Preventive Maintenance
Inlet Maintenance
Thermo Fisher Scientific
Partisol 2000
i
and Partisol 2000
i
-D Instruction Manual
10-5
Note
Be sure that after cleaning the assembly the acceleration nozzle is
clean. If not, use a cotton swab and cleaner to remove any
contamination.
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5.
Inspect the large diameter, impactor nozzle O-ring for damage or wear.
Replace it, if necessary. If the O-ring is still in good condition, apply a
thin film of silicone grease to the O-ring. Also, apply a light coating of
silicone grease to the aluminum threads of the acceleration assembly.
6.
After reinstalling the bug screen, align the top plate markings with the
lower plate markings. The four holes in the top plate should align with
the four spacer standoffs. Insert the top plate into the lower plate and
tighten the four pan-head screws.
Use the following procedure to clean and maintain the lower collector
assembly.
Note
Most of the contamination in the inlet is usually found on the
collector plate.
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1.
Using a general-purpose cleaner with a paper towel, clean the collector
assembly walls and three vent tubes. You may need to use a cotton swab
to clean these vent tubes. Also, clean the bottom side of the collector
assembly.
2.
Using a cotton swab, clean the weep hole in the collector plate where
the moisture runs out to the moisture trap. Remove the rain jar and
clean it. Inspect the rain jar’s brass nipple fitting to ensure that it is
secure and free from blockages. When reinstalling the rain jar, place a
light coating of silicone grease on the gasket inside the cap of the rain
jar. This will ensure a leak-free fit.
3.
Inspect the two inlet-to-inlet, tube sealing O-rings for damage or wear.
Replace, if necessary. Apply a light coating of silicone grease to these O-
rings to ensure that a seal is made when they are reinstalled on the 1-
1/4-inch OD sample tube.
4.
Clean the lower collector assembly’s threads to ensure a tight seal when
the two halves are reassembled.
Lower Collector
Assembly Cleaning and
Maintenance
