Operating instructions

36 YP2425F/YP4025F Table of Contents Index Great Plains Manufacturing, Inc.
403-362M Table of Contents Index 2013-03-25
Meter Flute Replacement
Fertilizer meter flute stars wear over time, and can be
chipped or fractured by hard foreign matter, such as
rocks or ice. Inspect flutes periodically. Replace as
needed.
To remove the flute shaft:
Refer to Figure 21
1. Perform a hopper clean-out (page 35).
2. Dismount the rpm sensor (not shown) from the left
end of the shaft . Dismount the Driven Range
gear at the right end.
3. Remove the six
1
⁄
4
-20 self-tapping screws from
the outside of the flange at the shaft right end.
4. Pry the flange loose from the meter housing (the
flange is sealed to the housing with silicone).
5. Remove the meter shaft.
6. When replacing stars (each of which is two
817-018C halves), be sure to match the irregular
arrangement of stars and spacers as shown in the
Parts manual.
7. Clean any residual silicone sealant from the shaft
flange and meter box housing. Apply fresh sealant.
8. Re-insert the shaft.
9. Secure the flange to the box housing.
Carefully re-insert the screws. Avoid cross-threading.
Do not exceed 7 N-m (5 ft-lbs) of torque.
10. Re-mount the rpm sensor on the shaft left end, and
the Range gear at the right end.
Problem Fertilizer Clean-Outs
For normal unloading of residual materials at completion
of planting, see “Material Clean-Out” on page 35.
If, however, parking and storage recommendations have
not been followed, it is possible to have hard-to-remove
material present.
If the material fails to pass through the fertilizer meter
clean-out door, take the following steps to remove it. Do
not consider entering the hopper until first completing
these tasks.
Open the clean-out door (page 35).
Remove the strainer (page 12) and evaluate the
problem.
For small amounts of residual materials, poking with a
long pole may suffice to push it through the clean-out.
If poking doesn’t produce satisfactory results, and you
intend to try wash-out, at least poke one hole down to the
meter clean-out, so that water can flow out.
For example:
• If the problem is a single moveable large object, such
as a dead animal, fishing out from above may be the
solution.
• If the problem is congealed materials, scoop out a
sample from above and see if the mass dissolves in
water. If so, and there is a small amount of the material
involved, rinsing, or rinsing and pumping the hopper
from above may be the solution.
If wash-out is contemplated, start by introducing a small
amount of water, and make sure that it appears at the
clean-out within 15 minutes. If not, you will just be adding
water to the problem. The hopper is not designed to hold
water at full capacity. Add no more water, remove meter
box instead, and clean out from below.
Figure 21
Remove Meter Flutes
31016
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3
2
4
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2
3
4