B-4 External Connections
To connect the roughing pump
Requirement: The pump must be oriented in a way that allows easy
daily access to the gas ballast valve and oil-level sight glass.
1. Place the PTFE drip tray on the floor, within 5 feet of the instrument.
2. Place the pump on the PTFE drip tray.
Warning: The pump and its connections can be
contaminated with biohazardous and/or toxic materials.
Always wear chemical-resistant, powder-free gloves when
performing this procedure.
Caution:
• To ensure correct operation of the roughing pump, the pump
must be installed within 1 degree of horizontal.
• The area where the roughing pump is located must have an
ambient temperature of 15 to 40 ºC (59 to 104 ºF).
• To ensure proper ventilation, the pump must be installed with
the following minimum clearances:
Warning: The roughing pump is heavy. To avoid injury, at least
two people must lift the pump.
Left side minimum clearance
is 15.24 cm (6 inches)
Right side minimum clearance
is 15.24 cm (6 inches)
Back side minimum clearance
is 15.24 cm (6 inches)
Front side minimum clearance
is 35.56 cm (14 inches)
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