It has been many years since I operated a dozer, the last time probably being back in 1974 when as a 13 year old boy I used to spend weekends working on a tip operating a Caterpillar D6C! I was impressed by the level of comfort offered to operators on these powerful machines today. Later on in the day I was given the opportunity to take to the controls myself. One can also see the improved steps and grab bars which further improve operator access, in addition the fitment of new work platforms with built in safety treads, make for safer servicing and cleaning of the all new single unit coolant radiator, hydraulic oil cooler and air to air after cooler as well as improving access for window cleaning and re-fuelling operations
In this photo we can see Cat’s demonstrator Andreas, pointing out the easy access to the battery disconnect point and engine shutdown switch, inside the panel one can also find optional lighting switches which facilitate easy and safe access/egress to and from the machine in dark conditions. Ground level service accessibility has become a top priority for many manufacturers these days, and as an operator I can really appreciate the benefits that ground level service centres can provide. The Cat Regeneration System is designed to work transparently, operating automatically without any interaction needed from the operator and regenerating when conditions are optimal.
However, if conditions are such that supplemental regeneration is needed, the Cat Regeneration System elevates exhaust gas temperatures to oxidize soot within the DPF. Under most operating conditions, engine exhaust is hot enough to oxidize soot within the filter through a passive regeneration process. It is designed to operate with little maintenance and little attention from the operator. The DPF removes particulate matter from the exhaust stream. The CEM, a compactly packaged after treatment unit, includes a Diesel Oxidation Catalyst (DOC) and a Diesel Particulate Filter (DPF). This process reduces cylinder temperatures and, consequently, lowers NOx formation. The Cat NOx-Reduction System continually diverts and cools a small volume of the engine exhaust gases and then returns the cooled gases to the combustion chamber. This engine blends an innovative intake-air-management system, using optimized turbo charging, with electronically controlled fuel-injection that precisely shapes each combustion cycle through multiple-injection fuel delivery. The D8T uses the Cat C15 Acert engine which meets the EU stage IIIB emissions standards, has a net power rating of 231kw/310hp. The new D8T is the latest model from this fine heritage, featuring a whole host of improvements and innovative designs to bring the customer more quality, productivity and performance, whilst lowering fuel consumption and reducing emissions. Best tractor company and forming what we all know today as the Caterpillar Tractor Company. The product was a revelation and helped the Holt Company to prosper, before eventually merging with the C. In 1904 Benjamin Holt tested the first steam driven track type tractor, and in 1906 the first production model was sold.
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