685 - Operation1 12ACB operating unit1. Pressure equalisation device on the section valve.Turn left, or right to increase or decrease the pressure changethat occurs when turning the section off/on.This is done once for all. If nozzles are changed, it may require torepeat the procedure.2. Pressure regulation, no adjustment is needed.This photo illustrates a 2 section operating unit CB2.CB operating unit with by pass valveThe operating unit is in case of low dose rates, as often the case inpneumatic sprayers, equipped with an additional bypass valve.Open the valve to let X amount pump flow return freely to tank, thisprovides a pressure drop in the system, and allows the pressure tocome very low.Clock wise = closingAnti clock wise = openingHydraulic control boxesAll according to boom model and specifications in hydraulic functions.If the boom is equipped with electro hydraulic functions, the controlbox can be as illustrated.Where there are more than 5 hydraulic functions on the sprayer, mostcommon is then control boxes as HC3150 or HJ3200The hydraulic control box, in less hydraulic functions, can be operatedwith a control box.HB 3003, 3004 or 3005 all according to boom specifications.1. Lift up & down2. Boom wing left fold in & out3. Boom wing right fold in & out1 11
