MAX300-RTG : Hardware Manual Hardware Maintenance
56
Pump Maintenance
Note: Pump oil is considered a hazardous material and requires proper disposal
procedures that conform to local regulations.
Turbomolecular Vacuum Pump
Required Tools
(2) Flat Blade Screwdrivers
(1) Turbo pump oil wick replacement (Part #819916)
(1)Turbo pump service tool
(1) Small mirror (optional)
The turbo pump oil should be changed at least every year, as recommended by
the manufacturer. Before changing the turbo pump oil, vent the vacuum system as
described on page 50. The oil is changed by replacing a self-contained oil wick,
included in the spare parts kit. Remove the rubber feet from the bottom of the turbo
pump by unscrewing and discarding them. Engage the holes in the plastic plate on
the bottom of the pump, Figure 30 below, with the pins on the provided service tool
and unscrew the plate. The seal is made by an o-ring and the plate should be
removable by hand. Wipe the plate clean of old oil using a lint free cloth and set
aside.
Figure 30: Turbo Pump
Mounted to
vacuum chamber
O-ring that makes
the seal
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