Detach Roller Sleeves for Storage

What happens here

After removing the complete roller assembly from the machine, the next action is to separate the stain-soaked roller sleeve from its rigid metal core. The sleeve is slid off the core directly into a bucket of non-drying oil. This immediate immersion in the preserving oil prevents the stain from drying and hardening, and prepares the sleeve for either more thorough cleaning later or continued storage. This action is visually demonstrated for two separate rollers.

Goal: Separate roller sleeves from cores and initiate storage in oil.