• Place rack containing parts (relays, flashers, dials, and complete signal controllers) into the first tank filled with #222 Non-Ammoniated Ultrasonic Instrument Cleaning Solution or a water solution of SF-50 Solvent-Free Degreaser Concentrate (heated).
  • Cavitate for 10 minutes. Remove and drain.
  • Place rack into the Auxiliary Pan filled with Instrument Rinsing Solution. If SF-50 Solvent-Free Degreaser Concentrate is used the parts should be rinsed in warm water instead of Instrument Rinsing Solution. Allow to air dry.
  • Place Pan into Ultrasonic Cleaner and cavitate Instrument Rinsing Solution for 6 minutes. Remove and drain. Allow to air dry.

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