Adjusting The Roll Gap - MacDon R85 Operator's Manual

5. Inspect roll gap at both ends of the rolls. Gap (B)
should be 0.5 in. (12.7 mm).
IMPORTANT:
Roll timing is critical when the roll gap is
decreased because the bars may contact each
other if the timing is wrong.
6. Refer to
6.4 Roll Timing, page 77
checking the timing.
NOTE:
Factory setting is 1/2 in. (12.7 mm). A gap of
5/8 in. (16 mm) is strongly recommended for
heavier crop conditions.
7. Reinstall the conditioner shield (A). Secure with
bolts (B).
8. Close the driveshield. Refer to
26.

6.2.2 Adjusting the Roll Gap

DANGER
Stop engine and remove key from ignition before
leaving operator's seat for any reason. A child or
even a pet could engage an idling machine.
1. Lower header fully.
2. Stop the engine and the remove key.
3. Open the driveshield. Refer to
26.
169455
OPERATING THE HEADER
for instructions on
5.4 Driveshields, page
5.4 Driveshields, page
74
Figure 6.3: Conditioner Roll Gap (Roll Spacing
Not to Scale)
A - Direction of Crop Flow
C - Roll Gap
Figure 6.4: Install Shield
B - Center Roll Bars
Revision F