Great Plains 2515P Operator Manual - Manual (Page 57)

4/11/2005 173-208M
55 Maintenance and Lubrication
Grommet Maintenance
Periodically check seed meter and seed box
grommets for weathering or cracking and replace
as necessary. Check sliding seed tubes at this
time to make sure they slide freely.
Drive System
Refer to Figure 69
For proper operation and to prevent downtime and
repair, keep drive chains properly adjusted and lu-
bricated. Regularly check drive chains for excess
slack and wear. Adjust idlers to remove any ex-
cess slack from chains.
NOTE: Be sure chain is installed with the chain
connector link retainer towards the centerline and
the clip opening (split end) facing the opposite
way of the chain travel. See figure 66 page 53.
Row Unit Disk Spreaders and Scrapers
NOTE: It is normal for the blade spreader to have
some looseness in the holder and between the
blades. Some looseness is required for proper op-
eration.
Refer to Figure 70
1. Remove side gauge wheels from arms to ac-
cess opener disks and scrapers.
2. With the unit raised, check the blade spreader
(1) for wear. Replace spreader if it is 1/2 inch-
es wide or narrower. To replace, remove disk
blade (3). Drive out the roll pins (2) and install
a new spreader.
3. When reinstalling disk blades, put two shims
(4) between bearing and shank on each
blade. Tighten bolts.
NOTE: You may need fewer washers on worn
disks.
4. Check that outside disk scrapers (5) are
formed to disk blades to help remove any
mud. Bend and twist scrapers to fit blades as
necessary. After every 200 acres of bean ma-
chine operation, check outside scrapers for
proper adjustment and wear. Replace outside
scrapers as necessary.
18265
Figure 69
Drive Chains and Idlers
18266
Figure 70
Disk Spreader and Scraper
17766