Adjusting The Roll Timing - MacDon R85 Operator's Manual

4. Measure the clearance (B) between the flats of the
conditioner roll bars at both end of the conditioner
rolls. Dimension (B) should be set to 0.35–0.51 in.
(9–13 mm). If adjustment is required, see Section
6.4.2 Adjusting the Roll Timing, page 72
NOTE: There should be less than 0.08 in. (2 mm)
difference between the two ends of the
conditioner roll.
NOTE: Roll spacing not to scale in illustration.
5. Close the driveshield. See Section
page 28.

6.4.2 Adjusting the Roll Timing

Follow these steps to adjust the roll timing (if necessary):
1. Loosen four bolts (A) in slots of yoke plate (B) on upper
roll universal shaft.
2. Locate roll timing gauge (B) on frame member under
the flange. Remove nut (A) to remove gauge.
169457
OPERATING THE HEADER
5.4 Driveshields,
Figure 6.8: Roll Timing
A - Crop Flow
B - Roll Timing Distance 0.35–0.51 in. (9–13 mm)
Figure 6.9
Figure 6.10: Roll Timing Gauge
A - Nut
72
B - Timing Gauge MD #150572
Rev. F