Installing Cutterbar Discs - MacDon R1 Series Operator's Manual

3. If the rotary disc pull-type is raised:
a. Place blocks under each end, or just inside each end, of the cutterbar.
b. Lower the rotary disc pull-type onto the blocks.
c. Shut down the engine, and remove the key from the ignition.
d. Close the lift cylinder lock-out valves. For instructions, refer to
4. Open the cutterbar doors. For instructions, refer to
Opening Cutterbar Doors – Export, page
5. Place a pin (or equivalent) in front hole (B) of the rock
guard to prevent the discs from rotating while you are
loosening the bolts.
6. Remove four M12 bolts and washers (A).
7. Remove cutterbar disc cap (A).
8. Remove cutterbar disc (B).

Installing Cutterbar Discs

Ensure that the blades of the installed disc are perpendicular to those on the adjacent discs.
DANGER
To prevent injury or death from the unexpected start-up or fall of a raised machine, always stop the engine and remove
the key from the ignition before leaving the operator's seat or making adjustments to the machine. If the rotary disc
pull-type is raised, always close the lock-out valves, and place blocks under the rotary disc pull-type. Never work on or
beneath an unsupported rotary disc pull-type.
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MAINTENANCE AND SERVICING
3.3.1 Opening Cutterbar Doors – North America, page 41
42.
A
Figure 4.41: Cutterbar Disc Bolts
Figure 4.42: Cutterbar Disc and Cap
167
3.1.1 Engaging Locks, page
B
B
35.
or 3.3.2
A
A
Revision A