Lesson 23 / 30 · Texas DPS 2026

Couple, tug, get out and look

The sound is not a lock.

Trailer brakes set. Tug in low. Then walk: jaws on the shank of the kingpin, no gap, handle locked, safety latch on, lines charged, landing gear up. This is how trailers get dropped on I-30. We will not let you skip the look.

The sound is not a lock. Tug in low, then walk: jaws on the shank, no gap, handle locked, lines charged, landing gear up.

Tug testJaws on the shankNo gapGET OUT AND LOOK

How do I know a fifth wheel is locked?

Tug test, then get out and look. Jaws on the shank of the kingpin, no gap, handle locked, safety latch on.

Also in Spanish

Frenos del tráiler puestos. Jalón en low. Luego caminas: mandíbulas en el vástago del kingpin, sin holgura, palanca trabada, seguro, líneas cargadas, patas arriba. Así se caen los tráileres en I-30. No te dejamos saltarte la mirada.

Alpha CDL Academy · 3221 W Pioneer Pkwy, Pantego, TX 76013 · (682) 358-8132 · Yard 900 TX-183, Fort Worth

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