MacDon R85 Rotary Disc 13 Foot Self-Propelled Windrower Header - Manual (Page 142)

MAINTENANCE AND SERVICING
5. Install four M12 mm x 60 mm long bolts (A) into holes
in plate (B).
6. Use bolts (A) as jacking screws to remove plate (B)
from gear. Remove bolts from plate.
Figure 7.49
7. Pry out failed key (A) from gear (B) and plate.
8. Thoroughly clean metal debris from disassembled
components and cutterbar.
Figure 7.50
9. Inspect plate (C) and gear shaft (E) for damage. If
seriously damaged, replace entire spindle assembly.
Contact your MacDon Dealer.
10. Install new key (D) into gear (E) keyway as shown.
11. Align keyway in plate (C) with key in gear (E) and install
plate (C) onto gear until sufficient threads are exposed
to install washer (B) and nut (A).
Figure 7.51
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Rev. E