2000 MS Hardware Maintenance
94
Mass Spectrometer Maintenance
Cleaning the Diffusion Pump
Diffusion Pump
A Circlip
J Heater
Assembly
B
Inlet Baffle
K
Harness Clamp
C
Centering Plate & Spring
L
Insulation Disk
D Jet
Assembly
M Insulation
E
Exhaust Baffle & Circlip
N
Over temperature Switch
F
Sight Glass Assembly
O
Inlet Port
G Body
P Exhaust
Port
H
Retaining Plate
Q
Ejector Stage
I Base
Plate
Hazardous chemicals may be present. Avoid contact with skin. Use proper
eye and skin protection.
WARNING
Toxic residues from mass spectrometer samples will build up in used pump
fluid. Dispose of all used pump fluid in accordance with applicable regulations.
Place a hazards warning label on the container, if appropriate.
To clean the diffusion pump:
1. Layer a number of clean lint free cloths or paper towels on the work surface.
2. Provide a 3" deep x 3" wide x 7" long container filled with acetone to a depth of
2".
3. Remove the pump.
