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844K Wheel Dozer

844K Wheel Dozer

Mobile. Agile. Versatile.

More Comfort ‚Äď More Performance ‚Äď More Versatility

  • IMPROVED EFFICIENCY

    Lock-up torque converter, combined with an on-demand cooling fan and advanced engine idle management, delivers a more smooth shift

  • ENHANCED MAINTENANCE

    Service access is conveniently located, helping to reduce maintenance time

  • ADDITIONAL SAFETY

    Grouped, ground level engine and machine controls allow for safe and easy daily maintenance

  • UP TO 18% LESS CO2 EMISSIONS

    The 844K emits up to 18% less CO2 than the previous 844H.

Engine

Bore 5.4 in
Displacement 1649.5 in³
Emissions U.S. EPA Tier 4 Final or Tier 2 Equivalent
Engine Model C27 Cat¬ģ
Gross Power 752 HP
Gross Power - ISO 14396 752 HP
Gross Power - SAE J1995 766 HP
Net Power - SAE J1349 699 HP
Net Power - SAE J1349 - High Ambient 648 HP
Net Power - SAE J1349 - Standard Ambient 699 HP
Peak Torque - Speed 2624 lb/ft
Rated Speed 1800 r/min
Stroke 6 in
Torque Rise 18 %

Weights

Operating Weight 165089 lb

Transmission

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
Transmission Type Cat Planetary Power Shift

Service Refill Capacities

Cooling System 54.9 gal (US)
Crankcase 20 gal (US)
Differential - Final Drives - Front 71.6 gal (US)
Differential - Final Drives - Rear 68.9 gal (US)
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)
Transmission 29.1 gal (US)

Cab

Air Conditioning Standard air conditioning system contains environmentally friendly R134a refrigerant
Cab - ROPS/FOPS (1) Cat cab with separate ROPS/FOPS is standard in North America, Europe and Japan.
Cab - ROPS/FOPS (2) SAE J11040 APR88, ISO 3471:2008, ISO 3471:1994
FOPS FOPS meets SAE J231 JAN81 and ISO 3449:1992 Level II criteria.
ROPS ROPS meets SAE J11040 APR88, ISO 3471:2008 and ISO 3471:1994 criteria.

Brakes

Brakes Meets ISO 3540:2011

Axles

Front Fixed
Oscillation Angle 8.5 ¬į
Rear Trunnion

Blade

Blade Capacity Range 15,9-30,7 m3 (20,7-40,2 yd.3)

Sound Performance - Standard

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

Sound Performance - Suppression

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

Hydraulic System - Lift/Tilt

Cylinder, Double Acting - Tilt and Tip, Bore and Stroke 210 mm √ó 188 mm (8.25 in √ó 7.4 in)
Cylinders, Double Acting - Lift, Bore and Stroke 133 mm √ó 1535 mm (5.25 in √ó 60.4 in)
Output at 2,000 rpm and 6900 kPa (1,000 psi) 82 gal/min
Relief Valve Setting - Bulldozer (Large Pump) 2700 psi
Relief Valve Setting - Tilt Cylinders (Small Pump) 2920 psi

Hydraulic System - Steering

Maximum Flow 94.3 gal/min
Minimum Turning Radius - Over Blade 34 ft
Relief Valve Setting 4500 psi
Steering System - Circuit Pilot, load sensing
Steering System - Pump Piston, variable displacement
Total Steering Angle 35 ¬į

Dimensions (Approximate)

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

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