Adjusting Roll Gap Steel Rolls - MacDon R1 Series Operator's Manual

1. Lower the rotary disc pull-type fully.
2. Shut down the engine, and remove the key from the ignition.
3. Loosen upper jam nut (A) on both sides of the conditioner
attachment.
4. Turn lower nut (B) counterclockwise until the upper roll
rests on the lower roll.
5. Turn lower nut (B) one full turn clockwise to raise the upper
roll and achieve a 3 mm (1/8 in.) roll gap.
6. Hold nut (B) and tighten jam nut (A) on both sides of the
conditioner attachment.
IMPORTANT:
Make sure the roll gap adjustment nuts are adjusted
equally on both sides to achieve a consistent gap across
the rolls.
7. Rotate the rolls manually and use a feeler gauge at the
ends of the rolls to check that the actual gap is no less than
2 mm (1/16 in.) and no more than 4 mm (5/32 in.).
Adjusting Roll Gap – Steel Rolls
The length of thread extending above the jam nut on the adjustment rods can be used as an approximation of roll gap but
does NOT provide consistent roll gap measurements.
DANGER
To prevent injury or death from the unexpected start-up of the machine, always stop the engine and remove the key
from the ignition before leaving the operator's seat for any reason.
DANGER
Ensure that all bystanders have cleared the area.
To ensure the roll gap is at the factory setting, follow the procedure below:
1. Lower the rotary disc pull-type fully.
2. Shut down the engine, and remove the key from the ignition.
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OPERATION
Figure 3.120: Roll Gap Adjustment
108
A
B
Revision A