Replacing Fingers-Finger Pick-Up Meter

NOTE: Finger should seat in holder so holder is flush with carrier plate when assembled. Be certain to align notch in bearing (C) with projection on cam (D).

To replace fingers (A) or springs (B), remove springs from finger and remove finger from carrier. When replacing fingers, be certain to install springs with open end of spring loop toward inside of finger holder.

Fingers and springs are also sold through John Deere Service Parts as a complete finger assembly.

A-Pick-Up Finger
B-Spring
C-Notch in Bearing
D-Projection on Cam

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Before installing finger pick-up assembly on carrier, check dimples (A) on carrier plate for wear.

Carrier plate is made of case-hardened steel with a hard chrome plated wear surface. Excessive wear of carrier plate at dimples will result in over population, especially with small seed corn sizes.

Inspect carrier plates yearly. Replace carrier plates when hard chrome surface has worn away and case-hardened steel begins to wear. This will be identifiable by a change in shape of dimples.

A-Dimple

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IMPORTANT: Never turn finger pick-up mechanism backward. Damage to brush will result.

Install finger pick-up assembly and adjusting nut (C) on shaft. With finger holder firmly seated against carrier plate, turn nut clockwise by hand until it contacts finger holder and a slight resistance is felt.

Continue to turn nut two flats clockwise (one third turn) until finger holder is properly positioned against carrier.

Turn finger holder by hand to be certain mechanism is not over tightened. Finger holder must be adjusted firmly against carrier but still turn by hand with moderate force.

Secure adjustment with nut lock (B) and cotter pin (A).

A-Cotter Pin
B-Nut Lock
C-Nut

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IMPORTANT: Check tightness of adjusting nut periodically. Failure to maintain proper finger assembly adjustment will result in a loose finger assembly which will tend to over populate, especially with small seed-corn sizes.

As a check on the above adjustment, there should be less than 0.15 mm (0.006 in.) gap between finger holder and carrier with light tension on a finger tab adjacent to area being measured. Raise finger tab until contact is felt, then use a feeler-gauge to check gap between finger holder and carrier.

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