2016 MACK CXU; 2015 MACK LEU; 2015 MACK PINNACLE (CXU); 2016 MACK LEU
Check against the official notice below — it lists the full affected range.
Mack Trucks is recalling certain 2015 and 2016 CXU and LEU trucks manufactured between May 20, 2014, and March 24, 2015, that are equipped with specific Haldex Life Seal Type 30/30 Long Stroke Air Brake Actuators made between January 9, 2014, and February 3, 2015. The brake actuators in these trucks may have an incompletely attached internal rubber diaphragm, which could allow internal leakage and trap air pressure in the parking brake section.
If air pressure becomes trapped and is not vented, the parking brake actuator may not fully release, potentially causing brake drag and overheated wheel-end service brakes that could result in a fire. Mack will notify owners, and dealers will inspect and replace affected actuators free of charge. Owners of affected trucks should contact Mack customer service at 1-610-709-2131 and reference recall number SC0387.
Written by software from the official notice below. Not reviewed by a lawyer.
If the diaphragm is not completely attached, there may be internal leakage from the service section past the diaphragm, potentially trapping air pressure in the parking brake section. This air pressure in turn, if not vented, may prevent full release of the actuator unit, and may induce brake drag and may result in overheated wheelend service brakes, increasing the risk of a fire.
Mack will notify owners, and dealers will inspect the brake actuator and replace, as necessary, free of charge. The recall began March 20, 2015. Owners may contact Mack customer service at 1-610-709-2131. Mack's number for this recall is SC0387.
Mack Trucks, Inc. (Mack) is recalling certain model year 2015 and 2016 CXU and LEU trucks manufactured May 20, 2014, to March 24, 2015, equipped with certain Haldex Life Seal Type 30/30 Long Stroke Air Brake Actuators manufactured from January 9, 2014, through February 3, 2015. The affected actuators may have an incomplete attachment of the internal rubber diaphragm to the actuation mechanism of the parking brake section of the Life Seal actuator.
Republished from the official source above; details can change — the source record controls.