One of our members wrote me this question:
“Our hydraulic power units are Kubota 86 hp and Deutz 76 hp 4 cylinder diesel systems. We use a 40 GPM gear pump with a flow divider valve to create two circuits of 20 GPM, each with a variable flow control. We have a diverter valve upstream to combine flows if needed. … Read more
In Chapter 13 of Insider Secrets to Hydraulics, I explain how to check the straightness of a hydraulic cylinder rod and calculate allowable run-out. This is an essential task when repairing any hydraulic cylinder. Because if a bent rod gets put back in, the life of the rod seal is compromised and the cost of the repair largely wasted.… Read more
Hydraulics Pro Club member Rich Catalo sent me this tragic story:
“We deal with a very large dock and dredge company. They have many pieces of hydraulic equipment from different manufacturers. The last call I received was due to a tech who removed a hydraulic cylinder that was in need of a re-seal. The tech did OK removing the cylinder … Read more