CrustBuster 5500, Руководство пользователя, Страница: 13 / 32

Calibration and Seed Rates
Calibration/Drilling Rates
Planting the right rate can be frustrating.
Sometimes the end result is not what the
rate chart indicates. Seeding rate is affected
by seed size, seed treatments, foreign
material, test weight, and tire air pressure.
1. Always plant clean seed.
2. Check tire air pressure.
3. Seed treatments vary by type and time
of application.
Some seeds are treated at the processor.
Drill box treatments are common methods
of application. Each of these can "gum" up
the wobble slot cup halves and reduce final
seeding rate. Treated seed often flows
differently than non-treated seed.
A general method for checking quantities
drilled is as follows:
1. Set drill for desired seeding rate.
2. Fill the box level; then pull drill for a
short distance to settle seed. Refill box
exactly level full.
3. Drill a calculated one acre.
4. Carefully weigh the seed required to
refill the box level full.
5. Compare the amount used versus that
stated on the rate chart.
6. Adjust seeding rate by changing the
sprocket combination or wobble slot
width.
A stationary rate check can be made by
manually turning the drive wheel. To
complete this procedure:
1. Set drill for desired seeding rate.
2. Place a sufficient amount of seed in box
to complete test. Raise drill.
3. Place a tarp or other material under
opener seed drop to catch seed.
4. Turn drive wheel the required number of
times to plant one-tenth acre. (See chart
below).
Drill Width Turns of
Drive Wheel
27' 21
30' 18
5. Collect seed from tarp and carefully
weigh it.
6. This weight times ten is the calculated
seed rate per acre.
7. If this is not the desired seeding rate
a d j u s t b y c h a n g i n g s p r o c k e t
combination or wobble slot width.
8. Repeat rate check.
Another method involves catching seed
from one or more seed cups and utilizing a
density scale to determine actual rates.
These scales are commercially available,
inexpensive and very easy to use.
Information can be obtained from
CrustBuster®/Speed King, Inc.
Drive Wheel
The drive wheel should not require any
adjustment. Make sure frame height is low
enough to cause drive wheel to stay firmly
in contact with ground.
Scraper Blade Replacement
Opener blade inside scrapers are spring
loaded and require no adjustment. To
replace the scraper blades, remove rear
lock nut and slide both blades from stem.
Assemble with new blades and replace onto
stem being careful not to overtighten lock
nut.
NOTE: Do not over tighten lock nut. Be
sure scrapers move freely. Failure
to do so will result in damage to
scrapers and proper operation of
scrapers.
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