Great Plains PT8030 V1015 Operator Manual - Manual (Page 17)

15
Section 2 Operating Instructions
4/12/05 PT6030 and PT8030 Pull-Type Planter 401-032M-B
Great Plains Mfg., Inc.
Secure wing nuts as shown in Figure 2-3.
14949
Figure 2-3
Discharge Manifold Forward Position–In Use
When the pump is not in use, reposition the pump manifold
to prolong the life of the hoses in the squeeze pump. To re-
position the discharge manifold to the rearward position,
loosen the wing nuts and push the manifold back as
shown in Figure 2-4.
14950
Figure 2-4
Discharge Manifold Rearward Position–Parking
For more information on preparing the squeeze pump for
parking and storage, refer to Squeeze Pumps, “Mainte-
nance and Lubrication,” page 43 and the John Blue
manual provided with the pumps.
Figure 2-2
16866
Chemical Hopper
Marker Operation
Markers can be raised simultaneously but must be low-
ered one at a time. If both markers are required down at
the same time, run one marker down, momentarily start to
raise it, reverse the hydraulic lever and lower the opposite
marker. Holding the lever down will force both markers
down.
On a tractor where the oil flow cannot be controlled, the
rate of flow of oil from the tractor may be greater than the
rate at which the marker cylinder can accept it. The tractor
hydraulic control lever will have to be held until the cylinder
reaches the end of its stroke. This occurs most often on
tractors with an open-center hydraulic system.
On tractors with a closed-center hydraulic system, the
tractor’s hydraulic flow control can be set so the tractor’s
detent will function properly.
Liquid Fertilizer Operation
!
WARNING!
Agricultural chemicals can be dangerous if not selected and
handled with care. Always read and follow directions supplied
by the chemical manufacturer.
For accurate metering, keep pump speed below 125 rpm.
To operate the pump, the discharge manifold must be in
the forward position as shown in Figure 2-3. Pumps are
shipped in the rearward position.
To position the manifold forward for operation, loosen the
wing nuts on the manifold and pull the manifold forward.