MacDon A40-D, Operator'S Manual

Page: 143 / 240

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129
Revision A
Figure 4.39: Stub Guard Replacement
1. Remove two nuts (A) and bolts that attach center
guard (B) and top guide (C) to cutterbar.
2. Remove guard, top guide, and adjuster bar (D).
Figure 4.40: Stub Guard Identification
A - Normal B - Center
IMPORTANT:
Ensure center guard (B) has offset cutting surfaces.
Refer to illustration.
Figure 4.41: Stub Guard Adjustment
NOTE:
Top guide (C) (which is an inverted stub guard) must
accommodate the two overlapping knives at center
guard location on double-knife header. Ensure
replacement is correct part.
IMPORTANT:
Ledger surfaces of center and adjacent guards must be
vertically aligned to avoid interference with knife
sections.
3. Position replacement guard (B), adjuster bar (D), top
guide (C), and install bolts and nuts (A). Do
NOT
tighten.
4. Check and adjust clearance between hold-down and knife. Refer to 4.7.8 Hold-Downs, page 130 .
MAINTENANCE AND SERVICING