Seed Hawk AIRCART 2013 - Manual (Page 32)

SEED HAWK
®
AIRCART OPERATOR’S MANUAL 27
4.5 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.
4.5.1 TRACTOR HYDRAULIC REQUIREMENTS
Fan Circuit(s) (continuous when seeding)
9 – 13 gpm (35 – 50 lpm) Single Fan
18 – 24 gpm (68 – 90 lpm) Dual Fan
Case Drain from Fan(s) (return flow)
1 – 2gpm (4 – 7 lpm) return