Secondary Brake Line Adaptor

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The trailer air brake couplings on many tractors are fitted with self-sealing valves, designed to open automatically when the trailer couplings are connected. In order to open the valve in the tractor service coupling, a valve-lifter needs to be fitted into the female trailer service coupling. The operation of this valve-lifter must be checked regularly and this tester is designed to do that.
Complete with a special minimum-lift gauge and padded storage container.

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2017-05-22T16:03:37+00:00 February 7th, 2014|