# Service bulletin PIL\-553

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: 10042749
- Published by NHTSA: 2012\-01\-09
- Manufacturer's number: PIL\-553
- Manufacturer's date: 2011\-09\-28
- NHTSA component: SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH

## NHTSA's summary

MERITOR: THE TRACTOR TRAILER BRAKE CONTROL LINE REMAINS APPLIED AFTER THE FOOT VALVE IS RELEASED. THIS CAN CAUSED INCREASED BREAK WEAR. IN AN UNUSED CAVITY OF THE VALVE, AN INCORRECT ADDITION OF A RUBBER DIAPHRAGM HAS BEEN IDENTIFIED. NO MODELS OR MODEL YEARS LISTED. \*PE

## 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

- MERITOR WABCO ABS VALVE PACKAGE
- MERITOR WABCO AIR BRAKE SYSTEM

JSON: [/v1/bulletins/10042749](/v1/bulletins/10042749)

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