MacDon R85 Rotary Disc 13 Foot Self-Propelled Windrower Header - Manual (Page 127)

MAINTENANCE AND SERVICING
3. Check discs (A) for damage or loose fasteners.
4. Replace damaged discs. Refer to
• Removing a Disc, page 119
• Installing a Disc, page 120
5. Replace damaged fasteners. Tighten loose fasteners.
6. Close cutterbar doors.
Figure 7.23
7.6.2 Disc
Removing a Disc
CAUTION
Exercise caution when working around the blades.
Blades are sharp and can cause serious injury.
Wear gloves when handling blades.
1. Open cutterbar door(s). See Section 5.5 Cutterbar
Doors, page 30 .
2. Identify which disc needs to be replaced.
3. Place a block of wood between two discs to prevent
disc rotation while loosening bolts.
4. If the disc has a deflector installed on it. Remove the
rotary deflector. See Section
• Removing the Driveline Deflector, page 130
• Removing the Driven Deflector, page 129
5. Remove four bolts (A) on disc cover (B) and remove
cover and disc (C).
NOTE: If removing multiple discs, mark
each discs to assist in reinstallation
as the blades on each disc are
direction-specific.
See Section 7.6.3
Direction of Spindle Rotation, page 121 .
Figure 7.24
169455
119
Rev. E