Trusted Business
Verified & Licensed
Virus Free Files
100% Safe Downloads
Secure Payment
SSL Protected
Instant Delivery
Available Immediately
Sale!
Hitachi Ex8-2b Excavator Service Repair Manual – PDF DOWNLOAD
Original price was: $45.95.$29.95Current price is: $29.95.
Hitachi Ex8-2b Excavator Service Repair Manual
Instant PDF Download
Available immediately
Save to Your Device
Download & keep forever
Antivirus Scanned
100% virus-free
Trusted Worldwide
175,000+ customers
Description
Hitachi Ex8-2b Excavator Service Repair Manual
FILE DETAILS:
LANGUAGE:ENGLISH
PAGES:269
DOWNLOADABLE:YES
FILE TYPE:PDF
HITACHI EX8-2B EXCAVATOR SERVICE REPAIR MANUAL – PDF DOWNLOAD:
IMAGES PREVIEW OF THE MANUAL:
DESCRIPTION:
Hitachi Ex8-2b Excavator Service Repair Manual
TO THE READER:
This Workshop Manual has been prepared to provide servicing personnel with information on the mechanism, service and maintenance of KUBOTA Diesel Engine 68 mm STROKE SERIES. It is divided into two parts, “Mechanism” and ” Disassembling and Servicing”.
- Mechanism Information on construction and functions are included for each engine section. This part should be understood before proceeding with trouble- shooting, disassembling and servicing.
- Disassembling and Servicing Under the heading “General” come general precautions, troubleshooting, lists of servicing specifications and periodic inspection items. For each engine section, there are ”Checking and Adjustment”, “Disassembling and Assembling”, and ”Servicing” which cover procedures, precautions, factory specification and allowable limits.
All information, illustrations and specifications contained in this manual are based on the latest production information available at the time of publication. The right is reserved to make changes in all information at any time without notice.
TABLE OF CONTENTS:
Hitachi Ex8-2b Excavator Service Repair Manual
Return to Contents...................................................... 0 TECHNICAL MANUAL EX8-2B................................................. 1 SECTION 1 GENERAL................................................... 2 Specifications.................................................. 4 Specifications.............................................. 4 Working Ranges and Machine Dimensions for Transportation.... 5 Engine Specification........................................ 6 Component Layout................................................ 8 Main Component.............................................. 8 Electrical System........................................... 9 Monitor Panel............................................... 10 SECTION 2 SYSTEM.................................................... 12 Hydraulic System................................................ 14 Hydraulic System............................................ 14 SECTION 3 COMPONENT OPERATION....................................... 16 Pump Device..................................................... 18 Outline..................................................... 18 Function.................................................... 19 Swing Device.................................................... 20 Swing Motor................................................. 20 Control Valve................................................... 22 Outline..................................................... 22 Main Relief Valve........................................... 23 Overload Relief Valve....................................... 24 Overload Relief Valve (Swing)............................... 25 Make-Up Valve............................................... 26 Travel Device................................................... 28 Outline..................................................... 28 Travel Reduction Gear....................................... 29 Travel Motor................................................ 30 Counterbalance Valve........................................ 31 Others.......................................................... 34 Swing Bearing............................................... 34 Center Joint................................................ 35 Track Adjuster.............................................. 37 SECTION 4 OPERATIONAL PERFORMANCE TEST.............................. 38 Introduction.................................................... 40 Operational Performance Test................................ 40 Preparation for Performance Tests........................... 41 Engine Test..................................................... 42 Engine Speed................................................ 42 Engine Compression Pressure................................. 43 Valve Clearance............................................. 44 Nozzle Check................................................ 45 Injection Timing............................................ 47 Excavator Test.................................................. 48 Travel Speed................................................ 48 Track Revolution Speed...................................... 49 Mistrack Check.............................................. 50 Travel Motor Leakage........................................ 51 Swing Speed................................................. 52 Swing Function Drift Check.................................. 53 Swing Motor Leakage......................................... 54 Swing Bearing Play.......................................... 55 Hydraulic Cylinder Cycle Time............................... 56 Dig Function Drift.......................................... 58 Control Lever Operating Force............................... 59 Control Lever Stroke........................................ 60 Component Test.................................................. 62 Main Relief Valve Set Pressure.............................. 62 Overload Relief Valve Set Pressure.......................... 64 Standard........................................................ 66 Operational Performance Standard............................ 66 SECTION 5 TROUBLESHOOTING........................................... 68 Diagnosing Procedure............................................ 70 Introduction................................................ 70 Diagnosing Procedure........................................ 71 Troubleshooting A............................................... 74 Troubleshooting A Procedure................................. 74 Starter Does Not Rotate..................................... 75 Actuator Operating System Troubleshooting................... 76 Front Attachment System Troubleshooting..................... 77 Swing System Troubleshooting................................ 81 Travel System Troubleshooting............................... 82 Blade System Troubleshooting................................ 83 Troubleshooting B............................................... 84 Troubleshooting B Procedure................................. 84 Malfunction of Alternator Indicator......................... 85 Malfunction of Engine Oil Pressure Indicator................ 86 Malfunction of Overheat Indicator........................... 87 Malfunction of Hour Meter................................... 88 Electrical System Inspection.................................... 90 Precautions for Inspection and Maintenance.................. 90 Fuse Continuity Test........................................ 92 Battery Voltage Check....................................... 93 Voltage Check............................................... 94 Continuity Check............................................ 95 THE ATTACHED DIAGLAM LIST........................................... 98 Electrical Circuit Diagram...................................... 99 Main Harness....................................................100 Hydraulic Circuit (Standard)....................................101 Hydraulic Circuit (Undercarriage Width Extension Retraction)....102 WORKSHOP MANUAL EX8-2B..................................................103 SECTION 1 GENERAL INFORMATION.......................................104 Precautions for Disassembling and Assembling....................106 Floating Seal Precautions...................................106 Precautions for Using Nylon Sling...........................107 Tightening......................................................110 Tightening Torque Specifications............................110 Torque Chart................................................111 Piping Joint................................................114 SECTION 2 UPPERSTRUCTURE............................................118 Pump Device.....................................................120 Remove and Install Pump Device..............................120 Control Valve...................................................122 Remove and Install Control Valve............................122 Swing Device....................................................126 Remove and Install Swing Device.............................126 Disassemble Swing Reduction Gear............................129 Assemble Swing Reduction Gear...............................131 SECTION 3 UNDERCARRIAGE.............................................138 Travel Device...................................................140 Remove and Install Travel Device............................140 Disassemble Travel Device...................................142 Assemble Travel Device......................................145 Maintenance Standard........................................151 Center Joint....................................................152 Remove and Install Center Joint.............................152 SECTION 4 FRONT ATTACHMENT..........................................156 Front Attachment................................................158 Remove and Install Front Attachment.........................158 Maintenance Standard........................................163 Cylinder........................................................166 Remove and Install Cylinder.................................166 Maintenance Standard........................................169 SECTION 5 ENGINE AND ACCESSORY......................................170 General Information.............................................172 To the Reader...............................................172 Specifications..............................................173 Perforance Curves...........................................174 Dimensions..................................................175 Engine Body.....................................................176 [1] Cylinder Block..........................................178 [2] Cylinder Head...........................................178 [3] Crankshaft..............................................179 [4] Pistion and Piston Rings................................179 [5] Connecting Rod..........................................179 [6] Camshaft................................................180 [7] Flywheel................................................180 [8] Rocker Arm..............................................180 [9] Valve Timing............................................180 Lubication System...............................................182 [1] General.................................................182 [2] Oil Pump................................................184 [3] Relief Valve............................................184 [4] Oil Filter Cartridge....................................184 [5] Oil Pressure Switch.....................................185 Cooling System..................................................186 [1] General.................................................186 [2] Water Pump..............................................186 [3] Thermostat..............................................187 [4] Radiator................................................187 [5] Radiator Cap............................................187 Fuel System.....................................................188 [1] General.................................................188 [2] Fuel Filter.............................................188 [3] Fuel Feed Pump..........................................189 [4] Injection Pump..........................................189 [5] Injection Nozzle........................................192 [6] Governor................................................192 Electrical System...............................................194 [1] Starting System.........................................194 [2] Chargine System.........................................198 General.........................................................202 [1] Engine Identification...................................202 [2] Gereral Precautions.....................................202 [3] Tightening Torques......................................204 [4] Troubleshooting.........................................205 [5] Servicing Specifications................................207 [6] Maintenance Check List..................................213 [7] Check and Maintenance...................................214 [8] Special Tools...........................................221 Engine Body.....................................................226 Checking and Adjustings.....................................226 Disassembling and Assembling................................228 [1] Draining Water and Oil..............................228 [2] External Components.................................228 [3] Cylinder Head and Valves............................228 [4] Timing Gear and Camshaft............................231 [5] Piston and Connecting Rod...........................234 [6] Flywheel and Crankshaft.............................237 Servicing...................................................239 [1] Cyilinder Head and Valves...........................239 [2] Piston and Connecting Rod...........................244 [3] Timing Gear and Camshaft............................246 [4] Crankshaft..........................................249 [5] Cylinder............................................253 Lubricating System..............................................254 Checking....................................................254 Disassembling and Assembling................................254 Servicing...................................................254 [1] Oil Pump............................................254 Cooling System..................................................256 Checking and Adjusting......................................256 [1] Fat Belt............................................256 [2] Radiator............................................256 [3] Thermostat..........................................257 Disassembling and Assembling................................257 [1] Thermostat and Water Pump...........................257 Fuel System.....................................................258 Checking and Adjusting......................................258 [1] Injection Nozzle....................................258 [2] Injection Pump......................................259 Disassembling and Assembling................................261 [1] Injection Nozzle....................................261 Electrical System...............................................262 Checking....................................................262 [1] Dynamo and Regulator................................262 [2] Starter.............................................263 [3] Glow Plug...........................................263 Disassembling and Assembling................................264 [1] Starter.............................................264 Servicing...................................................265 [1] Starter.............................................265
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]
1 review for Hitachi Ex8-2b Excavator Service Repair Manual – PDF DOWNLOAD
Add a review
Sterling Lance –
Good experience