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Daewoo Doosan Wheel Loader Mega 250-V Shop Manual – PDF DOWNLOAD
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Daewoo Doosan Wheel Loader Mega 250-V Shop Manual – PDF DOWNLOAD
Mega 250-V
Shop Manual
023-00050AE
S/N 1001 thru 2000 (Tier I)
S/N 2001 thru 3000 (Tier II)
023-00050AE
S/N 1001 thru 2000 (Tier I)
S/N 2001 thru 3000 (Tier II)
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Description
Daewoo Doosan Wheel Loader Mega 250-V Shop Manual – PDF DOWNLOAD
DESCRIPTION:
Daewoo Doosan Wheel Loader Mega 250-V Shop Manual – PDF DOWNLOAD
Mega 250-V
Shop Manual
023-00050AE
S/N 1001 thru 2000 (Tier I)
S/N 2001 thru 3000 (Tier II)
023-00050AE
S/N 1001 thru 2000 (Tier I)
S/N 2001 thru 3000 (Tier II)
- DOOSAN reserves the right to improve our products in a continuing process to provide the best possible product to the market place. These improvements can be implemented at any time with no obligation to change materials on previously sold products.
- It is recommended that consumers periodically contact their distributors for recent documentation on purchased equipment. This documentation may include attachments and optional equipment that is not available in your machine’s package.
- Please call your distributor for additional items that you may require. Illustrations used throughout this manual are us
GENERAL SAFETY ESSENTIALS ACCESSORY APPLICATIONS :
- This wheel loader has been designed primarily for moving earth with a bucket. For use as a grapple or for other object handling, contact DOOSAN. Lifting-work applications are permitted in approved lift configuration, to rated capacity only, with no side-loading (unless prohibited by local regulation).
- Do not use machine for activities for which it was not intended. Do not use bucket for lifting work, unless lift slings are used in approved configuration.
LOCATION OF SAFETY LABELS
- Location of safety labels (decals) can vary from unit to unit. Refer to appropriate Operation and Maintenance Manual, and Parts Manual for your unit.
- There are several specific warning signs on this machine. The exact location of hazards and the description of the hazards are reviewed in the appropriate Operation and Maintenance Manual. Please become familiarized with all warning signs.
- Make sure that all of the warning signs are legible. Clean the warning signs or replace the warning signs if you cannot read the words. Replace the illustrations if the illustrations are not visible. When you clean the warning signs, use a cloth, water and soap.
- Do not use solvent, gasoline, or other harsh chemicals to clean the safety signs. Solvents, gasoline, or other harsh chemicals could loosen the adhesive that secures the warning sign. Loose adhesive will allow the warning sign to fall off. Replace any safety sign that is damaged, or missing. If a safety sign is attached to a part that is replaced, install a safety sign on the replacement part.
UNAUTHORIZED MODIFICATIONS
- Any modification made without authorization or written approval from DOOSAN can create a safety hazard, for which the machine owner must be held responsible. For safety’s sake, replace all OEM parts with the correct authorized or genuine DOOSAN part.
- For example, not taking the time to replace fasteners, bolts or nuts with the correct replacement parts could lead to a condition in which the safety of critical assemblies is dangerously compromised.
TABLE OF CONTENTS:
Daewoo Doosan Wheel Loader Mega 250-V Shop Manual – PDF DOWNLOAD
Publication Request for Proposed Revision....................................................................... 7 Safety.......................................................................................................... 9 Wheel Loader Safety S0103010K............................................................................... 11 To the Operator of a DOOSAN Daewoo Wheel Loader......................................................... 13 Learn Signal Words Used with Safety Alert Symbol.................................................... 15 General Safety Essentials............................................................................... 16 Accessory Applications.............................................................................. 16 Location of Safety Labels............................................................................... 16 Unauthorized Modifications.............................................................................. 16 General Hazard Information.............................................................................. 17 Safety Rules........................................................................................ 17 Safety Features..................................................................................... 17 Inside Operator's Compartment....................................................................... 18 Clothing and Personal Protective Items.............................................................. 18 Breathing Masks, Ear Protection May Be Required..................................................... 19 Vibration Level Information......................................................................... 19 Asbestos Dust Hazard Prevention..................................................................... 19 Mounting and Dismounting............................................................................ 20 Fuel, Oil and Hydraulic Fluid Fire Hazards.......................................................... 20 Precautions When Handling Fluids at High Temperature................................................ 21 Injury from Work Equipment.......................................................................... 21 Fire Extinguisher and First Aid Kit................................................................. 22 Protection from Falling or Flying Objects........................................................... 22 Install Additional Safety Equipment If Conditions Require........................................... 23 Maintain Standard Safety Equipment in Good Condition................................................ 23 Attachment Precautions.............................................................................. 24 Accumulator......................................................................................... 24 Engine Ventilation.................................................................................. 24 Before Starting Engine.................................................................................. 25 Work Site Precautions............................................................................... 25 Checks Before Starting Engine....................................................................... 26 Engine Starting..................................................................................... 26 Before Operating Machine............................................................................ 27 Machine Operation....................................................................................... 28 Operate While Seated at Operator's Station ONLY..................................................... 28 Seat Belts Must Be Used at All Times................................................................ 28 Movement Alarms..................................................................................... 28 Travel Precautions.................................................................................. 29 Sloping Terrain Requires Caution.................................................................... 29 Avoid High Voltage Cables........................................................................... 30 Before Starting to Dig, Contact Authorities......................................................... 30 Be Aware of Height Obstacles........................................................................ 30 Use Care on Loose Support........................................................................... 30 Use Solid Support Blocking.......................................................................... 31 Digging Beneath Overhangs........................................................................... 31 Digging Beneath Wheel Loader........................................................................ 31 Stay Alert for People Moving Through Work Area...................................................... 31 Be Aware of and Conform to Local Regulations........................................................ 31 Never Use Ether Starting Aids....................................................................... 32 Observe General Safety Rules........................................................................ 32 Take Time to Provide Good Visibility................................................................ 32 Keep "Pinch Point" Areas Clear Use Caution in Reverse............................................. 33 Operate Carefully on Snow and Ice and in Very Cold Temperatures..................................... 33 Parking Machine..................................................................................... 33 Shutdown Control Functions.......................................................................... 34 Never Let Anyone Ride on Attachment................................................................. 34 Maintenance............................................................................................. 35 Use Warning Tag During Service...................................................................... 35 clean Before Inspection or Maintenance.............................................................. 35 Proper Tools........................................................................................ 36 Use of Lighting..................................................................................... 36 Fire Prevention and Explosion Prevention............................................................ 36 Burn Prevention..................................................................................... 37 Welding Repairs..................................................................................... 38 Precautions for Removal, Installation, and Storage of Attachments................................... 38 Precautions When Working on Machine................................................................. 39 Lock Inspection Covers.............................................................................. 39 Crushing Prevention and Cutting Prevention.......................................................... 39 Do Not Run Engine If Repairs or Work Are Being Performed Alone...................................... 39 Always Use Adequate Equipment Supports and Blocking................................................. 40 Do Not Work on Hot Engines or Hot Cooling or Hydraulic Systems...................................... 40 Hydraulic Cylinder Seals Require Periodic Replacement............................................... 40 Highpressure Hydraulic Lines Can Store a Great Deal of Energy...................................... 40 Precautions with Highpressure Line, Tubes and Hoses................................................ 41 Obtain Immediate Medical Attention if Pressurized Oil Pierces Skin.................................. 41 Use Correct Replacement Fasteners Tightened to Proper Torque........................................ 42 Safety Critical Parts Must Be Replaced Periodically................................................. 42 Dispose of All Petroleum Based Oils and Fluids Properly............................................. 42 Check Tire Pressure and Condition................................................................... 42 Battery................................................................................................. 43 Battery Hazard Prevention........................................................................... 43 Disconnect Batteries Before Electrical Service or Electrical Welding................................ 43 Use Low Heat Portable Lighting...................................................................... 44 Boost Starting or Charging Engine Batteries......................................................... 44 Towing.................................................................................................. 45 Precautions When Towing............................................................................. 45 Shipping and Transportation............................................................................. 46 Obey State and Local OvertheRoad Regulations...................................................... 46 Summary of Safety Precautions for Lifting........................................................... 46 Specifications.................................................................................................. 47 Specifications for Mega 250-V S0203110C..................................................................... 49 Component Locations..................................................................................... 52 General Specifications.................................................................................. 58 Engine Performance Curves............................................................................... 61 Working Range and Dimensions............................................................................ 64 Working Capacities...................................................................................... 67 Bucket Capacity..................................................................................... 67 Tipping Load........................................................................................ 67 Material Weight......................................................................................... 67 Approximate Weight of Workload Materials............................................................ 67 General Maintenance............................................................................................. 71 General Maintenance Procedures S0302000..................................................................... 73 Welding Precautions and Guidelines...................................................................... 75 Hydraulic System General Precautions.................................................................. 76 Maintenance Service and Repair Procedure................................................................ 77 General Precautions................................................................................. 77 Hydraulic System Cleanliness and Oil Leaks.............................................................. 78 Maintenance Precautions for Hydraulic System Service................................................ 78 Oil Leakage Precautions............................................................................. 78 Cleaning and Inspection................................................................................. 79 General Guidelines.................................................................................. 79 Bearing inspection.................................................................................. 80 Normal Bearing.................................................................................. 81 Bent Cage....................................................................................... 81 Galling......................................................................................... 81 Abrasive Step Wear.............................................................................. 82 Etching......................................................................................... 82 Misalignment.................................................................................... 82 Indentations.................................................................................... 82 Fatigue Spalling................................................................................ 83 Brinelling...................................................................................... 83 Cage Wear....................................................................................... 83 Abrasive Roller Wear............................................................................ 83 Cracked Inner Race.............................................................................. 84 Smears.......................................................................................... 84 Frettage........................................................................................ 84 Heat Discoloration.............................................................................. 85 Stain Discoloration............................................................................. 85 Standard Torques S0309000................................................................................... 87 Torque Values for Standard Metric Fasteners............................................................. 89 Torque Values for Standard U.S. Fasteners............................................................... 90 Type 8 Phosphate Coated Hardware........................................................................ 92 Torque Values for Hose Clamps........................................................................... 93 Torque Values for Split Flanges......................................................................... 94 Torque Wrench Extension Tools........................................................................... 95 Torque Multiplication............................................................................... 95 Other Uses for Torque Wrench Extension Tools........................................................ 96 Tightening Torque Specifications (Metric)........................................................... 96 I. "Loctite" Fastener Adhesives................................................................. 97 II. "Loctite" Pipe Thread Sealant............................................................... 97 III. "Loctite" gasket/flange sealer............................................................. 97 IV. "Loctite" retaining compounds............................................................... 98 V. "Loctite" Adhesives.......................................................................... 98 Upper Structure................................................................................................. 99 Counterweight S0403030K.....................................................................................101 Specifications..........................................................................................103 Counterweight...........................................................................................103 Fuel Transfer Pump S0405500.................................................................................105 General Description.....................................................................................107 Theory of Operation.................................................................................107 Troubleshooting.........................................................................................108 Replacement of Rotor and Vane...........................................................................108 Replacement of Rear Cover...............................................................................109 Replacement of Armature.................................................................................110 Hydraulic Oil Tank S0406060C................................................................................111 General Description.....................................................................................113 Parts List (M200V).................................................................................113 Parts List (M250V).................................................................................115 Specifications......................................................................................117 Lower Structure and Chassis.....................................................................................119 Center Joint (Articulation Joint) S0502050C.................................................................121 General Description.....................................................................................123 Maintenance Standard................................................................................124 Engine and Drive Train..........................................................................................127 Axle (Volvo) S0602210C......................................................................................129 Introduction............................................................................................131 General Description.....................................................................................133 Outline.............................................................................................133 Mega 250-V......................................................................................134 Disassembly and Assembly of Axle Units..................................................................137 Disassembly of Final Drive (Planetaries)............................................................138 Disassembly of Differential Unit....................................................................141 Cleaning and Inspection (Wear Limits and Tolerances)................................................144 Assembly of Differential Unit.......................................................................146 Assembly of Final Drive (Planetaries)...............................................................151 Special Tool........................................................................................154 Jig - 2 and Jig - 3.............................................................................154 Jig - 5.........................................................................................155 Brake Bleeding Procedure................................................................................156 Parking Brake Caliper (Volvo) S0603000......................................................................157 General Description.....................................................................................159 Operation...........................................................................................159 Parking Brake Applied...............................................................................160 Parking Brake Released..............................................................................160 Parts List..........................................................................................161 Special Tools and Materials.............................................................................161 Lubricants and Sealants.............................................................................161 Troubleshooting, Testing and Adjustment.................................................................162 Parking Brake System................................................................................162 Checking and Adjusting Parking Brake................................................................162 Measuring Pad Thickness.............................................................................162 Measuring Disk / Pad Clearance......................................................................162 Measuring Procedure.................................................................................163 Adjustment..........................................................................................163 Releasing the Parking Brake in Emergency Case.......................................................164 Disassembly.............................................................................................165 General.............................................................................................165 Changing Brake Pads.................................................................................165 Work Sequence During Change of Brake Pads...........................................................165 Cleaning and Inspection (Wear Limits and Tolerances)....................................................167 Reassembly..............................................................................................169 Air Conditioner S0605050K...................................................................................175 General Description.....................................................................................177 Refrigerant Circulation.................................................................................178 Control Panel...........................................................................................180 Control Specifications..................................................................................181 Temperature Level Control and Display...................................................................182 Air Discharge According to Path Selection...............................................................183 Vent................................................................................................183 Foot................................................................................................184 Defroster...........................................................................................185 Airconditioning System Circuit Diagram.................................................................186 Troubleshooting.........................................................................................188 Refrigerant Pressure Check..........................................................................188 Weight of R134a Gas Used In Machines....................................................................191 Refrigerant System Repairs..............................................................................193 Refrigerant Safe Handling Procedures................................................................193 Repair and Replacement Procedure....................................................................194 Refrigerant Recovery................................................................................196 Vacuuming Refrigerant System........................................................................196 Leakage Check.......................................................................................198 Refrigerant Charging................................................................................198 Inspecting System for Leakage.......................................................................200 Transmission and Torque Converter (ZF4WG-190) S0607120C....................................................201 Drive Train Description.................................................................................205 Transmission and Torque Converter.......................................................................206 Powershift Transmission.............................................................................207 Transmission Control................................................................................207 The Chart of Measuring Points and Connection 4 WG-190...............................................209 Oil Circuit Diagram 4WG-190.........................................................................211 Transmission Electric Components........................................................................213 TCU (Transmission Control Unit).....................................................................214 Transmission Control Valve..........................................................................214 Transmission Oil Temperature Sensor.................................................................215 Engine Pickup Sensor................................................................................215 Central Gear Pickup Sensor..........................................................................215 Turbine Pickup Sensor...............................................................................216 Output Speed Sensor.................................................................................216 Shift Lever Switch (DW-3)...........................................................................216 Auto Selector Switch................................................................................218 Display.............................................................................................218 Transmission Electrical Circuits........................................................................219 T/M Controller Circuit..............................................................................219 Traveling Circuits..................................................................................220 Neutral.........................................................................................220 Forward First Gear..............................................................................221 Forward Second Gear.............................................................................222 Forward Third Gear..............................................................................223 Forward Fourth Gear.............................................................................224 Reverse First Gear..............................................................................225 Reverse Second Gear.............................................................................226 Reverse Third Gear..............................................................................227 Downshift...........................................................................................228 Overview........................................................................................228 Kick-down: Forward Second Gear to Forward First Gear (Auto Selector Switch "O"- Manual Mode)....229 Downshift (Auto Selector Switch "I" - Auto Mode)................................................230 Transmission Cut Off................................................................................231 LIS (Load Isolation System) - Option................................................................232 Installation View.......................................................................................233 Inner Section.......................................................................................233 Front View..........................................................................................234 Side View...........................................................................................235 Rear View...........................................................................................236 Special Tools...........................................................................................237 Gearshift System....................................................................................237 Engine Connection...................................................................................239 Pressure Oil Pump...................................................................................240 Gearbox Housing.....................................................................................241 Input...............................................................................................243 Clutch..............................................................................................244 Clutch KV.......................................................................................244 Clutch KR.......................................................................................245 Clutch K1.......................................................................................246 Clutch K2.......................................................................................247 Clutch K3.......................................................................................248 Clutch K4.......................................................................................249 Output..............................................................................................250 Power Take-off......................................................................................251 Hydraulic Control Unit (HSG-94).........................................................................252 Disassembly.........................................................................................253 Reassembly..........................................................................................256 Transmission Disassembly................................................................................263 Hydraulic Control unit (HSG-94) and Duct plate......................................................263 Engine Connection - Converter.......................................................................264 Hydraulic Pump......................................................................................266 Converter Back Pressure Valve.......................................................................267 Remove output, Input and Clutches...................................................................268 Disassemble Clutch - KV and KR......................................................................273 Disassemble Clutch - K1, K2 and K3..................................................................276 Dissemble Clutch - K4...............................................................................278 Disassemble Drive Shaft.............................................................................279 Transmission Reassembly.................................................................................281 Install Oil Tube....................................................................................281 Reassemble Clutch - KV and KR.......................................................................283 Reassemble Clutch - K1, K2 and K3...................................................................290 Reassemble Clutch - K4..............................................................................296 Preassemble Drive Shaft.............................................................................303 Preassemble and Install Output......................................................................304 Install Preassembled Drive Shaft and Clutches.......................................................306 Install Pump Shaft (Power Take-off).................................................................309 Install Output Flanges..............................................................................310 Converter Back Pressure Valve.......................................................................312 Oil Feed Housing - Transmission Pump................................................................312 Engine Connection - Converter.......................................................................314 Converter Safety Valve..............................................................................317 Mount Duct Plate and Hydraulic Control Unit.........................................................317 Install Plugs and Oil Level Tube....................................................................318 Speed Sensor and Inductive Transmitters.............................................................319 Setting Inductive Transmitter.......................................................................320 Speed Sensor (Hall Sensor) N Output and Speedometer.................................................322 Transmission Error Codes (ZF) S0607900C.....................................................................325 Introduction............................................................................................328 Abbreviations...........................................................................................328 Display.................................................................................................328 Description of Fault Codes..........................................................................329 Display During Operation................................................................................330 Definition of Operating Modes...........................................................................332 Normal..............................................................................................332 Substitute Clutch Control...........................................................................332 Limphome...........................................................................................332 Transmission shut Down..............................................................................332 TCU Shut Down.......................................................................................332 Clutch Pack and Solenoid Valve Crossreference Table....................................................333 Table of Fault Codes....................................................................................334 Table of Fault Codes ERGOControl.....................................................................356 Measurement of Resistance at Actuator/ sensors and Cable................................................359 Actuator............................................................................................359 Cable...............................................................................................359 Hydraulics......................................................................................................361 Accumulator S0703010K.......................................................................................363 General Description.....................................................................................365 Specifications......................................................................................366 Cylinders S0705005K.........................................................................................369 General Description.....................................................................................372 Theory of Operation.................................................................................373 Parts List..........................................................................................374 Bucket Hydraulic Cylinder.......................................................................374 Lift Hydraulic Cylinder.........................................................................376 Steering Hydraulic Cylinder.....................................................................378 Troubleshooting, Testing and Adjustment.................................................................380 Disassembly.............................................................................................384 Cleaning and Inspection (Wear Limits and Tolerances)....................................................386 Reassembly..............................................................................................387 Fan Drive Hydraulic Motor (Haldex) S0707110C................................................................395 General Description.....................................................................................398 Theory of Operation.................................................................................398 Mega 200V......................................................................................398 Mega 250V......................................................................................400 Parts List..........................................................................................402 Specifications......................................................................................403 Troubleshooting, Testing and Adjustment.................................................................404 Tools Required..........................................................................................404 Disassembly.............................................................................................405 Inspect Parts for Wear..................................................................................408 General Information.....................................................................................409 Reverse Shaft Rotation of Pump..........................................................................409 Reassembly..............................................................................................410 Main Pump (Denison T67CCA Series) S0708500C.................................................................415 General Description.....................................................................................417 Theory of Operation.................................................................................417 Parts List..........................................................................................418 Service Kits........................................................................................420 Dimensions..........................................................................................421 Specification.......................................................................................422 Model Number Code Series T6DC...................................................................422 Specifications..................................................................................422 Special Tools...........................................................................................423 Seal Driver.........................................................................................423 Protective Cone.....................................................................................423 Disassembly.............................................................................................424 Reassembly..............................................................................................428 Brake Pedal Valve S0709270C.................................................................................433 General Description.....................................................................................435 Theory of Operation.................................................................................435 Specification.......................................................................................436 Brake System............................................................................................437 Brake and Pilot Supply Valve........................................................................437 Brake, Pilot and Fan Motor Supply Valve.............................................................438 Brake, Pilot and Fan Motor Supply Valve.................................................................439 Brake and Pilot Supply Valve........................................................................439 Specifications..................................................................................440 Brake, Pilot and Fan Motor Supply Valve.............................................................441 Specifications..................................................................................442 Main Control Valve (Toshiba) S0709456K......................................................................443 General Description.....................................................................................445 Specifications..........................................................................................447 Operation...............................................................................................448 Neutral.............................................................................................448 Bucket/option Spool Operation.......................................................................448 Boom Spool Operation................................................................................449 Boom Float......................................................................................449 Relief Valve........................................................................................449 Main Relief Valve...............................................................................449 Port Relief Valve...............................................................................449 Operation (Main Relief Valve).......................................................................450 Operation in Inoperative State..................................................................450 Operation (A)...................................................................................450 Operation (B)...................................................................................450 Operation (Port Relief Valve).......................................................................451 In the Inoperative State........................................................................451 Operation (A)...................................................................................451 Operation (B)...................................................................................451 Operation (C)...................................................................................452 Sucking Operation...............................................................................452 Pilot Control Valve S0709478C...............................................................................453 General Description.....................................................................................455 Pilot Valve Operation...............................................................................455 Standard............................................................................................456 Option..............................................................................................458 Pilot System............................................................................................460 Mega 200-V..........................................................................................461 Mega 250-V..........................................................................................462 Priority Valve S0709650.....................................................................................463 General Description.....................................................................................465 Theory of Operation.................................................................................465 Parts List..........................................................................................467 Specifications......................................................................................468 Special Tools...........................................................................................468 Disassembly.............................................................................................468 Cleaning and Inspection (Wear Limits and Tolerances)....................................................470 Reassembly..............................................................................................471 Power Steering Unit S0709705C...............................................................................475 General Description.....................................................................................477 Power Steering System...............................................................................477 Power Steering Unit.............................................................................477 Mega 200-V......................................................................................478 Mega250-V.......................................................................................479 Neutral Operation...............................................................................480 Right Turn......................................................................................480 Left Turn.......................................................................................480 Gerotor Operation...................................................................................480 Cushion Valve Operation.............................................................................481 Function........................................................................................481 Working Principle...............................................................................481 Parts List..........................................................................................482 Specifications......................................................................................483 Special Tools...........................................................................................484 Troubleshooting, Testing and Adjustment.................................................................486 Disassembly.............................................................................................487 Cleaning and Inspection.................................................................................491 Reassembly..............................................................................................492 Installation............................................................................................503 Unloader Valve S0709860C....................................................................................505 General Description.....................................................................................508 Theory of Operation.................................................................................508 Unloader Cartridge Identification...................................................................510 Specifications......................................................................................511 Hydraulic Schematic (Mega 250V) S0793005C..................................................................513 General Description.....................................................................................515 Mega 250V (Tier I) S/N 1001 thru 2000..................................................................516 Mega 250V (Tier II) S/N 2001 thru 3000.................................................................518 Mega 250V (Tier I) S/N 3001 thru 4000..................................................................520 Mega 250V (Tier II) S/N 4001 and Up....................................................................522 Electrical System...............................................................................................525 Electrical System S0802015C.................................................................................527 Overview................................................................................................531 Electric Wire Color.................................................................................531 Electric Supply System..................................................................................532 Engine Starting Circuit.................................................................................534 Operation During Start Process......................................................................534 Operation After Start Process (Mega 200-V)..........................................................536 Operation After Start Process (Mega (250-V).........................................................537 Engine Preheating System................................................................................538 Mega 200-V / 250-V (Tier I).........................................................................538 Mega 200-V / 250-V (Tier II)........................................................................542 Principle of Operation..........................................................................542 Engine Stop System......................................................................................546 Operation In Engine Running Mode....................................................................546 Operation In Engine Stop Mode.......................................................................548 Charging System.........................................................................................550 Monitoring System.......................................................................................551 Instrument Panel....................................................................................552 Function Check......................................................................................553 Monitoring System Schematic.........................................................................554 Mega 200-V......................................................................................554 Mega 250-V......................................................................................556 Operation...........................................................................................558 Instruments.....................................................................................558 Indicator Lights................................................................................560 Initial Operation...............................................................................561 Control Unit Operation..........................................................................562 Characteristic of Operation.....................................................................563 Windshield Wiper........................................................................................564 Front windshield wiper..............................................................................564 Front Windshield Wiper Circuit..................................................................564 Rear Windshield wiper...............................................................................565 Lighting System.........................................................................................568 Light Circuit (Mega 200-V)..........................................................................568 Light Circuit (Mega 250-V)..........................................................................572 Emergency Steering System (Option)......................................................................575 Block Diagram.......................................................................................575 Emergency Steering System Components................................................................576 Emergency Steering Timer........................................................................576 Emergency Steering Pump.........................................................................577 Emergency Steering Switch.......................................................................577 Emergency Steering System Electric Circuit..........................................................578 Electric Detent System..................................................................................579 Electric Circuit....................................................................................579 Boom Kick-out.......................................................................................580 Return To Dig.......................................................................................581 Proximity Switch................................................................................581 Electrical Schematic (Mega 250V) S0893005C.................................................................583 General Description.....................................................................................585 Mega 250V (Tier I).....................................................................................586 Mega 250V (Tier II)....................................................................................588 Attachments.....................................................................................................591
DAEWOO DOOSAN WHEEL LOADER MEGA 250-V SHOP MANUAL – PDF DOWNLOAD:
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- This is the SAME exact manual used by your dealers to fix your vehicle.
- The same can be yours in the next 2-3 mins as you will be directed to the download page immediately after paying for the manual.
- Any queries / doubts regarding your purchase, please feel free to contact [email protected]
R.D
