GREAT PLAINS Yield-Pro PL5800, Operator'S Manual

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PL5800 Planter Table of Contents Index Maintenance
Great Plains | 411-474M | 12/17/2019 63
Proper attention to maintenance, end of the day
clean-out, and winterization can substantially
increase the life and reliability of your fertilizer
system. Protect the pump, clean the tanks, strainers,
lines, and nozzles, and avoid costly, and time
consuming repairs at the next season.
Fertilizers are usually highly corrosive to metals other
than stainless steel. Suspension fertilizers can clog
system components in storage.
1. Flush the entire system with clean water.
2. Remove strainer and drain it. Drain all lines and
tanks completely to prevent freezing damage.
3. Flush the pump according to the pump supplier
manual. Fill the pump with RV antifreeze and cap
off.
Pump Damage Risk:
Do not leave fertilizer or fertilizer residue in
the pump. Do not allow air to enter the
pump. Even for short periods of storage, the
entrance of air into the pump causes RAPID
and SEVERE corrosion.
4. Wash all spilled fertilizer off the planter.
Liquid Fertilizer Strainer
The fertilizer system uses an in-line strainer to keep
damaging particulates out of the pump. The strainer
becomes clogged over time, reducing the pump rate.
Clean the strainer several times per season. Do not
wait until application rates fall below target. Higher
quality liquid fertilizers may require less frequent
cleaning.
Disassemble and clean the strainer before storage to
prevent caking.
In Season Filter Cleaning
1. Shut off the ball valve at the filter to minimize
product spill.
2. Unscrew and remove the bottom canister (1) of
the filter.
3. Wash the filter cartridge (2) with water or replace
with new cartridge, if necessary.
4. Reinstall the cartridge, canister, and turn on the
ball valve.
End of Season Filter Cleaning
1. Load 10 to 15 gallons (40 to 60 liters) of clean
water in each tank.
2. Pump most of the water through the system. If
doing this by hand-turning the ground drive
wheel, first install the largest drop-line orifice size
and set the pump adjuster to maximum to
increase flow.
3. With the valves open, remove the filter canister.
4. Cleans the strainer and canister.
5. Drain the takes and lines.
6. Reinstall the strainer and canister.
7. Add 2 pt (1 liter) of RV antifreeze to each tank.
8. Open the supply line above the pump inlet.
9. Add RV antifreeze and operate the pump until it
is filled.

Seed Flap Replacement
To replace a seed flap (1) (part number 816-302C):
1. Use a needle nose pliers or similar tool to grasp
the “T” at the top of the flap.
2. Pull up to pull the flap up out of the metal bracket
(2).
3. Push the new seed flap down through the metal
bracket until the flaps into place with the “T” top
resting on top of the bracket.
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