Komatsu WA320-5H Wheel Loader Shop Manual (H50051 and up) – PDF DOWNLOAD
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Komatsu WA320-5H Wheel Loader Shop Manual (H50051 and up)
MACHINE MODEL
WA320-5H
SERIAL NUMBER
H50051 and up
Description
Komatsu WA320-5H Wheel Loader Shop Manual (H50051 and up)
FILE DETAILS:
Komatsu WA320-5H Wheel Loader Shop Manual (H50051 and up)
File Format : PDF
Language : English
Bookmarked : Yes
Searchable : Yes
Printable : Yes
Product Code : VEBM240100
Total Pages : 972
DESCRIPTION:
Komatsu WA320-5H Wheel Loader Shop Manual (H50051 and up)
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.
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 eachr component, as well as precautions to be taken for these operations.
MAINTENANCE STANDARD:
This section gives the judgement standards when inspecting disassembled parts.
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 WA320-5H Wheel Loader Shop Manual (H50051 and up)
SAFETY............................................................................................ 3 SAFETY NOTICE................................................................................. 3 IMPORTANT SAFETY NOTICE................................................................... 3 GENERAL PRECAUTIONS....................................................................... 3 PREPARATIONS FOR WORK..................................................................... 3 PRECAUTIONS DURING WORK................................................................... 4 FOREWORD.......................................................................................... 5 GENERAL....................................................................................... 5 STRUCTURE AND FUNCTION.................................................................... 5 TESTING AND ADJUSTING..................................................................... 5 DISASSEMBLY AND ASSEMBLY.................................................................. 5 MAINTENANCE STANDARD...................................................................... 5 OTHERS.................................................................................... 5 HOW TO READ THE SHOP MANUAL................................................................... 6 VOLUMES................................................................................... 6 DISTRIBUTION AND UPDATING................................................................. 6 FILING METHOD............................................................................. 6 REVISED EDITION MARK...................................................................... 6 REVISIONS................................................................................. 6 SYMBOLS................................................................................... 6 HOISTING INSTRUCTIONS......................................................................... 7 HOISTING.................................................................................. 7 WIRE ROPES................................................................................ 7 METHOD OF DISASSEMBLING, CONNECTING PUSH-PULL TYPE COUPLER.................................... 8 Disconnection............................................................................. 8 Connection................................................................................ 8 COATING MATERIALS............................................................................. 10 STANDARD TIGHTENING TORQUE.................................................................... 12 STANDARD TIGHTENING TORQUE TABLE (WHEN USING TORQUE WRENCH)............................... 12 TABLE OF TIGHTENING TORQUES FOR FLARED NUTS............................................... 12 TABLE OF TIGHTENING TORQUES FOR SPLIT FLANGE BOLTS........................................ 13 TABLE OF TIGHTENING TORQUES FOR O-RING BOSS PIPING JOINTS................................. 13 TABLE OF TIGHTENING TORQUES FOR O-RING BOSS PLUGS......................................... 13 TIGHTENING TORQUE FOR 102 ENGINE SERIES................................................... 14 Tightening torque table for hoses (taper seal type and face seal type).................... 14 ELECTRIC WIRE CODE............................................................................ 15 CLASSIFICATION BY THICKNESS............................................................... 15 CLASSIFICATION BY COLOR AND CODE.......................................................... 15 CONVERSION TABLE.............................................................................. 16 METHOD OF USING THE CONVERSION TABLE...................................................... 16 EXAMPLE................................................................................... 16 Millimeters to inches..................................................................... 16 Millimeters to Inches..................................................................... 17 Kilogram to Pound......................................................................... 17 Liter to U.S. Gallon...................................................................... 18 Liter to U.K. Gallon...................................................................... 18 kgm to ft. lb............................................................................. 19 kg/cm2 to lb/in2.......................................................................... 20 Temperature............................................................................... 21 UNITS......................................................................................... 22 Example:.................................................................................. 22 01 GENERAL........................................................................................ 23 GENERAL ASSEMBLY DRAWINGS..................................................................... 24 SPECIFICATIONS................................................................................ 25 WEIGHT TABLE.................................................................................. 29 PROPER SELECTION OF FUEL, COOLANT AND LUBRICANTS.............................................. 31 10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD................................................... 33 Engine mount and transfer mount............................................................... 34 Damper........................................................................................ 35 Outline................................................................................... 35 Cooling system................................................................................ 36 Specification............................................................................. 36 Power train................................................................................... 37 Power train system diagram.................................................................... 38 Outline................................................................................... 39 Drive shaft (propeller shaft)................................................................. 40 Outline................................................................................... 40 HST hydraulic piping diagram.................................................................. 41 HST pump...................................................................................... 42 Specifications............................................................................ 42 Operation................................................................................. 43 Flow of power............................................................................. 43 Flow of oil............................................................................... 43 High-pressure relief valve.................................................................... 44 Function.................................................................................. 44 Operation................................................................................. 45 Low-pressure relief valve..................................................................... 46 Function.................................................................................. 46 Operation................................................................................. 46 HST charge pump............................................................................... 47 Outline................................................................................... 47 Specifications............................................................................ 47 Function.................................................................................. 47 Speed-related valve (DA valve)................................................................ 48 Function.................................................................................. 48 Operation................................................................................. 48 High-pressure cut-off valve................................................................... 49 Function.................................................................................. 49 Operation................................................................................. 49 HST motor..................................................................................... 50 HST motor 1............................................................................... 50 Specifications............................................................................ 50 HST motor 2............................................................................... 51 Specifications............................................................................ 51 Principle................................................................................. 52 Structure................................................................................. 52 Operation................................................................................. 52 EP servo valve................................................................................ 53 Function.................................................................................. 53 Operation................................................................................. 53 HA servo valve................................................................................ 54 Function.................................................................................. 54 Operation................................................................................. 54 Forward-reverse shuttle valve................................................................. 55 Function.................................................................................. 55 Operation................................................................................. 55 Transfer...................................................................................... 56 Outline................................................................................... 56 Relationship between transfer clutch and transfer clutch pressure at each gear speed...... 56 Input shaft portion....................................................................... 58 Output shaft portion...................................................................... 60 Operation of clutch....................................................................... 64 When clutch is ON (fixed)................................................................. 64 When clutch is OFF (released)............................................................. 64 Low-speed mode............................................................................ 65 Operation................................................................................. 65 High-speed mode........................................................................... 66 Operation................................................................................. 66 Clutch solenoid valve......................................................................... 67 Operation................................................................................. 67 Axle.......................................................................................... 68 FRONT AXLE................................................................................ 68 REAR AXLE................................................................................. 69 Differential.................................................................................. 70 FRONT DIFFERENTIAL........................................................................ 70 REAR DIFFERENTIAL......................................................................... 72 Outline................................................................................... 74 When traveling in a straight line......................................................... 74 When turning.............................................................................. 74 Torque proportioning differential......................................................... 75 Outline............................................................................... 75 Operation............................................................................. 76 Straight travel (When the road resistances under both tires are the same)............. 76 Travel on soft ground (When the road resistances under both tires are different)...... 76 Limited-slip differential..................................................................... 78 FRONT..................................................................................... 78 Operation of limited-slip differential.................................................... 80 Brake torque generation mechanism of left and right side gears (5).................... 80 When traveling in a straight line..................................................... 80 When turning.......................................................................... 81 Final drive................................................................................... 82 Outline................................................................................... 83 Axle mounting and center hinge pin............................................................ 84 Outline................................................................................... 85 Steering piping............................................................................... 89 Steering column............................................................................... 90 Priority valve................................................................................ 91 Outline................................................................................... 92 Operation................................................................................. 92 Orbit-roll valve.............................................................................. 94 Outline................................................................................... 95 Structure................................................................................. 95 Operation................................................................................. 96 CONNECTION BETWEEN HAND PUMP AND SLEEVE...................................................100 Role of centering spring..................................................................101 Cushion valve.................................................................................102 Outline...................................................................................102 Function..................................................................................102 Steering cylinder.............................................................................103 Emergency steering piping.....................................................................105 Emergency steering valve......................................................................106 Operation.................................................................................107 When engine and steering pump are normal..................................................107 When engine or steering pump is abnormal..................................................108 Brake piping..................................................................................109 Brake valve...................................................................................110 Outline...................................................................................111 Operation.................................................................................111 When only either brake operates (When either brake fails).................................111 Inching valve.................................................................................114 Outline...................................................................................114 Charge valve..................................................................................116 Function..................................................................................117 Operation.................................................................................118 Accumulator (for brake).......................................................................120 Function..................................................................................120 Slack adjuster................................................................................121 Function..................................................................................122 Operation.................................................................................122 When brake is applied.....................................................................122 When brake is released....................................................................122 Brake.........................................................................................123 Outline...................................................................................124 Outline...................................................................................124 When brake is applied.....................................................................124 When brake is released....................................................................124 Parking brake control.........................................................................125 Outline...................................................................................125 Parking brake.................................................................................126 Outline...................................................................................126 white 10-96...............................................................................128 Hydraulic piping..............................................................................130 Outline...................................................................................131 Work equipment lever linkage..................................................................132 2-lever type..............................................................................132 Multi function mono-lever type............................................................133 (If equipped).............................................................................133 Hydraulic tank................................................................................134 Specifications............................................................................134 Breather..................................................................................135 Prevention of negative pressure in tank...................................................135 Prevention of rise of pressure in tank....................................................135 4-gear pump unit..............................................................................136 SAR(3)90 + (2)32 + SBR(1)18 + 12..........................................................136 Outline...................................................................................136 Accumulator (for PPC circuit).................................................................138 Outline...................................................................................138 Specifications............................................................................138 Lock valve....................................................................................139 Outline...................................................................................139 E. C. S. S. valve.............................................................................140 (E. C. S. S. : Electronically Controlled Suspension System)...............................140 (If equipped).............................................................................140 Accumulator (forE.C.S.S.).................................................................142 (If equipped).............................................................................142 Function..................................................................................142 Specifications............................................................................142 Hydraulic piping of cooling system............................................................143 Outline...................................................................................143 Cooling fan motor.............................................................................144 Specifications............................................................................144 Function..................................................................................145 Principle of operation....................................................................145 Work equipment control valve..................................................................147 1. 2-Spool valve..........................................................................147 2. 3-spool valve..........................................................................151 3. Relief valve...........................................................................154 Function..................................................................................154 Operation.................................................................................154 4. Safety-suction valve...................................................................155 Function..................................................................................155 Operation.................................................................................155 (1) Operation as safety valve.............................................................155 (2) Operation as suction valve............................................................156 5. Suction valve..........................................................................156 Function..................................................................................156 Operation.................................................................................156 6. Cut-off valve..........................................................................158 Function..................................................................................160 Operating condition of cut-off valve......................................................160 (1) When work equipment pump pressure is lower than cut-off pressure......................160 (2) When work equipment pump pressure is higher than cut-off pressure.....................161 7. Operation of work equipment control valve..............................................162 (1) Lift arm and bucket spool neutral position............................................162 Operation.................................................................................162 (2) Lift arm spool raise position.........................................................163 Operation.................................................................................163 (3) Lift arm spool lower position.........................................................164 Operation.................................................................................164 (4) Lift arm spool float position.........................................................165 Operation.................................................................................165 (5) Bucket spool dump position............................................................166 Operation.................................................................................166 (6) Bucket spool tilt position............................................................167 Operation.................................................................................167 Work equipment PPC valve......................................................................168 2-lever type..............................................................................168 Operation.................................................................................170 Mono-lever type...........................................................................174 Operation.................................................................................176 Attachment PPC valve..........................................................................180 Operation.................................................................................182 Work equipment linkage........................................................................184 Bucket........................................................................................186 Bucket positioner and boom kick-out...........................................................188 Outline...................................................................................189 Bucket positioner.........................................................................189 Boom kick-out.............................................................................189 Operation of proximity switch.............................................................190 When bucket is tilted.....................................................................190 Function of proximity switch..............................................................191 When object of sensing is over sensing face of proximity switch...........................191 When object of sensing is apart from over sensing face of proximity switch................191 When lift arm is raised...................................................................192 Function of proximity switch..............................................................193 When object of sensing is over sensing face of proximity switch...........................193 When object of sensing is apart from over sensing face of proximity switch................193 Work equipment cylinder.......................................................................194 LIFT CYLINDER.............................................................................194 BUCKET CYLINDER...........................................................................194 Air conditioner...............................................................................195 AIR CONDITIONER PIPING....................................................................195 Machine monitoring system.....................................................................196 Outline...................................................................................196 Individual circuit diagrams of the machine monitor........................................198 Starting and lighting.....................................................................198 Power supply and network..................................................................200 Speed meter specification.................................................................200 Load meter specification..................................................................200 Sensing...................................................................................202 HST safety control........................................................................203 Autmatic preheating.......................................................................204 Load meter................................................................................205 Load meter specification..................................................................205 Machine monitor...............................................................................208 Speed meter specification.................................................................208 Load meter specification (If equipped)....................................................209 List of items displayed on monitor............................................................210 Service mode functions....................................................................214 Items Related to the Fault History of Electric System.....................................220 Items Related to the Fault History of Machine System......................................223 Real-time monitor function Speed meter specification......................................225 Real-time monitor function Load meter specification.......................................228 Real-time Monitoring Items................................................................231 (Reference) Inspection with real-time monitor.............................................234 Tuning function...........................................................................235 Maintenance functions.....................................................................237 How to input interval.....................................................................239 Setting required when optional device is installed........................................241 Function of selecting optional device.....................................................241 Speed meter specification.................................................................241 Selection of tire deviation...............................................................242 Function of selecting optional device.....................................................244 Load meter specification..................................................................244 Selection of tire deviation...............................................................245 Selection of lift arm deviation...........................................................245 Selection of printer setting state........................................................245 Machine serial No. setting function.......................................................247 Load Meter Function.......................................................................248 Input / Ouput signal..................................................................257 Speed meter specification.............................................................257 Load meter specification..............................................................259 Electrical system (HST controller system).....................................................264 System diagram............................................................................264 Control function..........................................................................265 HST controller................................................................................268 Input and output signals..................................................................268 Function of selecting directional selector switch.............................................269 (If equipped).............................................................................269 Outline...................................................................................269 Function..................................................................................269 Operation.................................................................................270 When travel direction is changed with directional lever...................................270 When directional selector switch is selected to be used...................................270 When travel direction is changed with directional selector switch.........................270 When directional lever has priority.......................................................270 Engine start circuit..........................................................................271 Function..................................................................................271 Operation.................................................................................272 Engine stop circuit...........................................................................273 Operation.................................................................................273 Preheating circuit (automatic preheating system)..............................................274 Outline...................................................................................274 Operation.................................................................................274 Parking brake circuit.........................................................................275 Operation.................................................................................276 Electronically controlled suspension system...................................................278 Electronically Controlled Suspension System (Abbreviation: ECSS)..........................278 (If equipped).............................................................................278 Function..................................................................................278 System operation table....................................................................278 Sensors.......................................................................................279 Engine speed sensor.......................................................................279 Function..................................................................................279 Speed sensor..............................................................................279 Function..................................................................................279 ENGINE OIL PRESSURE SENSOR................................................................280 Function..................................................................................280 FUEL LEVEL SENSOR.........................................................................280 Function..................................................................................280 COOLANT TEMPERATURE SENSOR (FORMONITOR)...................................................281 HST oil temperature sensor................................................................281 Function..................................................................................281 COOLANT TEMPERATURE SENSOR (FOR PREHEATING)...............................................281 Function..................................................................................281 Axle oil temperature sensor...............................................................282 Function..................................................................................282 HST oil pressure sensor Oil puressure sensor for load meter (Load meter specification)....282 Function..................................................................................282 Steering oil pressure sensor..............................................................283 (Machines equipped emergency steering)....................................................283 Emergency steering oil pressure sensor....................................................283 (Machines equipped emergency steering)....................................................283 Function..................................................................................283 HST filter clogging sensor................................................................283 Function..................................................................................283 COOLANT LEVEL SENSOR......................................................................284 Function..................................................................................284 Engine oil level sensor...................................................................285 Function..................................................................................285 Air cleaner clogging sensor...............................................................285 Function..................................................................................285 Lift arm angle sensor (Load meter specification) (If equipped)............................286 Function..................................................................................286 STANDARD VALUE TABLE FOR engine...............................................................288 STANDARD VALUE TABLE FOR CHASSIS..............................................................289 20 TESTING AND ADJUSTING..........................................................................287 Tools for testing, adjusting, and troubleshooting.............................................294 Measuring engine speed........................................................................296 Measuring exhaust gas color...................................................................297 Adjusting valve clearance.....................................................................299 Measuring compression pressure................................................................300 Measuring blow-by pressure....................................................................301 Testing and adjusting fuel injection timing...................................................302 Measuring engine oil pressure.................................................................303 Measuring, testing operating force of accelerator pedal.......................................304 Adjusting engine stop solenoid................................................................306 Adjusting engine speed sensor.................................................................307 Testing and adjusting air conditioner compressor belt tension.................................307 Measuring directional lever...................................................................308 Testing and adjusting HST oil pressure........................................................308 Measuring clutch control pressure.............................................................313 Testing and adjusting steering wheel..........................................................314 Testing and adjusting steering oil pressure...................................................315 Bleeding air from steering circuit............................................................316 Testing hydraulic fan.........................................................................317 Measuring brake pedal.........................................................................318 Testing and adjusting brake pedal linkage.....................................................319 Measuring brake oil pressure..................................................................322 Bleeding air from brake circuit...............................................................325 Measuring parking brake performance...........................................................326 Measuring and adjusting work equipment control lever..........................................328 Testing and adjusting work equipment hydraulic pressure.......................................329 Testing and adjusting work equipment PPC oil pressure.........................................330 Bleeding air..................................................................................332 Releasing remaining pressure in hydraulic circuit.............................................333 Testing and adjusting bucket positioner.......................................................333 Testing and adjusting of boom kick-out........................................................335 Checking proximity switch actuation display lamp..............................................336 Special functions of machine monitor..........................................................338 Pm CLINIC INSPECTION CHART....................................................................371 TESTING AND ADJUSTING.........................................................................293 Points to remember when troubleshooting.......................................................374 Sequence of events in troubleshooting.........................................................375 Precautions when carrying out maintenance.....................................................376 Check before troubleshooting..................................................................384 Categories, procedure, and method of using troubleshooting charts.............................385 Phenomena considered to be failures and troubleshooting no....................................386 Connection table for connector pin numbers....................................................389 T-adapter table...............................................................................410 Connector types and mounting locat............................................................413 ions..........................................................................................413 Connector layout drawing......................................................................420 TROUBLESHOOTING...............................................................................373 Before troubleshooting code display...........................................................426 Before troubleshooting electrical system......................................................428 Information contained in troubuleshooting table...............................................429 TROUBLESHOOTING OF HST CONTROLLER SYSTEM (HST MODE)...........................................425 Before troubleshooting code display...........................................................460 Before troubleshooting electrical system......................................................462 Information contained in troubuleshooting table...............................................463 TROUBLESHOOTING OF monitor SYSTEM (mon MODE)..................................................457 Before troubleshooting electrical system......................................................598 Information contained in troubuleshooting table...............................................599 TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE).................................................597 Method of using troubleshooting chart.........................................................680 Failure code and cause table..................................................................682 TROUBLESHOOTING OF HYDRAULIC, MECHANICAL SYSTEM (H MODE)......................................679 Method of using troubleshooting charts........................................................704 TROUBLESHOOTING OF ENGINE (S MODE)............................................................703 How to read this manual.......................................................................728 Removal and installation of assemblies....................................................728 Disassembly and assembly of assemblies....................................................729 Precautions when carrying out operation.......................................................730 Special tool list.............................................................................732 Sketch of special tools.......................................................................735 Removal, installation of fuel injection pump assembly.........................................740 Special tools.............................................................................740 Removal...................................................................................740 Installation..............................................................................742 Removal, installation of nozzle holder assembly...............................................744 Special tools.............................................................................744 Removal...................................................................................744 Installation..............................................................................745 Removal, installation of cylinder head assembly...............................................746 Special tools.............................................................................746 Removal...................................................................................746 Installation..............................................................................751 Removal, installation of engine assembly......................................................754 Removal...................................................................................754 Installation..............................................................................759 Removal, installation of radiator assembly....................................................761 Removal...................................................................................761 Installation..............................................................................761 Removal, installation of air aftercooler......................................................762 Removal...................................................................................762 Installation..............................................................................763 Removal, installation of hydraulic oil cooler assembly........................................764 Removal...................................................................................764 Installation..............................................................................765 Removal, installation of cooling fan and fan motor assembly...................................766 Removal...................................................................................766 Installation..............................................................................767 Removal, installation of fuel tank assembly...................................................768 Removal...................................................................................768 Installation..............................................................................769 Removal, installation of transfer.............................................................770 Removal...................................................................................770 Installation..............................................................................771 Disassembly, assembly of transfer assembly....................................................772 Special tools.............................................................................772 Disassembly...............................................................................772 Assembly..................................................................................780 Removal, installation of parking brake assembly...............................................792 Removal...................................................................................792 Installation..............................................................................793 Disassembly, assembly of parking brake assembly...............................................794 Special tools.............................................................................794 Disassembly...............................................................................794 Assembly..................................................................................796 Removal, installation of front axle assembly..................................................799 Removal...................................................................................799 Installation..............................................................................800 Removal, installation of rear axle assembly...................................................801 Removal...................................................................................801 Installation..............................................................................803 Disassembly, assembly of axle housing assembly................................................804 Special tools.............................................................................804 Disassembly...............................................................................804 Assembly..................................................................................809 Disassembly, assembly of differential assembly................................................817 Special tools.............................................................................817 Assembly..................................................................................826 Removal, installation of HST pump and 4-gear pump assembly....................................841 Removal...................................................................................841 Installation..............................................................................843 Removal, installation of HST motor 1 assembly.................................................844 Removal...................................................................................844 Installation..............................................................................845 Removal, installation of HST motor 2 assembly.................................................846 Removal...................................................................................846 Installation..............................................................................847 Removal, installation of work equipment control valve assembly................................848 Removal...................................................................................848 Installation..............................................................................849 Removal, installation of travel damper valve assembly.........................................850 Removal...................................................................................850 Installation..............................................................................851 Removal, installation of hydraulic tank assembly..............................................852 Removal...................................................................................852 Installation..............................................................................853 Removal, installation of work equipment assembly..............................................854 Removal...................................................................................854 Installation..............................................................................857 Disassembly and assembly of HST pump assembly.................................................861 Special tools list........................................................................861 Disassembly...............................................................................861 Assembly..................................................................................870 Disassembly and assembly of HST motor assembly................................................888 Special tools list........................................................................888 Disassembly...............................................................................888 Assembly..................................................................................897 Disassembly, assembly of hydraulic cylinder assembly..........................................904 Special tools.............................................................................904 Disassembly...............................................................................904 Assembly..................................................................................907 Removal, installation of operator's cab assembly..............................................911 Special tools.............................................................................911 Removal...................................................................................911 Installation..............................................................................915 Removal, installation of operator's cab glass (Stuckglass)...................................917 Special tools.............................................................................917 Removal...................................................................................917 Installation..............................................................................918 Coating materials.........................................................................924 Removal, installation of center hinge pin.....................................................925 Special tools.............................................................................925 Removal...................................................................................925 Installation..............................................................................930 Removal, installation of counterweight........................................................936 Removal...................................................................................936 Installation..............................................................................937 Removal, installation of air conditioner unit assembly........................................938 Special tools.............................................................................938 Removal...................................................................................938 Installation..............................................................................940 Removal, installation of air conditioner compressor assembly..................................941 Special tools.............................................................................941 Removal...................................................................................941 Installation..............................................................................941 Removal, installation of monitor panel........................................................942 Removal...................................................................................942 Installation..............................................................................945 30 DISASSEMBLY AND ASSEMBLY.......................................................................727 90 OTHERS.........................................................................................947
KOMATSU WA320-5H WHEEL LOADER SHOP MANUAL (H50051 AND UP) – PDF DOWNLOAD:
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