Agilent Technologies 5975T LTM GC/MSD, Руководство по устранению неисправностей и техническому обслуживанию

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General Maintenance
10
Troubleshooting and Maintenance Guide 123
To Maintain the Dry Vacuum Pump
Materials needed
• Replacement tip seal kit (IDP3TS)
• Wrench, open-end, 1/4-inch × 5/16-inch (8710-0510)
• Razor blade or side-cutting pliers
• Compressed air (optional)
Procedure
1
Vent the instrument.
2
If necessary, slide the foreline pump to a safe, accessible
location.
The foreline pump may be located on the floor or on the lab
bench next to the GC/MSD.
3
Disconnect the pump from electrical power.
4
Remove the four M5 socket head bolts from the front
cowling, disconnect the electrical connector, and set the
cowling aside. See
Figure 6 .
5
Remove the four M5 bolts from the outboard housing and
take it axially off the frame.
6
Remove the worn tip seals and discard.
7
If compressed air is available, blow any remaining tip seal
debris from the scroll parts. If seal debris is attached to the
sides, use a razor blade to scrape it off.
8
Remove the new tip seals from the packaging. There should
be two tip seals in the kit: one for the orbiting scroll and one
for the outboard housing scroll.
9
Install the correct tip seal into the groove of the orbiting
scroll, and trim about 3 mm off the seal from the outer end
of the groove. See
Figure 6 .
10
Install the correct tip seal into the groove of the outboard
housing scroll and trim as in
step 9 . See Figure 6 .
WA R N I N G
The foreline pump can cause burns if touched when operating. It
has a safety shield to prevent the user from touching it.


WA R N I N G
The foreline pump may be hot.