Great Plains 2525P Operator Manual - Manual (Page 69)

Great Plains Manufacturing, Inc. Maintenance and Lubrication 65
2013-05-10 118-231M
20 Series Row Unit 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.
Refer to Figure 85
For best chain tension the recommended vertical dis-
tance
between chain idlers is:
minimum: 1 ⁄
4
in (6.4mm)
maximum: 1 ⁄
2
in (12.7mm)
This measurement should be taken with opener parallel
arms
. horizontal. The front idler should be below
the rear idler .
Refer to Figure 86
Note: Be sure chain is installed with the chain connector
link retainer clip opening (spit end) facing the
opposite direction of the chain travel . Insert the
link in the chain for easiest access to the clip, nor-
mally towards the centerline
of the opener.
Figure 85
20 Series Meter Chain
18421
1
3
2
4
1
4 2
3
Figure 86
20 Series Meter Chain Link
26224
5
8
6
7
5 6
7
8