B-Series crawler dozers provide improved cooling. Machines can operate in ambient temperatures 10 degrees hotter than previous models, due to improved performance out of the radiator, transmission cooler and hydraulic cooler. A new radiator grill and perforated engine side panels improve airflow. Cab improvements include climate control, air ride seats, and finger lever controls.
Number of models: 5
New models: LS150.B, LS180.B
Product-line features: B-Series powershift transmission features three speeds in both forward and reverse and two push-button automatic features—auto load and auto shift. Controls are built into fully adjustable armrests: pilot controls handle steering and transmission; pilot-operated joystick controls the blade.
Dressta
Geared Steering Puts Full Power at Tracks
Number of models: 10
New models: TD7H, TD9H, TD15H LA, TD20H LA, TD25H LA
Product-line features: Smaller dozers are available with torque converter powershift or direct-drive powershift drive trains. Medium and large dozers feature two-speed geared steering. Hexagonally shaped cab and suspended seat that can be angled 15 degrees have improved visibility; air conditioning, heating pressurization and filtration enhance operator comfort.
Caterpillar
Integrated Components Optimize Life
Number of models: 12
New models: D3, D4, and D5 G-Series; D5N; D6N
Product-line features: AccuGrade Laser Grade Control system is factory-installed on dozers less than 100 horsepower. Differential steering, available on some models, has a separate hydraulic pump that gives the operator plenty of flow for steering and using implements.
Komatsu America
Electronics Provide Speed Control
Number of models: 27
New models: D31-21, D37-21, D39-21, D65-15, D85-15. D61-15 to be introduced in the fall.
Product-line features: Hydrostatic steering system has a larger steering pump and motor capacity for minimum turning radius with greater steering forces. Palm-command control system allows control to both tracks and blade in direct proportion to control lever movement.
Liebherr
Maximum Load, Minimum Fuel
Number of models: 5
New models: PR734
Product-line features: The superior climbing ability offered by hydrostatics, coupled with a low center of gravity, give these machines stable performance even in extreme terrain. An electronic engine speed sensing control protects drive components from overload without compromising performance.
John Deere
Power Management Delivers Efficiency
Number of models: 8
New models: 750C and 850C Series II, 950C
Product-line features: Wet-sleeve engines provide maximum life. The same multi-viscosity engine oil is used in the engine and hydrostatic drive to reduce customer cost. The same style power-train design is used in all models, so fleets can develop operators more readily, enabling them to move easily from one Deere dozer to another.
Case
Larger Pumps Power Tracks
Number of models: 7
New models: 650K, 750K, 850K
Product-line features: With a larger-diameter sprocket, two additional teeth have been added to extend undercarriage life. The operator platform is isolation-mounted from the main frame to cushion against noise and vibration. Visibility has been increased with a direct line of sight to the back of the blade.
Buying File Feature: Environment Drives Dozer Design