MacDon D65 Operator's Manual page 168

4. Open the access cover (A) on the endsheet behind
cutterbar to provide clearance between the knife drive
box pulley and the endsheet.
5. Manually stroke knife to its outer limit and clean area
around the knifehead.
6. Remove bolt (A).
7. Remove the grease zerk (B) from the pin.
8. Use a screwdriver or a chisel in slot (C) to release load
on knifehead pin.
9. Pry pin upward with a screwdriver in pin groove until
pin is clear of knifehead.
10. Push the knife assembly inboard until it is clear of the
output arm.
11. Seal bearing in knifehead with plastic or tape.
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MAINTENANCE AND SERVICING
Figure 6.56: Access Cover
Figure 6.57: Knifehead
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Revision A