MacDon R80 Rotary Disc Pull-Type Windrower - Manual (Page 48)

OPERATION
Form # 169053
46
Model Year - 2009
e. If required, adjust roll timing as follows:
1. Open LH drive shield.
2. Loosen four bolts (F) in slots of yoke plate
on lower roll universal shaft.
3. Position gauge at center of rolls and
manually turn the rolls to engage the gauge.
The rolls will automatically adjust to the
correct timing.
4. Tighten bolts (F) to secure the position.
5. Turn the rolls to release gauge.
WARNING
Remove gauge from rolls and return it to
storage location before starting machine.
f. Store gauge inside RH panel with bolt (D) and
nut.
g. Close drive shields.
6.13.5 Roll Tension
The roll tension (the force holding the rolls
together) is factory set and is adjustable. If
required, adjust as follows:
a. Open LH and RH drive shields.
b. Loosen jam nut (A).
c. To increase the roll tension, turn the spring
draw-bolt (B) clockwise to tighten the spring (C)
at each end of the roll.
d. To decrease the roll tension, turn the spring
draw-bolts counterclockwise to loosen the
springs.
e. Tighten jam-nut (A) after adjusting tension.
f. Close
drive shields.
F
C
A
B