NHTSA recall 08V144000
Service brakes, air › Supply › Check valve
Mack MR
Reported Mar 26, 2008218 vehicles affectedMACK TRUCKS, INCMaker’s number SC0337Built Aug 23, 2005 – Mar 27, 2006
The defect
Mack IS recalling 218 my 2006-2007 mr trucks. A check valve was omitted from the secondary supply port of the SR-7 spring brake modulating valve.
The risk
As a result, an air leak in the secondary or primary system may result in the park brakes inadvertently applying, increasing the risk of a crash.
The remedy
Dealers will add a check valve to the secondary supply port of the SR-7 spring brake modulating valve and will also repair the SR-7 valve by applying a check valve repair kit as required for the bendix safety recall (please see 07e-037). the recall began on april 15, 2008. owners may contact mack at 1-800-528-6586.