Aeth/Neph Inlet Cleaning

 

Purpose:  To clean BGI Sharp Cut Cyclone (SSC) inlets.

 

Required Equipment:          Squirt bottle with distilled water

                                                Pipe cleaners

                                                Soft bristle brush

2” wide paint brush

Lint free cloths (Tee shirt material will do)

#2 Phillips screwdriver, Gas pliers

Kimwipes and/or Scott paper towels (Scott brand is the most lint free)

Krytox grease

Additional Items, if available:  Compressed air for blow drying parts,

                                                                                                        Plastic container (9”x14”x4” deep) for washing parts.

 

References:  SOPMAN

 

 

 

The Sharp Cut Cyclone (SCC PM-2.5) Inlet

 

Head
 

Cyclonic Chamber

 
 

Main Sample Chamber
 

Emptying cup
 
                                 

 

 

 


Cleaning the SCC

 

  1. Disassemble the SCC by unscrewing the Main Transfer Chamber, unscrewing the Head and the Empting Cup from the Cyclonic Chamber.
  2. Empty the plastic tub, clean, rinse and dry.  Then fill with fresh distilled water.
  3. Put the main transfer chamber, head and empting cup in the water and clean using the brushes.
  4. Rinse by squirting with distilled water, shake, blow and wipe and set in the sun to dry.
  5. On the cyclonic chamber where the main transfer chamber screws on (the cone area) use a moist cloth to wipe clean and run the cloth through the hole.
  6. Squirt with distilled water to rinse.
  7. Use a pipe cleaner (folded to multiple thickness, if necessary) to clean in the orifices of the cyclonic chamber.
  8. Squirt with distilled water and rinse well.
  9. Shake, blow & wipe dry all the SCC parts and set in the sun to thoroughly dry

 

Check all the O-rings

 

Check all the O-rings on the SCC inlet. Make sure that they are not cut, nicked, chipped, deformed, etc.  Replace any that are.  Put a very thin coating of Krytox grease on all the O-rings to assure a good seal when the inlets are reassembled.  Do not grease any threads!  If you have to grease threads to get a good seal, something else is wrong!!! The O-rings should do all the sealing not the threads.

 

Reassembling the inlets

SCC Inlet

  1. Screw on the Head, Main Sample Chamber and Emptying Cup.
  2. Make sure each piece is tight enough for the O-rings to seal properly.
  3. DO NOT OVERTIGHTEN!