MacDon R85 Rotary Disc 13 Foot Self-Propelled Windrower Header - Manual (Page 131)

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 121 .
Figure 7.30: Counterclockwise Disc Rotation
Direction
Figure 7.31: Clockwise Disc Rotation Direction
169455
123
Rev. E