The 728619 E is a two stage pump. The pump supplies a high rate of low(20 cm³ per stroke) below the switching pressure. Above the switching pressure the lowis automatically decreased to 1 cm³ per stroke.A 3 metre long high-pressure hose is supplied to connect the pump to the workpiece.One end of the hose has a quick-connection coupling for the connection to the pump.The other end of the hose has a G 1/4” quickconnection nipple for the connection to theworkpiece.The pump comes preilled with SKF mounting luid (LHMF 300).A 1 litre can of mounting luid is also included. These items are stored in a sturdymetal box.The pump has an oil outlet connection (P).The pump also has a return connection (R), to return oil to the oil container.The return connection can be connected to an external oil reservoir when the oil containercapacity is not suficient.The release valve is in the pump head. The pump includes a safety valve to prevent highpressure that can cause damage to the pump