Great Plains 3N-3020 Operator Manual - Manual (Page 56)

3N-3010 and 3N-3020
196-366M 3/29/2012
54
17621
Figure 44
Marker Maintenance
Refer to Figure 44
The marker arm is attached to marker body with a
3/8-inch, grade 2, shear bolt. If this shear bolt
breaks, replace it with a grade 2 bolt.
Note: Failure to replace the shear bolt with a
grade 2 bolt can cause marker damage.
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
opener.
• Use a large bucket to empty box as much as
possible. For seed cup cleanout, move han-
dle to the fourth position, see page 39.
2. Thoroughly clean seed and seed-treatment
residue from boxes and seed cups.
3. 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 55.
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.