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Summary of Contents for Doosan DX140LCR-3
- Page 1 Shop Manual DX140LCR-3 Excavator Serial Number 1001 and Up DOOSAN and the DOOSAN logo are registered trademarks of DOOSAN Corporation in the United 950106-01021E States and various other countries around the world. December 2012 Copyright DOOSAN 2012 Original Instructions...
- Page 2 Table of Contents Safety Track Excavator Maintenance Safety ........... SP002907 Specifications Specifications for DX140LCR-3 ............SP002908 General Maintenance General Maintenance Instructions ............SP002454 Standard Torques ................. SP002404 Upper Structure Cabin ....................SP002909 Counterweight..................SP002910 Fuel Tank....................SP002911 Fuel Transfer Pump (Option) ..............SP002912 Swing Bearing..................
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Page 3: Electrical System
Remote Control Valve (Work Lever / Joystick) ........SP002921 Travel Control Valve (with Damper)............SP002922 Solenoid Valve Assembly ..............SP002923 Breaker EPPR Valve (Option) .............. SP002458 Hydraulic Schematic (DX140LCR-3) ............ SP002924 Electrical System Electrical System .................. SP002925 Electrical Schematic ................SP002926 Attachments Boom and Arm.................. - Page 4 SP002907 TRACK EXCAVATOR MAINTENANCE SAFETY SP002907 Track Excavator Maintenance Safety Edition 1 Track Excavator Maintenance Safety SP002907 Page 1...
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Page 5: Safety Instructions
APPLICABLE MODELS The contents of this section apply to the following models and serial number ranges. MODEL SERIAL NUMBER RANGE DX140LCR-3 1001 and Up Track Excavator Maintenance Safety SP002907 Page 5... -
Page 6: Safety Messages
SAFETY MESSAGES Safety messages and safety decals included in this manual and on the machine provide instructions how to operate, service and maintain the machine. Safety messages and safety decals indicate potential hazards and describe safety precautions required to avoid hazards. Operator and maintenance personnel should read and understand these safety messages and decals before beginning operation or maintenance. -
Page 7: Safety Decals
CAUTION CAUTION - This signal word is used on safety messages and safety labels and indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury. Other Signal Words In addition to safety signal words, the following signal words are used to indicate proper and effective use of machine. - Page 8 GENERAL Safe Operation is Operator's Responsibility Only trained and authorized personnel should operate and maintain the machine. Follow all safety rules, regulations and instructions when operating or performing maintenance on machine. • Do not operate machine if you are under the influence of drugs or alcohol.
- Page 9 SP002526 SWING REDUCTION GEARSP002526 Swing Reduction Gear Edition 2 Swing Reduction Gear SP002526 Page 1...
- Page 10 APPLICABLE MODELS The contents of this section apply to the following models and serial number ranges. MODEL SERIAL NUMBER RANGE DX140LC-3 1001 and Up, 50001 and Up DX140LCR-3 1001 and Up Swing Reduction Gear SP002526 Page 5...
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Page 11: General Description
GENERAL DESCRIPTION Theory of Operation The swing motor final drive is a two-stage planetary gearbox with two planet gears, two sun gears and two-stage output reduction. The planetary gear engages the ring gear. The pinion gear is connected to the output shaft and spline. The final drive reduces swing motor rpm to increase swing motor output torque. - Page 12 REASSEMBLY Parts List FG005349 Figure 1 Swing Reduction Gear SP002526 Page 8...
- Page 13 Reference Reference Description Description Number Number Casing Driveshaft Roller Bearing Ring Gear Roller Bearing Planetary Gear Socket Bolt Sun Gear 2 Oil Seal Planetary Gear Plug Sun Gear 1 Plug Carrier 2 Spring Pin Carrier 1 Retaining Ring Pin Assembly Retaining Ring Pin Assembly Ring...
- Page 14 SHRINKAGE FITTING OF SHAFT AND FLEXIBLE BEARING Washing of shaft Remove fluids like anticorrosive fluid applied to the shaft and use an air conditioner to remove foreign substances. Insert the support plate and the NILOS ring into the prepared shaft as shown in the figure and heat bearings (#22314, 2109-1041) on the heater.
- Page 15 Our support email: ebooklibonline@outlook.com...
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