Disassembly For Initial Cleaning; Reassembly After Initial Cleaning - Agilent Technologies HS-16 User Manual

Technical Information

Disassembly for Initial Cleaning

This procedure involves the cleaning of the following elements:
Jet assembly

Drain plugs

Sight glass

Pump interior

To disassemble the pump:
1 Remove the cold cap as described in "Cold Cap".
2 Disassemble the internal jet system from the body of the pump in accordance
with the appropriate procedure within "Jet Assemblies".
3 Remove fill and drain plugs and the sight glass with its O-ring and graphite
gasket.
Set the O-ring aside as it must not be cleaned with a strong solvent. Alcohol,
acetone, and other solvents degrade O-ring materials reducing their ability to hold a
vacuum. If it is necessary to clean any O-rings, wipe with lint-free, clean cloth, wash
in detergent and water, or use a small amount of pump fluid.
Do not use any solvents on O-rings.
CAUTION
4 Thoroughly clean all components of the jet assembly and pump casing interior
(but not O-rings) with acetone followed by an alcohol rinse.
5 Remove all traces of cleaning fluid by carefully drying all components with
clean, dry, oil-free compressed air.

Reassembly After Initial Cleaning

To reassemble the pump:
1 Perform disassembly steps 1 to 3 in reverse order, then continue with the
following steps on a cleaned, reassembled pump.
2 Clean the interface and inlet flanges and O-ring grooves thoroughly with
acetone or alcohol, using clean, lint free rags.
3 Remove all traces of acetone and alcohol by carefully drying all components,
particularly the O-ring grooves, with clean, dry, oil-free compressed air.
4 Re-install the O-ring gasket.
High Throughput Diffusion Pumps User Manual 35