Great Plains 3PNG15 Operator Manual - Manual (Page 36)

32 3PNG12 and 3PNG15 Great Plains Manufacturing, Inc.
202-553M 10/06/2008
Marker Shear Bolt
If a marker arm encounters an obstruction, a bolt:
802-253C HHCS 3/8-16X1 3/4 GR2
at the outer hinge is designed to fail, allowing the arm to
swing back.
Replace this bolt with an identical Grade 2 bolt. Using a
higher grade bolt can lead to equipment damage. Using
a lower grade bolt may result in nuisance shears.
If a Grade 2 bolt is not immediately available in your
region, substitute a metric M8X1 Class 8.8 bolt and nut.
Seed Clean-Out
Main Box Clean-Out
Refer to Figure 24, which depicts the seed cup door handle
in a normal operating position
.
1. Set the Seed Rate Handle to zero (0). This moves
the seed cup sprockets out of the seed path.
2. Position a tarp or bucket under each row or set of
rows to be cleaned out.
3. At the seed cup for that row, pull the door handle
out of the operating detent range, and swing it down
to position
.
4. Open the main seed box and use a small brush to
sweep seed toward seed cups set to clean-out. If
seed does not flow freely, inspect seed cup, hose
and seed tubes for obstructions.
5. Wash out the seed box with high pressure water.
It is not necessary to operate the seed meter drive shaft
for clean-out. With the Seed Rate set to zero, nothing
moves inside the seed cups; however, an inspection of
the flutes for excess wear and damage does require
shaft rotation.
Set the Seed Rate Handle to 100. Raise and lock-up the
drill. Turn the seed meter drive with the calibration crank,
while another person inspects the flutes from the open
seed boxes.
Figure 23
Marker Shear Bolt
11010
11
11
3
Figure 24
Seed Cup Clean-out
26211
4
3
3
4