Seed Hawk 30 SERIES 2014 - Manual (Page 77)

SEED HAWK ® 2014 30 SERIES OPERATOR’S MANUAL – DOMESTIC 71
5.15.2 Muddy Soil Conditions
5.15.3 Operating Curves and Corners
Seeding depth may be altered if mud sticks to the packer tire. If mud is only
¼-3/8 in. (6-10mm) 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.
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 ad-
versely affected. Optimum performance, of course, is seeding in a straight path
as much as possible. It is also important to turn right as much as possible to
keep the fertilizer out of the seed row. When turning, the configuration of the
fertilizer sideband is less to cause seed burn when turning in a right-hand arc.
5.15.4 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. This can be corrected by increasing tire pres-
sure and/or reducing downward packing force.
A bulging packer tire will cause the seed and fertilizer to be placed lower than
the initial setting on the opener. One indicator of low packer tire air pressure
is when it has less mud build up on it.
Seed Knife
Seed Furrow
Packer Tire
Seed
Fertilizer Knife
Fertilizer
Fertilizer Furrow
Final Packed
Surface
Under Inflation Proper Inflation