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L-II SERIES SKIDDERS

L-II SERIES SKIDDERS
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L-II SERIES SKIDDERS

Product catalog summary
Overview: The L-II Series Skidders are designed for enhanced performance and durability, featuring over 1,600 component changes. These machines prioritize simplicity, reliability, and ease of maintenance, with significant improvements in electrical and hydraulic systems.
Key Features:
  • Redesigned Systems: Simplified routing of electrical and hydraulic systems enhances reliability and maintenance.
  • 768L-II Bogie Skidder: Provides superior traction and stability, especially in wet conditions and on steep slopes.
  • Winches and Steering: Two-speed winches increase line pull, and steering sensors improve operator comfort.
  • Grapples and Tires: Larger grapples and higher-ply tire options increase load capacity and durability.
Transmission and Power:
  • Continuously Variable Transmission (CVT): Offers efficiency and ease of use, automatically adjusting to load demands.
  • Engine Performance: Constant engine speed reduces wear and enhances fluid economy.
Comfort and Productivity:
  • Cab Design: Spacious and quiet, with efficient HVAC and customizable controls to reduce operator fatigue.
  • Lighting and Controls: High-intensity lights and joystick steering improve visibility and ease of operation.
Durability and Maintenance:
  • Axles and Drivetrain: Outboard-Extreme™ axles and a reliable drivetrain enhance durability and stability.
  • Maintenance Access: Easy access to filters and components, with extended service intervals to reduce downtime.
Technology Integration:
  • Precision Forestry Tools: TimberMatic™ Maps and TimberManager enhance jobsite visibility and efficiency.
  • JDLink™: Provides remote diagnostics and maintenance alerts to minimize downtime.
Specifications Overview: The document provides detailed specifications for various John Deere forestry machines, including models 640L-II, 648L-II, 748L-II, 768L-II, 848L-II, and 948L-II. Key specifications include dimensions, engine details, powertrain, hydraulics, and additional features.
Engine Specifications: All models are equipped with John Deere PowerTech™ engines with a displacement of 9.0 L, meeting EPA Final Tier 4 and EU Stage V emission standards. The engines deliver a gross power output of 210 kW (281 hp) at 1,800 rpm, with a gross torque of 1276 Nm (941 ft.-lb.) at 1,400 rpm.
Powertrain and Transmission: The machines feature a CVT with six speed-range configurations. Maximum travel speed varies by model, with the 768L-II reaching up to 17.97 km/h (11.16 mph) and the 848L-II/948L-II up to 25.0 km/h (15.53 mph).
Hydraulics and Electrical System: The hydraulic system includes an open circuit, axial piston, variable displacement main pump with a maximum displacement of 85 cc/rev. The electrical system operates at 24 volts with two 12-volt batteries, each with a capacity of 950 CCA.
Dimensions and Capacities: Dimensions vary across models, with overall lengths ranging from 7591 mm (298.9 in.) to 9075.3 mm (357.2 in.). Fuel tank capacities range from 352.0 L (93.0 gal.) to 496.6 L (131.2 gal.), and hydraulic reservoir capacities are 123.6 L (32.6 gal.).
Dual-Function Grapples: The grapples have varying opening sizes and areas, with standard openings up to 3886 mm (153 in.) and areas up to 2.07 m2 (22.3 sq. ft.). Control is managed via joystick.
Winch Specifications: Winches are hydraulically driven with joystick control, offering different cable capacities and line pull strengths. The 2-Speed 6000 Winch and 2-Speed 4000 Winch provide varying line speeds and pull capacities.
Additional Features: Machines are equipped with features like hydraulic-locking differentials, fully hydraulic steering, and wet-disc service brakes. Optional lights and dual-function grapples enhance functionality.
Compliance and Availability: Some product options and accessories may not be available in all regions, and modifications may be required to meet local regulations.
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Catalog excerpts

L-II SERIES SKIDDERS-1

RELIABILITY MEETS SIMPLICITY

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L-II SERIES SKIDDERS-4

Our L-II Series Skidders reflect years of continual refinement based on invaluable input from loggers like you — the ones who live it every day. We took our most powerful, productive skidders ever, the L-Series, and incrementally enhanced performance and durability to push them to the next level. These upgrades resulted in over 1,600 component changes, including more robust electrical harnesses, fittings, hoses, cylinder guards, grapple-tong teeth, and more. We made subtle changes under the hood — for example, improving component placement and dramatically reducing the complexity of the electrical...

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L-II SERIES SKIDDERS-5

Simply more reliable. Incorporating a less complex, easier-to-maintain design, our L-II Series Skidders are well equipped to handle the toughest forest environments. Redesigned electrical and hydraulic systems Routing of the electrical and hydraulic systems has been simplified significantly, to improve reliability and ease maintenance. Wiring and hoses are better protected against wear and bending. Durable forestryproven electrical components help extend wear life. Ground-game changer For work in wet conditions and on steep slopes, the new 768L-II Bogie Skidder can turn the tide. Combining tenacious...

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STANDOUT FEATURE BEST OF BOTH WORLDS Continuously Variable Transmission (CVT). Loggers often wonder if the easy-to-use CVT transmission is a direct-drive or hydrostatic transmission. The answer? Without being either, CVT combines the efficiency of a direct-drive transmission with the smoothness and operating ease of a hydrostatic drive.

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More power to the ground Durable and fluid efficient CVT automatically senses the load, delivering more torque and tractive effort as needed to maintain the desired speed. Efficient CVT transmission keeps engine speed constant, reducing engine wear while providing excellent fluid economy. Proven components, simplified electronics, and internally routed hoses further bolster durability. No more shifting. Simply set the maximum speed and let the CVT do the rest. There’s no need to hunt for the correct gear, shortening the learning curve for new operators, while helping experienced pros maximize...

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L-II SERIES SKIDDERS-8

The real deal. L-II Series Skidders combine a range of grapple choices with serious power and stability — for the versatility and performance you need to give it your all. More grapple capacity Expanded grapple options — from the 17.5-square-foot grapple on the 648L-II up to a massive 22.3-square-foot capacity on the 768L-II and 948L-II — give you more flexibility to configure your skidder to best match the application. Tough grapples Grapples feature box-style tongs for maximum strength and harder wear surfaces for long life. Components are easy to access, simplifying servi

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Superb power and stability Independent axle-diff lock Combining impressive horsepower and power-to-weight ratio with a constant engine speed, L-II Series Skidders deliver superb responsiveness with maximum efficiency. Rock-solid stability provides excellent pulling power, especially when climbing hills, navigating adverse terrain, or hauling bigger payloads. On all models, engage the front and rear axles, or just the front or rear as needed, to maneuver over tough terrain.

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L-II SERIES SKIDDERS-10

MORE COMFORT EQUALS MORE PRODUCTIVITY Make a comfortable living. Designed by loggers for loggers, the quiet, spacious cab helps keep your operators more comfortable and productive — so you can boost your bottom line. Find your comfort zone Reduce neck strain Fatigue-beating creature comforts include a highly efficient HVAC system, operator-configurable controls, and plenty of storage space. Opt for a rotating high-back seat to improve rearward visibility to the grapple and minimize neck strain. Balanced stability The new 768L-II features balanced bogie axles that help reduce machine vibration...

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Tame the toughest woods. In the forest, you need uptime above all else. L-II Series Skidders keep going, even when the going gets tough. Our most rugged axles ever Trouble-free bushings and pins Outboard-Extreme™ axles are designed with larger components to deliver maximum jobsite durability, along with a heavier weight to boost machine stability. They’re standard on the 848L-II and 948L-II, optional on the 748L-II (not available on the 640L-II, 648L-II, and 768L-II). The 768L-II boasts balanced bogie axles for outstanding traction and flotation in wet and steep terrain. Straight bushings at...

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L-II SERIES SKIDDERS-12

EASY MAINTENANCE Minimize maintenance and expense Fuel-efficient hydraulic reversing fan Unlatch the large panels for fast, wide-open access to filters and critical components. Grease points for boom and arch are easily reached from ground level, while extended service intervals help to further simplify maintenance and reduce expense. Hydraulic-driven variable-speed fan runs only as needed, reducing fuel consumption and debris flow through the cooler cores. It’s programmable to reverse at periodic intervals to clear core-clogging buildup. Or it can be actuated at the push of a button if demanded...

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Get valuable insight with PRECISION FORESTRY TimberMatic™ Maps and TimberManager™ TimberMatic Maps and TimberManager are proven jobsite-mapping tools designed for full-tree logging operations. TimberMatic Maps enables enhanced visibility, allowing operators to review production values as well as see and create points of interest that can be shared in real time with other onsite team members. Staff not on the jobsite can also access any of this data through TimberManager, to optimize tasks and increase efficiency. With a JDLink subscription, alerts can be sent to your computer or mobile device...

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640L-II / 648L-II / 748L-II Engine Manufacturer / Model Off-Road Emission Standards Gross Power Gross Torque Number of Cylinders Valves per Cylinder Engine Displacement Engine Bore and Stroke Fuel System Aspiration Air Cleaner Engine Cold-Start System Cooling Cooling System Fan Drive Powertrain Transmission Speed Ranges, Forward and Reverse Maximum Travel Speed With 30.5-32 Tires Axles Front Axle Oscillation, Stop to Stop Options Differential (front and rear) Steering Articulation Angle Service Brakes Parking Brake Hydraulics Main Pump Maximum Displacement Electrical System Voltage Number of...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.