Seed disc maintenance, Cleaning and storing seed discs – Great Plains YP4425A Operator Manual User Manual
Page 103
Great Plains Manufacturing, Inc.
Maintenance and Lubrication
99
2012-02-23
401-805M
Seed Disc Maintenance
Refer to Figure 117
When removing seed discs, 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 discs and re-inspect.
Replace discs for conditions including:
• Chips at circumference
• Chips at edges or in sculpted surfaces of cell
pockets
. These can leak air and/or adversely affect
singulation.
• Cracks over 2 inches (5 cm) long in the working
face
of the disc, or any cracks in support webs or to
an edge.
• Warping - if any part of the disc does not press firmly
on the seed drop brushes (page 77) in operation,
replace the disc.
• Wear - if a wiper ridge is worn away, replace the disc.
If the seed pockets are worn through, or the air
ports
have enlarged, replace the disc.
Cleaning and Storing Seed Discs
Possible Chemical Hazard:
Wear gloves when washing discs. Avoid spray. Do not wash
discs where food is prepared, or where cookware or
dinnerware is washed. Seed discs will have talc and graphite
residue, and may have residues of hazardous seed treatments.
Although the discs are dishwasher-safe, do not wash them in
an appliance 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 discs are washed, allow them to dry completely prior to
storage.
Retain original shipping cartons for disc storage.
Otherwise, store them on edge (and not leaning), or
stacked horizontally on a spindle, to eliminate any risk of
warps. Any seed residue on discs may attract pests.
Fully enclose dry discs to prevent rodent damage.
Figure 117
Disc Seed Cells and Wiper
29613
2
1
4
5
3
2