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    844 Wheel Dozer
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    814 Wheel Dozer
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    D9 Dozer
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    Engine
    Engine Model C27 Cat® - -
    Rated Speed 1800 r/min - -
    Gross Power - ISO 14396 752 HP - -
    Gross Power - SAE J1995 766 HP - -
    Net Power - SAE J1349 - Standard Ambient 699 HP - -
    Net Power - SAE J1349 - High Ambient 648 HP - -
    Bore 5.4 in - -
    Stroke 6 in - -
    Displacement 1649.5 in³ - -
    Peak Torque - Speed 2624 lb/ft - -
    Torque Rise 18 % - -
    Emissions U.S. EPA Tier 4 Final and EU Stage V or China Nonroad Stage III Emissions standards, equivalent to U.S. EPA Tier 2 - -

    Operating Specifications
    Operating Weight 165089 lb - -
    Blade Capacities 15.9 - 30.7 m3 (20.7 - 40.2 yd3) - -

    Transmission
    Transmission Type Cat Planetary Power Shift Cat Planetary Power Shift -
    Converter Drive - Forward 1 4.5 mile/h - -
    Converter Drive - Forward 2 8.3 mile/h - -
    Converter Drive - Forward 3 14.2 mile/h - -
    Converter Drive - Reverse 1 4.9 mile/h - -
    Converter Drive - Reverse 2 9.1 mile/h - -
    Converter Drive - Reverse 3 15.5 mile/h - -
    Direct Drive - Forward 1 Lock-up disabled - -
    Direct Drive - Forward 2 8.5 mile/h - -
    Direct Drive - Forward 3 15.2 mile/h - -
    Direct Drive - Reverse 1 5.4 mile/h - -
    Direct Drive - Reverse 2 9.6 mile/h - -
    Direct Drive - Reverse 3 16.4 mile/h - -
    Forward - 1 - 3.7 mile/h -
    Forward - 2 - 6.5 mile/h -
    Forward - 3 - 11.2 mile/h -
    Forward - 4 - 19.4 mile/h -
    Reverse - 1 - 4.2 mile/h -
    Reverse - 2 - 7.3 mile/h -
    Reverse - 3 - 12.8 mile/h -
    Reverse - 4 - 22.1 mile/h -
    1.0 Forward - - 2.2 mile/h
    2.0 Forward - - 3.9 mile/h
    3.0 Forward - - 6.8 mile/h
    1.0 Reverse - - 2.7 mile/h
    2.0 Reverse - - 4.8 mile/h
    3.0 Reverse - - 8.4 mile/h
    Type - - Planetary powershift

    Hydraulic System - Lift/Tilt
    Output at 2,000 rpm and 6900 kPa (1,000 psi) 82 gal/min - -
    Cylinders, Double Acting - Lift, Bore and Stroke 133 mm × 1535 mm (5.25 in × 60.4 in) 120 mm × 915 mm (4.7 in × 36.0 in) -
    Cylinder, Double Acting - Tilt and Tip, Bore and Stroke 210 mm × 188 mm (8.25 in × 7.4 in) - -
    Relief Valve Setting - Bulldozer (Large Pump) 2700 psi - -
    Relief Valve Setting - Tilt Cylinders (Small Pump) 2920 psi - -
    Lift/Tilt System - Circuit - Pilot operated LS valve with EH -
    Lift/Tilt System - Variable displacement piston -
    Maximum Flow at 2,200 rpm - 23.5 gal/min -
    Relief Valve Setting - Lift/Tilt - 3190 psi -
    Cylinders, Double Acting - Left and Right Tilt, Bore and Stroke - 101.6 mm × 234 mm (4.0 in × 9.2 in) -
    Pilot System - Open center, fixed displacement gear -
    Pilot Relief Valve Setting - 3046 psi -

    Hydraulic System - Steering
    Steering System - Circuit Pilot, load sensing Pilot, load sensing -
    Steering System - Pump Piston, variable displacement Variable displacement piston -
    Minimum Turning Radius - Over Blade 34 ft - -
    Total Steering Angle 35 ° 72° -
    Maximum Flow 94.3 gal/min - -
    Relief Valve Setting 4500 psi - -
    Maximum Flow at 2,200 rpm - 38.8 gal/min -
    Relief Valve Setting - Steering - 4003 psi -
    Steering Cycle Times - High Idle - 3 s -
    Steering Cycle Times - Low Idle - 8.2 s -

    Service Refill Capacities
    Fuel Tank - Standard 286.6 gal (US) - -
    Cooling System 54.9 gal (US) - -
    Crankcase 20 gal (US) - -
    Transmission 29.1 gal (US) 13.2 gal (US) -
    Differential - Final Drives - Front 71.6 gal (US) 17.2 gal (US) -
    Differential - Final Drives - Rear 68.9 gal (US) 17.2 gal (US) -
    Hydraulic System - Implement and Hydraulic Fan 68.9 gal (US) - -
    Hydraulic System - Steering and Braking 34.9 gal (US) - -
    Fuel Tank - 132.1 gal (US) -
    Diesel Exhaust Fluid Tank - 4.2 gal (US) -
    Cooling Systems - Tier 4 Final/EU Stage V - 21.4 gal (US) -
    Cooling Systems - Brazil MAR-1 and China NonroadStage III, equivalent to Tier 3/EU Stage IIIA - 19.3 gal (US) -
    Engine Crankcase - 5.3 gal (US) -
    Hydraulic System - Implement/Steering - 34.1 gal (US) -
    Hydraulic Tank Only - 19.8 gal (US) -

    Air Conditioning System
    Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.8 kg of refrigerant which has a CO2 equivalent of 2.574 metric tonnes. - The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430) the system contains 2.1 kg of refrigerant which has a CO2 equivalent of 3.003 metric tonnes.

    Axles
    Front Fixed Planetary – Fixed -
    Rear Trunnion Planetary – Oscillating -
    Oscillation Angle 8.5 ° ±10° -

    Brakes
    Brakes Meets ISO 3540:2011 - -

    Sound Performance - Standard
    Operator Sound Level (ISO 6396:2008) 69 dB(A) - -
    Machine Sound Level (ISO 6395:2008) 115 dB(A) - -

    Sound Performance - Suppression
    Operator Sound Level (ISO 6396:2008) 69 dB(A) - -
    Machine Sound Level (ISO 6395:2008) 113 dB(A) - -

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

    Dimensions (Approximate)
    Height - Top of ROPS 17.2 ft - -
    Height - Top of Exhaust Pipe 16.6 ft 11.3 ft -
    Height - Top of Hood 12.7 ft 8.7 ft -
    Ground Clearance 2 ft - -
    Centerline of Front Axle to Hitch 7.5 ft 5.5 ft -
    Centerline of Rear Axle to Edge of Bumper 12.5 ft - -
    Wheel Base 15.1 ft 11 ft -
    Length - With Blade on Ground 36.5 ft - -
    Height to Top of Beacon - 13.1 ft -
    Height - Top of Cab - 12.1 ft -
    Height to Top of Radiator Guard - 8 ft -
    Ground Clearance to Hitch - 1.4 ft -
    Ground Clearance to Transmission Guard - 1.4 ft -
    Ground Clearance to Bottom of Bumper - 2.3 ft -
    Centerline of Rear Axle to Bumper - 6.5 ft -
    Width over Platform - 10.3 ft -
    Overall Length to Front Tire - 21 ft -
    Overall Machine Length with Straight Blade - 23.6 ft -
    Overall Machine Length with Coal Blade - 25.5 ft -
    Ground Clearance* - - 18.1 in
    Track Gauge - - 88.6 in
    Width - Without Trunnions - Standard Shoe - - 113 in
    Width - Over Trunnions - - 130.3 in
    Height - FOPS Cab* - - 150.4 in
    Height - Top of Stack* - - 152.6 in
    Height - ROPS/Canopy* - - 157.5 in
    Drawbar Height (Center of Clevis)* - - 30 in
    Length - Track on Ground - - 136.6 in
    Overall Length - Basic Tractor - - 193.3 in
    Length - Basic Tractor - With Drawbar - - 206.4 in
    Length - Basic Tractor - With Winch - - 218.3 in
    Length - With SU-Blade** - - 259.9 in
    Length - With U-Blade - - 274.3 in
    Length - With Single-Shank Ripper - - 257 in
    Length - With Multi-Shank Ripper - - 257.4 in
    Overall Length - SU-Blade/SS Ripper - - 323.6 in
    Note (1) - - *Includes grouser height for total dimensions on hard surfaces.

    Engine - Tier 4 Final/EU Stage V
    Engine Model - Cat C7.1 -
    Net Power (SAE J1349:2011) - 249 HP -
    Net Power (ISO 9249:2007) - 249 HP -
    Emissions - U.S. EPA Tier 4 Final/EU Stage V -
    Rated Speed - 2200 r/min -
    Gross Power (SAE J1995:2014) - 284 HP -
    Engine Power (ISO 14396:2002) - 275 HP -
    Peak Torque - 1,400 rpm - 902 lb/ft -
    Torque Rise - 52% -
    Bore - 4.1 in -
    Stroke - 5.3 in -
    Displacement - 427.8 in³ -
    High Idle Speed - 2270 r/min -
    Low Idle Speed - 800 r/min -
    Maximum Altitude without Derating - 9842.5 ft -
    Note - Net power advertised is the power available at the engine flywheel when the engine is equipped with a fan, air cleaner, clean emissions module and alternator. -

    Operating Specifications - Tier 4 Final/EU Stage V
    Operating Weight - 48526 lb -

    Scoops
    Chip Scoop Doze Capacity - 37.9 yd³ -
    Chip Scoop Carry Capacity - 19 yd³ -

    Engine - Brazil Mar-1 and China Nonroad Stage III, Equivalent to Tier 3/EU Stage IIIA
    Engine Model - Cat C7.1 -
    Emissions - Brazil MAR-1 and China Nonroad Stage III, equivalent to Tier 3/EU Stage IIIA -
    Rated Speed - 2200 r/min -
    Net Power (SAE J1349:2011) - 249 HP -
    Gross Power (SAE J1995:2014) - 286 HP -
    Engine Power (ISO 14396:2002) - 275 HP -
    Peak Torque - 1,400 rpm - 749 lb/ft -
    Torque Rise - 26% -
    Bore - 4.1 in -
    Stroke - 5.3 in -
    Displacement - 427.8 in³ -
    High Idle Speed - 2270 r/min -

    Operating Specifications - Brazil Mar-1 and China Nonroad Stage III, Equivalent to Tier 3/EU Stage IIIA
    Operating Weight - 47887 lb -

    Operating Specifications - Tier 4 Final/EU Stage V - Scoop
    Operating Weight - 52280 lb -

    Operating Specifications - Brazil Mar-1 and China Nonroad Stage III, Equivalent to Tier 3/EU Stage IIIA - Scoop
    Operating Weight - 51639 lb -

    Braking System
    Service Brakes - Single Disc Wet (enclosed) 4 WHL -
    Parking Brake - Drum and Shoe, Spring Applied, Hydraulic Released -

    Sound Performance - Tier 4 Final/EU Stage V - Standard
    Operator Sound Level (ISO 6396) - 70 dB(A) -
    Machine Sound Level (ISO 6395) - 111 dB(A) -
    Note (1) - The operator sound pressure level was measured according to the test procedures and conditions specified in ISO 6396:2008. The measurement was conducted at the maximum engine cooling fan speed. -
    Note (2) - 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. -
    Note (3) - The machine sound power level was measured according to the test procedures and conditions specified in ISO 6395:2008. The measurement was conducted at the maximum engine cooling fan speed. -
    Note (4) - The operator sound pressure level uncertainty is ± 2 dB(A) -

    Sound Performance - Tier 4 Final/EU Stage V - Suppression
    Operator Sound Level (ISO 6396) - 70 dB(A) -
    Machine Sound Level (ISO 6395) - 109 dB(A) -
    Note (1) - The operator sound pressure level was measured according to the test procedures and conditions specified in ISO 6396:2008. The measurement was conducted at the maximum engine cooling fan speed. -
    Note (2) - 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. -
    Note (3) - The machine sound power level was measured according to the test procedures and conditions specified in ISO 6395:2008. The measurement was conducted at the maximum engine cooling fan speed. -
    Note (4) - The operator sound pressure level uncertainty is ± 2 dB(A). -

    Sound Performance - Brazil Mar-1 and China Nonroad Stage III, Equivalent to Tier 3/EU Stage IIIA - Standard
    Operator Sound Level (ISO 6396) - 70 dB(A) -
    Machine Sound Level (ISO 6395) - 112 dB(A) -
    Note (1) - The operator sound pressure level was measured according to the test procedures and conditions specified in ISO 6396:2008. The measurement was conducted at the maximum engine cooling fan speed. -
    Note (2) - 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. -
    Note (3) - The machine sound power level was measured according to the test procedures and conditions specified in ISO 6395:2008. The measurement was conducted at the maximum engine cooling fan speed. -
    Note (4) - The operator sound pressure level uncertainty is ± 2 dB(A). -

    Sound Performance - Brazil Mar-1 and China Nonroad Stage III, Equivalent to Tier 3/EU Stage IIIA - Suppression
    Operator Sound Level (ISO 6396) - 70 dB(A) -
    Machine Sound Level (ISO 6395) - 110 dB(A) -
    Note (1) - The operator sound pressure level was measured according to the test procedures and conditions specified in ISO 6396:2008. The measurement was conducted at the maximum engine cooling fan speed. -
    Note (2) - 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. -
    Note (3) - The machine sound power level was measured according to the test procedures and conditions specified in ISO 6395:2008. The measurement was conducted at the maximum engine cooling fan speed. -
    Note (4) - The operator sound pressure level uncertainty is ± 2 dB(A). -

    Engine - U.S. EPA Tier 2/3 Equivalent
    Engine Model - - Cat® C18
    Engine Power - Net SAE J1349/ISO 9249 - - 452 HP
    Bore - - 5.7 in³
    Stroke - - 7.2 in
    Displacement - - 1106 in³
    Engine Power - Gross SAE J1995 - - 487 HP
    Engine Power - ISO 14396 - - 479 HP
    Emissions - - U.S. EPA Tier 2 or Tier 3 equivalent
    Note (1) - - All engine ratings apply at 1,750 rpm.
    Note (2) - - No derating required up to 4267 m (14,000 ft) altitude.

    Weights
    Operating Weight - - 110225 lb
    Shipping Weight - - 84373 lb
    Note (1) - - D9 Operation Weight includes hydraulic controls, blade tilt cylinder, coolant, lubricants, full fuel tank, ROPS, FOPS cab, SU Blade, Single-Shank Ripper, 610 mm (24 in) ES shoes and operator.
    Note (2) - - D9 Operation Weight includes base machine chassis with cab, pivot shaft, roller frames, track and ROPS.

    Undercarriage
    Shoe Type - - Extreme Service
    Width - Shoe - - 24 in
    Shoes/Side - - 43
    Grouser Height - - 3.3 in
    Pitch - - 9.4 in
    Ground Clearance - - 18.1 in
    Track Gauge - - 88.6 in
    Length - Track on Ground - - 136.6 in
    Ground Contact Area - - 45.6 ft²
    Track Rollers/Side - - 8
    Number of Carrier Rollers - - 1 per side (optional)

    Standards
    ROPS - - Rollover Protective Structure (ROPS) meets the following criteria ISO 3471:2008.
    FOPS - - Falling Object Protective Structure (FOPS) meets the following criteria ISO 3449:2005 LEVEL II.
    Sound - - The average dynamic spectator sound power level when ISO 6395:2008 is used to measure the value for a machine is 116 dB(A). The measurement was conducted at 70% of the maximum engine cooling fan speed. The sound level may vary at different engine cooling
    Sound (1) - - The average dynamic operator sound pressure level when ISO 6396:2008 is used to measure the value for an enclosed cab is 78 dB(A). The measurement was conducted at 70% of the maximum engine cooling fan speed. The sound level may vary at different engine c
    Sound (2) - - Hearing protection may be needed when the machine is operated with an open operator station for extended periods, in a noisy environment, or with a cab that is not properly maintained.

    Steering and Brakes
    Steering Type - - Differential
    Brake Type - - Spring Applied Wet Disc
    Brake Diameter - - 15.5 in
    Brake Count - - 8

    Engine - U.S. EPA Tier 4 Final/EU Stage V
    Engine Model - - Cat® C18
    Bore - - 5.7 in³
    Stroke - - 7.2 in³
    Displacement - - 1106 in³
    Engine Power - Gross SAE J1995 - - 477 HP
    Engine Power - ISO 14396 - - 468 HP
    Engine Power - Net SAE J1349/ISO 9249 - - 440 HP
    Emissions - - U.S. EPA Tier 4 / EU Stage V
    Note (1) - - All Engine ratings apply at 1,750 rpm.
    Note (2) - - No derating required up to 2499 m (8,200 ft).

    FLUID CAPACITIES
    Fuel Tank (Splash Fill) - - 254 gal (US)
    DEF Tank (Tier 4 only) - - 9.5 gal (US)
    Fuel Tank (Fast Fill) - - 248 gal (US)
    Cooling System - - 21 gal (US)
    Engine Crankcase* - - 10 gal (US)
    Powertrain - - 40 gal (US)
    Final Drives (each) - - 4 gal (US)
    Roller Frames (each) - - 12 gal (US)
    Pivot Shaft Oil - - 8 gal (US)
    Hydraulic System Tank - - 24 gal (US)
    Note - - *With oil filters.
    Note 2 - - Biodiesel blends up to B20 (20% blend by volume) are acceptable when blended with 15 ppm (mg/kg) sulfur or less ULSD. B20 should meet ASTM D7467 specification (biodiesel blend stock should meet Cat biodiesel spec, ASTM D6751 or EN 14214). Cat DEO-ULSTM or
    Note 3 - - All non-road Tier 4 Final diesel engines are required to use only ultra-low sulfur diesel (ULSD) fuels containing 15 ppm (mg/kg) sulfur or less.
    Note 4 - - Diesel Exhaust Fluid (DEF) used in Cat Selective Catalytic Reduction (SCR) systems must meet the requirements outlined in the International Organization for Standardization (ISO) standard 22241.

    Hydraulic Controls
    Pump Type - - Piston-type geared to flywheel
    Pump Output - Steering - - 96 gal/min
    Fan Pump - - 21 gal/min
    Tilt Cylinder Flow - Rod End Flow - - 53 gal/min
    Tilt Cylinder Flow - Head End Flow - - 53 gal/min
    Lift Cylinder Relief Valve Setting - - 3800 lbf/in
    Tilt Cylinder Relief Valve Setting - - 2799 psi
    Ripper - Lift - Relief Valve Setting - - 3800 psi
    Ripper - Pitch - Relief Valve Setting - - 3800 psi
    Steering System - Pressure - - 5874 psi
    Tank Capacity - - 24 gal/min
    Note (1) - - Steering pump output measured at 1,750 engine rpm and 30 000 kPa (4,350 psi).
    Note (2) - - Implement pump output measured at 1,750 engine rpm and 20 000 kPa (2,900 psi).
    Note (3) - - Fan pump output measured at 1,750 engine rpm and 17 000 kPa (2,470 psi)

    Blade - Semi-Universal
    Blade Capacity (SAE J1265) - - 17.8 yd³
    Blade Width (over end bits) - - 171.3 in
    Blade Height - - 76.1 in
    Maximum Digging Depth - - 23.9 in
    Ground Clearance at Full Lift - - 56 in
    Maximum Tilt - - 37 in
    Blade Weight - - 10587 lb
    Total Operating Weight* (with blade and single-shank ripper) - - 110205 lb
    Note - - * Total Operating Weight includes: single tilt hydraulics, coolant, lubricants, full fuel tank, ROPS, FOPS cab, 610 mm (24 in) ES track shoes and the noted blade and ripper type.

    Blade - Universal
    Blade Capacity (SAE J1265) - - 21.7 yd³
    Blade Width (over end bits) - - 184.3 in
    Blade Height - - 76.1 in
    Maximum Digging Depth - - 23.9 in
    Ground Clearance at Full Lift - - 56 in
    Maximum Tilt - - 39.9 in
    Blade Weight - - 12016 lb
    Total Operating Weight* (with blade and single-shank ripper) - - 111362 lb
    Note - - *Total Operating Weight includes: single tilt hydraulics, coolant, lubricants, full fuel tank, ROPS, FOPS cab, 610 mm (24 in) ES track shoes and the noted blade and ripper type.

    Ripper - Single Shank
    Maximum penetration force * (shank vertical) - - 35520 lbf
    Maximum penetration depth (standard tip) - - 48.5 in
    Pryout Force - - 74637 lbf
    Maximum Clearance Raised - Under Tip, Pinned in Bottom Hole - - 34.7 in
    Number of Pockets - - 1
    Weight - - 10701 lb
    Total Operating Weight* (with SU Blade and noted ripper) - - 110205 lb
    Note - - *Total Operating Weight includes: single tilt hydraulics, coolant, lubricants, full fuel tank, ROPS, FOPS cab, 610 mm (24 in) ES track shoes and the noted blade and ripper type.

    Ripper - Single Shank, Deep Ripping
    Maximum penetration force * (shank vertical) - - 38667 lbf
    Maximum penetration depth (standard tip) - - 68 in
    Pryout Force - - 74412 lbf
    Maximum Clearance Raised - Under Tip, Pinned in Bottom Hole - - 32.2 in
    Number of Pockets - - 1
    Weight - - 10981 lb
    Total Operating Weight* (with SU Blade and noted ripper) - - 110485 lb
    Note - - *Total Operating Weight includes: single tilt hydraulics, coolant, lubricants, full fuel tank, ROPS, FOPS cab, 610 mm (24 in) ES track shoes and the noted blade and ripper type.

    Ripper - Multi-Shank, Adjustable Parallelogram
    Maximum Penetration Force - Shank Vertical - - 34621 lbf
    Maximum Penetration - Standard Tip - - 31.4 in
    Pry-Out Force - Multi-Shank Ripper with One Tooth - - 81156 lbf
    Maximum Clearance Raised - Under Tip, Pinned in Bottom Hole - - 34.6 in
    Number of Pockets - - 3
    Weight - - 12136 lb
    Total Operating Weight* - With SU-Blade and Ripper - - 111739 lb
    Note - - * Total Operating Weight includes: single tilt hydraulics, coolant, lubricants, full fuel tank, ROPS, FOPS cab, 610 mm (24 in) ES track shoes and the noted blade and ripper type.

    Winches
    Winch Model - - PA 140VS
    Weight* - - 3950 lb
    Oil Capacity - - 4 gal (US)
    Drum Width - - 12.6 in
    Wire Cable Diameter - Recommended - - 1.13 in
    Wire Cable Diameter - Optional - - 1.25 ft
    Maximum Drum Capacity - Recommended Cable Length - - 257 in
    Maximum Drum Capacity - Optional Cable Length - - 204 ft
    Wire Cable Ferrule Size - Outside Diameter - - 2.4 in
    Wire Cable Ferrule Size - Length - - 2.8 in
    Note - - *Weight shown is base winch only. Does not include mounting arrangement, control arrangement, oil, or wire rope. With counterweight: 3700 kg (8,150 lb).
    Note (2) - - Variable speed, hydraulically driven, dual braking system, three-roller fairlead.
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