Header Float; Float Operating Guidelines - MacDon M105 Operator's Manual

4.4.2 Header Float

Float is intended for cutting crops that require the cutterbar to be in contact with the ground. Optimum float is
for the cutterbar to maintain contact with the ground with minimum bouncing and scooping or pushing soil. The
machine will perform best with minimum extra weight on the header.
IMPORTANT:
• To avoid frequent breakage of knife components, scooping soil, or soil build-up at cutterbar in wet conditions,
header float should be set as light as possible without causing excessive bouncing.
• When float setting is light, it may be necessary to use a slower ground speed to avoid excessive bouncing and
leaving a ragged cut.
• The stabilizer wheels are designed to minimize bouncing at the header ends and NOT float the header. Refer
to your header operator's manual for float setting and adjustment guidelines.

Float Operating Guidelines

When working with the cutterbar on the ground:
1. Set center-link to mid-range position (05.0 on cab display module [CDM]). Refer to
page 124.
2. In rocky fields, adjust skid shoes down to raise guards when operating at flattest header angle to minimize
scooping rocks.
3. Adjust header height or adjust header angle to minimize pushing soil.
When working with the cutterbar off the ground (draper header only):
1. Set center-link to mid-range position (05.0 on CDM). Refer to
2. The proper setting requires balancing the amount of header weight carried by the float and stabilizer wheels.
Refer to your draper header operator's manual.
3. Use the CDM controls to automatically maintain cutting height. Refer to
169890
OPERATION
4.4.5 Adjusting Header Angle, page
119
4.4.5 Adjusting Header Angle,
4.4.6 Cutting Height, page
124.
127.
Revision A