Bissell HS-20 instruction manual

Page 5

OPERATION AND MAINTENANCE OF THIS EQUIPMENT INVOLVES SERIOUS RISK. IT IS THE RESPONSIBILITY OF THE USER TO MAINTAIN SAFE OPERATING CONDITIONS AT ALL TIMES. VARIAN ASSUMES NO LIABILITY FOR PERSONAL INJURY OR DAMAGE RESULTING FROM OPERATION OR SERVICE OF THE EQUIPMENT.

Carelessly or improperly operated equipment can cause serious injury or death and/or damage to the equipment. The emergency and safety procedures in this manual are provided to help users and qualified persons to operate and service the unit safely. Recommendations are believed to reflect accepted industry practices in effect on the date of publication of this manual. Special applications must be reviewed and approved by an industrial hygienist or chemical safety engineer.

Varian has no control over the use of this equipment and is not responsible for personal injury or damage resulting from its use. The safe use and disposal of hazardous or potentially hazardous materials of any kind is the sole responsibility of the user. Observe all WARNINGS and CAUTIONS to minimize the serious hazards involved.

It is the sole responsibility of users of Varian equipment to comply with all local, state, and federal safe- ty requirements (laws and regulations) applicable to their system. Employ the services of an industrial hygienist and/or a qualified chemical safety engineer in order to ensure safe installation and use.

This instruction manual contains information which will assist qualified operators in the operation, and qualified service engineers to carry out field-servicing the Varian equipment.

i

Image 5
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