Seed Hawk 30 SERIES: 600C & 800C 2013 User Manual

Page 95

SEED HAWK® 30 SERIES OPERATOR’S MANUAL

4.31.1 LOOSE SOIL CONDITIONS

If the soil is too loose before seeding, the final packed surface will be excessively below the
loose soil that is thrown to the sides. This increases the likelihood of soil falling, blowing or
washing back into the packer tire path. The result is an altered seed depth. The solution to this
is to ensure that the soil is not too loose before seeding. It may be necessary to pack the soil
before seeding.

THE SEED HAWK DRILL WILL COVER ADJACENT ROWS IF:

 The soil is conventionally tilled leaving it loose.
 Straw and/or chaff is poorly spread, wet or in large clumps.
 Field travel speed is excessive. May affect above listed items.

4.31.2 MUDDY SOIL CONDITIONS

Seeding depth may be altered if mud sticks to the packer tire. If mud is only 0.25 ‐ 0.38 in (6 ‐
10 mm) thick, then this is not usually a concern. Assuming good soil moisture, the reduced seed
depth is still adequate. Air‐inflated packer tires should be deflated slightly to allow the tire to
bulge slightly and shed any mud build up. If the mud thickness is uniform, the seed depth, also,
will be uniform, but shallower than the initial depth setting. It may be desirable to set the seed
depth deeper to compensate for mud build up.

4.31.3 OPERATING ON CURVES AND CORNERS

When seeding around curves and corners the packer wheel moves out of the furrow and rides
up on the hard, undisturbed furrow shoulders.  Packing force is concentrated more so on the
shoulder and the packing on the seedbed is reduced. In addition to reduced packing action,
fertilizer placement is also adversely affected.  Optimum performance, of course, is seeding in a
straight path as much as possible.  It is also important to turn right to keep the fertilizer out of
the seed row.

4.31.4 LOW PACKER TIRE PRESSURE

For packer tires that are air inflated: if the packing forces are high and the tire pressure is low,
effective packing action is reduced. The tire widens and rides harder on the furrow shoulders.