Macdon HC10 for D-Series User Manual download pdf (Page 88)

OPERATION

4.9 Condition

er Operation

WARNING

Keep hands and

feet away from discharge opening. Keep everyone several hundred feet away from

your operatio

n. Never direct the discharge toward anyone. Stones or other foreign objects can be

ejected with f

orce.

WARNING

To avoid bodily injury or death from unexpected s tartup of machine, stop engine and remove key before

adjusting rolls.

4.9.1 Roll and Feed Draper Speed

The roll and feed draper speeds change whenever the header knife speed is changed since the drives use the same

hydraulic circuit. They cannot be independently adjusted.

4.9.2 Adjusting Roll Gap

Steel rolls condition the crop by crimping and crushing the

stem in several places. This allows moisture release for

quicker drying. The degree to which the crop is conditioned

as it passes through the rolls is controlled by roll gap. See

illustration. The gap is factory set at 0.75 in. (20 mm) or at

1.5 line on gauge. Gauge readings should be the same at

both ends of the roll.

Correct conditioning of alfalfa, clover and other legumes is

usually indicated when 90% of the stems show cracking,

but no more than 5% of the leaves are damaged. Use only

enough roll gap to achieve this result.

A larger gap (up to 1 inch [25 mm]) may be desirable in

thick-stemm ed cane-type crops; however, too large a gap

may cause feeding problems.

Grass type crops may require less gap for proper feeding

and conditioning. The intermeshing steel rolls of the

hay conditioner crimp the plant stems in several places,

allowing moisture release and quicker drying.

Figure 4.

A - Crop Dir ection B - Roll Gap

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Macdon HC10 for D-Series User Manual Page 88