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00:00 Introduction 00:27 Symptoms 01:50 Description 02:30 Removing intake chamber 04:20 Removing shaft seal 05:28 A quick guide on changing oil on a Welch 1400 vacuum pump. This process is similar for many vacuum pump models as well. PUMP WAS RUNNING FOR 30 MINUTES BEFORE VIDEO WAS TAKEN.
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The Welch 1400 vacuum pump is a two-stage belt-drive pump with a free air displacement of .9 cfm and a ultimate total pressure of 1 x 10 -4 Torr. The Welch 1405 pump came without a motor or pulleys so I attached it to an old 1hp Dayton Farm Duty motor that runs at the WELCH CHEMSTAR Vacuum Pump Mounted Belt-drive 1402N-01 with WELCH Exhaust Filter.
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