One of the biggest mistake I see truckers do is drop a trailer incorrectly when doing a drop and hook.
On flat, level ground, DO NOT lower your gear all the way. Stop 1" from the ground and dump your air in the tractor to lower the trailer.
The reason being is that trailer will be loaded and moved to maybe different terrain. If that terrain is high, the king pin will still line up. If it low, the tractor can dump his air and get under and then raise it back up.
This makes life so much easier as you don't have to crank a loaded trailer with old rusty landing gear a hundred times to get the landing gear off the ground.
Also when dropping on a slope or hole which requires the legs to be extended further... DON'T DO IT! Lower the legs about 16". You can see the weather on the legs where the correct height is. Trailers sit alot and rust will be more apparent where the normal height exposed is.
Your landing gear might be 3" above the ground in extreme cases.
But this okay, Dump your tractor air and lower it to the ground. Then when the yard dog relocates the trailer it will be the right height for the next guy. Use your airbags to your advantage.
Dropping a Trailer Properly
Discussion in 'Experienced Truckers' Advice' started by CondoCruiser, Aug 28, 2010.
Page 1 of 16
-
corneileous, JabberJaws, djtrype and 1 other person Thank this.
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
-
now when you say "dump your air" how do you do that exactly? i just started trucking and love stuff like this. unfortunately i don't have a clue what your saying. how do you let the air out of the air bags? i thought that was all controlled by the air compressor?
NDBADLANDS Thanks this. -
Depends on the truck Matt, most company trucks if you want to dump the air you have to pull the hose from the phalanges right before the airbag.
-
Unless you have a cheapy truck, there is a switch by your 5th wheel unlock and axle lock switches.
-
Teach how to do it on the cheapie trucks !!!!
-
Always let the trailer down gently either by dumping the air or letting the trailer slide slowly off the fifth wheel. Dropping hard on the landing gear will damage the bushings. You can always tell when a trailer has been dropped hard. The crank will go "clunk, clunk clunk".
-
Even the Swift Trucks have air bag dump switches!
-
None of the FFE trucks did that I saw, as far as the way I dropped it was simple. Lower the landing gear just enough to make contact, then pull out SLOWLY. After that I would usually lower the trailer about 2-3 more inches after pulling out. Same thing as Condo is talking about, without the screwing with airbags lol.
-
Airbags is just flipping a switch but your method works good.
I driven many trucks over the years. I never had one without an airdump switch. I guess you have manual rollup windows too
Can't you tell I had to crank one up recently, lol. -
most of the time their is a button on the dash. cant tell you what it looks like though thats a secret
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
Page 1 of 16