Great Plains | 166-486M | 2019/01/29
52
Spartan
II
607
Operation
Fan Field Operation
Machine Damage Risk
Always engage the fan with the tractor at a
low engine speed. Engaging the fan when
the tractor is at high speed may cause fan
damage. Do not reverse hydraulic flow with
the fan running.
1. Unfold the implement (page 27).
2. Set the fan circuit lever to neutral.
3. With the tractor engine at low rpm, slowly extend
the lever for the fan/fold circuit. Bring the fan up to
recommended speed. Let the fan warm up for 15
minutes before planting.
4. Lower the drill a distance of 1.5 to 3m before
planting is to begin. It takes a few seconds for
seed to travel from the meters to the rows.
5. Leave the fan running during field turns. The
meter drive is shut off when the openers are
raised.
6. At the end of application, raise openers. Stop
material flow before shutting off the fan.
7. Shut off the fan by carefully moving the fan circuit
lever to float (preferred) or neutral. Avoid moving
the lever into retract.
The fan does not stop instantly. A check valve in
the fan circuit locally re-circulates oil until the
blades coast to a stop.
Air System Adjustments
There are two adjustments for the air system:
1. Fan rpm, which controls manifold air pressure,
hopper air pressure, and material delivery
velocity.
2. On dual-hopper drills (either single- or
double-shoot) there are gates in the manifold
(page 53). The adjustments control the balance
of air flow to each meter. This adjustment is not
present on single-hopper drills.
There is no direct adjustment for hopper pressure.
The table figures are included for setting alarm limits
in the terminal. If a pressure alarm occurs, do not
adjust the fan or manifold gates to compensate. The
cause is usually a leak or a major blockage.
Air System Settings
Fan Speed
The specific fan rpm required varies considerably
with drill configuration, material density, application
rate, field speed and material properties. Develop
and record settings that are suitable for your
operations.
Machine Damage Risk
Always engage the fan with the tractor at a
low engine speed. Engaging the fan when
the tractor is at high speed may cause fan
damage. Do not reverse hydraulic flow with
the fan running.
!
Fan rpm
Limits
Minimum
Maximum
2000 rpm
to
4500 rpm
Typical Range
Minimum
Maximum
Milo
3250 rpm
to
4000 rpm
Soybeans
2750 rpm
to
3500 rpm
Sunflower
2250 rpm
to
3000 rpm
Wheat
3250 rpm
to
4000 rpm
Manifold
Pressure
Typical Range
Minimum
Maximum
12 in H
2
0
to
25 in H
2
0
30 cm H
2
0
to
64 cm H
2
0
30 kPa
to
64 kPa
3050 bar
to
6350 bar
4.4 psi
to
9.2 psi
Hopper
Pressure
Limits
Alarm Limits
Minimum
Maximum
1.3 kPa
to
8.6 kPa
130 bar
to
860 bar
13 cm H
2
0
to 88
cm
H
2
0
0.19 psi
to
1.25 psi
5 in H
2
0
to
35 in H
2
0
!