The 822D feller buncher is designed for challenging thinning and final felling.
The main improvements include service access, operator ergonomics and hydraulic efficiency. The engine features a higher capacity cooling system and a new engine enclosure profile that improves right hand side visibility. Engine access has been made easy, because with the push of a button, the powered engine enclosure fully opens with side platforms for easy access to critical components including hydraulic filters, the swing gearbox, cooling system components and both sides of the engine. The redesign has allowed a larger standard fuel tank, increasing diesel capacity to 585 litres (155 US gal) and includes ground level refuelling.
The 822D features a new cab structure with narrower front posts and larger side windows. This improves visibility due to improved sight lines. The skylight has been replaced by a camera system, which provides the operator with a much wider field of view. The feller buncher is now standard equipped with LED lighting for good productivity in night shift operations. The cab interior is quieter and instrumentation has been placed to optimize ergonomics. The electronic control system interface includes an easy to use seven-inch colour touch screen for machine monitoring and function adjustment. There are also multiple mounting points for additional electronic devices including an auxiliary input port, Bluetooth® audio and hands free calling and two 12 VDC power outlets.
The tight-tuck boom geometry and near zero tail swing allows the 822D to operate in selective felling, thinning and clearfell. ER technology also increases production and conserves energy. The initial release of the feller buncher is to the North American market. The popular 822C series machine still remains available in non-Tier 4 markets. Source: http://www.tigercat.com/tigercat-releases-d-series-822-track-carrier/