Edwards GXS 160 - Levelling the GXS Pump; Securing the GXS Pump; Lubrication of GXS Pumps; Connecting to Vacuum and Exhaust Systems

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Installation
M588-00-880 Issue E
3.1.2 Levelling the pump
The GXS dry pumping system must be located on a firm, level surface to ensure that it works correctly and is not
damaged. The pump must be level to a maximum of 3 degrees in any direction, measured at the pump inlet. It can
be located directly on the floor or on a frame. Ensure that access is possible to the emergency stop button (refer to
Figure 1, item 1). Guidance for access areas (general and service) is given in the installation drawings.
 Pumps with skids are provided with four floor mounting plates, Figure 2, item 2. If necessary, fit shims
(which must be supplied) to ensure that the dry pumping system is level.
 Pumps with castors are provided with four levelling feet, Figure 3, item 21. Once the dry pumping system has
been pushed into position, adjust the levelling feet to make sure that the dry pumping system is level and is
not supported by the castors. Refer to the installation drawings in Appendix A1 for suggested jacking height.
3.1.3 Securing the pump
To secure the pump in place to prevent inadvertent movement (for example during an earthquake), take note of the
following:
 Dry pumping systems with castors are supplied with 4 off seismic restraints as detailed in the installation
drawings.
 Dry pumping systems with skids are provided with 4 off mounting holes in the floor mounting plates as
detailed in the installation drawings.
 All dry pumping systems can be secured by fitting bolts or studs (not supplied) through the mounting holes in
either the mounting plates or seismic restraints. Use M16 (5/8 inch) bolts with shakeproof washers or other
suitable anchor bolts of the same size.
 Ensure that bolt size and spacing is adequate for the loads anticipated and the strength of the floor or frame.
 To locate the pump directly on the floor, use a concrete foundation with a mass of at least 1.5 times the mass
of the pump. Ensure the length and width of the foundation extend at least 100 mm (4 inches) beyond the
dimensions of the pump.
 If vibration transmission is a concern, vibration isolators (not supplied) should be fitted between the
mounting plates or seismic restraints and the bolt or stud.
3.2 Lubrication
The dry pumping systems are given a charge of oil before leaving the factory.
3.3 Connect the dry pumping system to the vacuum / exhaust
system
WARNING
Pipe the exhaust to a suitable treatment plant to prevent the discharge of dangerous gases or
vapours to the surrounding atmosphere.