Seed Hawk Ground Drive: Granular & Liquid 2011 - Manual (Page 30)

Seed Hawk
®
Manual Granular and Liquid Tanks Page 25
4.4 CASE DRAIN LINES
You must also connect the case drain lines (two 1/2” hoses, one with a yellow band) 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 Inc. recommends that there are two separate case drains into the
tractor reservoir.
4.4.1 Average hydraulic requirements according to each circuit:
9 – 13 gpm (35 – 50 lpm) Single Fan
Circuit 3 and or 4: Fan(s) (continuous when seeding)
18 – 24 gpm (68 – 90 lpm) Dual Fan
1 – 2gpm (4 – 7 lpm) return
Case Drain from Fan(s) (return flow)