Construction Machinery: Mini Digger Caterpillar

Model	Hydraulic system overflow valve pressure
303C CR	245 kPa - 3553 lb / sq. inch
303.5C CR	24500 kPa - 3553 lb / sq. inch
302.5C	22100 kPa - 3205 lb / sq. inch
302.5	20594.6 kPa - 2987 lb / sq. inch
301.8C	20600 kPa - 2988 lb / sq. inch
301.6C	20600 kPa - 2988 lb / sq. inch
301.5	18615.8 kPa - 2700 lb / sq. inch