SECTION 88 -- OPTIONAL EQUIPMENT -- CHAPTER 1
88-5
DISC KNIVES
There are several disc mower knives available
through Service Parts. Each type of knife is designed
to function well in specific crop and field conditions.
Contact your authorized dealer for the disc mower
knife that will work best in your conditions.
7 DEGREE TWIST KNIVES
The 7 degree twist knives, 1, are recommended for
most cutting conditions. These knives function well in
a wide range of field and cutting conditions. All disc
mowers are shipped with these knives from the plant.
14 DEGREE TWIST KNIVES
The 14 degree twist knives, 2, are recommended in
lighter crop conditions. A greater knife twist angle en-
ables the knife’s cutting edge to cut closer to the
ground while providing more lifting action to move the
crop over the cutter bar, producing a cleaner cut in
most light crop conditions. However, because of the
greater twist angle of the knife, these knives are more
susceptible to rock damage.
SERRATED 14 DEGREE TWIST KNIVES
The 14 degree knife is also available in a serrated ver-
sion, 3. The serrated knife will last longer and is more
aggressive. It works well in sudan and grass seed.
V KNIVES
The V knives, 4, are recommended in rocky condi-
tions where excessive knife bending is a concern.
TheVknifeistobeinstalledwiththeconcaveside
facing downward. This style knife has a greater re-
sistance to bending when coming in contact with a
foreign object. The cutting quality of this knife is not
as good as with the twisted knives and will deteriorate
with knife wear. However, they are more resistant to
bending in rocky field conditions.
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