Bush Hog RMB 1445 Forward Speed, Tractor Position, Operating Speed, Parallel Motion Geometry

Models: RMB 1445

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OPERATION

8.4 Forward Speed

Tractor ground speed is determined by the material being cut. Heaver materials require slower speeds or a second pass. Travel speeds that are too fast will cause the engine RPM to drop, will cause the cut material to have a poor finish, or will activate the breakaway system frequently. Do not exceed 2 MPH while operating mower head.

8.5 Tractor Position

The position of the tractor in relation to the hedgerow will again be determined by experience. For a normal straight forward hedgerow the position should be such as to allow the reach cylinder to be in mid-stroke. This effectively allows the reach to be adjusted in either direction without altering the tractor’s position.

8.6 Operating Speed

The flail head should be run at a constant speed of 2500 RPM. To achieve these speeds it will be necessary to run the tractor engine to give a PTO speed of 540 RPM.

Never exceed 540 RPM on the PTO shaft.

8.7 Parallel Motion Geometry

This feature enables the operator to adjust the reach of the machine in and out without having to continuously adjust the lift service to compensate for the change in head pivot height.

NOTE: The performance of the feature is at its most accurate during the mid range of reach, with some deterioration in performance being experienced when the outer extremities of reach adjustment are approached.

8.8 Working Close In and High

When attempting to position the flail head to cut close in and high the main arm may touch against the stop before the required head position is achieved. If this occurs select “Reach out”, this will cause the main arm to lift off the stop allowing the “Lift up” motion to be continued on service selection.

Using this technique allows the flail head to be positioned in the “Close In” position from ground level to full height.

RMB 1445 11/10

Operation Section 4-23

© 2010 Alamo Group Inc.

OPERATION

Page 77
Image 77
Bush Hog RMB 1445 Forward Speed, Tractor Position, Operating Speed, Parallel Motion Geometry, Working Close In and High