MacDon PW8, Operator'S Manual

Page: 93 / 304

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Revision A
3.12.3 Operating Height
Header Height
Figure 3.103: Operating Height
Header height is the distance between the deck pivot and
the ground. Recommended operating height (A) is between
4 and 5 on the end plate decal or 305 mm (12 in.) above
the ground.
Figure 3.104: Height Gauge
Header height adjustments are made using the combine
header height control. The numbered decals (A) on both
sides of the header indicate the header operating height if
the combine is not equipped with an in-cab header height
display.
The position of the end plate (B) on the numbered
decals (A) represents the header height. Setting the end
plate position between 4 and 5 will achieve the
recommended operating height of 305 mm (12 in.).
NOTE:
Position 1 represents the lowest header height and
position 7 represents the highest.
If your combine is factory equipped with auto header height control (AHHC), refer to the following operating and
adjustment information. If AHHC is not functioning properly, the sensor output voltage or header height range may
require adjustment. For more information, refer to
4.1 Auto Header Height Control (AHHC) System Overview, page
95 .
1. Ensure the optimum operating height is 305 mm (12 in.) off the ground under normal conditions and with the
AHHC set to the
NEUTRAL position.
2. Use the AHHC to change the pick-up operating height to suit your specific crop condition. Refer to your
combine operator
’
s manual for details.
3. If the AHHC sensor requires adjustment, refer to 4.1 Auto Header Height Control (AHHC) System Overview,
page 95 .
OPERATION