Background - The site's roughing pumps haven't been run for a few years and are to be re-purposed as standby "Beam Tube Roughing Pumps" (BTBPs) in the near future. The plan is to run one (of 6) during each of the next five consecutive maintenance days as a demonstration of their functionality. Following this, they will be brought up to current maintenance and relocated to the LVEA on or around the Beam Tube building penetrations. Today - EDP200 s/n CSM1165 Oil level good but dirty -> no action required at this time. Internal coolant 12 fluid oz. low - Added 12 fluid oz. of 50/50 mix of distilled water and Drystar coolant w/rust inhibitor. Installed modified ASA blank to cap inlet. Modification included tapped hole allowing addition of a mechanical vacuum gauge and 1/4" ball valve for gas admission. Ran pump for 1 hour with the only load being 2 LPM of UHP GN2. Pump ran quiet and achieved operating temperature; pressure < 29" Hg - no problems with this unit.