675 - OperationCA operating unitThe section valves are operated from the switch box in the tractorcabin. Turn the switch towards the drawing of nozzles and spray liquidflows in the section. The pressure is set by pushing the switch with +and minus symbols, plus is more pressure and so forth.Adjustment of pressure equalisation 2Set the pressure to e.g. 4 bar, by turning the hand wheel 5Open all section valves. Close now one section, if the pressure change,turn it backs to 4 bars, by increasing or decreasing on the reed handwheel 3, turn it left or right in order to obtain pressure equalisation.Cleaning the pressure filter 4Stop the tractor engine. Unscrew they filter by turning left. Wash thefilter in soap water, put it back in to the filter body and fit it to theoperating unit.SB 3012 or SB 3014 etc.Are the control boxes for motorised operating units The operating unitCB2 CB4 etc.A constant pressure operating unit, allows to turn off one section, andmaintain the pressure constant.1. Section valvesWhen up = offWhen down = on2. Pressure up & down, - for less pressure and + for higherpressure.FB 3610F0. Main Switch valves sectionF1-F3 / F2-F4. Fluid sections: Odd on left / Even on rightS1-S2 / S3-S4. Hydraulic selectorsP+ / P-. PRESSURE Regulation + & -STB. ON / OFF1 11 1 241 1352F3 F1S1F0F2 F4 STBP+P-S4S2S3
