Great Plains 3PYPA Operator Manual - Manual (Page 110)

106 3PYPA Table of Contents Index Great Plains Manufacturing, Inc.
401-647M Table of Contents Index 03/20/2012
Seed Disk Maintenance
Refer to Figure 130
When removing seed disks, inspect them for wear and
damage. If there is any seed dust or treatment build-up in
the cell pockets
, or along the raised wiper ridges ,
clean the disks and re-inspect.
Replace disks for conditions including:
• Chips at circumference . These will leak air.
• Chips at edges or in sculpted surfaces of cell
pockets . These can leak air and/or adversely affect
singulation.
• Cracks over 2in (5cm) long in the working face of
the disk, or any cracks in support webs or to an edge.
• Warping - if any part of the disk does not press firmly
on the seed drop brushes (page 78) in operation,
replace the disk.
• Wear - if a wiper ridge is worn away, replace the disk.
If the seed pockets are worn through, or the air
ports
have enlarged, replace the disk.
Cleaning and Storing Seed Disks
Possible Chemical Hazard:
Wear gloves when washing disks. Avoid spray. Do not wash
disks where food is prepared, or where cookware or dinner-
ware is washed. Seed disks will have talc and graphite residue,
and may have residues of hazardous seed treatments. Although
the disks are dishwasher-safe, do not wash them in an appli-
ance also used for food preparation or food serving items.
Use warm or hot water, mild soap, and a sponge or soft
brush to remove build-up.
If disks are washed, allow them to dry completely prior to
storage.
Retain original shipping cartons for disk storage. Other-
wise, store them on edge (and not leaning), or stacked
horizontally on a spindle, to eliminate any risk of warps.
Any seed residue on disks may attract pests. Fully
enclose dry disks to prevent rodent damage.
Metadata: End of “Meter Brush Maintenance”.
Null4:
Figure 130
Disk Seed Cells and Wiper
29613
1
2
1
4
5
3
1 2
3
1
4
5