Near Intersection of I-35 & I-90 Southern Mn. | In the past MT usually recommended running the Servo valve in a bypass plumbing arrangement. This meant that the excess was returned to the inlet of the pump or the tank.
With this plumbing arrangement the servo would need to be tee'd into the line, followed by the flowmeter and then the boom shutoff(s).
If the servo is plumbed inline (throttling setup) then the flowmeter is usally first, then the Servo and finally the boom shutoff(s).
Generally MT had some very nice drawings indicating their preferred layout for the plumbing.
When switching from the bypass to the inline plumbing arrangement for the servo, the polarity of the servo needs to be changed either in the console setup (if possible) or by physically reversing the wires to the servo.
Here's why: In bypass if more flow is needed to the boom, the servo must close down somewhat thus restricting the product going back to the pump or tank. In an inline arrangement if more flow is needed to the boom, the servo must open somewhat to allow more product to flow to the boom.
There are advantages and disadvantages to each setup.
Edited by tedbear 2/16/2008 08:15
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Micro trak spraymate II plumbing issue
