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    844 Wheel Dozer
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    854 Wheel Dozer
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    Engine
    Engine Model Cat® C27 Cat C32B -
    Net Power - SAE J1349:2011 - Standard Ambient 699 hp - -
    Rated Speed 1800 r/min 1750 r/min -
    Emissions Option 2 - China Nonroad Stage III emissions standards, equivalent to U.S. EPA Tier 2 - -
    Engine Power - ISO 14396:2002 786 hp - -
    Gross Power - SAE J1995:2014 766 hp - -
    Net Power - SAE J1349:2011 - High Ambient 648 hp - -
    Engine Power - ISO 14396: 2002 752 hp - -
    Bore 5.4 in 5.7 in -
    Stroke 6 in 6.4 in -
    Displacement 1649.5 in³ 1958 in² -
    Peak Torque - Speed 2624 lb/ft - -
    Torque Rise 18 % 30 % -
    Note Net power advertised is the power available at the flywheel when the engine is equipped with fan at minimum speed, air intake system, exhaust system, and alternator. - -
    Emissions (U.S. EPA Tier 4 Final): Net Power ISO - 9249 - 814 hp -
    Emissions (U.S. EPA Tier 4 Final): Gross Power - SAE J1995 - 900 hp -
    Gross Power - 907 hp -
    Emissions (Tier 2 Equivalent): Gross Power - SAE J1995 - 907 hp -
    Emissions (Tier 2 Equivalent): Net Power ISO - 9249 - 823 hp -
    Peak Torque - 1,200 rpm - 3139 lb/ft -
    Note (1) - Net power advertised is the power available at the flywheel when the engine is equipped with fan, air cleaner, muffler and alternator. -
    Note (2) - Net torque rise meets SAE J139. -
    Note (3) - No engine derating required up to 3050 m (10,000 ft) altitude. -

    Operating Specifications
    Operating Weight 165089 lb 224647 lb -
    Blade Capacity Range 20.8 yd³ - -

    Transmission
    Transmission Type Cat Planetary Power Shift Cat Planetary Power Shift -
    Converter Drive - Forward 1 4.5 mile/h 4.4 mile/h -
    Converter Drive - Forward 2 8.3 mile/h 7.7 mile/h -
    Converter Drive - Forward 3 14.2 mile/h 13.2 mile/h -
    Converter Drive - Reverse 1 4.9 mile/h 4.8 mile/h -
    Converter Drive - Reverse 2 9.1 mile/h 8.4 mile/h -
    Converter Drive - Reverse 3 15.5 mile/h 14.6 mile/h -
    Direct Drive - Forward 1 Lock-up disabled Lock-up disabled -
    Direct Drive - Forward 2 8.5 mile/h 8.1 mile/h -
    Direct Drive - Forward 3 15.2 mile/h 14.2 mile/h -
    Direct Drive - Reverse 1 5.4 mile/h 5 mile/h -
    Direct Drive - Reverse 2 9.6 mile/h 8.9 mile/h -
    Direct Drive - Reverse 3 16.4 mile/h 15.6 mile/h -
    Note Travel speeds based on 45/65-45 L-5 46 ply tires. Travel speeds based on 45/65-45 L-5 46 ply tires. -

    Hydraulic System - Lift/Tilt
    Output at 2,000 rpm and 6900 kPa (1,000 psi) 82 gpm - -
    Cylinders, Double Acting - Lift, Bore and Stroke 133 mm × 1535 mm (5.25 in × 60.4 in) 177 mm × 1760 mm (0.58 ft × 5.8 ft) -
    Cylinder, Double Acting - Tilt and Tip, Bore and Stroke 210 mm × 188 mm (8.25 in × 7.4 in) 267 mm × 286 mm (0.88 ft × 0.94 ft) -
    Relief Valve Setting - Bulldozer (Large Pump) 2700 psi - -
    Relief Valve Setting - Tilt Cylinders (Small Pump) 2920 psi - -
    Output at 1,850 rpm and 6900 kPa (1,000 psi) - 161 gal/min -

    Hydraulic System - Steering
    Steering System - Circuit Pilot, load sensing Pilot, load sensing -
    Steering System - Pump Piston, variable displacement Piston, variable displacement -
    Minimum Turning Radius - Over Blade 34 ft 31 ft -
    Total Steering Angle 35 ° 86 degrees -
    Maximum Flow 94.3 gpm - -
    Relief Valve Setting 4500 psi 5004 psi -

    Service Refill Capacities
    Fuel Tank - Standard 286.6 gal (US) 413 gal (US) -
    Cooling System 54.9 gal (US) 53 gal (US) -
    Crankcase 20 gal (US) 32 gal (US) -
    Transmission 29.1 gal (US) 45 gal (US) -
    Differential - Final Drives - Front 71.6 gal (US) 98 gal (US) -
    Differential - Final Drives - Rear 68.9 gal (US) 90 gal (US) -
    Hydraulic System - Implement and Hydraulic Fan 68.9 gal (US) - -
    Hydraulic System - Steering and Braking 34.9 gal (US) - -
    Hydraulic System - Steering and Engine Cooling Fan - Tank Only - 77 gal (US) -
    Note (1) - - All nonroad U.S. EPA Tier 4, European Union (EU) Stage IIIB and V, and Japan (MLIT) Step 4 diesel engines are required to use only Ultra Low Sulfer Diesel (ULSD) fuels containing 15 ppm (mg/kg) sulfer or less. Biodiesel blends up to B20 (20% blend by vo -

    Air Conditioning System
    Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. - If equipped with R134a (Global Warming Potential = 1430), the system co The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). See the label or instruction manual for identification of the gas. If equipped with 1234yf (Global Warming Potential = -

    Axles
    Front Fixed Fixed -
    Rear Trunnion Trunnion -
    Oscillation Angle 8.5 ° - -

    Brakes
    Brakes Meets ISO 3540:2011 Meets ISO 3540:2011 -

    Sound Performance - Tier 4 Final / Stage V
    Operator Sound Pressure Level (ISO 6396:2008) 72 dB(A) - -
    Machine Sound Power Level (ISO 6395:2008) 116 dB(A) - -
    Operator Sound Pressure Level (ISO 6396:2008)* 72 dB(A) - -
    Machine Sound Power Level (ISO 6395:2008)* 114 dB(A) - -
    Note (1) *Sound suppression equipped - -
    Note (2) The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. - -
    Note (3) The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. - -
    Note (4) Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment. - -

    Sound Performance - Tier 2
    Operator Sound Pressure Level (ISO 6396:2008) 72 dB(A) - -
    Machine Sound Power Level (ISO 6395:2008) 116 dB(A) - -
    Operator Sound Pressure Level (ISO 6396:2008)* 72 dB(A) - -
    Machine Sound Power Level (ISO 6395:2008)* 114 dB(A) - -
    Note (1) *Sound suppression equipped - -
    Note (2) The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. - -
    Note (3) The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. - -
    Note (4) Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment. - -

    Cab
    ROPS/FOPS ISO 3471:2008 and ISO 3449:2005 Level II Standards ISO 3471:2008 and ISO 3449:2005 Level II Standards -

    Dimensions (Approximate)
    Height - Top of ROPS 17.2 ft 18.25 ft -
    Height - Top of Exhaust Pipe 16.6 ft 17.17 ft -
    Height - Top of Hood 12.7 ft 13 ft -
    Ground Clearance 2 ft 27 in -
    Centerline of Front Axle to Hitch 7.5 ft 9.67 ft -
    Centerline of Rear Axle to Edge of Bumper 12.5 ft 13.75 ft -
    Wheel Base 15.1 ft 19.25 ft -
    Length - With Blade on Ground 36.5 ft 44 ft -

    Weights
    Operating Weight - 224647 lb -

    Blades
    Blade Capacities - 30.5 to 44.8 m3 (40 to 58.6 yd3) -

    Sound Performance Levels
    Sound Performance - • The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. • The operator sound pressure level was measured according to ISO 6396:2008. The measurement was -
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