214880
76
Revision A
IMPORTANT:
If holes appear in a cutterbar disc, replace the disc immediately. Do
NOT
attempt to repair the cutterbar discs. Always use
factory replacement parts.
Inspecting Cutterbar Discs
WARNING
To avoid bodily injury or death from unexpected startup of machine, always stop engine and remove key from ignition
before leaving operator
’
s seat for any reason.
CAUTION
Discblades have two sharp cutting edges that can cause serious injury. Exercise caution and wear gloves when working
with blades.
CAUTION
Damaged blades may damage the cutterbar and result in poor cutting performance. Replace damaged blades
immediately.
Figure 4.17: Cutterbar Disc
1.
Inspect the cutterbar disc surface (D) for cracks, excessive
wear, and disc distortion. Replace as required.
2.
Inspect the cutterbar disc edges (E) for cracks, excessive
wear, and edge distortion. Replace as required.
NOTE:
Cutterbar discs are
NOT
repairable and must be replaced if
damaged.
3.
Ensure that the discblade fasteners (A) are securely
attached to the cutterbar disc and that nut shields (B) are
present and undamaged. Replace as required.
4.
Check that the cutterbar disc bolts (C) are securely attached
to the spindles. Tighten as required.
Figure 4.18: Cutterbar Disc
–
Cutaway View
5.
Inspect the cutterbar disc for deformation. If the disc is
deformed, dimension (A) must
NOT
exceed 48 mm
(1 7/8 in.). Replace as required.