MacDon R85 Rotary Disc 16 Foot Self-Propelled Windrower Headers - Manual (Page 88)

OPERATING THE HEADER
6.7.2 Adjusting the Skid Shoe Height
DANGER
To avoid bodily injury or death from unexpected start-up or fall of raised machine: stop engine, remove
key, and engage safety props before going under machine for any reason.
1. Raise header fully, stop engine, and remove key.
2. Engage header safety props.
3. Remove lynch pin and remove adjuster pin (A) from
one side of skid shoe (B).
4. Hold skid shoe and remove lynch pin and adjuster
pin (A) from other side. Position shoe at desired
position, and reinstall adjuster pins (A). Secure with
lynch pins.
5. Repeat for skid shoe at opposite end of header.
6. Check header float as described in Section 6.1 Header
Float, page 65 .
7. Adjust header angle to desired working position using
the machine's header angle controls. If angle is not
critical, set it to mid-position. Refer to Section
6.6
Header Angle, page 78 . Figure 6.19
6.7.3 Disc Speed
The disc header can be used to cut a variety of crops.
For the best cutting results, a range of disc speeds is recommended for each type of crop and condition. See
table below.
Crop Condition Disc rpm
Heavy 2300–2500
Alfalfa
Light 1600–2000
Sudan, Sorghum, Haygrazer,
Timothy
Tall and stemmy 2300–2500
Dense 2500
Short grass
Thin 1800–2000
Disc speeds are set and adjusted from the cab using system controls, without shutting down the windrower.
Refer to your MacDon self-propelled windrower operator’s manual.
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Rev. F