Construction Machinery: Medium-Sized Excavator Gehl

Model	Hydraulic system overflow valve pressure
803	29999.1 kPa - 4351 lb / sq. inch
753Z	26000.1 kPa - 3771 lb / sq. inch
603	24497.1 kPa - 3553 lb / sq. inch
503Z	24000.6 kPa - 3481 lb / sq. inch