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Shop Manual
DX300LC-5 Excavator
1001 and Up
Serial Number
50001 and Up
Serial Number
DOOSAN and the DOOSAN logo are registered
trademarks of DOOSAN Corporation in the United
950106-00980E
States and various other countries around the
world.
February 2014
Copyright DOOSAN 2014
Original Instructions

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Summary of Contents for Doosan DX300LC-5

  • Page 1 Shop Manual DX300LC-5 Excavator 1001 and Up Serial Number 50001 and Up Serial Number DOOSAN and the DOOSAN logo are registered trademarks of DOOSAN Corporation in the United 950106-00980E States and various other countries around the world. February 2014 Copyright DOOSAN 2014...
  • Page 2: Specifications

    Table of Contents Safety Track Excavator Maintenance Safety Specifications Specifications General Maintenance General Maintenance Instructions Standard Torques Engine Engine Engine Coolant Heater (Option) Upper Structure Cabin Counterweight Oil Tank Fuel Tank Main Pump Drive Coupling (Main Pump) Main Control Valve Swing Device Fan Pump for Oil Cooler Fan Motor for Oil Cooler...
  • Page 3: Hydraulic System

    Front Boom and Arm Bucket Cylinders Hydraulic System Hydraulic System Hydraulic System Testing and Adjustment Hydraulic System Troubleshooting Electrical System Electrical System Electrical System Troubleshooting 10 Options One Way Two-way Rotating Quick Coupler Two Pump 11 Schematic Hydraulic Schematic/Electrical Schematic Table of Contents Page II...
  • Page 4 Track Excavator Maintenance Safety Edition 1 DX300LC-5 Track Excavator Maintenance Safety 1-1-1...
  • Page 5: Safety Instructions

    Untrained operators and failure to follow instructions can cause death or serious injury. SAFETY MESSAGES Replace with Safety Messages Section on pages III and IV in the Doosan Operation & Maintenance Manual. Track Excavator Maintenance Safety DX300LC-5 1-1-5...
  • Page 6: Know Your Machine

    Keep in mind that rain, snow, ice, loose gravel, soft ground, slopes etc., can change operating capabilities of your machine. Track Excavator Maintenance Safety DX300LC-5 1-1-6...
  • Page 7 Proper Work Tools and Attachments Only use work tools and attachments that are recommended by DOOSAN for use on DOOSAN machines. When installing and using optional attachments, read instruction manual for attachment, and general information related to attachments in this manual.
  • Page 8 Additional protection for operator's cabin could be required such as an Operator Protection Guard (OPG) or window guards. Contact your DOOSAN distributor for information on available protective guards. HAOA110L Figure 2 To prevent personnel from being struck by flying objects, keep personnel out of work area.
  • Page 9 Engine Edition 1 Engine DX300LC-5 4-1-1...
  • Page 10 Maintenance Manual and signs (decals) on machine. Follow warnings and instructions in the manuals when making repairs, adjustments or servicing. Check for correct function after adjustments repairs or service. Untrained operators and failure to follow instructions can cause death or serious injury. DX300LC-5 Engine 4-1-7...
  • Page 11 OVERVIEW EX1301800 Figure 1 Engine DX300LC-5 4-1-8...
  • Page 12 The lifting eyes 99 637 are designed to manage max 30 a maximum inclination angle of 30° when lifting an engine. Undo the engine insulator bolts and lift away/out the engine. max 20 • Engine weight: about 950 kg FG020237 Figure 21 DX300LC-5 Engine 4-1-51...
  • Page 13 Cover the turbocharger inlet pipe. Disconnect the fuel pipes to and from the engine. Mark the pipes to make reinstalling easier and plug the connections. Remove coolant connections for SCR, to engine (1) and from engine (2). EX1301906 Figure 22 Engine DX300LC-5 4-1-52...
  • Page 14 30° when lifting an engine. 11. Check carefully there is nothing that may be removed with the engine or prevent lifting. 12. Undo the engine insulator screws and lift away/out the engine. DX300LC-5 Engine 4-1-53...
  • Page 15 Our support email: ebooklibonline@outlook.com...

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