MacDon FD75 OM - Manual (Page 70)

OPERATION
6. Reinsert pin (B), engage in frame, and secure with
lynch pin (A).
7. Check that all of the skid shoes are adjusted to the
same position.
8. Adjust header angle to desired working position using
the machine’s header angle controls. If angle is not
critical, set it to mid-position.
9. Check header float. Refer to 4.7.3 Header Float, page
137 .
Figure 4.32: Inner Skid Shoe
Adjusting Outer 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) at each skid shoe (B).
4. Hold shoe and remove pin (C) by disengaging frame
and then pulling away from shoe.
5. Raise or lower skid shoe to desired position using holes
in support as a guide.
6. Reinstall pin (C), engage in frame, and secure with
lynch pin (A).
7. Check that skid shoes are adjusted to the
same position.
8. Check header float. Refer to Checking and Adjusting
Header Float, page 138 .
Figure 4.33: Outer Skid Shoe
4.7.2 Auto Header Height Control
MacDon’s Auto Header Height feature works in conjunction with the Auto Header Height Control option available
on certain combine models.
A sensor is installed in the float indicator box (A) on the CA25 Combine Adapter. This sensor sends a signal to
the combine to allow it to maintain a consistent cutting height, and optimum adapter float as the header follows
ground contours.
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