MacDon R85 Rotary Disc 16 Foot Self-Propelled Windrower Headers - Manual (Page 140)

MAINTENANCE AND SERVICING
Replacing the Cutter Blades
Follow these steps to replace the cutter blades:
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.
DANGER
To avoid bodily injury or death from unexpected
start-up or fall of raised machine: stop engine,
remove key, and engage safety props before going
under machine for any reason.
1. Raise header fully.
2. Shut off the engine and remove the key.
3. Engage header safety props.
4. Open cutterbar door(s). See Section 5.5 Cutterbar
Doors, page 31 .
5. Rotate disc (A) so that blade (B) faces forward and
lines up with hole (C) in rock guard.
6. Place a block of wood between two discs to prevent
disc rotation while loosening blade bolts.
7. Clean debris from blade attachment area.
Figure 7.31
169457
132
Rev. F