Service bulletin TB-H807-REV C
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10144872 |
| Published by NHTSA | 2018-10-01 |
| Manufacturer's number | TB-H807-REV C |
| Manufacturer's date | 2018-08-15 |
| NHTSA component | SUSPENSION:MULTIPLE AXLE; SUSPENSION |
NHTSA's summary
This Technical Bulletin is for some Oshkosh S-Series Front Discharge Concrete Mixer trucks that are fitted with an optional Hendrickson Load Span Tag Axle (LSTA). This publication is intended to assist with the identification and replacement of axle weldment components on a limited number of Load Span Tag Axle (LSTA) assemblies manufactured by Hendrickson and equipped on Oshkosh S?Series front discharge mixers. The applicable LSTA assemblies were manufactured between March 25, 2008 and January 30, 2017. The new production version of the LSTA assembly (Hendrickson Part No. BAH13Z?XXK) is not affected. Hendrickson has learned the above?referenced axle weldment components may develop slowly progressive cracks in the axle seat connections under various service conditions. Such cracks will be clearly visible during routine vehicle inspections. If this condition is allowed to progress over time, such cracks could result in damage to the LSTA connections to the adjacent suspension trailing arms. Therefore, Hendrickson is offering to all applicable owners, at no charge, an Axle Weldment Replacement Kit (No. 016816?00) for affected LSTA assemblies. This kit includes the same new LSTA subassembly (including bolt?on cast axle seats) that is used in Part No. BAH13Z?XXK.
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
Suspension
| OSHKOSH S-SERIES | 2008, 2009, 2010, 2011, 2012 |
|---|---|
| OSHKOSH S-SERIES | 2013 to 2017 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| FDM-TSIB-046 | 2023-12-05. Service bulletin. This bulletin provides instructions for installing new updated front shock absorbers and upper mounting brackets. The updated shock absorber and mounting bracket lowers the top of the shock absorber improving the allowable maximum travel of the front leaf spring pack and keeps the shock absorber in its normal travel zone reducing the time the shock absorber is in hydraulic rebound |
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