Liquid fertilizer operation (option) – Great Plains YP825AR Operator Manual User Manual
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YP825AR
Great Plains Manufacturing, Inc.
401-923M
2014-06-17
Liquid Fertilizer Operation (Option)
The pump is driven by a dedicated ground wheel tire.
When the ground wheel arm is unlocked, the planter is
lowered and in motion, the pump operates, and fertilizer
is applied based on fertilizer transmission sprockets and
pump adjuster setting.
Great Plains recommends checking with your local
agronomist, as soil conditions vary. Conditions in your
area may need less or more fertilizer than represented in
the charts. For in-furrow applications, do not exceed
12 gallons per acre in any case.
The liquid fertilizer system is designed to operate
(ideally) between 15 and 40 psi. Several system
elements affect system pressure, and need initial setup,
periodic maintenance, and adjustment when changing
seed rates.
These steps presume that fertilizer has been loaded
(and other setup items completed) per “Loading Liquid
Fertilizer (Option)” on page 39 and page 40 (and per
the Seed and Fertilizer Rate manual 401-923B).
Refer to Figure 129 on page 135
1.
Confirm Quick-Fill inlet valve
Closed:
handle to planter left.
2.
Set selector valve
to Pump:
handle to planter rear.
3.
Set tank discharge valves
to Operate:
handles toward plumbing to selector valve.
4.
If relief valve
has not been previously adjusted,
perform initial setting per page 59.
Prime the fertilizer system before filling meter disks (to
avoid wasting seed, as it usually takes more than one
meter revolution to fill the boom).
5.
Shut off the fan.
6.
On suitable ground, lower the planter.
7.
Pull forward until the fertilizer gauge
registers
some back-pressure from the boom.
8.
Open row slide gates and meter shutters.
9.
Monitor the fertilizer gauge. Make relief valve
adjustments per page 59.
10. Mind the fertilizer tank levels while planting, both to:
a. confirm expected consumption rate, and;
b. avoid running the pump dry.
11. If residual fertilizer is not recovered at end of
planting, apply it to the last field planted. Turn fan off
to prevent metering seed or remove a meter drive
system chain. Optionally lock up rows to reduce row
unit wear (page 78).
12. Clean out fertilizer system per page 98.
Agricultural Chemical Hazard:
Avoid contact with skin or eyes. Wear proper protective
equipment as required by chemical manufacturer. Avoid
prolonged breathing of chemical fumes. Wear respirator as
required by chemical manufacturer. Some chemicals will cause
serious burns, lung damage, and death. Seek medical
assistance immediately if accident occurs. Know what to do in
case of accident.
Equipment Damage/Material Misapplication Risks:
Do not run pump dry. With the ground drive arm lowered and
all drive chains in place, the pump always runs when the
planter is lowered and in motion. Air rapidly damages a pump.
Keep fluid in pump at all times. Disconnect a chain when not
applying fertilizer.
If fertilizer is exhausted prematurely, reload fertilizer
immediately. If fertilizer is not available, load clean water,
continue planting with pump operating (to flush system), and
disconnect pump drive before water is exhausted (to keep
pump wet).
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