Knife Hold-Downs - MacDon D65 Operator's Manual

1. Remove the two nuts (A) and bolts that attach guard (B)
and top guide (C) and adjuster bar (D) to cutterbar.
2. Remove guard, poly wear plate (if installed), top
guide (C), and adjuster bar (D).
3. Locate poly wear plate (if applicable), replacement
guard (B), adjuster bar (D), top guide (C), and install
bolts, but do NOT tighten.
IMPORTANT
Ensure center guard (B) has offset cutting
surfaces.
NOTE: Top guide (C), which is an inverted normal
stub guard, must accommodate the
two overlapping knifes at center guard
location on double-knife header. Ensure
replacement is correct part.
4. Check and adjust clearance between hold-down and
knife. Refer to Knife Hold-Downs, page

Knife Hold-Downs

Check daily that knife hold-downs are set to prevent knife sections from lifting off guards, but still permit knife to slide
without binding. If you have pointed guards, see
If you have stub guards, see
NOTE: Guards should be aligned prior to adjusting hold-downs. See
169594
MAINTENANCE AND SERVICING
147.
Adjusting Hold-Downs on Headers with Pointed Guards, page
Adjusting Hold-Downs on Headers with Stub Guards, page
Figure 6.42
A - Nuts
C - Normal top guide
Adjusting Knife Guards, page
147
B - Center guard
D - Adjuster bar
148.
149.
141.
Rev. C