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NHTSA ID Number: 10144438

Manufacturer Communication Number: SB-08-226

TSB/Document Date: 2018-09-17


Summary

Stemco released a notification regarding their automatic brake adjusters manufactured between 08/10/2017 - 05/04/2018 which may have a manufacturing assembly issue.


SB-08-226

Issue Date: August 29, 2018

STEMCO:
ABA Inspection Announcement and Procedure
STEMCO has identified Automatic Brake Adjusters (ABA) manufactured between
August 10, 2017 to May 4, 2018 (Date Codes 17222B-18124B) may have a
manufacturing assembly issue. Some of these adjusters may experience an anomaly
with the adjustment mechanism resulting in the ABA not fully adjusting the drum
brakes under certain operating conditions. This issue does not present a safety
concern regarding the ultimate function of the standard vehicle braking systems. It
is important, however, that you confirm if you have STEMCO ABAs in the date
range and, if so, that you check and monitor their performance. Here is an example
of a date code on an ABA for reference (VISIT STEMCO FOR TECH TIP #112:
Proper STEMCO ABA Inspection Procedure):

Any other questions regarding this service bulletin should be directed to STEMCO at
(903) 248-2980
Field Service Department
UTILITY TRAILER MANUFACTURING COMPANY
Utility hasn’t independently evaluated the information contained in the referenced TECH TIP from STEMCO; it is
making this available as a convenience and for information purposes. You are encouraged to contact STEMCO at
(903)248-2980 if you have any questions concerning the content of the document, or how these issues affect trailers
you are servicing.

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TSB/Document ID: SB-08-226

Replacement Service Bulletin Number:

MFR Communication Date: 2018-08-29

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: SERVICE BRAKES

MFR Component System:

MFR Component Subsystem:


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