Great Plains 3N-4025P Operator Manual - Manual (Page 74)

3N-4010P, 3N-4015P, 3N-4020P and
3N-4025P
196-286M 4/23/2010
72
Refer to Figure 102
1. Remove meter slide (1) with springs (2).
2. Place springs in new meter slide and install in
meter.
3. Reinstall seed meter wheel. Refer to ”Chang-
ing Seed Meter Wheels for 10, 15 and 20 Se-
ries Openers“ on page 48.
4. Close and pin meter clean out.
5. Open and pin sliding seed tube.
Chain Tension
Refer to Figure 103
The seed meter drive has a spring-loaded idler
which requires no adjusting. However, chain
stretch may make it necessary to shorten the
chain.
For best chain tension the recommended vertical
distance between chain idlers should be not less
than 1/4 inch and not more than 1/2 inch (1/4” to 1
1/4” for 25 series). This measurement should be
taken with opener arms horizontal.
Refer to Figure 104
NOTE: The front idler should be below the rear
idler. Be sure chain is installed with the chain
connector link retainer towards the centerline
of the opener and the clip opening (split end)
faces the opposite way of the chain travel.
18269
Figure 103
Seed Meter Chain Idlers
22528
Arms
horizontal
rear idler
front idler
Figure 102
Figure 104
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