To achieve the required conditions, exhaust temperature management (ETM) manages the initiation and duration of active filter cleaning. If conditions (temperature, load, or speed) for passive filter cleaning cannot be achieved, then PM is removed using active filter cleaner. NOTE: Passive filter cleaning requires no operator involvement, and there is no interruption to tractor operation. No tractor icons or symbols appear on the display during passive filter cleaning. This automatic process occurs continuously during normal operating conditions.

Passive filter cleaning occurs naturally when the engine is generating enough heat to oxidize particulate matter. There are three different types of filter cleaning processes:

Once one of the three conditions has been met, filter cleaning will occur. A particulate matter buildup estimation based on load conditions.A prescribed time-based estimation of needed filter cleaning.Filter cleaning is determined by one of three conditions: NOTE: *As compared to engines not using CRS technology.ĭepending on the load that the tractor is under, as well as ambient temperature, humidity, and engine speed, the DPF may build up with particulate matter, thus requiring cleaning. In this cleaning cycle, the exhaust gas temperature is raised by injecting additional fuel during the exhaust stroke of normal vehicle operation to the diesel oxidation catalyst (DOC).Īfter many hours of use, the exhaust filter may require an ash removal service. In situations of low temperature, engine speed or load factor, an active cleaning cycle is initiated. Using a natural cleaning process, most of the PM trapped in the exhaust filter is eliminated by the heat of the exhaust stream generated by normal use. The exhaust filter consists of a diesel particulate filter (DPF) which captures particulate matter (PM) contained in the exhaust gas. The new engine comes with an after treatment system. It continuously monitors engine conditions and adjusts the fuel delivery accordingly to ensure optimum performance and emissions. The electronic control unit (ECU) provides optimum fuel control and accuracy. It results in improved fuel economy and lower cost of operation. High pressure injection atomizes fuel into finer particles which burn more completely. The common rail system (CRS) optimizes fuel economy and reduces operating costs*. The engine uses latest technologies to optimize fuel economy, improve control and accuracy, and reduces environmental impact. The 1.496-L, turbocharged, intercooled 3TNV86CHT CR Yanmar diesel engine provides 44.7 hp to the 3046R Tractor. The 1.496-L, turbocharged, 3TNV86CT CR Yanmar diesel engine provides 38.2 hp to the 3039R Tractor.

Kubota rear fender extension