Bobcat Co. released its first Tier 4 loaders intact with a non-diesel particulate filter (DPF) engine solution. The seven medium-sized machines make up the most popular size class in the Bobcat loader family and provide operators with the same performance levels of previous interim Tier 4 models.
The non-DPF solution was achieved by designing an ultra-low particulate combustion (ULPC) engine. The ULPC is accomplished through an engine combustion chamber that reduces the amounts of particulate matter created during combustion. Thus, Tier 4 emissions compliance can be achieved without using a DPF.
Additionally, the new engines used in 500 frame-size loaders will have a 4 to 12 percent increase in torque.
The S510, S550 and T550 feature a radius lift path, providing operators the reach and visibility required for dumping over a wall, backfilling or loading flatbed trucks. The S530, S570, S590 and T590 models feature a vertical lift path, providing operators the ability to lift heavier loads higher.
The new Tier 4 loaders also have a machine protection system that monitors, manages and shuts down the engine if needed. This system monitors engine coolant and oil temperatures and will manage engine systems to reduce the potential of fluids reaching a point where the machine has to be shut down.
Another new feature of the skid-steer and compact track loader line is cold weather protection. Anytime the engine temperature is too low, the loader will temporarily limit the maximum engine speed (rpm) to prevent premature component wear or failure. Engine idle speed also is raised slightly to help the engine reach its operating temperature faster. As soon as the engine warms up to a predetermined temperature, the protection mechanism will deactivate.
The 500 frame-size loaders feature a cab-forward design that moves the operator closer to the attachment and touts the largest cab door opening on the market. Windows on the sides and rear of the cab are larger in size, too.
Moreover, the hydraulic systems on M-Series loaders have been engineered for higher standard flow and pressure. Engine horsepower and hydraulic flow are matched to the loader’s rated operating capacity, size and weight.
Operators have the choice between standard foot pedal hydraulic controls, the advanced control system (ACS) or the selectable joystick controls (SJC) on all machine models.
