Seed Hawk GRANULAR AND LIQUID TANKS 2009 - Manual (Page 26)

Seed Hawk Manual Granular and Liquid Tanks Page 24
4.5 SEEDHAWK PRESSURIZED METERING SYSTEM
FAN(S)
Some models are configures with a single fan while others may be configured
with dual fans. Fans are driven by hydraulic motors with speed controlled by the
tractor hydraulic flow system. Fan speed is indicated on the monitor panel in
the cab.
Set fan speed to effectively transport the seed. A reminder that higher fan
speeds will increase seed bounce, and possibly damage the seed. Higher fan
speeds also require more power input from the tractor.
Typical fan speed ranges for various product types are listed below for
reference:
PRODUCT FAN SPEED (rev/min)
Oilseeds 2000-3000
Cereals 2500-4000
Pulse Crops
3500-4200
Fertilizer (granular) 3500-4200
NOTE: Fan Speed is dependent on implement size and tractor hydraulic
output.
NOTE: If tank is equipped with two fans, if one fan is not being used, it
must be ran at low rpm due to pressurization of meters.
1
2
Product can be diverted to either air stream (Fig 32 – 1&2) this will give you
the ability to maximize your tank compartment capacities and the ability to
blend product.
FIG. 32