September 2016 Service ManualHydraulic Power UnitPart No. 38139 AWP Super Series • IWP Super Series 77Hydr aulic Power Unit3-1 H ydr aulic Power U nit - AC M odels (to SN AW P03-27389 and IWP03-5150)3-1Hydraulic Power Unit - AC Models(to SN AWP03-27389 and IWP03-5150)Index No. Description Function1 115-230V AC electric motor Single phase - 2850/3450 rpm, 50/60 Hz2 Capacitor Motor start circuit3 Relief valve Lift relief4 Solenoid operated N.O. dump valve Diverts pump output back to tank during motor start up5 10V DC coil Activates N.O. dump valve6 Hydraulic tank 3 quarts / 2.8 liters7 Drain plug Drains hydraulic tank8 Sight gauge Hydraulic fluid level9 Breather cap Hydraulic tank vent/filler10 Suction strainer Filters hydraulic fluid11 O-ring Seals tank12 Pump 0.5 to 0.6 gallons per minute at 2000 psi /1.89 to 2.27liters per minute at 138 bar13 Check valve Pump output14 Motor seal Seals motor from contaminants15 Motor bearing Aligns motor shaft into pump
