Hyundai R250lc-7 Crawler Excavator Workshop Repair Service Manual
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PAGES:520
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Hyundai R250lc-7 Crawler Excavator Workshop Repair Service Manual
SUPPORT MACHINE PROPERLY
Always lower the attachment or implement to the ground before you work on the machine. If you must work on a lifted machine or attachment, securely support the machine or attachment. Do not support the machine on cinder blocks, hollow tiles, or props that may crumble under continuous load. Do not work under a machine that is supported solely by a jack. Follow recommended procedures in this manual.
SERVICE COOLING SYSTEM SAFELY
Explosive release of fluids from pressurized cooling system can cause serious burns. Shut off engine. Only remove filler cap when cool enough to touch with bare hands.
HANDLE FLUIDS SAFELY-AVOID FIRES
- Handle fuel with care; It is highly flammable. Do not refuel the machine while smoking or when near open flame or sparks. Always stop engine before refueling machine.
Fill fuel tank outdoors. - Store flammable fluids away from fire hazards. Do not incinerate or puncture pressurized containers. Make sure machine is clean of trash, grease, and debris. Do not store oily rags; They can ignite and burn spontaneously.
SERVICE MACHINE SAFELY
Tie long hair behind your head. Do not wear a necktie, scarf, loose clothing or necklace when you work near machine tools or moving parts. If these items were to get caught, severe injury could result. Remove rings and other jewelry to prevent electrical shorts and entanglement in moving parts.
STAY CLEAR OF MOVING PARTS
Entanglements in moving parts can cause serious injury. To prevent accidents, use care when working around rotating parts.
AVOID HIGH PRESSURE FLUIDS
Escaping fluid under pressure can penetrate the skin causing serious injury. Avoid the hazard by relieving pressure before disconnecting hydraulic or other lines. Tighten all connections before applying pressure. Search for leaks with a piece of cardboard. Protect hands and body from high pressure fluids. If an accident occurs, see a doctor immediately. Any fluid injected into the skin must be surgically removed within a few hours or gangrene may result.
TABLE OF CONTENTS:
Hyundai R250lc-7 Crawler Excavator Workshop Repair Service Manual
Group 1 Safety Hints 1-1
Group 2 Specifications 1-9
Group 1 Pump Device 2-1
Group 2 Main Control Valve 2-21
Group 3 Swing Device 2-47
Group 4 Travel Device 2-58
Group 5 RCV Lever 2-69
Group 6 RCV Pedal 2-76
Group 1 Hydraulic Circuit 3-1
Group 2 Main Circuit 3-2
Group 3 Pilot Circuit 3-5
Group 4 Single Operation 3-13
Group 5 Combined Operation 3-23
Group 1 Component Location 4-1
Group 2 Electrical Circuit 4-3
Group 3 Electrical Component Specification 4-19
Group 4 Connectors 4-27
Group 1 Outline 5-1
Group 2 Mode Selection System 5-3
Group 3 Automatic Deceleration System 5-6
Group 4 Power Boost System 5-7
Group 5 Travel Speed Control System 5-8
Group 6 Automatic Warming Up Function 5-9
Group 7 Engine Overheat Prevention Function 5-10
Group 8 Anti-Restart System 5-11
Group 9 Self-Diagnostic System 5-12
Group 10 Engine Control System 5-15
Group 11 EPPR(Electro Proportional Pressure Reducing) Valve 5-22
Group 12 Monitoring System 5-25
Group 1 Before Troubleshooting 6-1
Group 2 Hydraulic and Mechanical System 6-4
Group 3 Electrical System 6-24
Group 4 Mechatronics System 6-40
Group 1 Operational Performance Test 7-1
Group 2 Major Components 7-21
Group 3 Track and Work Equipment 7-31
Group 1 Precaution 8-1
Group 2 Tightening Torque 8-4
Group 3 Pump Device 8-7
Group 4 Main Control Valve 8-30
Group 5 Swing Device 8-43
Group 6 Travel Device 8-73
Group 7 RCV Lever 8-113
Group 8 Turning Joint 8-128
Group 9 Boom, Arm and Bucket Cylinder 8-133
Group 10 Undercarriage 8-150
Group 11 Work Equipment 8-162
Group 1 Introduction guide 9-1
Group 2 Engine system 9-2
Group 3 Electric system 9-4
Group 4 Hydraulic system 9-6
Group 5 Undercarriage 9-9
Group 6 Structure 9-10
Group 7 Work equipment 9-14
PLEASE NOTE:
- This is the same manual used by the dealers to diagnose and troubleshoot your vehicle
- You will be directed to the download page as soon as the purchase is completed. The whole payment and downloading process will take anywhere between 2-5 minutes
- Need any other service / repair / parts manual, please feel free to contact [email protected] . We still have 50,000 manuals unlisted
Ishaan Zaid –