Hydraulic symbols

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Good morning, just wanted to let you know that it's a good idea to refresh yourself with the hydraulic symbols in your blueprint for the injection molding machine your about to work on. Nissei, Van -Dorn, and many others provide prints for each machine. Thermoformers like Irwin, Brown, also provide detailed blueprints for any maintenance work being done. Troubleshooting problem's with cycle times for delayed reaction due to hydraulic issues will be easier when you understand how they work; know adjustment range before changing any control valve setting.