MacDon R80 Rotary Disc - Manual (Page 27)

OPERATION
Form # 169089
25
Model Year - 2009
CROP
X
f. Inspect roll gap at both ends of the rolls at
access port.
IMPORTANT
Roll timing is critical when the roll gap is
decreased because:
• Conditioning is affected, and
• The bars may contact each other.
Refer to Section 6.12.5.2, Roll Timing.
6.12.5.2 Roll Timing
For proper conditioning, the rolls must be
properly timed with each steel bar on one roll
centered between two bars of the other roll as
shown. The factory setting should be suitable
for most crop conditions.
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.
Check roll timing
(distance ‘X’) at
each end of the
rolls with the
header fully
lowered using the
gauge located
inside the RH end
panel of header.
a. Lower header to ground, shut down tractor and
remove key.
b. Open both rear drive shields.
c. Remove bolt (A) and nut, and remove gauge (B)
from inside panel at RH end of header.
d. From the rear of the header, locate gauge (B) at
centre of rolls as shown and manually turn rolls
to limits of gauge. Rolls will engage the gauge if
timing is correct.
(continued next page)
A
B
B
START POSITION
GAUGE POSITION
B
ROLL GAP