Technical “ For every 10


degrees centigrade above 60 degrees operating


temperature the hydraulic fluid service life is halved!


Easy oil cooler access





Experts say that 75-80 percent of hydraulic system failures are caused by fluid contaminated with dirt, wear particles and other foreign material


” 142 I PC OCTOBER/NOVEMBER 2017


reliability. Here is another important fact:    even if you adhere to the manufacturer’s    with system temperatures too high is likely   being pumped around the system is also   between moving components in pumps and motors to fail. This leads to metal to metal contact and internal damage. Metallic      not normally a problem in the UK climate, running hydraulic systems too cold can also cause problems and internal damage due to   The science of this is beyond the scope of   performance, I remember driving an 85hp     knocked one of the hydraulic spool valves  “pumping against a dead end” causing the relief valve to be permanently open. This  So much so that, within a few miles, the      The third source of system damage is water


 oil and water can in fact mix, forming a milky 


 water leaking into the system through open tank vents and caps, it can also be formed    


causes of system damage, what can we do at  lot as it happens.   system. It has a very hard life transferring    many other types of oil) are nothing short of  I came to appreciate how much technology  I was fortunate indeed during my career to become friends with a senior chemist and technical sales manager from a well-known    understand how oil can be termed as “liquid  a number of occasions when I encountered problems with machine transmissions, wet brake squealing and repeat hydraulic pump    to the problem, simply by changing to a  formulated one designed to address the Since then, I have never underesmated the importance o oil.


Fluid Maintenance:


  


     


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