MacDon FD75 - Page 75

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The header float system floats the header over the surface to compensate for ridges, trenches, and other variations
in ground contour to prevent the cutterbar from pushing into the ground or leaving uncut crop.
Refer to the following for additional information:
• Adjusting Inner Skid Shoes, page 57
• Adjusting Outer Skid Shoes, page 57
• 3.7.4 Header Angle, page 76
• 3.7.2 Header Float, page 58
Also refer to 3.6.2 Header Settings, page 42
Adjusting Inner Skid Shoes
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.
1. Raise header to full height, engage safety props, shut off engine, and remove key.
2. Raise the stabilizer wheels or slow speed transport wheels fully (if installed). Refer to the following:
• Adjusting Stabilizer Wheels, page 55
• Adjusting Stabilizer/Slow Speed Transport Wheels, page 54
1001659
D
C
B
A
Figure 3.31: Inner Skid Shoe
3. Remove lynch pin (A) from each skid shoe.
4. Hold shoe (B) and remove pin (C) by disengaging from
the frame and pulling away from the shoe.
5. Raise or lower skid shoe (B) to achieve the desired
position using the holes in support (D) as a guide.
6. Install pin (C), engage in frame, and secure with lynch
pin (A).
7. Check that all skid shoes are equally adjusted.
8. Adjust the header angle to the desired working position
using the machine’s header angle controls. If the
header angle is not critical, set it to the mid-position.
9. Check the header float. Refer to 3.7.2 Header Float,
page 58.
Adjusting Outer Skid Shoes
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.
1. Raise the header to its full height, engage the safety props, shut off the engine, and remove the key from
the ignition.
2. Raise the stabilizer wheels or slow speed transport wheels fully (if installed). Refer to the following:
OPERATION