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Daewoo Doosan Solar 290LL Excavator Log Loader Shop Manual – PDF DOWNLOAD
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Daewoo Doosan Solar 290LL Excavator Log Loader Shop Manual – PDF DOWNLOAD
Solar 290LL
Shop Manual
2023-7132E
Serial Number 0001 and Up
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Daewoo Doosan Solar 290LL Excavator Log Loader Shop Manual – PDF DOWNLOAD
DESCRIPTION:
Daewoo Doosan Solar 290LL Excavator Log Loader Shop Manual – PDF DOWNLOAD
Solar 290LL
Shop Manual
2023-7132E
Shop Manual
2023-7132E
Serial Number 0001 and Up
GENERAL SAFETY ESSENTIALS:
ACCESSORY APPLICATIONS:
- This excavator has been primarily designed for moving logs. For use other object handling devices, contact DOOSAN for proper installation and application. Lifting-work applications (unless restricted or prohibited by local regulations) are permitted in approved lift configuration, to rated capacity only, with no sideloading.
- Do not use the machine for activities for which it was not intended. Do not use the grapple for lifting work (other than logs). Use of an accessory hydraulic hammer (breaker), work in rough terrain, demolition applications or other hazardous operation may require installation of additional protective structures to safeguard the operator.
LIFTING CAPACITY RATING CONFIGURATION
- Lifting capacity ratings that are printed at the end of this safety section are based on the machine being level, on a firm supporting surface, with hooks and slings attached in approved configuration. Loads must be balanced and supported evenly.
- Use tag lines to keep the load steady if wind conditions and large surface area are a problem. Work crew hand signals, individual tasks and safe procedures should all be universally understood before the lift is made.
TABLE OF CONTENTS:
Daewoo Doosan Solar 290LL Excavator Log Loader Shop Manual – PDF DOWNLOAD
Publication Request for Proposed Revision............................................................. 7 Safety................................................................................................ 9 Track Excavator Safety S0102010................................................................... 11 To the Operator of a DOOSAN Daewoo Excavator.................................................. 13 Learn Signal Words Used With Safety Alert Symbol.......................................... 14 General Safety Essentials..................................................................... 15 Accessory Applications.................................................................... 15 Lifting Capacity Rating Configuration..................................................... 15 Location of Safety Labels..................................................................... 15 Summary of Safety Precautions for Lifting in Digging Mode..................................... 16 Unauthorized Modifications................................................................ 16 Work Site Precautions......................................................................... 17 Attachment Precautions.................................................................... 17 Avoid High Voltage Cables................................................................. 17 Be Aware of Height Obstacles.............................................................. 17 Use Care on Loose Support................................................................. 17 Use Solid Support Blocking................................................................ 17 Overhangs Are Dangerous................................................................... 18 Sloping Terrain Requires Caution.......................................................... 18 Stay Alert for People Moving through the Work Area........................................ 18 Be Aware of and Conform to Local Regulations.............................................. 18 Operation..................................................................................... 19 Operate While Seated at the Operator's Station ONLY....................................... 19 Before Starting the Engine................................................................ 19 Never Use Ether Starting Aids............................................................. 20 Mounting and Dismounting.................................................................. 20 Observe General Safety Rules.............................................................. 20 Engine Ventilation........................................................................ 20 Asbestos Dust Hazard Prevention........................................................... 21 Take Time to Provide Good Visibility...................................................... 21 Fuel, Oil and Hydraulic Fluid Fire Hazards................................................ 22 Boost Starting or Charging Engine Batteries............................................... 22 Travel Controls May Produce Reversed Operations........................................... 23 Keep "Pinch Point" Areas Clear - Use Caution in Reverse and Swing......................... 23 Travel Precautions........................................................................ 23 Operate Carefully on Snow and Ice and in Very Cold Temperatures........................... 23 Parking Machine........................................................................... 24 Shutdown Control Functions................................................................ 24 Additional Operational Comments........................................................... 24 Equipment..................................................................................... 25 Rough Operation May Require Use of Certified Safety Equipment............................. 25 Install Additional Safety Equipment If Conditions Require................................. 25 Movement Alarms........................................................................... 25 Seat Belts Must Be Used at All Times...................................................... 26 Window Glass Breaking Tool................................................................ 26 Keep a Fire Extinguisher at Hand.......................................................... 26 Maintain Standard Safety Equipment in Good Condition...................................... 26 Safety - critical Parts Must Be Replaced Periodically..................................... 27 Hydraulic Cylinder Seals Require Periodic Replacement..................................... 27 High-pressure Hydraulic Lines Can Store a Great Deal of Energy............................ 27 The Operator's Cabin and Turntable Deck Must Be Kept Clean................................ 27 Clothing and Personal Protective Items.................................................... 27 Breathing Masks, Ear Protection May Be Required........................................... 28 Battery Electrolyte and Explosive Gases Can Be Lethal..................................... 28 Disconnect Batteries for Electrical Service Before Electrical Welding..................... 28 Use Low Heat Portable Lighting............................................................ 28 Maintenance................................................................................... 29 Use Warning Tag Control Lockout Procedures During Service................................. 29 Do not Run the Engine If Repairs or Work Is Being Performed Alone......................... 29 Always Use Adequate Equipment Supports and Blocking....................................... 29 Warning for Counterweight and Front Attachment Removal.................................... 29 Do not Work on Hot Engines or Hot Cooling or Hydraulic Systems............................ 30 Cool Down Is Required Before Radiator or Reservoir Checks................................. 30 Precautions with High-pressure Line, Tubes and Hoses...................................... 31 Obtain immediate medical attention if pressurized oil pierces the skin.................... 31 Use Correct Replacement Fasteners Tightened to Proper Torque.............................. 32 Dispose of All Petroleum Based Oils and Fluids Properly................................... 32 Track Tension Adjustments Require Caution................................................. 32 Do not attempt repairs you do not understand. There is no disgrace in asking for help..... 32 All Welding Must Be Performed By Qualified Welder......................................... 32 Cylinders................................................................................. 33 Hydraulic Cylinders, Pins and Bushings.................................................... 33 Shipping and Transportation................................................................... 34 Obey State and Local Over-the-Road Regulations............................................ 34 Lifting With Sling............................................................................ 34 Specifications........................................................................................ 35 Specifications for Solar 290LL S0202010........................................................... 37 General Description........................................................................... 39 General Dimensions............................................................................ 42 Dimensions and Working Range.................................................................. 44 General Specifications........................................................................ 45 Engine Performance Curve...................................................................... 46 Performance Tests............................................................................. 48 Excavator Performance Standards............................................................... 49 Test Conditions........................................................................... 49 Travel Speed and Travel Motor Balance (Steering Deviation) Tests.......................... 49 Speed Test............................................................................ 49 Travel Deviation...................................................................... 50 Swing Speed Test...................................................................... 51 Swing Force Test...................................................................... 51 Cylinder Performance Tests................................................................ 52 Boom Cylinders Test................................................................... 52 Stick Cylinder Test................................................................... 52 Heel Cylinder Test.................................................................... 52 Hydraulic Cylinder Natural Drop Test.................................................. 52 Travel Motor Jack-up Test............................................................. 52 General Maintenance................................................................................... 53 General Maintenance Procedures S0302000........................................................... 55 Welding Precautions and Guidelines............................................................ 57 Hydraulic System General Precautions........................................................ 58 Maintenance Service and Repair Procedure...................................................... 59 General Precautions....................................................................... 59 Hydraulic System Cleanliness and Oil Leaks.................................................... 60 Maintenance Precautions for Hydraulic System Service...................................... 60 Oil Leakage Precautions................................................................... 60 Cleaning and Inspection....................................................................... 61 General Guidelines........................................................................ 61 Bearing inspection........................................................................ 62 Normal Bearing........................................................................ 63 Bent Cage............................................................................. 63 Galling............................................................................... 63 Abrasive Step Wear.................................................................... 64 Etching............................................................................... 64 Misalignment.......................................................................... 64 Indentations.......................................................................... 64 Fatigue Spalling...................................................................... 65 Brinelling............................................................................ 65 Cage Wear............................................................................. 65 Abrasive Roller Wear.................................................................. 65 Cracked Inner Race.................................................................... 66 Smears................................................................................ 66 Frettage.............................................................................. 66 Heat Discoloration.................................................................... 67 Stain Discoloration................................................................... 67 Standard Torques S0309000......................................................................... 69 Torque Values for Standard Metric Fasteners................................................... 71 Torque Values for Standard U.S. Fasteners..................................................... 72 Type 8 Phosphate Coated Hardware.............................................................. 74 Torque Values for Hose Clamps................................................................. 75 Torque Values for Split Flanges............................................................... 76 Torque Wrench Extension Tools................................................................. 77 Torque Multiplication..................................................................... 77 Other Uses for Torque Wrench Extension Tools.............................................. 78 Tightening Torque Specifications (Metric)................................................. 78 I. "Loctite" Fastener Adhesives....................................................... 79 II. "Loctite" Pipe Thread Sealant..................................................... 79 III. "Loctite" gasket/flange sealer................................................... 79 IV. "Loctite" retaining compounds..................................................... 80 V. "Loctite" Adhesives................................................................ 80 Upper Structure....................................................................................... 81 Cabin S0402000.................................................................................... 83 Removal....................................................................................... 85 Installation.................................................................................. 87 Window and Gasket Replacement................................................................. 90 Falling Object Protective Structures (FOPS)................................................... 91 Counterweight S0403000............................................................................ 93 General....................................................................................... 95 Removal....................................................................................... 97 Installation.................................................................................. 99 Fuel Tank S0405050................................................................................101 General Description...........................................................................103 Parts List................................................................................104 Specifications............................................................................105 Removal.......................................................................................106 Installation..................................................................................110 Start-up Procedures...........................................................................112 Fuel Transfer Pump S0405500.......................................................................113 General Description...........................................................................115 Theory of Operation.......................................................................115 Troubleshooting...............................................................................116 Replacement of Rotor and Vane.................................................................116 Replacement of Rear Cover.....................................................................117 Replacement of Armature.......................................................................118 Swing Bearing S0407000............................................................................119 Swing Bearing Maintenance.....................................................................121 Operating Recommendation..................................................................121 Measuring Swing Bearing Axial Play........................................................121 Measuring Bearing Lateral Play............................................................121 Swing Bearing Basic Operation.............................................................122 Rebuilding Swing Bearing..................................................................122 Swing Reduction Gearbox S0408000..................................................................125 General Description...........................................................................127 Theory of Operation.......................................................................127 Parts List................................................................................128 Specifications............................................................................129 Troubleshooting, Testing and Adjustment.......................................................130 Removal.......................................................................................131 Disassembly...................................................................................133 Cleaning and Inspection (Wear Limits and Tolerances)..........................................137 Reassembly....................................................................................138 Installation..................................................................................142 Lower Structure and Chassis...........................................................................143 Track Assembly S0505010...........................................................................145 General Description...........................................................................147 Track Tension.................................................................................147 Cleaning and Inspection (Wear Limits and Tolerances)..........................................149 Track Shoes and Links.........................................................................152 Track Removal.............................................................................152 Track Installation........................................................................153 Front Idler Roller............................................................................154 Parts List................................................................................154 Front Idler Roller Disassembly............................................................155 Front Idler Roller Reassembly.............................................................157 Lower/Upper Roller............................................................................158 Parts List................................................................................158 Lower Roller Removal......................................................................159 Lower Roller Disassembly..................................................................159 Lower Roller Reassembly...................................................................160 Lower Roller Installation.................................................................161 Upper Roller Removal/Installation.........................................................161 Track Spring and Track Adjusting Cylinder.....................................................162 Parts List................................................................................162 Engine and Drive Train................................................................................165 Air Conditioner S0605010..........................................................................167 General Description...........................................................................169 Refrigerant Circulation.......................................................................170 Control Panel.................................................................................172 Control Specifications........................................................................173 Temperature Level Control and Display.........................................................174 Air Discharge According to Path Selection.....................................................175 Vent......................................................................................175 Foot......................................................................................176 Defroster.................................................................................177 Air-conditioning System Circuit Diagram.......................................................178 Troubleshooting...............................................................................180 Refrigerant Pressure Check................................................................180 Weight of R134a Gas Used In Machines..........................................................183 Refrigerant System Repairs....................................................................185 Refrigerant Safe Handling Procedures......................................................185 Repair and Replacement Procedure..........................................................186 Refrigerant Recovery......................................................................188 Vacuuming Refrigerant System..............................................................188 Leakage Check.............................................................................190 Refrigerant Charging......................................................................191 Inspecting System for Leakage.............................................................192 Drive Coupling (Main Pump) S0609000...............................................................195 Drive Coupling................................................................................197 Special Tools.................................................................................198 Kawasaki / Tong Myung Pump Tool...........................................................198 Uchida Pump Tool..........................................................................201 Drive Coupling Installation...................................................................203 Installation Procedure....................................................................208 Hydraulics............................................................................................209 Hydraulic System Troubleshooting, Testing and Adjustment S0702000.................................211 Hydraulic System - General Notes..............................................................214 Operation of Working Components...............................................................215 Boom Operating Circuit....................................................................215 Boom Up Circuit...........................................................................215 Boom Down Circuit.........................................................................215 Arm Operating Circuit.....................................................................215 Arm Crowd Circuit.........................................................................216 Arm Dump Circuit..........................................................................216 Bucket Operating Circuit..................................................................217 Bucket Crowd Circuit......................................................................217 Bucket Dump Circuit.......................................................................217 Swing Operating Circuit...................................................................217 Right Swing Operating Circuit.............................................................218 Left Swing Operating Circuit..............................................................218 Swing Relief Valve and Makeup Valve.......................................................218 Travel Operating Circuit..................................................................218 Forward Travel Circuit....................................................................219 Reverse Travel Circuit....................................................................219 Procedural Troubleshooting Baseline Recommendations...........................................220 Initial Checks and Tests to Establish Operating Condition of the Excavator................220 Triage Summary........................................................................220 Pilot Pressure................................................................................221 Adjustment and Testing....................................................................221 Power Mode Valve..............................................................................222 Current Signal and Hydraulic Pressure Adjustments.........................................222 Boom/Swing Priority Valve.....................................................................223 Control Valve Pressure and Current Adjustments............................................223 Dip Switch Setting (Export / Domestic)................................................224 Pressure Up Valve.............................................................................225 Checks and Adjustments....................................................................225 Pump Input Power Control......................................................................227 Pump Regulator Adjustment.................................................................227 Flow Meter and Flow Meter Kit Installation and Testing........................................230 Installation and Testing Procedure........................................................230 Swing System Troubleshooting..................................................................232 Precautions/Initial Checks................................................................232 Swing Relief Valve Checking and Adjustment................................................232 Troubleshooting - Swing Gearbox...............................................................234 Troubleshooting - Hydraulic Problems..........................................................235 Troubleshooting - Control Valve...............................................................237 Troubleshooting - Travel Control Valve........................................................238 Troubleshooting - Joystick Control Valve......................................................238 Accumulator S0703000..............................................................................241 General Description...........................................................................243 Specifications............................................................................244 Accumulator Charging..........................................................................247 Charging the Accumulator with Nitrogen....................................................247 Center Joint (Swivel) S0704000....................................................................249 General Description...........................................................................251 Parts List................................................................................252 Troubleshooting, Testing and Adjustment.......................................................253 Inspection................................................................................253 Testing...................................................................................253 Disassembly...................................................................................254 Reassembly....................................................................................254 Swing Motor S0707200..............................................................................257 General Description...........................................................................259 Theory of Operation.......................................................................259 Swing Motor Anticavitation Makeup Valve...................................................260 Relief Valve..............................................................................261 Swing Brake Operation.....................................................................261 Parts List (Model Solar 250LC-V, 255LC-V).................................................264 Parts List (Models Solar 225LC-V, 225NLC-V, 290LC-V, and 290LL)...........................266 Specifications (Model Solar 225LC-V, 225NLC-V)............................................268 Specifications (Models Solar 250LC-V, 255LC-V, 290LC-V, and 290LL)........................268 Special Tools.................................................................................269 Disassembly...................................................................................270 Cleaning and Inspection (Wear Limits and Tolerances)..........................................277 Reassembly....................................................................................279 Travel Motor (With Gearbox) (Kawasaki DNB Series) S0707310........................................287 General Description...........................................................................289 Theory of Operation.......................................................................289 Hydraulic Motor Operation.............................................................290 Operation of reduction gearbox........................................................296 Travel Motor Parts List...................................................................298 Travel Reduction Gearbox Parts List.......................................................300 Specifications............................................................................301 Name Plate Identification.............................................................301 Specifications........................................................................302 Recommended Bolt, Size of Plug and Torque.............................................302 Special Tools and Materials...................................................................304 Special Tools.............................................................................304 Travel Motor..........................................................................304 Reduction Gearbox.....................................................................304 Troubleshooting, Testing and Adjustment.......................................................306 General Notice............................................................................306 Troubleshooting...........................................................................306 Disassembly...................................................................................310 General Notes for disassembly.............................................................310 Reduction Gearbox.........................................................................310 Hydraulic Motor...........................................................................315 Disassembly of Valve Casing Subassembly...............................................318 Disassembly of the Cylinder Subassembly...............................................319 Cleaning and Inspection (Wear Limits and Tolerances)..........................................321 General Inspection........................................................................321 Assembly..................................................................................321 Pipe laying...............................................................................322 Gear oil..................................................................................322 General Notice............................................................................323 Wear Limits...............................................................................323 Standard Parts Replacement of Travel Motor............................................323 Service Standards for Replacing Worn Parts of Reduction gearbox.......................325 Reassembly....................................................................................327 General Instructions for Reassembly.......................................................327 Hydraulic Motor...........................................................................327 Reassembly of Drive Shaft Subassembly.................................................327 Reassembly of Valve Casing Subassembly................................................328 Reassembly of Cylindrical Subassembly.................................................329 Reassembly of Motor...................................................................330 Reduction Gearbox.........................................................................333 Grapple Rotate Motor S0707400.....................................................................339 General Description...........................................................................341 General Notes.............................................................................341 Torqmotor™ Features.......................................................................342 Parts List................................................................................344 Special Tools and Materials...................................................................345 Special Tools.............................................................................345 Tools and Materials Required for Servicing................................................346 Torque Chart..............................................................................347 Troubleshooting, Testing and Adjustment.......................................................348 Preliminary Checks........................................................................348 Hydraulic Components......................................................................348 Disassembly and Inspection (Preparation Before Disassembly)...............................349 Disassembly...................................................................................351 Reassembly....................................................................................360 One Piece Stator Reassembly...............................................................372 Two Piece Stator Reassembly...............................................................373 Start-up Procedures...........................................................................375 Hydraulic Fluid...........................................................................375 Main Pump (With Regulator) S0708300...............................................................377 General Description...........................................................................379 Gear (Pilot) Pump.........................................................................381 Relief Valve..............................................................................381 Pump Regulator Description................................................................382 Horsepower Control........................................................................382 Power Shift Control.......................................................................382 Negative Oil Discharge (Pump Bypass) Control..............................................382 Pump Regulator Operation..................................................................383 Pump Output Decrease......................................................................385 Pump Discharge Decrease...................................................................385 Pump Discharge Increase...................................................................385 Horsepower Control........................................................................385 Overload Protection.......................................................................386 Regulator Adjustment......................................................................386 Pump Input Power Control Adjustment.......................................................387 Electric Proportional Reducing Valve..................................................387 Parts List................................................................................388 Main Pump.............................................................................388 Pump Regulator........................................................................390 Specifications............................................................................392 Hydraulic Pump Performance Characteristics................................................392 Main Pump Pressure/Flow Output........................................................392 Troubleshooting, Testing and Adjustment.......................................................394 Main Pump.................................................................................394 Disassembly...................................................................................395 General Disassembly.......................................................................395 Main Pump Disassembly.....................................................................396 Pump Regulator Disassembly................................................................398 Cleaning and Inspection (Wear Limits and Tolerances)..........................................402 Service Standards for Replacing Worn Parts................................................403 Reassembly....................................................................................404 Pump Regulator Reassembly.................................................................404 Main Pump Reassembly......................................................................408 Main Control Valve S0709400.......................................................................411 Control Valve Operation.......................................................................414 Swing Priority Circuit....................................................................414 Arm Priority Circuit......................................................................415 Bucket (Junction) Circuit.................................................................416 Straight Traveling Circuit................................................................417 Plunger Replacement.......................................................................419 Main Relief Valve.........................................................................420 Overload Relief Valve.....................................................................421 Arm Load Holding Valve....................................................................423 Boom Load Holding Valve...................................................................426 Arm Regeneration..........................................................................428 Boom Regeneration.........................................................................430 Foot Relief Valve.........................................................................431 Parts List................................................................................432 Main Plunger Element..................................................................432 Main Relief Valve.....................................................................433 Overload Relief Valve.................................................................434 Bucket Unity Check....................................................................435 Boom Load Holding Valve...............................................................436 Boom Unity Check......................................................................436 Arm Regeneration Valve................................................................437 Foot Relief Valve.....................................................................437 Arm Priority Valve [Ap Valve].........................................................437 Check Valve [Tr, Am-2]................................................................438 Check Valve [Opt, Bkt, Bm-1, Bm-2]....................................................438 Check Valve...........................................................................438 Check Valve...........................................................................439 Cap...................................................................................439 Check Valve [Tl]......................................................................439 Check Valve [Sw]......................................................................440 Check Valve [Am-1]....................................................................440 Straight Travel Selector Valve........................................................440 Swing Priority Valve [Sp Valve].......................................................441 Center Bypass Valve [Cb Valve]........................................................441 Arm Load Holding Valve................................................................442 Specifications............................................................................442 Control Valve Drawing and Hydraulic Circuit...................................................443 Disassembly and Reassembly....................................................................448 General Disassembly.......................................................................448 General Reassembly........................................................................448 Main Plunger Element - Disassembly and Assembly...........................................449 Tool......................................................................................449 Main Relief Valve.........................................................................452 Main Relief Valve Adjustment..............................................................453 Main Relief Valve - Reassembly........................................................453 High-pressure Adjustment..............................................................454 Low-pressure Adjustment...............................................................454 Overload Relief Valve.....................................................................455 Arm Load Holding Valve....................................................................457 Check Valve Main Body.................................................................457 Cover Assembly........................................................................458 Boom Load Holding Valve...................................................................460 Arm Regeneration Valve....................................................................462 Bucket Unity Check........................................................................463 Foot Relief Valve.........................................................................464 Center Bypass Valve (CB Valve)............................................................465 Boom Parallel Switch Valve................................................................466 Tool......................................................................................466 Swing Priority Valve......................................................................468 Pilot Switch Element..................................................................469 Boom Unity Check Valve....................................................................470 Straight Travel Selector Valve............................................................471 Check Valve - Locations...................................................................472 Check Valve...............................................................................473 A: Check Valve (Main Relief Valve, TS)................................................473 B: Check Valve (P2)...................................................................473 C: Check Valve [TR, AM-2].............................................................474 D: Check Valve [OPT, BKT, BM-1, BM-2].................................................474 E: Check Valve [TL]...................................................................475 F: Check Valve [SW]...................................................................476 G: Check Valve [AM-1].................................................................477 Pilot Control Valve (Work Lever / Joystick) S0709450..............................................479 General Description...........................................................................481 Theory of Operation.......................................................................481 Neutral Mode..........................................................................481 Control Mode..........................................................................481 Parts List................................................................................482 Specifications............................................................................483 Torques...............................................................................483 Performance...........................................................................484 Hydraulic Specifications..................................................................484 Special Tools.................................................................................485 Disassembly...................................................................................486 Reassembly....................................................................................491 Travel Control Valve S0709800.....................................................................497 General Description...........................................................................499 Theory of Operation.......................................................................499 Pressure Reducing Valve...............................................................499 Damping Device of Operation...........................................................500 Operating Levers in Neutral Position..................................................501 When levers are operated and direction is quickly reversed............................501 Parts List................................................................................502 Specifications............................................................................503 Torque Table..............................................................................503 Special Tools and Materials...................................................................504 Special Tools.............................................................................504 Special Jig 1 [For Separating Bushing (223)]..........................................504 Special JIg 2 [For Assembly of Retainer Ring (221)]...................................505 Troubleshooting, Testing and Adjustment.......................................................506 Disassembly...................................................................................507 Cleaning and Inspection (Wear Limits and Tolerances)..........................................514 Reassembly....................................................................................515 Travel Control Valve (Jeil Hydraulics) S0709810...................................................525 General Description...........................................................................527 Theory of operation.......................................................................527 Neutral mode..............................................................................527 Control mode..............................................................................528 Torque Table..............................................................................528 Troubleshooting, Testing and Adjustment.......................................................529 Disassembly...................................................................................530 Cleaning and Inspection (Wear Limits and Tolerances)..........................................535 Reassembly....................................................................................536 Hydraulic Schematic (Solar 290LL) S0792030........................................................541 General Description...........................................................................543 Solar 290LL...................................................................................544 General Notes.............................................................................546 Electrical System.....................................................................................547 Electrical System S0802000........................................................................549 Troubleshooting - Electrical System...........................................................552 Wiring Harness Illustrations..................................................................553 Overview......................................................................................553 Electric Wire Color.......................................................................553 Electric Supply System........................................................................554 Engine Starting Circuit.......................................................................556 Operation During Start Process............................................................556 Operation After Start Process.............................................................557 Operation of the Start Circuit (2) - Immediately After Start..........................558 Engine Preheating System......................................................................559 Engine Stop System............................................................................560 Operation In Engine Running Mode..........................................................560 Operation In Engine Stop Mode.............................................................562 Charging System...............................................................................564 Monitoring System.............................................................................565 Instrument Panel..............................................................................566 Function Check................................................................................568 Monitoring System Schematic...............................................................568 Operation.....................................................................................570 Instruments...............................................................................570 Mode Selector Switch..........................................................................572 Indicator Lights..............................................................................573 Initial Operation.............................................................................574 Electronic Hydraulic Control System (EPOS- V).................................................576 Power Mode Control............................................................................578 Operation.................................................................................579 1. Power Mode III.....................................................................579 2. Power Mode II......................................................................580 3. Power Mode I.......................................................................581 Power Mode Control - Circuit Diagram..........................................................584 Work Mode Control.............................................................................586 Operation.................................................................................587 1. Leveling Mode......................................................................587 2. Digging Mode.......................................................................587 3. Trenching Mode.....................................................................587 Work Mode Control - Circuit Diagram...........................................................588 Engine Control System.........................................................................589 Engine Control Motor..........................................................................590 Engine Control Dial...........................................................................591 Engine Control Circuit Diagram................................................................593 Automatic Deceleration Control (Auto Idle Control)............................................594 Engine Overheat Protection System.............................................................595 Power Boost Mode..............................................................................596 Operation.................................................................................596 Power Boost Control - Circuit Diagram.....................................................597 Automatic Travel Speed Control................................................................598 Automatic Travel Speed Control - Circuit Diagram..........................................599 Engine Control Device - Adjustment............................................................600 Self-diagnostic Function......................................................................603 EPOS-V Controller.........................................................................603 Engine Throttle Controller....................................................................607 Electrical Schematic (Solar 290LL) S0892030.......................................................609 General Description...........................................................................611 Solar 290LL...................................................................................612 Attachments...........................................................................................615
DAEWOO DOOSAN SOLAR 290LL EXCAVATOR LOG LOADER SHOP MANUAL – PDF DOWNLOAD:
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