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  • Make and Model
    Kohler CH640 Kohler CH640
  • Fuel Tank
    2.5 gal 9.5 L
  • Attachment Pump Relief Pressure (Trencher/Forward)
    2500 psi 172.4 bar
  • Length (Tractor with Tires)
    83 in 210.8 cm
  • Hydraulic Tank
    10.8 gal 40.7 L
  • Ground Drive Pump Relief Pressure Forward/Reverse
    2400 psi 165.5 bar
  • Hydraulic System
    11.3 gal 42.6 L
  • Ground Drive Pump gpm at Maximum Engine RPM
    5.4 gpm 20.4 L/min
  • Fuel Type
    Gasoline Gasoline
  • Engine Oil
    .5 gal 1.9 L
  • Hydraulic Supply Filter Rating
    100 mesh strainer 100 mesh strainer
  • Attachment Pump gpm at Maximum Engine RPM
    10.3 gpm 39 L/min
  • Horsepower at Maximum RPM (Gross)
    20.5 hp 15.3 kw
  • Hydraulic Return Filter Rating
    3 micron 3 micron
  • Displacement
    41.1 cu-in .7 L
  • Width (Over Rubber Tracks)
    35 in 88.9 cm
  • Width (Over Rubber Tires)
    35 in 88.9 cm
  • Cooling Medium
    Forced air Forced air
  • Maximum Operating Angle (Fore/Aft)*
    25 deg 25 deg
  • Maximum Operating Angle (Left/Right)*
    25 deg 25 deg
  • Aspiration
    Natural Natural
  • Height
    46 in 116.8 cm
  • Weight (Tractor with Tires)
    940 lbs 426.4 kg
  • Wheel Base From Centerline of Axles
    33.2 in 84.3 cm
  • Tread Width with Rubber Tires (Centerline to Centerline)
    8.5 in 21.6 cm
  • Ground Drive Type
    Hydrostatic Hydrostatic
  • Clutch Type
    none none
  • Maximum Forward Transport Speed at Full Throttle
    3.1 mph 5 km/h
  • Maximum Reverse Transport Speed at Full Throttle
    1 mph 1.6 km/h