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Tigercat adds more refinements to carrier series |
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The Tigercat 855C, 860C and 870C carriers have undergone a host of
improvements related to improved efficiency, performance and
productivity. Affected products include the H855C/LH855C harvesters,
LS855C shovel logger and the 860C/870C feller bunchers.
Although there have been dozens of changes and enhancements, the
most notable improvement is the new twin swing drive system which
increases swing torque by 44% while reducing pinion loads for extended
swing system life. Included with this update are new swing drive
gearboxes with larger capacity bearings and a stronger gear train as
well as a new swing system valve that significantly improves efficiency.
Improvements have been made to the hydraulic system to increase
efficiency and performance. These include refinements to the saw
circuit, larger capacity pumps and improved valving and control systems
which among other advantages, improve feller buncher wrist control
performance.
An operator controlled ER on/off switch has been added. If the
operator is felling large timber up hill, the ER system can be disabled
to create additional stick boom-out force. (ER allows the operator to
extend and retract the boom on a horizontal plane using a single
joystick. In doing so, ER transfers energy back and forth between the
main and the stick boom functions, reducing the total energy required
and freeing this energy up for other machine functions or fuel savings.
No other equipment manufacturer has comparable technology.)
A number of the changes to the 860C/870C series machines
incorporate systems already in use in the 855C product line for
increased parts commonality among the lines.
www.tigercat.com
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