15 Parker HannifinPump and Motor DivisionTrollhättan, SwedenService ManualSeries V14Bulletin HY30-5510-M1/UKWARNINGIn order to prevent injury to the technician orthe bystanders during the adjustmentprocedure, all hydraulic functions on thevehicle/machine should be disabled (e.g.wheels raised off the ground, work functionsdisconnected).Avoid fast forward/reversed changes thatcan damage the synchronizing shaft.Gauge ports EO/EP/HO/HPThe pressure/current setting procedure isvalid for all proportional and two-position con-trols (EO, EP, HO and HP).1.Make sure that the motor has beensupplied with the correct modulatingspring (ordering code and nameplateinformation should agree). The hydraulicoil should be 50°C (120°F).2.Install 0 - 600 bar (0 - 8500 psi) gaugein port X2. Use a 0 - 60 bar (0 - 850 psi) gauge tomeasure pilot pressure if it is a HO or HP.3.Turn the adjustment screw counterclockwise to ensure that the threshold spring isunloaded. The distance between nut and screwend is approximately 22 mm when the thresholdspring is unloaded.Note! If you remove solenoid or end cover themaximum distance between nut and screw endshould not be more then 16 mm.If the unit is assembled the maximum distancebetween nut and screw end should not be morethen 22 mm.HO or HP controls4.Pressurize port X5 to desired threshold (thecontrol goes to min displ.).Standard factory setting is 10 bar.Optional setting is 5 - 25 bar.EO or EP controls4.Apply the desired threshold current to the sole-noid (the control goes to min displ.).5. Start to turn the threshold adjustmentscrew clockwise until the pressure ingauge X1 starts to increase. Rightthreshold pressure setting has beenreached.Note: One turn of the setting screw correspondsto:• 40 mA on 12 VDC solenoids (EO, EP)• 20 mA on 24 VDC solenoids (EO, EP)• 2,1 bar (30 psi) on HO and HP controlsStandard factory setting is400 mA (12 VDC)200 mA (24 VDC)Main port AMain port BGauge portX1 (max)Gauge portX2 (min)Port X4EO/EP controlMain port AMain port BGauge portX1 (max)Gauge portX2 (min)Port X4Port X5HO/HP control