Maintaining The Foreline Pump - Thermo Scientific TSQ 8000 Evo Hardware Manual

1
Performing Routine Maintenance

Maintaining the Foreline Pump

Maintaining the Foreline Pump
20 TSQ 8000 Evo Hardware Manual
The foreline (roughing) pump is usually located on the floor behind the TSQ 8000 Evo
instrument and occasionally requires maintenance. It establishes the vacuum needed to run
the turbomolecular pump inside the instrument. Typically, the foreline pump oil needs to be
replaced every four months. However, depending on your sample type and frequency of use,
your maintenance interval will be different. Refer to the foreline pump documentation for
information.
The foreline pump connects to the turbomolecular pump with a piece of 0.75 in. i.d. tubing.
The pump's power cable connects to the System Mech Pump connector near the back of the
TSQ 8000 Evo instrument.
CAUTION INSTRUMENT DAMAGE: The foreline pump must be set to the line voltage
used at your location. Always plug the foreline pump power cable into the System Mech
Pump connector on the rear of the TSQ 8000 Evo instrument and never into a wall outlet.
This prevents the foreline pump from operating when the instrument is powered off.
Figure 12. Connecting the TSQ 8000 Evo System to the Foreline Pump
Optional Mech Pump
Connection
System Mech
Pump Connection
Thermo Scientific