To Replace The Fan For The High Vacuum Pump - Agilent Technologies 5975C TAD VL 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
2
3
4
Do not touch the high vacuum pump. The pump could still be hot enough to burn you.
WARNING
5
6
7
8
Make sure the safety grill that shields the fan blades is in place.
WARNING
9
10 Reinstall the MSD covers.
11 Pump down the MSD.
114
Vent the MSD.
Remove the left side MSD cover.
Disconnect the fan wiring from the connector on the MSD frame
(Figure 14).
Remove the four fan screws and the safety grill. Remove the fan. Keep the
screws.
Disconnect the fan wiring from the old fan. The fan wiring ends in a small
connector on the back of the fan.
Connect the fan wiring to the new fan.
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.
Add the safety grill and the four screws. Tighten the screws firmly.
Connect the fan wiring to the fan connector on the MSD frame.
5975 Series MSD Troubleshooting and Maintenance Manual