Great Plains PH-20 Operator Manual - Manual (Page 36)

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Section 5 Maintenance and Lubrication
PH-15, PH-20, PFH-15 and PFH-20 Precision Fertilizer Hitch 148-365M 12/29/2011
Great Plains Mfg., Inc.
Rockshaft Bearings
Two zerks total; one on each side of hitch
Type of Lubrication: Grease
Quantity = Until grease emerges from pivot
Marker Disk Bearings
Type of Lubrication: Grease
Quantity = Repack bearings
Coulter Hubs
One zerk per coulter
Type of Lubrication: Grease
Quantity = Pump grease into bearings until resistance is felt,
being careful not to pressurize seal or blow out cap
Marker Pivot Points
Three zerks per marker
Type of Lubrication: Grease
Quantity = Until grease emerges from pivot points
10
Seasonally
Seasonally
8
18135
18137
18138
18129