Agilent Technologies 5975C TAD VL MSD, Troubleshooting And Maintenance Manual

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114 5975 Series MSD Troubleshooting and Maintenance Manual
4
General Maintenance
To Replace the Fan for the High Vacuum Pump
Materials needed
•
Fan (G1099-60564)
•
Screwdriver, Torx T-15 (8710-1622)
Procedure
1 Vent the MSD.
2 Remove the left side MSD cover.
3 Disconnect the fan wiring from the connector on the MSD frame
(
Figure 14 ).
4 Remove the four fan screws and the safety grill. Remove the fan. Keep the
screws.
5
Disconnect the fan wiring from the old fan. The fan wiring ends in a small
connector on the back of the fan.
6
Connect the fan wiring to the new fan.
7
Install the new fan with the flow arrow on the side pointing toward the
pump. The wires should be at the upper left, close to the connector.
8
Add the safety grill and the four screws. Tighten the screws firmly.
9 Connect the fan wiring to the fan connector on the MSD frame.
10 Reinstall the MSD covers.
11 Pump down the MSD.
WA R N I N G
Do not touch the high vacuum pump. The pump could still be hot enough to burn you.
WA R N I N G
Make sure the safety grill that shields the fan blades is in place.