MacDon FD75 OM - Manual (Page 69)

OPERATION
Cutting On the Ground
Cutting on the ground is performed with the header fully lowered so that the cutterbar is on the ground. The
orientation of the sickle and sickle guards relative to the ground (or header angle) is controlled with the skid shoes,
and center-link. and NOT with the header lift cylinders. These two features allow the operator to adjust to field
conditions to maximize the amount of material cut and to reduce damage to the sickle from stones and debris.
The header is equipped with a type of suspension system that floats the header over the surface to compensate for
ridges, trenches, or other variations in ground contour instead of pushing the cutterbar into the ground or leaving
uncut crop.
Refer to the following sections for further information about each feature:
• Adjusting Inner Skid Shoe, page 55 .
• Adjusting Outer Skid Shoe, page 56 .
• 4.7.4 Header Angle, page 145 .
• 4.7.3 Header Float, page 137 .
Also see 4.6.2 Header Settings, page 47 .
Adjusting Inner Skid Shoe
1. Fully raise the stabilizer wheels or slow speed transport wheels (if installed). Refer to:
• Adjusting Stabilizer Wheels, page 53 , or
• Adjusting Stabilizer/Slow Speed Transport Wheels, page 52
DANGER
To avoid bodily injury or death from unexpected start-up or fall of raised machine, always stop engine,
remove key, and engage safety props before going under header for any reason. Refer to the combine
operator’s manual for instructions regarding the proper use and storage of header safety props.
2. Fully raise header, engage safety props, shut off engine, and remove key.
3. Remove lynch pin (A).
4. Hold shoe (B) and remove pin (C) by pulling down to
disengage frame and then pulling away from shoe.
5. Raise or lower skid shoe (B) to desired position using
holes in support (D) as a guide.
Figure 4.31: Inner Skid Shoe
169894 55 Revision A