If there are no vacuum leaks in the lines and the lines aren"t stopped up then the seals in the actuators have to be the problem. I"d just about bet that your milk pump is either pulling more inches of vacuum than your getting on the cars system or it"s pulling at least as good of a vacuum but can sustain the pull enough to overcome any seal leakage. In other words it"s pulling the same inches of vacuum but at a greater volume so it can sustain that amount of vacuum constantly instead of the vacuum dropping off due to leakages. Try putting a valve in the line to the actuator, put the vacuum to it, and then shut the valve. If there is no leakage across the seals the actuator should hold it"s place because of the valve, if it moves then it"s not holding the vacuum because the seals are bad. Good luck.
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Today's Featured Article - Trailering Your Tractor - by Curtis Von Fange. One of the fun things of summer and fall are the parades and tractor shows that go on across America. Many owners of tractors travel long distances to attend these shows and they usually take their restored iron along with them. Safe trailering practices and inspections will ensure that the event is a fun one. A good habit to develop when using a trailer is to give that �quick look over� before taking it on a trip. Before hooking up to it check the tongue for proper operation. The latche
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