MacDon R85 Rotary Disc 16 Foot Pull-Type - Manual (Page 168)

MAINTENANCE AND SERVICING
3. Check discs (A) for damage or loose fasteners.
4. Replace damaged discs. Refer to Section 8.7.2
Replacing a Disc, page 158 .
5. Replace damaged fasteners. Tighten loose fasteners.
6. Close cutterbar doors.
Figure 8.29
8.7.2 Replacing a Disc
Follow these steps to replace 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 doors.
2. Place a block of wood between two discs to prevent
disc rotation while loosening blade bolts.
3. Remove four bolts (A) on disc cover (B) and remove
cover and disc (C).
4. Position new disc (C) on spindle ensuring it is 90° to
the adjacent discs.
5. Install cover (B) and secure with four bolts (A). Tighten
bolts to 92 ft·lbf (125 N·m).
Figure 8.30
169456
158
Rev. D