Since 2002 I’ve received a LOT of feedback from my Newsletter and blog readers. One question that pops up regularly is: “Why do you give away so much valuable information in your Newsletter and on your web sites?”
Well, I’ve spent the better part of 27 years working in and running hydraulic repair shops i.e. rebuilding hydraulic components. During this time I kept seeing the same pattern: Failed hydraulic component comes into shop along with concerned customer who wants to know why it has failed after a relatively short time in service. Based on what I saw after tear-down, I … continue reading »
When it comes to hydraulic fluid, it’s not possible to make one, definitive recommendation that covers all types of hydraulic equipment in all applications. But in response to the common question: “What type of oil should I use in my hydraulic machine?”, here are 3 important factors to consider:
Multigrade versus monograde
The operating temperature range of the machine is the factor that determines whether a multigrade or monograde oil is required. If the machine is required to operate in freezing temperatures in winter and tropical conditions in summer, then multigrade oil will likely be required to maintain oil viscosity … continue reading »
In my previous blog post, I wrote about the advantages of defining your maintenance and reliability objectives for a piece of hydraulic equipment before you even place an order it. In response to this article, I received the following from one of our members:
“As an engineer for a heavy equipment manufacturer, I have to take exception with your advice in your last post. I believe selecting a hydraulic oil, and then requesting the equipment manufacturer to design around that is putting the cart before the horse.
It makes much more sense for the equipment manufacturer to design the system … continue reading »