Milton CAT 311D LRR - Manual (Page 5)

5
Hydraulics
Low effort and precise control for highly effi cient performance
Outstanding Performance
With two percent more hydraulic pressure for additional lift
and breakout forces, the 311D LRR hydraulic system is designed
for high effi ciency and performance. Auxiliary hydraulic and
electrical lines are routed to the boom foot making installation
of hydraulic circuits much easier. This compact design utilizes
short tubes and lines, reducing friction and pressure drops,
resulting in a more effi cient use of power.
• Hydraulic snubbers at the rod end of the boom cylinders and
both ends of the stick cylinders cushion shock, reduce sound
and increase cylinder life.
• Flow is reduced to a minimum when controls are in neutral
to reduce fuel consumption and extend component life.
• Electronic Under Speed Control electronically adjusts pump
output to not exceed engine power, preventing the need to
reserve engine power to avoid engine stalls.
Boom and Stick Regeneration Circuit
The boom and stick regeneration circuit saves energy during
boom-down and stick-in operation, increasing effi ciency
and lowering operating costs.
Easy Operation
Work mode and power mode switches have been eliminated
making full power available at all times. Operators do not need
to learn different modes. An automatic boom and swing priority
function automatically selects the best mode based on joystick
movement.