This demonstration guide answers one field question about uneven hanger chains or a bent spindle. Measurements come before parts, and the notes are not a generic equipment FAQ.
Diagnose before replacing parts
Start with deck height at four corners with the machine on a pad. That reading separates uneven hanger chains or a bent spindle from adjacent faults that share the same complaint.
If the measurement is out of spec, treat the hanger chains and spindle as the primary path. If it is in spec, do not replace the hanger chains and spindle just to complete a parts list.
Repair the failed system
The usual correction is the hanger chains and spindle, installed to the documented spec for this complaint.
A demonstration shop records the finding so the next technician is not repeating a guess about uneven hanger chains or a bent spindle.
Stop before you make it worse
Do not shimming only one side without measuring all four corners. That shortcut hides the original measurement and creates a second failure.
If the machine still fails after the hanger chains and spindle is corrected, convert the visit to a broader diagnosis rather than stacking parts.
Written and published by Ridgeline Small Engine.