M0258-01Model 3500
6-16 9/14
TM
Lubrication and Maintenance
Seed disc
BRUSH-TYPE SEED METER MAINTENANCE
Use clean, high quality seed. Damaged or cracked seed, hulls, or foreign materials can become lodged in upper brush
and greatly reduce meter accuracy. Remove seed disc daily and check for buildup of foreign material on seed disc,
particularly in seed loading slots. Clean disc by washing it with soap and water. Check for cracked seed, hulls, etc.
lodged between brush retainer and stainless steel wear band which can greatly reduce accuracy of the meter because
upper brush will not be able to retain seed in seed disc pocket. Thoroughly clean brush areas of meter housing.
Lower brush
Upper brush retainer
Stainless
steel wear
band
Meter housing
Upper brush
Seed loading slots
Seed pocket
Agitation
groove area
(Shaded area)
- where most
wear occurs
SEED DISC WEAR
Most seed disc wear is found in the agitation groove area (area
between seed loading slots). Wear affects planting accuracy at
high RPM. Lay a straight edge across disc surface at agitation
groove area and measure gap between disc and straight edge.
If agitation groove areas are worn in excess of .030"
(7.6 mm)
and accuracy starts to drop off at higher meter RPM, replace
seed disc. Estimated seed disc life expectancy under normal
operating conditions is approximately 200 acres
(81 hectares)
per row. Severe operating conditions such as dust, lack of
lubrication or abrasive seed coating could reduce seed disc life
expectancy to under 100 acres
(40.5 hectares)
per row.
Brush-type seed meter seed disc installed Brush-type seed meter parts
Stainless steel
wear band
Area where most wear
occurs on wear band
STAINLESS STEEL WEAR BAND
Stainless steel wear band protects meter housing from wear
and is .030" (.076 cm) thick. Replace wear band when there
is approximately .020" (.050 cm) of wear in primary wear
area. Estimated life expectancy of stainless steel wear band
is 240-800 acres (97-324 hectares) per row.
Stainless steel wear band
If wear band wears through or if meter is
used without wear band in place, meter
housing may be damaged.
NOTICE
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