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are locked in place and free of damage or air leaks.If your vehicle has air brakes and a trailer, you will evaluate the air connections between the truck or tractor and the trailer as part of your vehicle inspection. Glad hands are coupling devices used to connect the service and emergency air lines from the truck or tractor to the trailer. The couplers have a rubber seal, which prevents air from escaping. Clean the couplers and rubber seals before a connection is made. When connecting the glad hands, press the two seals together with the couplers at a 90-degree angle to each other. A turn of the glad hand attached to the hose will join and lock the couplers.
When coupling, make sure to couple the proper glad hands together. Colors are sometimes used to help avoid mistakes. Blue is used for the service lines and red for the emergency (supply) lines. Sometimes, metal tags are attached to the lines with the words “service” and “emergency” stamped on them.
[Commercial Driver’s License Manual]
Comments
Alkam 2126
4 years ago
It a great app to study for your CDL tests
Cbow33
4 years ago
Great app
Livvy2u
4 years ago
Mom