Automatic ... reduce the air to the front brakes except when the brakes are put on very hard; they cannot be controlled by the driver. CDL Automatic ... reduce the air to the front brakes except when the brakes are put on very hard; they cannot be controlled by the driver.Answer: front wheel limiting valves Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.