Adjusting Roll Gap - MacDon R85 Operator's Manual

6. Center the upper roll bar (B) between two lower
roll bars.
7. Inspect roll gap at both ends of the rolls. Gap (C)
should be 12.7 mm (0.5 in.).
NOTE:
Factory setting is 12.7 mm (1/2 in.). A gap of
16 mm (5/8 in.) is strongly recommended for
heavier crop conditions.
IMPORTANT:
Roll timing is critical when the roll gap is
decreased because the bars may contact each
other if the timing is wrong.
8. To check roll timing, refer to
9. Reinstall the conditioner shield (A) and secure with
bolts (B).
10. Close the driveshield. Refer to
28.

4.2.2 Adjusting Roll Gap

DANGER
To avoid bodily injury or death from unexpected startup of the machine, always stop the engine and remove
the key from the ignition before leaving the operator's seat for any reason.
1. Lower the header fully.
2. Stop the engine and remove the key.
3. Open the driveshield. Refer to
147757
OPERATING THE HEADER
4.4 Roll Timing, page 79.
3.4 Driveshields, page
3.4 Driveshields, page
Figure 4.3: Conditioner Roll Gap (Roll Spacing
Not to Scale)
A - Direction of Crop Flow
C - Roll Gap
Figure 4.4: Conditioner Shield
28.
76
B - Center Roll Bars
Revision B