Seasonally, Coulter hub bearings, Center rockshaft 3-bolt bearing castings – Great Plains AS20 Operator Manual User Manual
Page 29: Coulter swing arm pivot, Transport hub wheel bearings

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4/14/05
Great Plains Mfg., Inc.
Section 5 Maintenance & Lubrication
AS15 and AS20 Planting System 148-153M
12406
8
Seasonally
Coulter Hub Bearings
Located at each coulter hub (1 per coulter)
Type of grease = Multi-purpose high temperature lithi-
um grease
Quantity = Force grease into tapered roller bearings but
do not pressurize cavity enough to blow out seal or hub
cap
12461
Center Rockshaft 3-Bolt
Bearing Castings
Located at rear of tongue (1 Only)
Type of grease = Multi -purpose lithium base grease
Quantity = Until grease begins to emerge
12460
8
Coulter Swing Arm Pivot
Located on the top of coulter castings (one per coulter).
Type of grease = Multi -purpose lithium base grease
Quantity = Until grease begins to emerge
Seasonally
Transport Hub Wheel Bearings
Located in each transport wheel (2 total)
Type of grease = Multi -purpose high pressure wheel
bearing grease
Quantity = Repack bearings & check seals
12335