Great Plains PD8070 Operator Manual - Manual (Page 73)

Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 69
2014-07-23 Table of Contents Index 401-479M
Chain Tension
As the chains wear and stretch, you may need to adjust
idlers and/or remove links for proper chain length and
tension. Check and replace bushings on idlers. For the correct
operation of the planter check all chain routings. Refer to
the illustrations on this page for proper chain routings.
Contact Drive Chain 25470
Transmission Chain 25471
Dry Fertilizer Jackshaft Chain 25472
Reverser Drive Chain 25468
Meter Chain 16871
Dry Fertilizer Drive Chain 25469