# Service bulletin 321

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: 10023628
- Published by NHTSA: 2008\-01\-16
- Manufacturer's number: 321
- Manufacturer's date: 2007\-10\-01
- NHTSA component: SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE

## NHTSA's summary

AMU \(AIR MANAGEMENT UNIT\) NORGREN DOUBLE\-CHECK VALVE DOES NOT SEAL COMPLETELY. \*NJ

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Brakes

## Vehicles listed

- 2006 to 2007 THOMAS BUILT BUSES SAF\-T\-LINER C2

JSON: [/v1/bulletins/10023628](/v1/bulletins/10023628)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20321&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10023628&vehicle=Service%20bulletin%20321)