Cutter Blades; Inspecting Cutter Blades - MacDon R113 Operator's Manual

4.5.4 Cutter Blades

Each disc has two cutter blades (A) attached at opposite
ends that are free to rotate horizontally on a specially
designed shoulder bolt.
The blade has two cutting edges and can be flipped over
so that the blade does not need replacing as often.
The blades are NOT repairable and must be replaced if
severely damaged or worn.
IMPORTANT:
Always use factory replacement parts.

Inspecting Cutter Blades

DANGER
Stop engine and remove key from ignition before leaving operator's seat for any reason. A child or even a
pet could engage an idling machine.
CAUTION
Cutter blades have two cutting edges. Exercise caution when working around the blades. Blades are sharp
and can cause serious injury. Wear gloves when handling blades.
CAUTION
Damaged blades may damage the cutterbar and result in poor cutting performance. Replace damaged
blades at earliest possible opportunity.
1. Check daily that the cutter blades are securely
attached to the disc.
2. Inspect blades for cracks, wear beyond safe operating
limits (C), and distortion.
3. Replace blades immediately if any problems occur.
IMPORTANT:
Blades should be replaced in pairs or the disc
may become unbalanced and cause damage to
the cutterbar.
169820
MAINTENANCE AND SERVICING
153
Figure 4.64: Cutter Blades
Figure 4.65: Cutter Blades
A - Blade Wear to Center Line
B - Elongated Hole
C - Maximum Elongation 13/16 in. (21 mm)
Revision A