Replacing Pointed Guards On A Double-Knife Header - MacDon D65 Operator's Manual

Replacing Pointed Guards on a Double-Knife Header

WARNING
To avoid bodily injury from fall of raised reel,
always engage reel safety props before going
under raised reel for any reason.
Refer to Replacing Pointed Guards on a Single-Knife
Header, page 143 for typical guard replacement.
The guard near the center of the double-knife header
(where the two knives overlap) requires a slightly different
replacement procedure.
To replace the pointed center guard or center top guide on
a double-knife header, follow these steps:
1. Remove two nuts (B) and bolts that attach guard (A)
and top guide (C) to cutterbar.
2. Remove guard, poly wear plate (if installed), top
guide (C), and adjuster bar (D).
3. Position poly wear plate (if applicable), replacement
guard (A), adjuster bar, and top guide (B). Install bolts,
but do NOT tighten.
IMPORTANT
Ensure center guard (B) (right of cutterbar split)
has offset cutting surfaces.
NOTE: Top guide (C) must accommodate the
two overlapping knives 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
169594
MAINTENANCE AND SERVICING
147.
144
Figure 6.38
A - Knife guard
C - Top guide
Figure 6.39
A - Knife guard
C - Top guide
B - Nuts
D - Adjuster bar
B - Center guard
D - Normal guard
Rev. C