Before you can set floor levels, you must first be sure the mg set is compounded properly, you should be able to the run car on inspection at level speed and get close to equal speeds up and. Usually around 10-13 fpm. To test the compounding first put car on inspect by removing the INA field wire from controller, then block out the MOX1 relay 3-7 n/ o contact to get level speed. Next make sure the 14 relay will pick up when you run the car by placing a jumper on FCP 3-7 n/ o relay contact which is on the left side of relay. Then run the car by either pulling in relay UA1, or DA1 by hand, or jumping S- to HAU or HAD in controller. The car should run at level speed in both directions, use a tach to measure speed of car, if the car runs in both directions within a few fpm then compounding is ok and you can then set the level switches. If the car will not run within a few fpm then you need to adjust compounding. For example if car runs up at 17 fpm and down at 8 fpm then you can not set floor levels with the level switches and cams properly. Many mechanics will start moving cams and level switches at the various floors to get the car to land level, this will only cause problems. The car must run at nearly equal level speeds before you can adjust floor levels. Once equal speeds are obtained then you can set up the master floor plate and switches for proper level. Once master floor is set you then need only adjust plates at other floors for proper levels. If you can not get equal speeds then you will have to adjust taps on generator, post back if u need help with this. First be sure brush riggings are clean,and all loop circuit wiring is tight, also spring tension on brushes should be good, no loose brushes in holders. Also all brushes must be seated properly, they should be smooth and shiny along the entire face of the brush. If they are not seated properly then you can not compound generator properly.