Cutting Height; Adjusting Cutting Height - MacDon R113 Operator's Manual

3.10 Cutting Height

Cutting height is determined by a combination of the cutterbar angle and skid shoe settings. Adjust cutting height
for optimum cutting performance while preventing excessive build-up of mud and soil inside the self-propelled disc
header that can lead to poor crop flow and increased wear on cutting components.
To choose an angle that maximizes performance for your crop and field conditions, refer to
page 72.
• Lowering the skid shoes and decreasing self-propelled disc header angle increases the cutting height, resulting
in longer stubble lengths that help material dry faster. This may be desirable in stony conditions to help reduce
damage to cutting components.
• Raising the skid shoes and increasing self-propelled disc header angle decreases the cutting height, resulting in
a shorter stubble height.
To minimize cutterbar damage, scooping soil, and soil build-up at the cutterbar in damp conditions, self-propelled
disc header float should be set as light as possible without causing excessive bouncing.
NOTE:
When float setting is light, it may be necessary to reduce ground speed in order to prevent excessive bouncing and
leaving a ragged cut.

3.10.1 Adjusting Cutting Height

DANGER
To avoid bodily injury or death from unexpected start-up or fall of a raised machine, stop engine, remove
key, and engage windrower lift cylinder safety props before going under machine for any reason.
1. Raise self-propelled disc header fully, stop engine, and
remove key.
2. Loosen bolts (C).
3. Remove bolts, nuts, and washers (D).
4. Raise or lower skid shoe.
NOTE:
Skid shoes have two adjustment settings: fully
raised (A) and fully lowered (B).
5. Install bolts, nuts, and washers (D), and then tighten.
6. Tighten bolts (C).
7. Check self-propelled disc header float. Refer to
windrower operator's manual.
8. Adjust cutterbar angle to desired working position using
the header angle controls. If angle is not critical, set it to
mid-position. Refer to
214077
3.11 Cutterbar Angle, page
OPERATION
A
D
B
D
72.
Figure 3.106: Skid Shoes
71
3.11 Cutterbar Angle,
C
C
Revision A