A lot of companies spend a lot of money to train their maintenance personnel to troubleshoot a hydraulic system. There is a better way. Instead of focusing on trouble shooting and fixing, why not spend money and time to focus on preventing system failure.
It is generally accepted that hydraulic system fails rather than deciding not to accept hydraulic failure as the norm. It is better to think of using the time and money to eliminate hydraulic failure rather than preparing for failure.
For instance, one company that used to focus during the 1980’s on maintenance suddenly shifted its focus from reactive to proactive maintenance on the hydraulic systems. This eliminated unscheduled hydraulic failure.
The lack of maintenance of hydraulic systems is the major cause of component and system failure. But most maintenance personnel do not understand the correct maintenance methods of a hydraulic system. The most basic basis to perform proper maintenance on a hydraulic system has two areas of concern. The first is preventive maintenance. This is the major reason to the success of any maintenance program whether in hydraulic system (link)or any equipment which requires reliability. The second area is corrective maintenance. In lots of cases, this can cause extra hydraulic component failure when it is not standard in performance.