Legris quick-disconnect air brake fittings are designed to release the line by applying which two steps?

• A. Push collar, pull line
• B. Pull line, push collar
• C. Twist, pull line
• D. Push line, twist

Answer: (A)

Legris quick-disconnect fittings release the line with a deliberate two-step action to prevent accidental disconnection. First, you push the outer collar to release the locking mechanism that grips the line. Once the lock is disengaged, you pull the line away to separate the fitting. This sequence—push the collar, then pull the line—ensures the connection stays intact during operation and only disconnects when you intentionally perform both steps. Twisting or pushing without pulling won’t disengage the lock, and pulling or twisting alone won’t unlock the fitting.