What does the tractor protection valve do? Do you currently have car insurance? Insurance is mandatory to drive in Ohio Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question What does the tractor protection valve do? Answers Protects the tractor from being stolen Protects the tractor from exceeding a set speed Keeps air in the braking system, should the trailer break away or develop a leak Ensures oil adequately lubricates the engine Explanation The tractor protection valve keeps air in the tractor or truck braking system, should the trailer break away or develop a bad leak. This questions appears in the following tests: Indiana Combination Mississippi Combination Nebraska Combination Nebraska Combination New Jersey Combination Tennessee Combination Wyoming Combination
