CDL Air Brake System Test — The Secret to Not Failing 🛑 This is the step that kills more CDL tests than anything else. 💀 Here’s how to check your low air warning and parking brakes the right way: 1️⃣ Pump the brakes until the low air warning light and buzzer come on — that should happen before 55 PSI. 2️⃣ Keep pumping between 20–45 PSI until both parking brakes pop out — first the red, then the yellow. 3️⃣ Whatever you do… DON’T touch those brakes again. The second you do, ❌ automatic fail. It

Take a look at our CDL program's newest training device- an Air Brake Demonstration Table, donated by Grant PUD! The table is a working model of a truck's air-brake system and will allow students to practice diagnosing and solving problems with their truck's brakes (a vital skill for when they're on the road). Thank you Grant PUD! #BigBendCC | Big Bend Community College