Safety fail-safe features of a tractor-trailer converter dolly.

[lewgrill]

Yep. What school are you with?

[herwoo12]

Hey is this the same Lew Grill from the truck driving videos with the manual....we still use those videos in our class. this is cool. We are on doubles and triples and I was searching converter dollies and this video popped up. Good old lew.

[MrMikejayeone]

thank you lewgrill!!!

[lewgrill]

Mike: There are glad-hands (where the dolly airlines connect) on the back of double/triple trailers that are equipped with shutoff valves. The shutoff mechanism is very easily recognized.

[MrMikejayeone]

great video, its very informative....how do u close/open the airline on the last trailer/

[Loudog577]

The air is supplied to the folly from the tractor. That's why he connects the service line and the emergency line, when you get in your tractor and release or push the red knob in it supplies air to it. You just want to make sure on the last trailer you close the air line, I always check my brakes with the hand brake instead of testing them with the service break when pulling doubles or triples.

[lootwar4life]

Very well explained. Thank You very much for your knowledge on this subject !!

[missicamps]

Thank you so much for the vid! Speaking as a female who has never seen these parts but studying for the test the visual aide and detailed explanation is very valuable!

[trunkssy5]

Nice this helped because I'm reading the study guide but without images it's hard to understand!! Hands on video definitely helps

[GEdwardCook]

Here is a new patented tool to move and line up the dolly with the lead trailer pin hook, the Dolly Jockey. I have attached a short video that I am sure you will find interesting.

Glen Edward Cook

[theact101663]

how do you suply the air to the converter dolly?