MacDon A40-D, Operator'S Manual

Page: 139 / 240

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125
Revision A
Figure 4.29: Pointed Center Guard
Double knife pointed center guard and hold-down
IMPORTANT:
Ensure center guard (B) has offset (A) in ledgers and that
hold-down accommodates overlapping knives.
NOTE:
Replace adjacent guards when replacing center guard.
Figure 4.30: Center Guard
1. Remove two nuts (A), and carriage bolts (B) that attach
guard (C), adjuster bar (D), and hold-down (E) to the
cutterbar.
2. Remove guard (C), hold-down (E), and adjuster bar (D).
3. Position new guard (C) on cutterbar, and install carriage
bolts (B).
4. Install adjuster bar (D) and hold-down (E), and secure
with nuts (A). Tighten nuts to 68
–
92 Nm (50
–
68 lbf·ft).
Figure 4.31: Guard Alignment
5. Check that cutting surfaces (A) of center and adjacent
guards are aligned. Adjust as required as per
Aligning
Guard, page 123 .
6. Check and adjust clearance between hold-down and
knife. Refer to
4.7.8 Hold-Downs, page 130 .
MAINTENANCE AND SERVICING