8 seed hawk, Pressurized metering system, 9 checking air & product flow – Seed Hawk AIRCART 2014 User Manual
Page 22

SEED HAWK
®
2014 AIRCART OPERATOR’S MANUAL
SEED HAWK
®
2014 AIRCART OPERATOR’S MANUAL
36
4.8 Seed Hawk
®
Pressurized Metering
System
With the Seed Hawk
®
pressurized metering system product can be diverted
to either air stream. This gives the Aircart ultimate flexibility by allowing the
option of diverting any product to either the seed knife or the fertilizer knife. To
change the air stream that a meter will deliver product to, adjust the diverter
valve on the side of the meter body.
NOTE: This meter is only
designed to send product
into one air stream at a
time. Seed Hawk
®
takes no
responsibility for damage and
cannot guarantee accept-
able seeding performance if
the diverter valve is set in
between air streams.
37
4.9 Checking Air & Product Flow
The test procedure outlined below serves as a guideline for ensuring proper fan
speed for effective delivery of product:
1. Remove hose(s) from an outside opener and temporarily attach to the frame
of the seeder with the hose looping no more than 12 in. (300mm) below the
frame.
2. Begin seeding at normal field speed and observe distance product discharges
from hose(s) attached to the frame.
All product should discharge within a
range of 12-24 in. (300-600mm).
3. Adjust fan speed, if necessary, to ensure optimum air flow for product dis-
charge.
DO NOT set fan speed above 5000 rpm. Excessive fan speed will
damage the fan drive motor and requires more power from the trac-
tor hydraulic system.