DEERE 640L-II Skidder Skidders

Uptime

Simplified routing of the electrical and hydraulic systems improves reliability and eases service. Wiring and hoses are placed for protection against wear and damaging bends.

Continuously Variable Transmission

The easy-to-use CVT transmission automatically senses the load and delivers more torque and tractive effort as needed to maintain the desired speed.

New Steering Sensors

New steering sensors control articulation speed when nearing frame-to-frame contact, cushioning impact during full articulation and improving operator comfort.

Productivity

Productive new two-speed 4000 Winch delivers internal gear-ratio changes and line speeds similar to the two-speed 6000 Winch.

Fuel Consumption

Exceptionally low diesel exhaust fluid (DEF) consumption rate reduces the need for DEF compared to some other EPA Final Tier 4/EU Stage V systems.

DRIVELINE

Engine Manufacturer	John Deere
Engine Model	PowerTech PSS 6.8L
Displacement, ltr (Inches³)	6.8 (415)
Engine Output, kW (hp)	177 (237)
Engine Torque, Nm (lbf / ft)	1025 (756)
Transmission	Continuous Variable Transmission
Planetaries	Inboard
Service Brake Type	Inboard Wet discs
Parking Brake Type	Wet multi-disc in Transmission

DIMENSIONS

Overall Length, mm (inches)	7591 (298.9)
Height Over Cab, mm (inches)	3365 (132.5)
Overall Width, mm (inches)	3233 (127.3)
Wheelbase, mm (inches)	3680 (144.8)
Dozer Blade Height, mm (inches)	687.6 (27.1)
Ground Clearance, mm (inches)	555 (21.8)
Dozer Blade Width, mm (inches)	2192 (86.3)
Dozer Blade - Dig Depth, mm (inches)	359 (14.1)
Steering Articulation Angle, ± °	45

CAPACITIES

Fuel Tank, ltr (gallons (US))	342.2 (90.4)
Hydraulic Tank, ltr (gallons (US))	123.6 (32.6)
Alternator Output, Amp	150

PERFORMANCE

Travel Speed, kph (mph)	24.74 (15.37)
Oscillation Point	Front axle
Oscillation Angle, ± °	15
Rated Line Pull, kN (lbf)	221 (49696)
Rated Line Speed, m/min (ft/min)	27.4 (90)
System Voltage, V	24
Pump	Var. piston

WEIGHTS

Operating Weight, kg (lbs)	16686 (36787)