams and drawings Hydraulic circuit diagram ......................90- Symbols used in hydraulic circuit diagrams ................. 90- Hydraulic circuit diagram (1/4) ..................... 90- Hydraulic circuit diagram (2/4) ..................... 90- Hydraulic circuit diagram (3/4) ..................... 90- Hydraulic circuit diagram (4/4) .....................
- Page 22 Appropriate servicing and repair are extremely important to ensure safe operation of the machine. The shop manuals describe the effective and safe servicing and repair methods recommended by Ko- matsu. Some of the servicing and repair methods require use of special tools designed by Komatsu for special purposes.
- Page 23 Foreword and general information Safety notice 2. Preparation work 6) When removing a cover which is under 1) Before adding oil or making any repairs, park internal pressure or under pressure by a the machine on a hard and level ground, and spring, always leave two bolts in diagonal apply the parking brake and chock the positions.
- Page 24 Foreword and general information Safety notice 4. Precautions for slinging work and making signals 1) Only one appointed worker must make signals and co-workers must communicate with each other frequently. The appointed signaler must make specified signals clearly at a place where he is well seen from the operator's seat and where he can see the working condition easily.
- Page 25 Foreword and general information Safety notice If the load is unstable or the wire rope or 13)If the hoist stops because of a power failure, chains are twisted, lower the load and lift turn the power switch OFF. When turning on it up again.
- Page 26 Foreword and general information Safety notice a For tightening torque, see the precau- 8. Precautions disconnecting connecting hoses and tubes in an air condi- tions for installation in each section of tioner circuit "Disassembly and assembly". 1) Disconnection Although the refrigerant (refrigerant gas: R134a) used on the machine's air conditioner is less destructive to the ozone layer for environmentally friend-...
- Page 27 (Rev. 2010/03) Some attachments and optional parts in this shop manual may not be delivered to certain areas. If one of them is required, consult KOMATSU distributors. Materials and specifications are subject to change without notice. Shop manuals are divided into the "Chassis volume" and "Engine volume". For the engine unit, see the engine vol- ume of the engine model mounted on the machine.
- Page 28 Foreword and general information How to read the shop manual 2. Revision and distribution Any additions, revisions, or other change of notices will be sent to KOMATSU distributors. Get the most up-to-date information before you start any work. 3. Filing method File the revised or added pages in the correct order of the page numbers printed in the LIST OF REVISED PAGES.
- Page 29 Foreword and general information Explanation of terms for maintenance standard Explanation of terms for maintenance standard 0 0 - 1 1 (Rev. 2010/03) The maintenance standard chapter explains the criteria for replacing or reusing products and parts in the ma- chine maintenance work.
- Page 30 Foreword and general information Explanation of terms for maintenance standard 4. Repair limit and allowable value or allowable dimension The dimension of a part changes because of wear and deformation while it is used. The limit of changed dimension is called the "re- pair limit".
- Page 31 Foreword and general information Handling of hydraulic components Handling of hydraulic components 0 0 - 1 3 (Rev. 2010/03) With the increase in pressure and precision of hydraulic equipment, the most common cause of failure is dirt (foreign material) in the hydraulic circuit. Therefore, special precaution is required when adding hydraulic oil, or when disassembling or assembling hydraulic components.
- Page 32 Foreword and general information Handling of hydraulic components 5. Replacing hydraulic oil while its temperature is high When hydraulic oil or other oil is warm, it flows easily. In addition, the sludge can also be drained out easily from the circuit together with the oil, so it is best to change the oil when it is still warm.
- Page 33 Foreword and general information Method of disconnecting and connecting push-pull type coupler Method of disconnecting and connecting push-pull type coupler 0 0 - 1 5 (Rev. 2010/03) Before performing the following work, loosen the oil filler cap of the hydraulic tank gradually to release the remaining pressure in the hydraulic tank.
- Page 34 Foreword and general information Method of disconnecting and connecting push-pull type coupler Type 2 0 0 - 1 6 1. Disconnection 1) Hold the tightening portion and push body (7) straight until sliding prevention ring (6) contacts contact surface (a) of the hexagonal portion at the male end.
- Page 35 Foreword and general information Method of disconnecting and connecting push-pull type coupler Type 3 0 0 - 1 7 1. Disconnection 1) Hold the tightening portion and push body (9) straight until sliding prevention ring (8) contacts contact surface (b) of the hexagonal portion at the male end.
- Page 36 Foreword and general information Handling of electric equipment Handling of electric equipment 0 0 - 1 8 (Rev. 2010/03) To maintain the performance of the machine over a long period, and to prevent failures or other troubles be- fore they occur, correct "operation", "maintenance and inspection", "troubleshooting", and "repairs" must be performed.
- Page 37 Foreword and general information Handling of electric equipment 3) Disconnections in wiring If the harness is pulled to disconnect the connector, or components are lifted with a crane with the harness still connected, or a heavy object hits the harness, the crimping of the connector may separate, or the soldering may be damaged, or the harness may be broken.
- Page 38 Foreword and general information Handling of electric equipment 3. Removing, installing, and drying connectors and wiring harnesses 1) Disconnecting connectors 1] Hold the connectors when disconnecting. When disconnecting the connectors, hold the connectors. For connectors held by a screw, loosen the screw fully, then hold the male and female connectors in each hand and pull apart.
- Page 39 Foreword and general information Handling of electric equipment 2) Connecting connectors 1] Check the connector visually. Check that no oil, dirt, or water is stuck to connector pins (joint portion). Check that connector pins are free from deformation, defective contact, corrosion, or damage.
- Page 40 Foreword and general information Handling of electric equipment 3) Deutsch connector (DT 8-pin, 12-pin) Disconnection (Left of figure) Disconnection Connection (Example of While pressing locks (a) and (b), pull out the incomplete setting of (a)) female connector (2). Connection (Right of figure) 1] Push in female connector (2) horizontally until the lock clicks.
- Page 41 Foreword and general information Handling of electric equipment 4) Drying wiring harness If there is any oil or dirt on the wiring harness, wipe it off with a dry cloth. Avoid washing it in water or using steam. If the connector must be washed in water, do not use high-pres- sure water or steam directly on the wiring harness.
- Page 42 Foreword and general information Handling of electric equipment 4. Handling of connectors used on engine a Mainly, following engines are object for following connectors. 95E-5 107E-1 114E-3 125E-5 140E-5 170E-5 12V140E-3 1) Slide, lock type (FRAMATOME-3, FRAM- Examples) ATOME-2) Intake air temperature sensor in 95/107/114/125/140/170/12V140 Series intake manifold: TIM Various pressure sensors and NE...
- Page 43 Foreword and general information Handling of electric equipment 3) Push lock type (1) While pressing up lock (C) of the connector 95/107/114 series with flat-head screwdriver [1], pull out Example) Fuel pressure sensor connector (3) in the direction of the arrow. common rail (BOSCH-03) Disconnection While pressing lock (C), pull out connector...
- Page 44 Foreword and general information Handling of electric equipment 5) Push lock type (3) Example) Intake air pressure sensor in 95/125/140/170/12V140 series intake manifold. (CANNON-04): PIM, etc. Disconnection While pressing lock (E) of the connector, pull out connector (5) in the direction of the arrow. Disconnection Example) Fuel pressure sensor in common 1] Turn housing (H1) in the direction of the...
- Page 45 Foreword and general information Handling of electric equipment 5. Handling controller 1) The controller contains a microcomputer and electronic control circuits. These control all of the electronic circuits on the machine, so be extremely careful when handling controller. 2) Do not place objects on top of the controller. 3) Cover the control connectors with tape or a vinyl bag.
- Page 46 Foreword and general information How to read electric wire code How to read electric wire code 0 0 - 2 8 (Rev. 2010/03) In the electric circuit diagram, the material, thickness, and color of each electric wire are indicated by symbols. The electric wire code is helpful in understanding the electric circuit diagram.
- Page 47 Foreword and general information How to read electric wire code Dimensions (Table 2) Nominal No. 0.5f (0.5) 0.75f (0.85) 1.25f (1.25) Number of 20/0.18 7/0.32 30/0.18 11/0.32 50/0.18 16/0.32 37/0.26 26/0.32 58/0.26 41/0.32 65/0.32 strands/Diame- ter of strand Conduc- Sectional area 0.51 0.56 0.76...
- Page 48 Foreword and general information How to read electric wire code Color codes table (Table 3) Color Code Color of wire Color Code Color of wire Black Light green & White Brown Light green & Yellow Brown & Black Blue & Red Brown &...
- Page 49 Foreword and general information Precautions when performing work Precautions when performing work 0 0 - 3 1 (Rev. 2010/03) When removing, installing, disassembling or assembling a unit, be sure to follow the general precautions giv- en below. 1. Precautions for removal work If the coolant contains antifreeze, dispose of it correctly as chemicals.
- Page 50 Foreword and general information Precautions when performing work 2. Precautions for installation work Tighten all of the bolts and nuts (sleeve nuts) to the specified torque (KES). Install the hoses without twisting or interference and fix them with intermediate clamps, if available. Replace all of the gaskets, O-rings, cotter pins, and lock plates with new parts.
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