Waters Xevo TQD Overview And Maintenance Manual page 220

B External Connections
Bear in mind these requirements when connecting the roughing pump:
• The pump must be horizontal, or within one degree of horizontal.
• The ambient temperature of the area in which you place the pump must
range between 15 and 40 ºC.
• The pump must be oriented so that it permits easy access to the gas
ballast valve and oil-level sight glass.
For proper ventilation, the following minimum clearances must apply:
Left-side minimum clearance
is 15.24 cm (6 inches)
Front-side minimum clearance
is 35.56 cm (14 inches)
To connect the roughing pump:
1. Place the PTFE drip tray on the floor, within 5 feet of the instrument.
Warning:
must lift the roughing pump.
2. Place the pump on the PTFE drip tray.
220 March 14, 2014, 715004387 Rev. B
To avoid personal contamination with biohazards
Warning:
or toxic materials, and to avoid spreading contamination to
uncontaminated surfaces, wear clean, chemical-resistant,
powder-free gloves when working with the pump and its
connections.
To avoid skeletal or muscle injury, at least two people
Back-side minimum clearance
is 15.24 cm (6 inches)
TP02689
Right-side minimum clearance
is 15.24 cm (6 inches)