Yetter Systems One Seed Jet II Closed Center Hydraulic System - Manual (Page 2)

2
TRACTOR PREPARATION
CLOSED CENTER HYDRAULIC SYSTEM
TRACTOR HYDRAULIC SYSTEM REQUIREMENTS
For proper operation your tractor hydraulic system must be able to pump 12 gallons per minute at a pressure of 1000 psi.
The speed of the blower depends upon the hydraulic capability of the tractor it is attached to.
Hydraulic remote outlet for blower drive motor
The control lever for the outlet will need to be held in a continuous flow position (closed center system). A selective
control valve lever stop must be used to avoid damaging the hydraulic motor seals when shutting off hydraulic oil flow. To
shut off blower motor move lever forward into float position. If your tractor has a load sensing system “detent”, you should
adjust it for operation above 1000 psi. See your tractor operator’s manual for instructions on how to adjust the “detent”.
The hydraulic motor return line (3/4” not supplied) must be plumbed directly to the tractor oil reserve at a back
pressure of 0 psi. If the back pressure exceeds 50 psi. the seals in the hydraulic motor will fail and may damage the
motor. Consult your tractor manual or dealer for parts required and installation. NOTE: A quick coupler can be used on
the return line, but it must be a full flow non-restricted coupler such as used air/vacuum planter with tractor hydraulic
operated blower motor.
TRACTOR ELECTRICAL REQUIREMENTS
Electrical-minimum 10 amps @ 12 volts surging to 20 amps max.
12-14 ga. wire
connect wire to the 1300-614 solenoid box on the airlock using (2) 2570-612 butt connector 12 ga.