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