Liebherr R974 C Hydraulic Excavator Operators Service Repair Manual

Table of Content – Liebherr R974 C Hydraulic Excavator Type 449, 1010, 1011, 1057, 1058, 1059, 1084, 1124, 1137, 1146, 1152, 1365, 1371, 1417, 1420 Manual

• Front page
• Contents
• Introduction
• 1 General information
  • 1.10: Safety instructions
  • 1.20: Standards and regulations
  • 1.50: Lubricants and operating fluids
  • 1.60: Conservation guidelines
• 2 Tools
  • 2.01: Special tools for maintenance and repair
  • 2.02: Special tools for Liebherr Diesel engines
  • 2.02:
  • 2.03: Special tools for the hydraulic system
  • 2.06: Special tools for electrical connectors
  • 2.07: Special tools for gears
  • 2.08: Common tools
  • 2.10: Measuring tool for spool travel
  • 2.12: Mounting tools for hydraulic cylinders
  • 2.14: Wrench for the slotted nut on the swing gear SAT
  • 2.15: Compression device for brake piston of gear SAT
  • 2.16: Compression device for brake piston of gear FAT – construction line A
  • 2.18: Compression device for brake piston of gear FAT – construction line P(r)
  • 2.19: Tools for installing the slipring seals
• 3 Technical data / Maintenance guidelines
  • 3.10: Technical data
  • 3.12: Technical data
  • 3.50: Control and maintenance chart
  • 3.60: Control and maintenance chart
  • 3.70: Lubrication chart
  • 3.75: Lubrication chart
• 4 Engine / Motor
  • 4.10: Technical Data Diesel Engines
• 5 Coupling / Splitterbox
  • 5.10: Coupling
  • 5.50: Pump distribution gear – construction line MKA 350 C
• 6 Hydraulic system
  • 6.10: Adjustment Check List
  • 6.20: Adjustment Check List
  • 6.50: Hydraulic system description
  • 6.70: Hydraulic Schematics – Components List
  • 6.75: Hydraulic Schematics – Components List
  • 6.90: List of hydraulic schematics – Standard execution
• 7 Hydraulic components
  • 7.06: Pumps assembly R964C – R974C
  • 7.13: LPV variable-displacement pump
  • 7.17: Variable-displacement pump A4 VG
  • 7.20: Hydraulic motors schedule
  • 7.22: FMF hydraulic fixed displacement motor
  • 7.27: FMV variable displacement hyd. motor
  • 7.31: Hydraulic cylinders
  • 7.32: Installations for pistons and piston nuts by hydraulic cylinders
  • 7.35: Extension and retraction speeds
  • 7.36: List of the hydraulic cylinders
  • 7.37: List of the hydraulic cylinders
  • 7.45: Regulating and servo oil unit
  • 7.75: 1-way rotary connection
  • 7.77: 5-way rotary connection
  • 7.90: Line break safety valve
  • 7.98: Hydraulic brake valve for travel motor
• 8 Electrical system
  • 8.10: Construction of the electrical system
  • 8.30: Monitoring display
  • 8.80: Component list – Electrical diagrams
  • 8.90: List of electrical diagrams – Standard execution
• 9 Swing gear
  • 9.05: Swing gears – schedule
  • 9.10: Technical data of the swing gears SAT
  • 9.20: Swing Gear SAT – Function
  • 9.40: Gear SAT 400 /256 – Section view
  • 9.45: Gear SAT 375 /253 – Section view
• 10 Swing ring
  • 10.20: Single row ball swing ring
• 11 Travel gear
  • 11.05: Gear types schedule
  • 11.11: Technical data of the travel gears
  • 11.20: Gear FAT of construction line P(r)
  • 11.30: Gear FAT of construction line A
  • 11.40: Removing and reinstalling the travel gears FAT
  • 11.51: Sealing the gear – construction line P(r) and A
  • 11.71: Travel brakes
  • 11.75: Slipring seals
• 12 Track components
  • 12.10: Track components of crawler excavators
  • 12.29: List of the track components on R974C
  • 12.30: Wear on the track components
  • 12.32: Wear limits for chains
  • 12.35: Wear limits for rollers
  • 12.38: Wear limits for guide & sprocket wheels
  • 12.40: Removal, installation of track components
  • 12.50: Spring tension units – technical data
  • 12.55: Spring tension unit preassembled
  • 12.56: Tension unit with single spring loose
  • 12.57: Tension unit with two tension springs loose
  • 12.58: Grease tensioner and guide wheel unit
  • 12.70: Track roller
  • 12.77: Carrier roller (supported on both sides)
  • 12.80: Slipring seals
• 13 Undercarriage
  • 13.10: Undercarriage with adjustable track gauge
• 16 Options
  • 16.20: Additional attachment AHS 11 with Tool Control
  • 16.28: Rotating device (AS2)
  • 16.30: Refuelling pump
  • 16.36: Option demolition
  • 16.40: Overload warning system
  • 16.42: Overload warning system
  • 16.48: Stick and hoist cylinder shut-down
  • 16.91: List of diagrams
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 7
• 18
• 19
• 17 Cab / Heater / Air conditioning system
  • 17.30: Auxiliary heating D5WS
  • 17.50: Heating and air-conditioning system
• 18 Central lubrication
  • 18.10: System with 2 progressive lubrication circuits
  • 18.30: Research of breakdowns and propositions of solutions
  • 18.51: Lubrication pump
  • 18.61: Progressive distributor SX-E
  • 18.66: Progressive distributor MX-F
  • 18.81: Lube hoses repair instructions