Great Plains 4000TT Operator Manual - Manual (Page 33)

Great Plains Manufacturing, Inc. Maintenance and Lubrication 29
02/11/2014 586-201M
Detracker & Rock Gang Coulter Hub
Zerk on each coulter hub
Type of Lubrication: Grease
Quantity: Force grease into tapered roller bearings; do
not pressurize cavity enough to blow out seal or hub
cap
Seasonally
42826