Replace Cotter Shear Pins

NOTE: Replace the cotter shear pins only with cotter shear pins of the same size. Do not replace with other type pins.

A91382-UN-12JUL16

A - Cotter Shear Pins

Cotter shear pins also become deformed through normal usage after extended use. In a damaged or deformed condition, it is possible for the cotter pin to fail without a planter malfunction.

Infrequent or improper lubrication causes binding of moving parts for the planter. The binding causes the cotter pins to shear, thus preventing breakage of the fertilizer parts.

If the drillshaft binds due to misalignment, loosen bolts on the drillshaft bearings on the planter. Make certain that the shaft turns freely, then tighten bolts.

If either of the cotter pin shears, turn the drillshaft by hand to locate where the binding is occurring. When the drillshaft can be turned freely by hand, replace the cotter pin.