Caterpillar 844 Wheel Dozer
Units
Dimensions
Dimensions
A
Length With Blade On Ground
35.9ft in
B
Width Over Tires
14.34ft in
E
Ground Clearance
1.42ft in
C
Height To Top Of Cab
16.48ft in
D
Wheelbase
15.1ft in
Operating Specifications
E
Ground Clearance
1.56ft in
Blade Capacities
15.9 to 30.7 m3 20.7 to 40.2 yd3
Specifications
Engine
Number Of Cylinders
12
Engine Make
2236
Engine Model
3142E DITA ATAAC
Net Power
620hp
Power Measured @
2000rpm
Displacement
1647.7cu in
Bore
5.4in
Stroke
6in
Engine Model
Cat 3412E
Flywheel Power
620hp
Flywheel Power - Din 70020
648 PS
Flywheel Power - Caterpillar
625hp
Flywheel Power - Eec 80/1269
625hp
Flywheel Power - Iso 9249
625hp
Flywheel Power - Sae J1349 (Jan90)
618hp
Operational
Operating Weight
155117.3lb
Fuel Capacity
212.2gal
Tire Size
45/65-R39 PR
Transmission
Number Of Forward Gears
3
Number Of Reverse Gears
3
Max Speed - Forward
13.1mph
Max Speed - Reverse
14.3mph
Steering
Steering Angle
35degrees
Transmission
Direct Drive - Forward 3
14mph
Direct Drive - Reverse 3
15.4mph
Direct Drive - Forward 2
7.9mph
Direct Drive - Reverse 2
8.8mph
Converter Drive - Forward 3
13mph
Converter Drive - Reverse 3
14.3mph
Direct Drive - Forward 1
4.5 mile/h
Converter Drive - Forward 1
4.4mph
Converter Drive - Forward 2
7.6mph
Direct Drive - Reverse 1
4.9mph
Converter Drive - Reverse 1
4.8mph
Converter Drive - Reverse 2
8.4mph
Steering
Relief Valve Setting
4500 psi
Minimum Turning Radius - Over Tires
390in
Transmission
Number Of Forward Speeds
3
Number Of Reverse Speeds
3
Steering
Hydraulic Output At 2128 Rpm And 1000 Psi (6900 Kpa)
108 gal/min
Weights
Operating Weight
156120lb
Tires
Standard Tire Size
Two choices available.
Tire Choices
Two choices available.
Blade
Blade Capacity
20.8yd3
Blade Width
17.8ft in
Blade Height
6.1ft in
Axles
Front
Fixed
Rear
Oscillating 11 degrees
Maximum Single-Wheel Rise And Fall
22.5in
Hydraulic System
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 gal/min
Relief Valve Setting - Bulldozer (Large Pump)
2700 psi
Relief Valve Setting - Tilt Cylinders (Small Pump)
2920 psi
Brakes
Brakes
Meets SAE/ISO 3450 1996.
Service Refill Capacities
Cooling System
50.2gal
Crankcase
25gal
Hydraulic Tank
141gal
Fuel Tank - Standard
260gal
Transmission
29gal
Differential - Final Drives - Front
71.6gal
Differential - Final Drives - Rear
68.9gal
Hydraulic System - Implement And Brakes - Tank Only
45gal
Hydraulic System - Steering And Engine Cooling Fan - Tank Only
34.9gal
Cab
Rops/Fops
Meets SAE and ISO standards.
Sound Performance Levels
Meets ANSI, SAE and ISO standards.
