4.5.3
Cutterbar Spindles
Discs are factory installed to produce three crop-streams, but disc rotation patterns can be changed to suit
crop conditions.
To prevent damage to the cutterbar and drive systems,
each disc is attached to a spindle containing a shear
pin (A). If the disc contacts a large object such as a stone
or stump, the pins will shear and the disc will stop rotating
and move upwards while remaining attached to the spindle
with a snap ring (B). Refer to
to replace shear pin.
IMPORTANT:
• Spindles that rotate counterclockwise have left-handed
threading and machined grooves on the spindle nut.
• Spindles
that
rotate
clockwise
have
right-handed threading.
Figure 4.44: Cutterbar Spindles
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.
Figure 4.45: 13- and 16-Foot Cutterbar
169820
143
Revision A