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Service bulletin FDM-TSIB-011

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10179539
Published by NHTSA2020-09-08
Manufacturer's numberFDM-TSIB-011
Manufacturer's date2020-06-18
NHTSA componentEQUIPMENT

NHTSA's summary

Oshkosh engineering has identified a chute speed inconsistency on some 2020 model year S-Series front discharge mixers. Affected trucks will have chute speeds that are faster in one direction and slower in the other direction. Chute left/right timing should be 15 seconds ±1 second and up/down should be 9.5 seconds ±1 second.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Equipment and accessories

Vehicles listed
OSHKOSH S-SERIES2020

Listing a model year does not mean every vehicle of it is concerned: the document says which.