Specifications

General Maintenance 4
5975 Series MSD Troubleshooting and Maintenance Manual 125
If the diffusion pump has been heated with insufficient pump fluid (or with
a large air leak in the MSD), the remaining pump fluid may be severely
charred and blackened. Blackened pump fluid may also be baked onto the
internal parts (stack) of the pump. If so, you may have to remove the
diffusion pump stack and clean its parts, and the interior of the pump, with
methylene chloride. Be very careful when reinstalling the stack.
Misalignment of stack components can seriously reduce diffusion pump
performance.
6 Clean the diffusion pump flange on the analyzer chamber.
Figure 18 Filling the diffusion pump with fluid
Only use about half of
the second bottle