102 Troubleshooting and Maintenance Manual
6 Vacuum System
Procedure
1 Turn off the instrument. See the Agilent 7200 Accurate-Mass Q-TOF
GC/MS System Operation Manual.
2 Unplug the power cord from the instrument.
3 Place a container under the drain plug of the foreline pump (see Figure 63
on page 118).
4 Remove the fill cap (see Figure 63 on page 118), then open the drain plug.
Drain the fluid completely by raising the motor end of the pump up.
5 Reinstall the drain plug.
6 Pour in new pump fluid until the fluid level is near, but not above the
maximum mark beside the fluid level window (see Figure 63 on page 118).
7 Reinstall the fill cap.
8 Reconnect the power cord.
9 Start up the instrument. See the Agilent 7200 Accurate-Mass Q-TOF
GC/MS System Operation Manual.
10 Pump down for 30 min, then inspect the pump for leaks.
11 Continue pumping down overnight and inspect the pump for leaks the
next day.
Never add pump fluid while the pump is on.
The fill cap and pump may be dangerously hot. Check that the fill cap and pump are
cool before you touch them.
Do not touch the fluid. The residue from some samples are toxic. Properly dispose of
the fluid.
Use only Foreline pump fluid (Inland 45 oil, p/n 6040-0834). Any other fluids can
substantially reduce pump life and invalidates the pump warranty.
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