Vacuum Meter Inspection and Service

Annually inspect seed meter for wear and chemical/seed treatment build-up.

NOTE: When replacing brush:

Insert narrow end (B) into slot first.

Snap brush into slot until it contacts side of meter housing (C).

1. Check brush (A) for gaps. If gaps are big enough to allow seed to pass through, replace brush.

A-Brush
B-Narrow End
C-Housing
D-Seal

720012FFOMSE,F3 -19-18MAY93-1/2

NOTE: Before replacing seed disks, perform a field check to determine if the disk is metering seeds accurately. (See CHECKING SEED POPULATION in the Operating the Seed Meter section.)

It is not necessary to replace the seed disk if its metering performance is satisfactory.

2. Replace hub seal (D) if cracked or weathered.

3. Check seed disks for wear in the following areas. Replace as needed.

A small amount of wear around the perimeter of the disk is acceptable. If wear occurs, check to see if seed can leak through the gap between the disk and housing.

Seed leakage may be eliminated by adjusting meter hub. See ADJUSTING METER HUB in Preparing for Use Section.

Inspect the individual seed cells. The abrasion of the seed may cause wear of the sharp corners, which increases cell size. (This could result in over-population when planting small seed or under-population when planting large seed). Replace the seed disk if the size of cell is significantly increased and field checks determine a reduction in accuracy.

Small grooves or scratches are acceptable on the vacuum side of seed disk.

Wear around the perimeter of the disk is acceptable up to an approximate depth of 1.0 mm (3/64 in.).

720012FFOMSE,F3 -19-18MAY93-2/2