What type of hand pump your ...

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What type of hand pump your are having? Hand pumps are of so many types and make. I am posting one link here, may be of use http://www2.emersonprocess.com/siteadmincenter/PM%20Valve%20Automation%20Documents/Shafer/Manuals/Hand_Pump_Service_Manual.pdf but if you give me a details i can provide you better documents.