This demonstration guide answers one field question about unequal rear pressure that tilts the deck. Measurements come before parts, and the notes are not a generic equipment FAQ.
Diagnose before replacing parts
Start with cold tire pressure versus the sidewall spec. That reading separates unequal rear pressure that tilts the deck from adjacent faults that share the same complaint.
If the measurement is out of spec, treat the tire valves and ballast as the primary path. If it is in spec, do not replace the tire valves and ballast just to complete a parts list.
Repair the failed system
The usual correction is the tire valves and ballast, installed to the documented spec for this complaint.
A demonstration shop records the finding so the next technician is not repeating a guess about unequal rear pressure that tilts the deck.
Stop before you make it worse
Do not airing rears to car-tire pressure for a smoother ride. That shortcut hides the original measurement and creates a second failure.
If the machine still fails after the tire valves and ballast is corrected, convert the visit to a broader diagnosis rather than stacking parts.
Written and published by Ridgeline Small Engine.