Seed cup drive shaft sprocket, Gauge wheel chains, Markers: disk hubs – Great Plains 2525F Operator Manual User Manual
Page 59: Seasonally

Maintenance and Lubrication 55
01/23/2012
118-232M
Seed Cup Drive Shaft Sprocket
2 sliding sprockets; one each side
Type of Lubrication: Oil
Quantity: Coat thoroughly
Move the Seed Rate adjustment handle back and forth to
get oil back into the square bore. Perform this with no
seed in seed box, or handle may be difficult to return to
zero.
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Gauge Wheel Chains
(Ground Drive only)
4 chains, 1 each side; 8 total
Remove chain guard for access to lower chain.
Type of Lubrication: Chain Lube
Quantity = Coat thoroughly
Note: Lubricate chains any time there is a chance of
moisture, and when being stored at the end of the
planting season.
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Markers: Disk Hubs
4 bearings; 2 each marker
Type of Lubrication: Grease
Quantity: Re-pack
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12126
50
26252
As
Required
20332
Seasonally