John Deere 640L, 648L, 748L, 848L, 948L Skidders Index:

• Contents
  • Safety—Safety and Operator Conveniences
    • Safety and Operator Convenience Features
  • Safety—General Precautions
    • Information for European Union Directives and Customs Union Technical Regulations Compliance
    • Recognize Safety Information
    • Follow Safety Instructions
    • Operate Only If Qualified
    • Wear Protective Equipment
    • Avoid Unauthorized Machine Modifications
    • Inspect Machine
    • Stay Clear of Moving Parts
    • Avoid High-Pressure Fluids
    • Avoid High-Pressure Oils
    • Do Not Use Starting Fluid—6.8L Engines Only
    • Work In Ventilated Area
    • Avoid Static Electricity Risk When Refueling
    • Prevent Fires
    • In Case of Machine Fire
    • Prevent Battery Explosions
    • Handle Chemical Products Safely
    • Dispose of Waste Properly
    • Prepare for Emergencies
    • Clean Debris from Machine
    • Add Cab Guarding for Special Uses
  • Safety—Operating Precautions
    • Use Steps and Handholds Correctly
    • Start Only From Operator’s Seat
    • Use and Maintain Seat Belt
    • Prevent Acid Burns
    • Add and Operate Attachments Safely
    • Prevent Unintended Machine Movement
    • Avoid Work Site Hazards
    • Operate Machine Safely
    • Keep Riders Off Machine
    • Avoid Backover Accidents
    • Avoid Machine Tip Over
    • Operating on Slopes
    • Operating or Traveling On Public Roads
    • Use Special Care When Operating
    • Inspect and Maintain ROPS
    • Keep the Operator Protective Structure (OPS) in Place
    • Travel Safely
    • Avoid Power Lines
  • Safety—Maintenance Precautions
    • Park and Prepare for Service Safely
    • Follow Tire Recommendations
    • Service Tires Safely
    • Service Cooling System Safely
    • Service Accumulator Systems Safely
    • Remove Paint Before Welding or Heating
    • Make Welding Repairs Safely
    • Drive Metal Pins Safely
  • Safety—Safety Signs and Other Instructions
    • Safety Signs and Other Instructions
  • Operation—Operator’s Station
    • Machine Control
    • Adjusting Operator’s Seat
    • Seat Rotation—If Equipped
    • Steering Wheel—If Equipped
    • Joystick Steering Control—If Equipped
    • Horn Button
    • Sealed Switch Module (SSM) Functions
    • Primary Display Unit (PDU) Functions
    • Pedals
    • Command Arm Controls
    • Dome Light
    • Temperature and Blower Controls
    • Windshield Washer Fluid Tank
    • Opening Windows—If Equipped
    • Removing Operator’s Station Door Window Screens—If Equipped
    • Opening Alternative Exit
    • Operator’s Manual Compartment
    • Radio—If Equipped
    • Auxiliary Power Supply
    • Diesel Fired Coolant Heater (DFCH) Timer—If Equipped
    • Fire Extinguisher Mounting Location
    • Pressurized Water System—If Equipped
    • Fire Suppression System—If Equipped
    • 12-Volt Power Outlet
  • Operation—Operating the Machine
    • Before Starting Work
    • Inspect Machine Daily Before Starting
    • Engine Break-In Period
    • Starting the Engine
    • Check Primary Display Unit (PDU)
    • Engine Warm-Up
    • Transmission Warm-Up
    • Diesel Fired Coolant Heater (DFCH) Operation—If Equipped
    • Cold Weather Warm-Up
    • Blade Control Lever Operation
    • Winch Control Lever Operation—If Equipped
    • Right Joystick Operation
    • Differential Lock
    • Joystick Steering Operation—If Equipped
    • Mappable Controls (Grapple Skidders Only)
    • Battery Disconnect Switch
    • Engine Speed Control
    • Service Brake
    • Parking the Machine
    • Driving the Machine
    • Operating on a Downhill Grade
    • Operating in Water and Mud
    • Driving Up a Steep or Slippery Slope
    • Setting Travel Speed
    • Lowering Hydraulic Equipment to Ground With Engine Off
    • Fastening Cable to Winch Drum—4000 Series
    • Fastening Cable to Winch Drum—6000 Series
    • Winch Free Spool Drag Adjustment
    • Grapple Head
    • Grapple Dampers
    • Transporting Grapple
    • Tiedown and Lift Points
    • Loading Machine on a Trailer
    • Service ADVISOR™ Remote (SAR) Software Delivery Process
    • Towing Procedure
    • Lifting
  • Operation—Monitor Operation
    • Primary Display Unit (PDU) Display
    • Primary Display Unit (PDU) Display Messages
    • Main Menu
    • Operation—Stop Watch
    • Operation—Job Timer
    • Operation—Fuel Consumption
    • Diagnostics—Codes
    • Diagnostics—Diagnostic Help Screens
    • Diagnostics—Machine Readings
    • Diagnostics—Engine Readings
    • Diagnostics—Hydraulic Readings
    • Diagnostics—Transmission Readings
    • Diagnostics—JDLink Readings
    • Diagnostics—Software Delivery
    • Setup—Operator Settings
    • Setup—Machine Settings
    • Setup—Machine Calibration
  • Maintenance—Machine
    • Alternative and Synthetic Lubricants
    • Hydraulic Oil
    • Winch Oil
    • Differential and Cab Tilt Hydraulic Pump Oil
    • Park Brake Oil
    • Transmission Oil
    • Grease
    • Lubricant Storage
    • Mixing of Lubricants
    • Diesel Fuel
    • Lubricity of Diesel Fuel
    • Handling and Storing Diesel Fuel
    • BioDiesel Fuel
    • Testing Diesel Fuel
    • Supplemental Diesel Fuel Additives
    • Fuel Filters
    • Minimizing the Effect of Cold Weather on Diesel Engines
    • Diesel Engine Break-In™ Oil
    • Diesel Engine Oil — Tier 2 and Stage II
    • Engine Oil and Filter Service Intervals — Tier 2 and Stage II Engines
    • Oil Filters
    • Diesel Engine Coolant (engine with wet sleeve cylinder liners)
    • John Deere COOL-GARD™ II Coolant Extender
    • Water Quality for Mixing with Coolant Concentrate
    • Operating in Warm Temperature Climates
    • Testing Coolant Freeze Point
    • Disposing of Coolant
  • Maintenance—Periodic Maintenance
    • Service Machine at Specified Intervals
    • Check the Hour Meter Regularly
    • Prepare Machine for Maintenance
    • Fuel Tank
    • Locking Machine Frame
    • Opening the Grille
    • Removing Engine Side Shields
    • Opening Cooler Doors
    • Fluid Analysis Program Test Kits and 3-Way Coolant Test Kit
    • Service Intervals
    • Required Parts
    • Maintenance Legend
  • Maintenance—As Required
    • Clean Cooler Cores
    • Inspect Accessory Drive Belt
    • Replace Engine Air Cleaner Elements
    • Check Tire Pressure
    • Check Wheel Bolt Torque
    • Clean Fuel Tank Inlet Screen
    • Fill and Charge Pressurized Water System—If Equipped
    • Check Fire Extinguisher Charge
    • Lubricate Cab Door Hinges
    • Adjust Grapple Damper (Grapple Skidders Only)
    • Check Cab Recirculating Air Filter
    • Check Cab Fresh Air Filter
  • Maintenance—Every 10 Hours or Daily
    • Check Engine Coolant Level
    • Check Engine Oil Level
    • Check Transmission Oil Level
    • Check Hydraulic System Oil Level
    • Check and Drain Primary Fuel Filter and Water Separator
    • Check and Drain Auxiliary Fuel Filter and Water Separator
    • Clean Engine Air Intake Precleaner Screen
    • Check and Clean Engine Air Cleaner Dust Unloader Valve
    • Lubricate Articulation Points
    • Lubricate Yoke and Cross Head (Grapple Skidders Only)
    • Lubricate Tong Linkage and Cylinder Pivots (Grapple Skidders Only)
    • Lubricate Arch/Boom Linkage and Cylinder Pivots (Grapple Skidders Only)
    • Lubricate Winch Fairlead Rollers (Cable Skidders Only)
  • Maintenance—Every 100 Hours
    • Lubricate Rear Axle Pinion Seal and Park Brake Seals
    • Lubricate Front Axle Pivots, Pinion Seal, and Hydraulic Steering Cylinder Pins
    • Lubricate Blade and Cylinder Pivots
    • Lubricate Winch Fairlead Rollers (If Equipped, Grapple Skidders Only)
  • Maintenance—Inital Service—250 Hours
    • Drain and Refill Park Brake Oil
  • Maintenance—Every 250 Hours
    • Take Engine Oil Sample
  • Maintenance—Initial Service—500 Hours
    • Drain and Refill Axle Oil
    • Replace Axle Oil Filters
  • Maintenance—Every 500 Hours
    • Drain and Refill Engine Oil and Replace Filter
    • Inspect Engine Crankshaft Damper (848L and 948L Only)
    • Replace Primary Fuel Filter and Water Separator
    • Replace Auxiliary Fuel Filter and Water Separator
    • Replace Final Fuel Filter
    • Check Axle Oil Level
    • Check Park Brake Oil Level
    • Lubricate Front, Rear, and Articulation Drive Shafts
    • Remove and Clean Open Crankcase Ventilation (OCV) Hose
    • Check Engine Air Intake Hoses
    • Take Fluid Samples
  • Maintenance—Every 1000 Hours
    • Drain and Refill Park Brake Oil
    • Replace Axle Oil Filters
    • Lubricate Grapple Rotate Bearing (Grapple Skidders Only)
    • Check Coolant Condition
  • Maintenance—Initial Service—Every 2000 Hours
    • Replace Hydraulic System Oil Filter
  • Maintenance—Every 2000 Hours
    • Drain and Refill Transmission Oil and Replace Primary Transmission Oil Filter
    • Drain and Refill Axle Oil
    • Inspect Engine Crankshaft Damper (640L, 648L, and 748L Only)
    • Check and Adjust Engine Valve Lash
  • Maintenance—Every 4000 Hours
    • Drain and Refill Hydraulic System Oil
    • Replace Hydraulic System Oil Filter
    • Replace Hydraulic Reservoir Breather Filter
    • Drain and Refill Winch Oil—If Equipped
    • Replace Secondary Transmission Oil Filter
    • Replace Engine Crankshaft Damper
  • Maintenance—Every 6000 Hours
    • Drain and Refill Engine Cooling System
  • Maintenance—Every 10 000 Hours
    • Replace Engine Drive Shaft
  • Miscellaneous—Machine
    • Servicing Air Conditioning System—If Equipped
    • Hydraulic Cab Tilt Procedure
    • Check Diesel Fired Coolant Heater (DFCH)—If Equipped
    • Service Recommendations for Snap-To-Connect® (STC) Fittings
    • Do Not Service or Adjust Injection Nozzles or High-Pressure Fuel Pump
    • Do Not Service Control Valves, Cylinders, Pumps, or Motors
    • Secondary Steering—If Equipped
    • Bleed Fuel System
    • Precautions for Alternator and Regulator
    • Handling, Checking, and Servicing Batteries Carefully
    • Using Booster Batteries—24-Volt System
    • Using Battery Charger
    • Remove and Install Batteries
    • Replacing Batteries
    • Welding on Machine
    • Keep Electronic Control Unit Connectors Clean
    • Replacing Fuses
    • Resetting Circuit Breaker
    • Inspect and Clean Polycarbonate Windows
    • JDLink™ Machine Monitoring System (MMS)—If Equipped
    • Check Oil Lines and Fittings
    • Dual Wheel Installation
    • Fluid Sampling Ports
    • Hardware Torque Specifications
    • Unified Inch Bolt and Screw Torque Values
    • Metric Bolt and Screw Torque Values
  • Miscellaneous—Operational Checkout
    • Operational Checkout
      • Operational Checks—Key Switch ON, Engine Stopped
      • Operational Checks—Key Switch ON, Engine Running
  • Miscellaneous—Troubleshooting
    • Troubleshooting Procedure
    • Engine Troubleshooting
    • Electrical System Troubleshooting
    • Transmission and Park Brake Troubleshooting
    • Axle Differential Troubleshooting
    • Hydraulic System Troubleshooting
    • Steering System Troubleshooting
    • Winch Troubleshooting
    • Air Conditioning System Troubleshooting
    • Heater System Troubleshooting
  • Miscellaneous—Storage
    • Prepare Machine for Storage
    • Monthly Storage Procedure
  • Miscellaneous—Machine Numbers
    • Record Product Identification Number (PIN)
    • Record Engine Serial Number
    • Record Winch Serial Number
    • Record Transmission Serial Number
    • Record Rear Axle Housing Serial Number
    • Record Front Axle Housing Serial Number
    • Keep Proof of Ownership
    • Keep Machines Secure
  • Miscellaneous—Specifications
    • 640L Skidder—Machine Dimensions
    • 640L and 648L Skidder—Machine Specifications
    • 640L Skidder—Winch Specifications—4000 Series
    • 640L Skidder—Winch Specifications—6000 Series
    • 640L Skidder— Drain and Refill Capacities
    • 648L Skidder—Machine Dimensions
    • 648L, 748L, 848L, and 948L Skidder—Winch Specifications—4000 Series
    • 648L, 748L, 848L, and 948L Skidder—Winch Specifications—6000 Series
    • 648L Skidder—Grapple Dimensions
    • 648L Skidder—Drain and Refill Capacities
    • 748L Skidder—Machine Dimensions
    • 748L Skidder—Machine Specifications
    • 748L Skidder—Grapple Dimensions
    • 748L Skidder—Drain and Refill Capacities
    • 848L and 948L Skidder—Machine Dimensions
    • 848L Skidder—Machine Specifications
    • 848L Skidder—Grapple Dimensions
    • 848L and 948L Skidder—Drain and Refill Capacities
    • 948L Skidder—Machine Specifications
    • 948L Skidder—Grapple Dimensions
    • EC Declaration of Conformity
    • Customs Union—EAC
• Page Number
  • Section 1-1
  • Section 1-2
  • Section 1-3
  • Section 1-4
  • Section 1-5
  • Section 2-1
  • Section 2-2
  • Section 2-3
  • Section 3-1
  • Section 3-2
  • Section 3-3
  • Section 3-4
  • Section 3-5
  • Section 3-6
  • Section 3-7
  • Section 3-8
  • Section 3-9
  • Section 3-10
  • Section 3-11
  • Section 3-12
  • Section 3-13
  • Section 3-14
  • Section 3-15
  • Section 4-1
  • Section 4-2
  • Section 4.3
  • Section 4-4
  • Section 4-5
  • Section 4-6