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102
Revision A
Inspecting Disc Blades
WARNING
To avoid bodily injury or death from unexpected startup of the machine, always stop the engine and remove the key
from the ignition before leaving the operator
’
s seat for any reason.
CAUTION
Disc blades have two sharp cutting edges that can cause serious injury. Exercise caution and wear gloves when working
with blades.
CAUTION
Damaged or loose disc blades or blade attachment hardware can be ejected during machine operation and may cause
personal injury or machine damage.
IMPORTANT:
Damaged blades may damage the cutterbar and result in poor cutting performance. Replace damaged blades immediately.
A
B
C
1003888
Figure 4.49: Disc Blades
A - Blade Wear to Center Line
B - Elongated Hole
C - Maximum Elongation 21 mm (13/16 in.)
1.
Check daily that the disc blades are securely attached to
the disc.
2.
Inspect blades for cracks, blade wear (A), and/or elongated
hole (B) beyond safe operating limits (C).
3.
Replace blades immediately when problems are noticed.
IMPORTANT:
Blades should be replaced in pairs or the disc may become
unbalanced and damage the cutterbar.
1029017
Figure 4.50: Counterclockwise Disc Rotation
IMPORTANT:
The disc blades have cutting edges on both sides so the blades
can be turned over and reused. The twist in each blade
determines the cutting direction. If you are unsure which
direction the spindles rotate, refer to:
Cutterbar Crop Stream, page 146
for instructions.
