General Maintenance 4
Troubleshooting and Maintenance Manual 101
To replace the fan for the turbo pump
Procedure
1 Vent the MS. See the Agilent 7000 Series Triple Quad GC/MS Operation
Manual.
2 Turn the MS off.
3 Move the MS away from the GC to make the fan accessible.
4 Remove the fan plenum (four screws).
5 Disconnect the fan wiring from the extender cable (Figure 10).
6 Remove the four fan screws and the safety grill. Remove the fan. Keep the
screws.
7 Connect the fan wiring to the new fan.
8 Install the new fan with the flow arrow on the side pointing toward the
pump.
9 Add the safety grill and the four screws. Tighten the screws firmly.
10 Connect the fan wiring to the extender cable.
11 Pump down the MS. See the Agilent 7000 Series Triple Quad GC/MS
Operation Manual.
Do not touch the high vacuum pump. The pump could still be hot enough to burn you.
Make sure the safety grill that shields the fan blades is in place.
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