To Assemble An Ei Source - Agilent Technologies 5975 Operation Manual

To Assemble an EI Source

Materials needed
• Gloves, clean, lint-free
• Hex ball driver, 1.5 mm (8710-1570)
• Hex ball driver, 2.0 mm (8710-1804)
• Wrench, open-end, 10 mm (8710-2353)
Procedure
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Do not overtighten the repeller nut or the ceramic repeller insulators will break when
CA UT IO N
the source heats up. The nut should only be finger-tight.
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5975 Series MSD Operation Manual for MassHunter
• Large (8650-0030)
• Small (8650-0029)
Assemble the repeller assembly.
a Install the repeller block insert into the source heater block assembly.
(See Figure 28.)
b Install the repeller insulators into the source heater block assembly and
repeller block insert.
c Install the repeller through the repeller insulators, then put the flat
washer followed by the belleville spring washer onto the end of the
repeller shaft and secure finger tight with the repeller nut.
Insert the drawout plate and the drawout cylinder into the source body.
(See Figure 28.)
Assemble the ion focus lens, entrance lens, and lens insulators.
Slide these assembled parts into the source body.
Install the setscrew that holds the lenses in place.
Install the interface socket.
Attach the repeller assembly to the source body using the two gold plated
screws and spring washers.
Install the filaments using the two gold plated screws and spring washers.
General Maintenance
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