MacDon FD75 OM - Manual (Page 322)

MAINTENANCE AND SERVICING
To replace stub guards, follow these steps:
1. Remove the two nuts (A) and bolts that attach guard (B)
and top guide (C) to cutterbar.
2. Remove guard, poly wear plate (if installed), top guide,
and adjuster bar (D).
3. Position poly wear plate (if applicable), replacement
guard (B), adjuster bar (D), top guide (C), and install
bolts and nuts (A). Do NOT tighten.
IMPORTANT:
Note position of mitre on adjuster bar (D). Bar
should be reinstalled in same position. Mitres
should not be adjacent to each other.
Figure 6.105: Stub Guards
A - Nuts B - Stub Guard
C - Top Guide D - Adjuster Bar
IMPORTANT:
The first four outboard guards (B) on the drive
side(s) of the header do NOT have a ledger plate
like the normal guards (A). Ensure that the proper
replacement is installed.
4. Check and adjust clearance between hold-down and
knife. Refer to
Knife Hold-Downs, page 309 .
Figure 6.106: Stub Guards
A - Normal Guard B - Drive Side Guard
Replacing Stub Guards on a Double-Knife Header
Refer to Replacing Stub Guards on a Single-Knife Header, page 307 for typical guard replacement.
The guard at the center of the Double Knife header, where the two knives overlap, requires a slightly different
replacement procedure.
To replace the center guard or center top guide, follow these steps:
169894 308 Revision A