Grade gripper quick release valve, replacement. on some mack chu, cxu, and gu trucks built between...
Mack technical service bulletin FSB 593-014 for 2009-2016 Mack Gu, 2009-2016 Mack Cxu and 2009-2016 Mack Chu.
- Bulletin number
- FSB 593-014
- Component
- Service brakes
- Summary
- Grade gripper quick release valve, replacement. On some mack chu, cxu, and gu trucks built between 04/31/2008 and 01/05/2015, and equipped with the grade gripper function may experience a slow release of the trailers service brakes. Additionally, a delay in the release of the grade gripper function may be caused by certain truck options and trailer combinations used by the operator.
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