MacDon R85 Rotary Disc 16 Foot Pull-Type - Manual (Page 102)

OPERATING THE MOWER CONDITIONER
3. Examine roll timing at each end of the rolls with the
mower conditioner fully lowered. Each steel bar on one
roll should be centered between two bars of the other
roll so that distance (B) is approximately equal on both
sides of the bar. Refer to Section
7.2 Roll Gap, page
87 .
Figure 7.11
A – crop flow B – roll timing distance
7.4.2 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. Manually rotate upper roll until it stops. Make a mark
on yoke flange to align with the center of one of the bolt
heads (A).
3. Manually rotate upper roll in opposite direction until it
stops. Make a second mark on yoke flange to align
with the bolt.
4. Determine the center between the two marks and mark
a third line on the yoke flange.
5. Rotate the upper roll until the bolt lines-up with the
third line.
6. Tighten bolts (A) to secure the position. Torque to
70 lbf·ft (95 N·m).
CAUTION
To ensure gauge is not forcibly ejected from rolls
when machine is started, ensure gauge is securely
re-attached to frame.
Figure 7.12
169456
92
Rev. D