YP3025A
Maintenance and Lubrication
101
2019-06-12
401-705M
Meter Brush Maintenance
Possible Chemical Hazard:
Wear a respirator for brush cleaning. Brushes will have talc
and graphite residue, and may have residues of hazardous
seed treatments.
A HEPA vacuum cleaner is recommended for brush
cleaning. Washing brushes is not recommended and
may cause matting. Do not scrape them with sharp
instruments.
The first indications of excess brush or damage wear are
normally observed on the seed monitor or in air system
operation.
•
If the tufted brushes
are worn/damaged, the seed
“double” rate rises, increasing population.
Finding an occasional cracked seed “hung up” on a
tuft fiber is not uncommon, and is not an indicator
that brush maintenance is required. Merely remove
the seed.
•
If the strip brushes
are worn/damaged, air
pressure regulation may become unstable, or
require increasing fan speed over time.
If you find you need to exceed recommended fan
rpm ranges, the regulated air system may be taking
too much air due to meter leakage.
In severe cases, seed may leak past the strip
brushes, causing spikes in population. If you
frequently observe seed in between the strip
brushes, one or both may need replacement.
•
If the seed drop brush
is worn/damaged, its
anti-static effect may fade, which can result in “skips”
due to smaller seeds failing to release, and lower
populations.
If an obvious groove is worn in the drop brush,
replace it.
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6
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Figure 116
Brushes
29608
