MacDon R113 SP, Operator'S Manual

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Revision A
3.9 Reconfiguring Cutterbar Crop Stream
Discs are factory-installed to produce three crop streams, but disc rotation pattern can be changed by substitution of
spindle and corresponding disc to suit crop conditions. Each spindle and disc pair is designed to rotate in one direction and
must be changed as sets when altering crop flows.
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Figure 3.106: Cutterbars
Reducing or increasing the number of crop streams will produce
the following results:
•
Reducing the number of crop streams will result in narrower
windrows.
•
Increasing the number of crop streams will result in
smoother, wider windrows.
NOTE:
Increasing the number of crop streams will also increase the
number of diverging disc pairs which may negatively affect
cut quality in certain conditions.
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A
B
C
Figure 3.107: Cutterbar Spindles
IMPORTANT:
•
Spindles that rotate clockwise have right-leading threading
and are identified by a smooth top on the spindle gear
shaft (A).
•
Spindles that rotate counterclockwise have left-leading
threading and are identified by machined grooves on the
spindle gear shaft (B) and nut (C).
•
If the spindle position in the cutterbar has changed, the
rotational direction of that spindle
MUST remain the same
(that is, a clockwise spindle must maintain its clockwise
rotation).
•
Failure to maintain the rotation pattern can result in
damage to spindle and/or cutterbar components.
•
Safecut (shear pin) will not work if the spindles used in the
wrong orientation.
OPERATION