Practical Application Of Air Brakes Knowledge

Topic 32527 | Page 1

Page 1 of 1
Chief Brody's Comment
member avatar

I picked up a trailer yesterday that had an issue with the retaining bracket on the red glad-hand (the emergency air supply). As is often the case, it had gotten bent out thereby creating a loose connection with the airline coming from the tractor. I had bent it in some, but it continued to leak.

When I got to the shipper this morning, they required me to unhook from the trailer for loading. After I unhooked, I pulled out my tools to bend the bracket closer to the glad-hand to make the connection tighter. I wanted to check it for leaks and grabbed the red air line to connect it to the trailer, but after thinking for a minute, I changed my mind.

Question for those studying air brakes for their CDL test or those who just took the CDL test:

Why did I determine it was not a good idea to connect the red glad-hand to the trailer and "charge" the trailer with air?

CDL:

Commercial Driver's License (CDL)

A CDL is required to drive any of the following vehicles:

  • Any combination of vehicles with a gross combined weight rating (GCWR) of 26,001 or more pounds, providing the gross vehicle weight rating (GVWR) of the vehicle being towed is in excess of 10,000 pounds.
  • Any single vehicle with a GVWR of 26,001 or more pounds, or any such vehicle towing another not in excess of 10,000 pounds.
  • Any vehicle, regardless of size, designed to transport 16 or more persons, including the driver.
  • Any vehicle required by federal regulations to be placarded while transporting hazardous materials.

Shipper:

The customer who is shipping the freight. This is where the driver will pick up a load and then deliver it to the receiver or consignee.

HOS:

Hours Of Service

HOS refers to the logbook hours of service regulations.

OOS:

When a violation by either a driver or company is confirmed, an out-of-service order removes either the driver or the vehicle from the roadway until the violation is corrected.

DBS's Comment
member avatar

Because you were unhooked from the trailer and could risk releasing the trailer brakes with someone inside the trailer?

Turtle's Comment
member avatar

Great pop quiz, Chief. I like how it requires the reader to think of why and how a system functions the way it does.

Chief Brody's Comment
member avatar

Yep. Charging the trailer with air releases the spring brakes so the only thing holding the trailer in place would be the landing gear.

Old School's Comment
member avatar

I liked it too. Some rookies are surprised when the receiver makes them disconnect from the trailer and then asks for the keys to the truck. (Some of them actually do this) As Chief points out, there is a valid reason why some of them take extra steps for their safety.

Navypoppop's Comment
member avatar

Had it happen at our warehouse in Delaware. Driver was being loaded, had engine running for the a/c, no chock at wheels, trailer moved and fork lift drove off the dock injuring the operator but not seriously. I had no problem taking off the red airline, chocking wheels, turning over the keys and being safe rather than sorry.

Davy A.'s Comment
member avatar

At one of my customers, I gladly gave him my keys and unhooked the red. We were chatting and he told about the difficulty he had with some drivers not complying.

He really appreciated it, had me unloaded in very quick time. He said if the driver is a jerk about it, the unloading time increases exponentially lol.

Dan67's Comment
member avatar

After an incident years ago with the shipper losing my keys, I no longer hand them over. I just unhook and pull forward. If they still pitch a fit I just hand them a dummy key. I have a friend who owns a mobile locksmith and he gives old messed up blanks.

Shipper:

The customer who is shipping the freight. This is where the driver will pick up a load and then deliver it to the receiver or consignee.

PackRat's Comment
member avatar

After an incident years ago with the shipper losing my keys, I no longer hand them over.

I do the same. I'll hand over a random key from a vehicle I no longer drive.

Shipper:

The customer who is shipping the freight. This is where the driver will pick up a load and then deliver it to the receiver or consignee.

Page 1 of 1

New Reply:

New! Check out our help videos for a better understanding of our forum features

Bold
Italic
Underline
Quote
Photo
Link
Smiley
Links On TruckingTruth


example: TruckingTruth Homepage



example: https://www.truckingtruth.com
Submit
Cancel
Upload New Photo
Please enter a caption of one sentence or less:

Click on any of the buttons below to insert a link to that section of TruckingTruth:

Getting Started In Trucking High Road Training Program Company-Sponsored Training Programs Apply For Company-Sponsored Training Truck Driver's Career Guide Choosing A School Choosing A Company Truck Driving Schools Truck Driving Jobs Apply For Truck Driving Jobs DOT Physical Drug Testing Items To Pack Pre-Hire Letters CDL Practice Tests Trucking Company Reviews Brett's Book Leasing A Truck Pre-Trip Inspection Learn The Logbook Rules Sleep Apnea
Done
Done

0 characters so far - 5,500 maximum allowed.
Submit Preview

Preview:

Submit
Cancel

Join Us!

We have an awesome set of tools that will help you understand the trucking industry and prepare for a great start to your trucking career. Not only that, but everything we offer here at TruckingTruth is 100% free - no strings attached! Sign up now and get instant access to our member's section:
High Road Training Program Logo
  • The High Road Training Program
  • The High Road Article Series
  • The Friendliest Trucker's Forum Ever!
  • Email Updates When New Articles Are Posted

Apply For Paid CDL Training Through TruckingTruth

Did you know you can fill out one quick form here on TruckingTruth and apply to several companies at once for paid CDL training? Seriously! The application only takes one minute. You will speak with recruiters today. There is no obligation whatsoever. Learn more and apply here:

Apply For Paid CDL Training

About Us

TruckingTruth was founded by Brett Aquila (that's me!), a 15 year truck driving veteran, in January 2007. After 15 years on the road I wanted to help people understand the trucking industry and everything that came with the career and lifestyle of an over the road trucker. We'll help you make the right choices and prepare for a great start to your trucking career.

Read More

Becoming A Truck Driver

Becoming A Truck Driver is a dream we've all pondered at some point in our lives. We've all wondered if the adventure and challenges of life on the open road would suit us better than the ordinary day to day lives we've always known. At TruckingTruth we'll help you decide if trucking is right for you and help you get your career off to a great start.

Learn More