New Cat D Series Mini Excavators

Caterpillar’s new D Series Mini Hydraulic Excavators – 301.7D, 302.2D and 302.4D – are described as powerful, versatile machines that work comfortably in confined spaces. With model configurations closely reflecting their 1.6 to 2.5tonne operating weights, the new machines are said to feature powerful hydraulics, a spacious operator environment and excellent service access. Compact in size, the 301.7D, 302.2D and 302.4D can be easily transported on a trailer, or in a pick-up truck. The 301.7D can be specifi
February 18, 2013 Read time: 2 mins
Cat’s 302.4D machine is among the company’s new D Series of mini hydraulic excavators
178 Caterpillar’s new D Series Mini Hydraulic Excavators – 301.7D, 302.2D and 302.4D – are described as powerful, versatile machines that work comfortably in confined spaces.

With model configurations closely reflecting their 1.6 to 2.5tonne operating weights, the new machines are said to feature powerful hydraulics, a spacious operator environment and excellent service access.

Compact in size, the 301.7D, 302.2D and 302.4D can be easily transported on a trailer, or in a pick-up truck.

The 301.7D can be specified with either a fixed or extending undercarriage. The 302.2D is fitted with an extending undercarriage as standard and delivers a greater dig depth and lifting performance. A longer dozer blade is optional on both the 301.7D and 302.2D.

In North America, the 302.4D is configured with brackets and relief valves for simple and cost effective mounting of a hydraulic thumb.

Enhancing overall capability, the dozer blade is said by Cat to simplify backfilling and clean-up chores. Additionally, a float function allows the blade to follow ground contours with no operator correction and make site clean-up quick and easy.

Sturdy hoisting brackets on the cab roof enable the easy and rapid relocation of the machine.

D-Series models are available with a canopy operator’s station that enables access from both sides of the machine, or with an optional enclosed cab providing premium standard features such as an efficient heater/defroster/ventilation system, as well as a retractable front window with a strut assisted linkage that can be easily stowed in the roof space. The spacious operator’s compartment is said by Cat to offer a comfortable suspension seat, retractable seat belts, adjustable wrist rests, and ample legroom.

Durable steel body panels are said to offer good resistance to damage, while hinged and removable panels provide easy access for both routine and deeper maintenance. Extended routine service intervals for D Series models are said to save time and reduce operating costs: oil-impregnated sintered-alloy bearings in the boom and digging-arm linkages require grease only at 500-hour intervals; engine oil changes are extended to 500 hours; and the hydraulic oil change interval is 3,000 hours. A Cat S.O.S fluid-sampling port for hydraulic oil allows accurate, periodic assessment of fluid condition during its life.
Maintenance

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