Agricultural Equipment & Farm Machinery Manufacturing worked example

Field Failure Warranty Reserve at 90% approved claim share: a worked example

This scenario runs the field failure warranty reserve calculation on the strong side: 90% approved claim share, with every other input held at its documented default. a warranty manager needs to estimate reserve exposure for a farm machinery field issue or product population

The inputs for this scenario

  • Affected machines in the field: 240 machines (unchanged)
  • Expected warranty claim cost: 680 $ / machine (unchanged)
  • Approved claim share: 90 % (raised for this scenario; the documented default is 78)
  • Service bulletin or campaign cost: 25,000 $ (unchanged)

Working through the calculation

  • Applying the documented formula (Approved field failure exposure = affected machines × expected claim cost × approved claim share) to the inputs above produces each figure below.
  • At this operating point the engine returns 171,880 $ warranty reserve for field failure warranty reserve, the number this scenario is built around.
  • At this operating point the engine returns 716 $ / machine for expected warranty claim cost.
  • At this operating point the engine returns 146,880 $ warranty reserve for approved field failure claim exposure.
  • At this operating point the engine returns 25,000 $ for service bulletin or campaign cost.

How this compares with the baseline

  • Against the tool's baseline example, where approved claim share sits at 78% and the headline result is 152,296 $ warranty reserve, this scenario comes in 12.86% above the baseline at 171,880 $ warranty reserve.
  • Use it when a defect has been confirmed across a population of delivered machines and you need to size the accounting accrual and the field-action budget. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Field failure warranty reserve: 171,880 $ warranty reserve (headline result)
  • Expected warranty claim cost: 716 $ / machine
  • Approved field failure claim exposure: 146,880 $ warranty reserve
  • Service bulletin or campaign cost: 25,000 $

Run it with your numbers

  • Every input above is editable in the live Field Failure Warranty Reserve calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.