MacDon R85 Rotary Disc 13 Foot - Manual (Page 54)

OPERATION
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52
Revision C
6.12.3 Roll Tension
The roll tension (the force holding the rolls
together) is factory set to MAXIMUM, and is
adjustable.
Heavy crops or tough forage that tend to
separate the rolls require the maximum roll
tension to ensure that material is sufficiently
crimped.
Light alfalfa and short grasses would require
less roll tension to lessen over-conditioning.
6.12.3.1 Roll Tension Adjustment
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.
a. Lower header to ground, shut down mower
conditioner and tractor, and remove key.
b. Open driveshield at LH end of header. See
Section 6.2.2 Driveshield.
c. To increase the roll tension, loosen jam nut (A),
and turn the spring draw-bolt (B) CLOCKWISE
to tighten the spring (C).
d. Repeat above step for opposite end of roll.
e. To decrease the roll tension, turn the spring
draw-bolts (B) COUNTERCLOCKWISE to
loosen the springs.
IMPORTANT
Turn each bolt equal amounts. Each turn
of the bolt changes the roll tension by
approximately 6.5 lbf (29 N).
f. Tighten jam nut (A) after adjusting tension.
g. Close driveshield.
LH SHOWN
A
C
B