Specifications

Vacuum System 6
5975 Series MSD Troubleshooting and Maintenance Manual 175
Foreline Pump
The foreline pump (Figure 35) reduces the pressure in the analyzer chamber
so the high vacuum pump can operate. It also pumps away the gas load from
the high vacuum pump. The foreline pump is connected to the high vacuum
pump by a 130-cm hose called the foreline hose.
Figure 35 The standard foreline pump
Hose to vacuum pump
Ballast control
Fill cap
Exhaust outlet
Oil drip tray
Power switch
Oil level window
with oil mist filter
Drain plug (on front)
Standard pump (shown without safety cage)
Dry pump (shown without cover)
Hose to vacuum pump
Power cord
Exhaust outlet