Cutting Height - MacDon R1 Series Operator's Manual

9. Open lift cylinder lock-out valve (A) on each cylinder by
turning the handle to the open position (in line with
the hose).
10. To check the float, lower the rotary disc pull-type to cutting
position, grasp the front corner of the rotary disc pull-type,
and lift; the weight should feel like approximately 45 kg
(100 lb.) at both ends.
NOTE:
In rough or stony conditions, it may be preferable to apply
less force in order to protect the cutting components.
NOTE:
When the float setting is light, it may be necessary to
reduce the ground speed to prevent excessive bouncing
and leaving a ragged cut.
11. Repeat the adjustment procedures until the desired weight
is achieved at both ends of the rotary disc pull-type.

3.15.2 Cutting Height

The cutting height is determined by a combination of the cutterbar angle and the skid shoe settings. Adjust the cutting
height for optimum cutting performance while preventing the excessive build-up of mud and soil inside the rotary disc pull-
type, which can lead to poor crop flow and increased wear on cutting components.
Lowering the skid shoes and decreasing the cutterbar angle increases the cutting height, resulting in higher stubble that
helps material dry faster. This may be desirable in stony conditions to help reduce damage to cutting components.
Raising the skid shoes and increasing the cutterbar angle decreases the cutting height, resulting in a shorter stubble. For
instructions, refer to Adjusting Cutting Height, page
To choose a cutterbar angle that maximizes performance for your crop and field conditions, refer to
page 97.
To minimize cutterbar damage, scooping soil, and soil build-up at the cutterbar in damp conditions, the float should be set
as light as possible without causing excessive bouncing. For instructions, refer to
262634
OPERATION
Figure 3.105: Cylinder Lock-Out Valve – Open Position
95.
94
3.15.3 Cutterbar Angle,
Adjusting Float, page 91.
A
Revision A