Inspecting Cutterbar Hardware - MacDon R85 Operator's Manual

8. Remove nut (A).
9. Remove shoulder bolt (B) and blade (C).
10. Install new or reversed blade (C) with shoulder bolt (B)
onto disc.
NOTE: Ensure shoulder bolt is fully engaged into
blade before tightening nut.
NOTE: Ensure blade is installed correctly to suit
rotation of disc. Refer to Figures
• 7.30: Counterclockwise Disc Rotation
Direction, page 123
• 7.31:
Direction, page 123
If you are unsure which direction the
spindle rotates,
Direction of Spindle Rotation, page
11. Install nut (A). Tighten nut to 100 ft·lbf (135 N·m).
12. Remove block of wood (if used).
WARNING
Ensure cutterbar is completely clear of foreign
objects. These objects can be ejected with
considerable force
started and may result in serious injury or
machine damage.
13. Close cutterbar doors.
Doors, page 30.

Inspecting Cutterbar Hardware

Check blade attachment hardware each time blades are replaced. See
replacement procedure.
Check bolts for wear or damage and replace bolt if:
• Bolt has been removed and installed five times.
• Head is worn flush with bearing surface of blade.
• Diameter of bolt neck is worn out of specification.
• Bolt is cracked.
• Bolt is visibly distorted.
• Evidence of interference with adjacent parts.
Check nuts for wear or damage and replace nut if:
• Worn height is less than half total height.
• Nut is cracked.
• Nut has been removed and installed five times.
169455
MAINTENANCE AND SERVICING
Clockwise Disc Rotation
see Section 7.6.3
121.
when the machine
See Section 5.5 Cutterbar
Figure 7.33
is
Replacing the Cutter Blades, page 124
125
for
Rev. E