Great Plains 1520P Operator Manual - Manual (Page 57)

5/6/2010 118-732M
55 Maintenance and Lubrication
Refer to Figure 64
13. Close and pin meter clean out.
Refer to Figure 65
14. Open and pin sliding seed tube.
Refer to Figure 66
Chain Tension. 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. This mea-
surement should be taken with opener arms
horizontal.
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. See
figure A.
Figure 64
Close and pin clean out
19192
Figure 65
Open and pin sliding seed tube
18300
Figure 66
Seed Meter Chain Idlers
18300
Arms
horizontal
rear idler
front idler
Figure A
Chain Retainer
19192