FIELD: machine building.
SUBSTANCE: control valve on suction line and hydraulic tank in pressure line allow retaining oil in pump chamber. Note here that pump lift is increased and starting wear of pump gears is decreased. Pressure gage chamber is communicated with hydraulic tank inside to control safety valve operation pressure and that in delivery line. Oil dispensing gun is furnished with oil metre to control quality of oil filled in crankcase chamber.
EFFECT: better operating qualities.
2 cl, 1 dwg
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