Great Plains 3N-4025P Operator Manual - Manual (Page 82)

3N-4010P, 3N-4015P, 3N-4020P and
3N-4025P
196-286M 4/23/2010
80
Marker Maintenance
Refer to Figure 117
The marker arm is attached to marker body with a
7/16” x 2”, grade 5, shear bolt (1). If this shear bolt
breaks, replace it with a grade 5 bolt.
NOTE: Failure to replace the shear bolt with a
grade 5 bolt can cause marker damage.
Before installing shear bolt, tighten the 5/8” x 5”
bolts (2) just enough so the marker shear arm (3)
will move with some resistance when pushed by
hand.
NOTE: The above step should be repeated at the
beginning of each drilling season.
If grease-seal cap for marker-disk-hub bearings is
damaged or missing, disassemble and clean hub.
Repack with grease and install a new seal or
grease cap.
Storage
Store the drill where children do not play. If possi-
ble, store the drill inside for longer life.
1. Unload seed box:
• Place tarp under drill or a bucket under each
seed meter.
• Use a large bucket to empty box as much as
possible. Make sure sliding seed tubes are in
the open position. Open seed meter clean out
to empty seed out of sliding seed tube and
meter.
2. Thoroughly clean seed and seed-treatment
residue from boxes and seed meters.
3. Remove seed meter wheels. Store flat and
out of the weather.
4. Remove any dirt and debris that can hold
moisture and cause corrosion.
5. Lubricate and adjust all roller chains.
6. Lubricate areas noted under “Lubrication”,
page 81.
7. Inspect drill for worn or damaged parts. Make
repairs and service during the off season.
8. Use spray paint to cover scratches, chips and
worn areas on the drill to protect the metal.
9. Cover with a trap if stored outside.
22514
Figure 117
Marker Shear Bolt