There have been several things to look at on purchasing used concrete pumps. In case, you were new to the business, your best bet would be to purchase new product. There may be several questions that you would be required to ask when searching for used concrete pumps. You should inquire about the age of the pump, when was the last boom inspection made, and what percent have been the wear parts.
You should also inquire about the differential cylinders being in good shape or not. When was the last time the hydraulic oil was changed? You should get oil sample test. Has the concrete pump been involved in any accident? You should know someone who has adequate knowledge on concrete pumps.