Category : Wheel Dozers ➔ Manufacturer : Caterpillar ➔ Model : 844 ➔
The Caterpillar 844 Wheel Dozer is a powerful and efficient machine designed for tough earthmoving tasks. With a blade capacity of 20.8 cubic yards and a gross power of 620 horsepower, this wheel dozer is equipped to handle demanding jobs with ease. Meeting safety standards with features like ROPS/FOPS cab and sound performance levels, the Caterpillar 844 Wheel Dozer offers reliable performance and precision in various working conditions.
Axles
Caterpillar 844 Wheel Dozer Axles specifications
Front
Fixed
Maximum Single-Wheel Rise And Fall
22.50 in (57.15 cm)
Rear
Oscillating 11 degrees
Blade
Caterpillar 844 Wheel Dozer Blade specifications
Blade Capacity
20.8 cu yd
Blade Height
6.10 ft (1.86 m)
Blade Width
17.80 ft (5.43 m)
Brakes
Caterpillar 844 Wheel Dozer Brakes specifications
Brakes
Meets SAE/ISO 3450 1996.
Cab
Caterpillar 844 Wheel Dozer Cab specifications
Rops/Fops
Meets SAE and ISO standards.
Sound Performance Levels
Meets ANSI, SAE and ISO standards.
Dimensions
Caterpillar 844 Wheel Dozer Dimensions specifications
Ground Clearance
1.42 ft (0.43 m)
Height To Top Of Cab
16.48 ft (5.02 m)
Length With Blade On Ground
35.90 ft (10.94 m)
Wheelbase
15.10 ft (4.60 m)
Width Over Tires
14.34 ft (4.37 m)
Engine
Caterpillar 844 Wheel Dozer Engine specifications
Bore
5.40 in (13.72 cm)
Displacement
1,647.70 cu in (27,001.03 cu cm)
Engine Make
2236
Engine Model
Cat 3412E
Flywheel Power
620.00 hp (462.34 kw)
Flywheel Power - Caterpillar
625.00 hp (466.07 kw)
Flywheel Power - Din 70020
648 PS
Flywheel Power - Eec 80/1269
625.00 hp (466.07 kw)
Flywheel Power - Iso 9249
625.00 hp (466.07 kw)
Flywheel Power - Sae J1349 (Jan90)
618.00 hp (460.85 kw)
Net Power
620.00 hp (462.34 kw)
Number Of Cylinders
12
Power Measured @
2000 rpm
Stroke
6.00 in (15.24 cm)
Hydraulic System
Caterpillar 844 Wheel Dozer Hydraulic System specifications
Cylinder, Double Acting - Tilt And Tip, Bore And Stroke
209.5 mm x 188 mm 8.25 in x 7.5 in
Output At 2,126 Rpm And 6894 Kpa (1,000 Psi)
89.00 gpm (336.87 lpm)
Relief Valve Setting - Bulldozer (Large Pump)
2700 psi
Relief Valve Setting - Tilt Cylinders (Small Pump)
2920 psi
Operating Specifications
Caterpillar 844 Wheel Dozer Operating Specifications specifications
Blade Capacities
15.9 to 30.7 m3 20.7 to 40.2 yd3
Ground Clearance
1.56 ft (0.48 m)
Operational
Caterpillar 844 Wheel Dozer Operational specifications
Fuel Capacity
212.20 gal (803.18 l)
Operating Weight
155,117.30 lbs (70,347.98 kg)
Tire Size
45/65-R39 PR
Service Refill Capacities
Caterpillar 844 Wheel Dozer Service Refill Capacities specifications
Cooling System
50.20 gal (190.01 l)
Crankcase
25.00 gal (94.63 l)
Differential - Final Drives - Front
71.60 gal (271.01 l)
Differential - Final Drives - Rear
68.90 gal (260.79 l)
Fuel Tank - Standard
260.00 gal (984.10 l)
Hydraulic System - Implement And Brakes - Tank Only
45.00 gal (170.33 l)
Hydraulic System - Steering And Engine Cooling Fan - Tank Only
34.90 gal (132.10 l)
Hydraulic Tank
141.00 gal (533.69 l)
Transmission
29.00 gal (109.77 l)
Steering
Caterpillar 844 Wheel Dozer Steering specifications
Hydraulic Output At 2128 Rpm And 1000 Psi (6900 Kpa)
108.00 gpm (408.78 lpm)
Minimum Turning Radius - Over Tires
390.00 in (990.60 cm)
Relief Valve Setting
4500 psi
Steering Angle
35 degrees
Tires
Caterpillar 844 Wheel Dozer Tires specifications
Standard Tire Size
Two choices available.
Tire Choices
Two choices available.
Transmission
Caterpillar 844 Wheel Dozer Transmission specifications
Converter Drive - Forward 1
4.40 mph (7.08 kph)
Converter Drive - Forward 2
7.60 mph (12.23 kph)
Converter Drive - Forward 3
13.00 mph (20.92 kph)
Converter Drive - Reverse 1
4.80 mph (7.72 kph)
Converter Drive - Reverse 2
8.40 mph (13.52 kph)
Converter Drive - Reverse 3
14.30 mph (23.01 kph)
Direct Drive - Forward 1
4.5 mile/h
Direct Drive - Forward 2
7.90 mph (12.71 kph)
Direct Drive - Forward 3
14.00 mph (22.53 kph)
Direct Drive - Reverse 1
4.90 mph (7.89 kph)
Direct Drive - Reverse 2
8.80 mph (14.16 kph)
Direct Drive - Reverse 3
15.40 mph (24.78 kph)
Max Speed - Forward
13.10 mph (21.08 kph)
Max Speed - Reverse
14.30 mph (23.01 kph)
Number Of Forward Gears
3
Number Of Forward Speeds
3
Number Of Reverse Gears
3
Number Of Reverse Speeds
3
Weights
Caterpillar 844 Wheel Dozer Weights specifications
Operating Weight
156,120.00 lbs (70,802.72 kg)
