MacDon R85 Rotary Disc 16 Foot Self-Propelled Windrower Headers - Manual (Page 139)

MAINTENANCE AND SERVICING
IMPORTANT
Blades should be replaced in pairs, otherwise
the disc may be unbalanced and damage
the cutterbar.
IMPORTANT
The cutter blades have cutting edges on
both edges so that the blade can be turned
over and reused.
The twist in each blade
determines if its cutting direction is clockwise
or counterclockwise.
If you are unsure which
direction the spindle rotates, see Section 7.6.3
Direction of Spindle Rotation, page 129 .
Figure 7.29: Counterclockwise Disc Rotation
Direction
Figure 7.30: Clockwise Disc Rotation Direction
169457
131
Rev. F