This demonstration guide answers one field question about a bent shaft after a curb strike. Measurements come before parts, and the notes are not a generic equipment FAQ.
Diagnose before replacing parts
Start with runout at the blade adapter. That reading separates a bent shaft after a curb strike from adjacent faults that share the same complaint.
If the measurement is out of spec, treat the shaft as the primary path. If it is in spec, do not replace the shaft just to complete a parts list.
Repair the failed system
The usual correction is the shaft, installed to the documented spec for this complaint.
A demonstration shop records the finding so the next technician is not repeating a guess about a bent shaft after a curb strike.
Stop before you make it worse
Do not installing a heavier blade to "smooth" the wobble. That shortcut hides the original measurement and creates a second failure.
If the machine still fails after the shaft is corrected, convert the visit to a broader diagnosis rather than stacking parts.
Written and published by Ridgeline Small Engine.