20-Point Closing Wheel Complete
Look at the contact face and overall diameter first — as the face wears down and the wheel shrinks it pulls back from the furrow and stops closing cleanly. Spin the wheel and watch it turn: a wobble usually means the connecting bolt has bent under load, so replace it to keep the wheel running true beside the furrow. Hold the arm, spin the wheel and listen for a rumble that signals a dry or worn bearing. Then steady the arm and try to wiggle the wheel — any play means the bearing is collapsing and needs replacing.
Applies to: 20-Point Closing Wheel Complete AA20CWC
Flange Lock Nut Oversize
Get the unit clean, then grab the arm and try to move it side to side — a new bush kit should show no lateral play at all, so note any that's there. Move the arm up and down; it should travel smoothly with no stiffness. If the arm can be swung in a circular motion, the bushes are past their life and you risk major damage to the housings. Check the washer and nut on the pivot and replace if worn, and inspect the bush housings for any damage that stops them holding the bushes, pin and seals.
Applies to: Flange Lock Nut Oversize AA024 OS · Washer - Closing Pivot Oversize AA849 OS · NG84P Kit - Pro-Series AANG84PRO · NG86 Kit x 1 1/8" AANG86x11/8" KIT
Spring
Springs lose tension and set over time, and a tired spring won't hold the downforce the wheel needs to run true or firm the furrow. Check for cracks, corrosion and any permanent deformation, and compare free length against a new one. Replace in matched pairs where left and right work together, so downforce stays even across the opener.
Applies to: Spring Closing Wheel Left AA307 · Spring Closing Wheel Right AA308 · Spring (011093) R Closing Wheel R N283994 / A110308 · Spring (021087) R Closing Wheel L N283995 / A110307
Bearing 5203 G & Closing Wheel
Spin the bearing and listen for a dry rumble that tells you the internals are worn or dry. Check for side-to-side play by holding the assembly and trying to rock it — there should be none. A bearing that spins too freely with no resistance is dry and on the way out. Replace promptly, because a collapsed bearing takes surrounding parts with it.
Applies to: Bearing 5203 G & Closing Wheel AA5203 6LP
