TM 5-3895-373-102.2.6FeedLimitSwitches.The feed limit switches aretwo-position switches controlled by the position of thefeed limit switch paddles. Each endgate has a switchand paddle which controls automatic operation of theauger/conveyor system on that side. When pavingmaterial fills the area between the augers and endgatesand presses against the feed limit switch paddle, theauger/conveyor system stops. When the material isused up and releases the paddle, the auger/conveyorsystem starts again. Raising the position of the paddleby loosening the thumbscrew and hex nut will increasethe amount of paving material at the leading edge of thescreed. Lowering the position of the paddle willdecrease the amount of material at the leading edge ofthe screed.2.2.7ExtensionScreedHeightAdjustments.Theheight adjustments move the extension screeds up ordown to keep the extension screed plates parallel withthe main screed plates. Turn the extension screedheight adjustment knob forward to raise extensionscreed plate height. Turn the knob back to lowerextension screed plate height. The adjusted height ofthe extension screeds is locked in place using theextension screed height catch plates. To change heighton one end of an extension screed, pull the quick releasepin out of the shaft. Slide the two halves of the knobapart. Turn the left or right half of the separated knob toraise or lower an end of the extension screed.2-9
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