MacDon FD75 OM - Manual (Page 315)

MAINTENANCE AND SERVICING
To replace a section, follow these steps:
1. Stroke knife as required to center the section (A)
between guards.
2. Remove nuts (B).
3. Remove bars (C) and lift section off the knife bar.
4. If section is under a splice bar (D), remove the bar.
5. Clean any dirt off of knife back and position new section
on knife.
IMPORTANT:
Do NOT mix fine or coarse sections on
same knife.
6. Reposition bars (C) and/or (D) and install lock nuts (A).
NOTE:
If replacing a screw, make sure to fully insert it.
Do not use the nut to draw the screw into the knife
bar.
7. Torque nuts to 7 ft·lbf (9.5 N·m).
Figure 6.93: Cutterbar
169894 301 Revision A