How To Change Meter Rollers

IMPORTANT: Avoid meter binding. Use standard wear plates or green meter rollers when small seed sizes approach 6 mm (0.25 in.). Use orange roller for any seed over 6 mm diameter.

NOTE: Field peas and chick-peas sometimes wedge between the meter housing and the fine-tuning rings. When product wedges in the meter, the meter is hard to turn. Remove the fine-tuning rings and recalibrate. When fine-tuning rings are removed, the rate charts and the standard calibration values no longer apply.

NOTE: The Very High Rate Meter is able to deliver enough product to overload the product tubes. Use the monitor calculation function to ensure that the application rate does not exceed 13.6 kg/min (30 lb../min).

NOTE: When high rates of product are metered to a seeding tool with three or four secondary manifolds, either install additional secondary manifolds or reduce ground speed.

A77882
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A - Low Rate Meter Roller

B - Regular Rate Meter Roller

C - High Rate Meter Roller

D - Very High Rate Meter Roller

E - Large Seed Roller

Five types of fluted meter rollers accommodate various different products, product delivery needs, and application rates. The rollers are color-coded for easy identification.

• Yellow (A) — Low Rates and granular products: Use with low rate products such as flax, canola, and alfalfa.

• Black (B) — Regular Rates: Most commonly used with wheat, barley, and small soybeans. Also used with fertilizer.

• Green (C) — High Volume Rates: Use with soybeans (less than 6 mm diameter) and high rates of fertilizer.

• Blue (D) — Very High Rates: Use with large seeds, barley, oats with beards, and with high rates of fertilizer up to 295 kg/ha (265 lb./acre).

• Orange (E) — Large Seeds: Use with all seed over 6 mm in diameter including chick-peas, large field peas, and large soybeans (over 6 mm). Not for use with fertilizer or cereal crops.

To change rollers and application rate, perform the following.

  1. A74370
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    A74371
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    A60043
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    A60044
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    A - Cap Screw

    B - Collar

    C - Handle

    D - End Cap

    E - Flange Nuts

    F - Bushing

    G - Enclosure

    H - Meter Roller

    Remove meter cartridge assembly from housing.


  2. Remove cap screw (A), lock nut, and collar (B).

  3. Remove flange nuts (E) and handle (C).

  4. Remove end cap (D) and bushing (F).

  5. NOTE: Each meter segment consists of an enclosure, meter roller assembly, wear plate, and brush. Do not mix segment components.

    Number every enclosure (G) and divider in order. Components must be returned to original locations when procedure is complete.

  6. Remove enclosure (G).

  7. NOTE: If tuning rings or meter rollers are reinstalled in a different order, product distribution is affected.

    Note number of tuning rings on meter roller (H) before removing roller. Keep roller components and corresponding enclosure together. Do not mix segment components.

  8. A60053
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    A60055
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    A60054
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    A - Meter Roller

    B - Beveled Edge

    C - Snap Ring

    D - Bearing Plate

    Remove meter roller (A) assembly from shaft.


  9. Locate beveled edge (B) on roller.

  10. Remove snap ring (C) and bearing plate (D) from same side as beveled edge.

  11. Remove meter roller. Note number of tuning rings. Install same number of tuning rings on replacement meter roller (See TUNE METER SEGMENT OUTPUT TO TOWER SIZE in this section). Assemble replacement meter roller, bearing plate, and snap ring.

  12. A60056
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    A60057
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    A - Standard Wear Plate

    B - Small Seed Wear Plate (Yellow)

    Install proper wear plate.

    • Use small seed wear plate (B) with yellow meter roller or with black meter roller when seeding cereal grains.
    • Use standard wear plate (A) with orange, green, or blue meter roller.


  13. Keep enclosure and meter roller together. Remove next enclosure and repeat procedure. Continue until all meter rollers are replaced. Do not install meter rollers or wear strips of different colors in meter cartridge.

  14. NOTE: Use alignment pegs and holes to aid enclosure installation onto meter cartridge.

    Install meter rollers and corresponding enclosures onto meter cartridge in the order noted earlier.

  15. A74370
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    A74371
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    A - Cap Screw

    B - Collar

    C - Handle

    D - End Cap

    E - Flange Nuts

    F - Bushing

    Install previously removed end cap (D) and bushing (F) in original position.


  16. Install previously removed meter handle (C) in original position.

  17. IMPORTANT: Do not over tighten flange nuts (E). An overtightened nut distorts plastic enclosures and restricts meter rotation. An overtightened nut also increases wear on meter components and causes rod to interfere with sensor ring.

    Tighten flange nuts (E) until one or two threads are visible past top of flange nut.

  18. NOTE: Fully assembled meter cartridge rotates easily by hand.

    Install previously removed cap screw (A), lock nut, and collar (B).

  19. Install meter cartridge in cart.

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