This video demonstrates the process for replacing the knobs on an analog freeze dryer. Here's a step-by-step guide:

Tools needed:

• 13mm wrench
• 1/16 Allen wrench

Steps

1. Prepare the knob assembly: If applicable, attach the power cord to the knob connector.
2. Insert the connector: Place the connector with the attached power cord (if applicable) into the designated hole on the freeze dryer.
3. Attach the washer: Slide the washer onto the connector protruding from the hole.
4. Secure with the nut: Screw the nut onto the connector over the washer.
5. Tighten the nut: Use the 13mm wrench to tighten the nut slightly beyond finger tight to ensure it's secured.
6. Loosen the knob screw: Use the 1/16 Allen wrench to loosen the screw inside the knob. This will allow you to attach the knob to the connector.
7. Attach the knob: Place the knob onto the connector, ensuring proper alignment.
8. Finalize the knob installation: Tighten the screw inside the knob to secure it in place on the connector.

Note: The process involves simple hand tools and is a straightforward task that can be performed by users with basic mechanical skills. It's important to ensure the nut is tight enough to hold the assembly in place but not so tight that it damages the connector. The Allen wrench is used to secure the knob onto the connector, ensuring it does not come loose during operation.