Great Plains PH-20 Operator Manual - Manual (Page 37)

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Section 5 Maintenance and Lubrication
12/29/2011 PH-15, PH-20, PFH-15 and PFH-20 Precision Fertilizer Hitch 148-365M
Great Plains Mfg., Inc.
Wheel Bearings
Type of Lubrication: Grease
Quantity = Repack bearings
Rockshaft to Hitch Frame Pivot
Three zerks
Type of Lubrication: Grease
Quantity = Until grease emerges from pivot
Vertical Pivot
Zerk on top and on bottom bushing; two zerks total
Type of Lubrication: Grease
Quantity = Until grease emerges from pivot
8
8
Seasonally
18141
18140
18158