Happy New Year 2019. Greetings lusangor. Greetings androidpc. In addition to the information already received, the transmission boxes are factory graduated in terms of the adjustable screw to which you mention. Proof of this is the paint that is placed to ensure that they have not modified it from its place. However. To understand the adjustable screw, it at its lower end maintains a separation distance of a couple of millimeters from the smooth surface of the brake arm when the washer is either turned off or paused. If that end of the screw is touching the smooth surface of the brake arm in these conditions, that is wrong and that distance must be corrected by loosening the locknut and unscrewing the adjustable screw to the indicated clearance. But, if the separation between both surfaces is approximately two to three millimeters, then the fault is not related to that adjustable screw. When the wash or rinse stage takes a turn, the drain motor retracts the guide arm up to 50% of its travel to force the brake arm to subtly touch the end of the adjustable screw so that the brake band micrometrically moves away of the transmission case housing that acts as a third axis or arrow and that relates to the spin drum. That distance or separation is so minimal that it only allows the spin drum to be free to make short displacements in both directions no more than about 15 cm (clockwise as a reference) due to the presence of the double gear, thanks to the impeller or horizontal agitator which, when injecting water into the columns of the spin drum, forces said drum to rotate in the opposite direction to the impeller to create the kickback effect patented by LG. In other words, the two teeth of the clutch arm should prevent both gears from moving in those two stages mentioned above . If the two teeth move away from the two gears and thus the two gears manage to move, the action of the spring of two guides comes into play, forcing the spin drum to rotate as if the stage of the selected spin was. In the wash and rinse stages, the two-guide spring must be kept away from both the steel cylinder that goes on the inner shaft or lower arrow in the transmission case, as well as the final part of the case housing. transmission. And it will only contract by clinging to the two aforementioned surfaces when the intermediate spin and final spin stages take turns. Without water, the spin drum should not move either in the wash stages or in the rinse stages. If it does, the spring is doing a job it shouldn't do at those times and all because the gears are moving when they should not, thanks to the poorly calibrated drain engine when installed. When the spinning stages take turns, the brake arm is pulled by the drain motor to force the adjustable screw to move from its place and thereby move the clutch arm away so that the teeth of the clutch arm are separated from the periphery of both gears between a minimum of 2 mm and up to about 5 mm or something else. In this way, the brake band is completely separated from the housing of the transmission case a distance of 1.5 mm to 2.0 mm maximum. Enough distance for the spin drum to rotate completely free of the main motor rprm with the pulleys present. So, check the coupling system of the drain motor at the end of the brake arm. It is very likely that when installed, the end of the brake arm was on the wrong side inside the plastic that wraps it, or that its guide arm was slightly retracted when it should be 100% out of the drain motor. Thanks and regards.