Direction Of Spindle Rotation; Cutterblades - MacDon R85 Operator's Manual

7.6.3 Direction of Spindle Rotation

When installing cutterblades or disc accelerators, the direction of rotation determines proper positioning. Reference
the following illustration to determine the direction of spindle rotation.
Figure 7.34: Spindle Rotation
A - Front of Header
D - Disc 8 9

7.6.4 Cutterblades

Each disc has two cutterblades (A) attached to each end
and are free to swivel horizontally on a specially designed
shoulder bolt.
The blade, with two cutting edges, can be flipped over so
that the blade does not need to be replaced as often.
The blades are NOT repairable and must be replaced if
severely damaged or worn.
IMPORTANT:
Always use factory replacement parts.
8. Driveline deflector installed here.
9. Driven deflector installed here.
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MAINTENANCE AND SERVICING
B - 13-ft. Cutterbar
129
C - Disc 1 8
Figure 7.35: Cutterblades
Revision F