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834 Wheel Dozer
844 Wheel Dozer

Engine

Engine Model Cat® C18  Cat® C27 -
Net Power - SAE J1349:2011 496 hp - -
Rated Speed 1900 r/min 1800 r/min -
Peak Power Speed 1500 r/min - -
Gross Power - SAE J1995:2014 562 hp 766 hp -
Bore 5.7 in 5.4 in -
Stroke 7.2 in 6 in -
Displacement 1105 in³ 1649.5 in³ -
Peak Torque - 1,300 rpm 2092 lb/ft - -
Torque Rise 52 % 18 % -
Note (1) 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. - -
Note (2) The following engine configurations are available: – Meets U.S. EPA Tier 4 Final and EU Stage V emission standards. – Noncertified that emits equivalent to U.S. EPA Tier 3. - -
Net Power - SAE J1349:2011 - Standard Ambient - 699 hp -
Emissions - Option 2 - China Nonroad Stage III emissions standards, equivalent to U.S. EPA Tier 2 -
Engine Power - ISO 14396:2002 - 786 hp -
Net Power - SAE J1349:2011 - High Ambient - 648 hp -
Engine Power - ISO 14396: 2002 - 752 hp -
Peak Torque - Speed - 2624 lb/ft -
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. -

Operating Specifications

Operating Weight 105271 lb 165089 lb -
Blade Capacities 7.9 – 22.2 m3 (10.3 – 29.0 yd3) - -
Blade Capacity Range - 20.8 yd³ -

Transmission

Transmission Type Cat planetary power shift Cat Planetary Power Shift -
Forward - 1 4.2 mile/h - -
Forward - 2 7.2 mile/h - -
Forward - 3 12.6 mile/h - -
Forward - 4 22 mile/h - -
Reverse - 1 4.2 mile/h - -
Reverse - 2 7.6 mile/h - -
Reverse - 3 13.3 mile/h - -
Direct Drive - Forward 1 Lock-up disabled Lock-up disabled -
Direct Drive - Forward 2 7.7 mile/h 8.5 mile/h -
Direct Drive - Forward 3 13.7 mile/h 15.2 mile/h -
Direct Drive - Forward 4 23.9 mile/h - -
Direct Drive - Reverse 1 4.5 mile/h 5.4 mile/h -
Direct Drive - Reverse 2 8.1 mile/h 9.6 mile/h -
Direct Drive - Reverse 3 14.3 mile/h 16.4 mile/h -
Note Travel speeds based on 35/65-R33 tire Travel speeds based on 45/65-45 L-5 46 ply tires. -
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 -

Hydraulic System - Lift/Tilt

Lift/Tilt System - Circuit Pilot operated LS valve with EH - -
Lift/Tilt System Variable displacement piston - -
Maximum Flow at 1,900 rpm 153 gpm - -
Relief Valve Setting - Lift/Tilt 4641 psi - -
Cylinders, Double Acting - Lift, Bore and Stroke 139.75 mm × 1021 mm (5.5 in × 40.2 in) 133 mm × 1535 mm (5.25 in × 60.4 in) -
Cylinders, Double Acting - Left and Right Tilt, Bore and Stroke 140 mm × 230 mm (5.5 in × 9.1 in) - -
Pilot System Variable displacement piston - -
Pilot Maximum Flow 13.7 gpm - -
Pilot Relief Valve Setting 580 psi - -
Output at 2,000 rpm and 6900 kPa (1,000 psi) - 82 gpm -
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 -

Hydraulic System - Steering

Steering System - Circuit Pilot, load sensing Pilot, load sensing -
Steering System - Pump Piston, variable displacement Piston, variable displacement -
Maximum Flow 65.8 gpm 94.3 gpm -
Relief Valve Setting - Steering 3495 psi - -
Total Steering Angle 86 ° 35 ° -
Steering Cycle Times - High Idle 3.1 s - -
Steering Cycle Times - Low Idle 5.7 s - -
Minimum Turning Radius - Over Blade - 34 ft -
Relief Valve Setting - 4500 psi -

Service Refill Capacities

Fuel Tank 209.5 gal (US) - -
Cooling System 31.7 gal (US) 54.9 gal (US) -
Crankcase 15.9 gal (US) 20 gal (US) -
Diesel Exhaust Fluid Tank 8.7 gal (US) - -
Transmission 31.7 gal (US) 29.1 gal (US) -
Hydraulic System Factory Fill 63.4 gal (US) - -
Differential - Final Drives - Front 49.1 gal (US) 71.6 gal (US) -
Differential - Final Drives - Rear 49.1 gal (US) 68.9 gal (US) -
Hydraulic System - Tank Only 37 gal (US) - -
Note (1) All non-road Tier 4 Final/Stage V diesel engines are required to use: – ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: • 20% biodiesel FAME (fatty acid methyl este - -
Fuel Tank - Standard - 286.6 gal (US) -
Hydraulic System - Implement and Hydraulic Fan - 68.9 gal (US) -
Hydraulic System - Steering and Braking - 34.9 gal (US) -

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 or R1234yf. See the label or instruction manual for identification of the gas. - If equipped with R134a (Global Warming Potential = 1430), the system co -

Axles

Front Fixed Fixed -
Rear Trunnion Trunnion -
Oscillation Angle ±13° 8.5 ° -

Brakes

Brakes ISO 3450: 2011 Meets ISO 3540:2011 -

Sound Performance - Tier 4 Final / Stage V

Operator Sound Pressure Level (ISO 6396:2008) 72 dB(A) 72 dB(A) -
Machine Sound Power Level (ISO 6395:2008) 113 dB(A) 116 dB(A) -
Operator Sound Pressure Level (ISO 6396:2008)* 72 dB(A) 72 dB(A) -
Machine Sound Power Level (ISO 6395:2008)** 109 dB(A) - -
Note (1) * For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives” *Sound suppression equipped -
Note (2) ** European Union Directive “2000/14/EC” as amended by “2005/88/EC” and UK Noise Regulation 2001 No. 1701 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 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 conducted at 70 percent of the maximum engine cooling fan speed. -
Note (4) 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. 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 (5) 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. - -
Machine Sound Power Level (ISO 6395:2008)* - 114 dB(A) -

Sound Performance - Tier 3 / Stage IIIA

Operator Sound Pressure Level (ISO 6396:2008) 72 dB(A) - -
Machine Sound Power Level (ISO 6395:2008) 113 dB(A) - -
Operator Sound Pressure Level (ISO 6396:2008)* 72 dB(A) - -
Machine Sound Power Level (ISO 6395:2008)** 110 dB(A) - -
Note (1) * For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives” - -
Note (2) ** European Union Directive “2000/14/EC” as amended by “2005/88/EC” and UK Noise Regulation 2001 No. 1701 - -
Note (3) 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 (4) 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 (5) 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. - -

Dimensions

Height - Top of Exhaust Stack 15.9 ft - -
Height - Top of Air Cleaner 12.8 ft - -
Height - Top of Hood 10.9 ft - -
Ground Clearance - Bumper 3.1 ft - -
Centerline of Rear Axle to Edge of Bumper 10.5 ft - -
Wheel Base 14.9 ft - -
Length - Front of Tire 28.4 ft - -
Length - Straight Blade on Ground 32.6 ft - -
Length - Universal Blade on Ground 34.4 ft - -
Centerline of Front Axle to Hitch 7.5 ft - -
Ground Clearance 1.7 ft - -
Height - Top of Cab 13.7 ft - -

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 -

Dimensions (Approximate)

Height - Top of ROPS - 17.2 ft -
Height - Top of Exhaust Pipe - 16.6 ft -
Height - Top of Hood - 12.7 ft -
Ground Clearance - 2 ft -
Centerline of Front Axle to Hitch - 7.5 ft -
Centerline of Rear Axle to Edge of Bumper - 12.5 ft -
Wheel Base - 15.1 ft -
Length - With Blade on Ground - 36.5 ft -
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