This demonstration guide answers one field question about unequal tracking or a dragging brake. Measurements come before parts, and the notes are not a generic equipment FAQ.
Diagnose before replacing parts
Start with tracking distance over a measured run. That reading separates unequal tracking or a dragging brake from adjacent faults that share the same complaint.
If the measurement is out of spec, treat the tracking rods and brake linkage as the primary path. If it is in spec, do not replace the tracking rods and brake linkage just to complete a parts list.
Repair the failed system
The usual correction is the tracking rods and brake linkage, 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 tracking or a dragging brake.
Stop before you make it worse
Do not overtightening one hydro to "steer" it straight. That shortcut hides the original measurement and creates a second failure.
If the machine still fails after the tracking rods and brake linkage is corrected, convert the visit to a broader diagnosis rather than stacking parts.
Written and published by Ridgeline Small Engine.