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Feeders - Proper coupling/uncoupling procedure?
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<blockquote data-quote="moldsporh" data-source="post: 2159988" data-attributes="member: 54834"><p>Yadad...congrats on the class A</p><p></p><p>Maybe this help you.....</p><p></p><p>When you couple the dolly to the rear trailer.the FIRST thing you do every time without fail, is get your flashlight and check the coupling. Make sure there's no Daylight between the fifth wheel and the trailer, make sure the shank or whatever is around the kingpin and the safety catch is in place. ...sometimes the safety catch only pops out a small amount, get used to how much it moves so you can catch it if it doesn't fully seat.</p><p></p><p>Now for the air.....Always pull the yellow first then pull the hand valve down, then push the red in, go to the dolly and on the lead trailer, connect your blue and red lines to the dolly, then connect the air lines from the dolly to the rear trailer...working front to back...turn on the service (blue) first, then the emergency (red). You turn on the blue first because this applies the brakes, then you turn on the red, this releases the parking brake. You don't want to release the parking brake, before you apply the service brake..this keeps the set from moving. Now go to the rear and check for air on the red activating the snubber, then check the service side.</p><p></p><p>When removing the air lines, you turn off the red first, this leaves the brakes applied from the service (blue) air.</p><p></p><p>Just remember, blue applies brakes, red releases brakes. Don't apply air to release brakes, until the brakes are set by the service air.</p><p></p><p>Blue air supply applies brakes, red air supply compresses parking spring which releases the brakes. This is why if you pull the red line off when it has air the brakes will set.</p><p></p><p>Don't turn on the air valve at the lead trailer until the hoses are attached to the rear trailer.</p><p></p><p>Hope that's not confusing.</p></blockquote><p></p>
[QUOTE="moldsporh, post: 2159988, member: 54834"] Yadad...congrats on the class A Maybe this help you..... When you couple the dolly to the rear trailer.the FIRST thing you do every time without fail, is get your flashlight and check the coupling. Make sure there's no Daylight between the fifth wheel and the trailer, make sure the shank or whatever is around the kingpin and the safety catch is in place. ...sometimes the safety catch only pops out a small amount, get used to how much it moves so you can catch it if it doesn't fully seat. Now for the air.....Always pull the yellow first then pull the hand valve down, then push the red in, go to the dolly and on the lead trailer, connect your blue and red lines to the dolly, then connect the air lines from the dolly to the rear trailer...working front to back...turn on the service (blue) first, then the emergency (red). You turn on the blue first because this applies the brakes, then you turn on the red, this releases the parking brake. You don't want to release the parking brake, before you apply the service brake..this keeps the set from moving. Now go to the rear and check for air on the red activating the snubber, then check the service side. When removing the air lines, you turn off the red first, this leaves the brakes applied from the service (blue) air. Just remember, blue applies brakes, red releases brakes. Don't apply air to release brakes, until the brakes are set by the service air. Blue air supply applies brakes, red air supply compresses parking spring which releases the brakes. This is why if you pull the red line off when it has air the brakes will set. Don't turn on the air valve at the lead trailer until the hoses are attached to the rear trailer. Hope that's not confusing. [/QUOTE]
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