Seed Hawk GRANULAR AND LIQUID TANKS 2009 - Manual (Page 24)

Seed Hawk Manual Granular and Liquid Tanks Page 22
4.2 FAN(S) (OPTIONAL) (3/4” NON COLOR CODED)
Connect the pair of 3/4” hydraulic lines to supply the hydraulically driven fan
motor.
This tractor lever is locked in full pressure position while seeding.
4.3 CASE DRAIN(S) (TWO ½” HOSES ONE WITH A
YELLOW BAND)
You must also connect the case drain lines (1/2”) to return hydraulic fluid back
to the tractor reservoir. One case drain line is a 1/2” (13 mm) line from the fan.
The other case drain line is a 1/2” (13 mm) line from the hydraulic manifold.
The case drain line(s) MUST return to the tractor UNRESTRICTED. Failure to
do so can cause damage to the hydraulic cylinders or fan motor and will void
Manufacturer’s Warranty.
Seed Hawk recommends that there are two separate case drains into the
tractor!
4.3.1 Average hydraulic requirements according to each
circuit:
Circuit 3 and or 4 : Fan(s) (continuous when seeding)
9 – 13 gpm (35 – 50 lpm) Single Fan (standard)
18 – 24 gpm (68 – 90 lpm) Dual Fan (optional)
Case Drain from Fan(s) (return flow)
1 – 2 gpm (4 – 7 lpm) return