MacDon FD70 for Combine Operators - Manual (Page 98)

SECTION 9. OPERATION
Form 169006
96
Revision D
9.11.3.6 Wing Float Linkage Adjustments
The wing float has been adjusted at the factory
but the following adjustments may be necessary
for optimum operation of the FD70 FlexDraper:
 Wing
Balance
 Cutterbar Straightness In Lock Mode
 Wing Flex Range
Refer to Section 10.15 HEADER WING FLOAT
for details on performing these adjustments.
9.11.4 Header Angle
Header angle is the angle between the drapers
and the ground, and is adjustable to
accommodate crop conditions and/or soil type.
Guard angle is the similar to header angle which
is the angle between the guard upper surface and
the ground. Refer to illustration.
Flatter header angles are recommended for
normal crop conditions and for stony ground
because it minimizes sickle section breakage and
reduces soil scooping or build-up at the cutterbar
in wet conditions.
Steeper angles are recommended in “downed”
crops for better lifting action, or for cutting close
to the ground in soybeans for example.
Refer to Section 9.11.11 Reel Tine Pitch and
Section 9.11.10 Reel Fore-Aft Position for
adjustment details.
The following table summarizes the adjustment
range:
HEADER
WIDTH
DRAPER
ANGLE
GUARD
ANGLE
25 FT 13.0° - 18.4° 7.0° - 12.4°
30, 35,
40, 45 FT
13.0° - 18.4° 2.0° - 7.4°
9.11.4.1 Angle Adjustment
The header angle is varied by adjusting the
length of the top center-link (mechanical or
hydraulic) between the combine adapter and the
header.
Refer to “Header Angle” section in your Combine
Operator’s Manual for adjustment details.
SHORTEST CENTER-LINK
HEADER ANGLE GUARD ANGLE
GUARD ANGLE HEADER ANGLE
LONGEST CENTER-LINK