Patent ID: 7481278

Claim:
A method for adjusting a gauge wheel about a pivot axis to change a position of the gauge wheel relative to a disc opener of a disc opener assembly, the method comprising: providing a depth adjustment assembly including an adjustment link, said adjustment link including a link mating surface and a link camming surface; an adjustment coupling configured to selectively engage the adjustment link, said adjustment coupling including a yoke, a channel configured to receive the adjustment link, and a coupling mating surface configured to mate with the link mating surface, the adjustment link positioned within the channel and the coupling mating surface positioned adjacent to the link mating surface; a handle configured to rotate the gauge wheel about the pivot axis and selectively place the adjustment link into engagement with the adjustment coupling, said handle includes a plurality of ratchet teeth and a cam configured to engage the link camming surface to force the link mating surface to mate with the coupling mating surface; and a spring clip configured positively lock depth adjustment assembly by engaging the handle; said spring clip configured to engage at least one of the plurality of ratchet teeth, said spring clip includes a mounting plate, a pair of leaf springs, a bridge and a pair of clip handles; said leaf springs bend from said mounting plate to extend generally perpendicular from said mounting plate; said clip handles each include a tab for actuation of spring clip; a ratchet opening is formed between leaf springs and bridge; said clip handles extend upwards from said bridge and are inclined towards adjustment coupler; rotating the gauge wheel to a selected position; actuating the handle to place the adjustment link into engagement with the adjustment coupling; and positively locking the depth adjustment assembly.