59Appendix A: Hydrouoric acid (HF) Applications
25.4. Place the interlock cover back into place.
26. Install the plenum as outlined below.
26.1. Ensure the red pins located on the attenuator as positioned away from the attenuator.
26.2. Place the new plenum into place by pushing it all the way down.
26.3. Push the red pins in.
27. Place the landing into position.
28. Place the plenum cover into position.