Can you use your blue air hose to release your trailer brakes if the red line breaks? Connect it to the red valve and use the hand brake, just to move the
![When driving semi trucks, are there situations where the use of a particular brake system is usually best? (e.g. engine brake, retarder, trailer brake) - Quora When driving semi trucks, are there situations where the use of a particular brake system is usually best? (e.g. engine brake, retarder, trailer brake) - Quora](https://img.truckpartsandservice.com/files/base/randallreilly/all/image/2021/06/IMG_1089_min.60ccb18fdcd19.png?auto=format%2Ccompress&fit=max&q=70&w=1200)
When driving semi trucks, are there situations where the use of a particular brake system is usually best? (e.g. engine brake, retarder, trailer brake) - Quora
![Milton Industries, Inc. Brake Releaser Standard Kit Unfreeze Frozen Truck and Trailer Brake Air Line System 2800S-KIT - The Home Depot Milton Industries, Inc. Brake Releaser Standard Kit Unfreeze Frozen Truck and Trailer Brake Air Line System 2800S-KIT - The Home Depot](https://images.thdstatic.com/productImages/7c3a713e-8222-4fe0-9f9f-7d64f82f1596/svn/curt-brake-controllers-51521-64_300.jpg)
Milton Industries, Inc. Brake Releaser Standard Kit Unfreeze Frozen Truck and Trailer Brake Air Line System 2800S-KIT - The Home Depot
![Milton Industries, Inc. Brake Releaser Standard Kit Unfreeze Frozen Truck and Trailer Brake Air Line System 2800S-KIT - The Home Depot Milton Industries, Inc. Brake Releaser Standard Kit Unfreeze Frozen Truck and Trailer Brake Air Line System 2800S-KIT - The Home Depot](https://images.thdstatic.com/productImages/a763e1d8-52ba-4c7e-89b6-38c465ebc266/svn/brake-controllers-2800s-kit-64_1000.jpg)