Bissell HS-20 instruction manual Maintenance

Page 41

Maintenance

3-12

Image 41

Contents HS-20 Diffusion Pump Sales and Service Offices Telephone Numbers Warranty Replacement and Adjustment WarrantyPage Page Iii Prohibited Action Explosion-Causing Condition Prohibited Action Result Page Vii Page Page Section Safety Considerations Section I Installation Table of ContentsList of Tables List of IllustrationsModel Technical Specifications Installation GeneralOperating Specifications See Figure ASA Outline Drawing HS-20 Diffusion Pump, with ASA Flanges Unpacking Cleaning a NEW PumpInstallation Utility and System Connections Safety Considerations and InterlocksVacuum Connections Cooling Water Connections See FigureCooling Water Connections Initial Vacuum Test Thermal Switches240/400/430/440/480 V Wiring Diagram HS-20 Diffusion Pump 415 V Wiring Diagram HS-20 Diffusion Pump Adding Pump Fluid Sight Glass Assembly Operation START-UP ProcedureOperation Shutdown ProcedurePeriodic Inspection Maintenance GeneralCleaning MaintenanceDo not overtighten the screw Disassembling and Reassembling the Cold CAP Refer to FigureExternal Fittings Cold Cap Assembly Disassembling the Lower Jet Assembly JET AssemblyDisassembling the Jet Assembly Refer to Figure Inch Jet Assembly Heater Replacement Maintenance Reassembling the Lower Jet AssemblyReassembling the Jet Assembly Jet Coupling Tighten clamping nuts to 250 in.-lbs Maintenance Replaceable Parts Maintenance Poor Pump or System Performance Troubleshooting LeakageOutgassing Troubleshooting