When you need to hold a hydraulic hose, or a part of a fastener while torque is being applied you don't care what you call the tool. You care that the work is done, done right, and documented. Back up tool, backup tool, holding tool, holding wrench? It's not the name that gets the job done. It's you and the tool. We call ours Holding Tool Technology wrenches because we have added the technology of a radio that talks with a torque controller. With that small concept comes big change.
Now you can document EVERYTHING!
Hydraulic lines can leak even if the connectors are torqued properly. Movement in a line after the fastener has been tightened can cause leakage despite a conforming fastening. When trying to fasten the other end of the hose often causes movement in the previous connection. We all know the headache associated with finding the leaky fitting.
That topic occupies a lot of engineering conversations. So where do holding tools fit in?
Hydraulic hoses, even those with metal braiding can have service life dramatically reduced with a little twisting. A twist of seven (7) degrees can reduce hose service life by up to 90%. These facts are from studies by hydraulic hose manufacturers and are reported by hydraulics expert Brendan Casey. His blog on January 19, 2016, covered the topic of hydraulic hose service life. Read Brendan's Blog Post
One of the things Casey notes is that application technique significantly impacts hose service life. That is where the Sturtevant Richmont holding wrench comes in.
The holding wrench helps prevent the hose twisting and kinking that contributes to the shortened service life. Plus the SR holding wrenches are part of a larger wireless tool error proofing solution. Many of the companies that have hydraulics in their products have implemented the Global 400 wireless error proofing system to take advantage of the holding tools.
Even those companies that have previously implemented the Global 8 process monitors have upgraded to the Global 400 to take advantage of the holding wrenches.
When you consider the full cost of shortened hydraulic hose service life, the ROI to either add the Global 400 to the line or to switch from a Global 8 to a Global 400 is very short. In some cases, the ROI seems to be faster than trying to find a leaking hydraulic fitting on a piece of equipment that has multiple hydraulic lines inside.
Error Proofing From A Different Angle: Definition of error proofing and some observations by W. Edwards Deming.
Finding The Balance: In error proofing "one size fits no one." To find what fits in your organization, start with the fundamental question of "How much responsibility for error proofing should be given to the tool and how much should be operator responsibility?" This section provides more on this concept.
Six Error Proofing Scenarios: Error proofing solutions all have trade-offs. You can have control or you can have flexibility. Rarely do you get both. This page looks at error proofing extremes as well as the middle ground.
How Much Are You Investing In Errors? If your current error proofing system or approach still leaves you with errors you are investing in errors, not error proofing. Error proofing is about quality and it is also very much about dollars and common sense. This page digs into that.
Understanding The Common Centerline: Not having a common centerline is one invisible place where your error proofing approach can introduce errors instead of eliminating them. If you want to know how to calculate a common centerline and why it is important, this page is for you.
There is more about error proofing in our tool pages.
Sturtevant Richmont tools are made in America by highly capable union hands.