3. Check and replace nuts under the following conditions:
a. Nut has been previously installed—nuts are
one-time-use only.
b. Nut shows signs of wear (A) that is more than half
the original height (B).
c. Nut is cracked.
Figure 4.69: Cutter Blade Nut
Removing Cutter Blades
DANGER
To avoid bodily injury or death from unexpected start-up or fall of a raised machine, stop engine, remove
key, and engage header lift cylinder lock-out valves before going under machine for any reason.
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.
1. Raise mower conditioner fully, shut off engine, and
remove key.
2. Engage lift cylinder lock-out valves.
3. Open cutterbar door(s).
Figure 4.70: Cutterbar Doors
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Revision A
