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I am almost ashamed to put this in the "Questions from New Drivers" section since I am well into my second year and I still can't get this down despite spending countless hours on practicing my backing and coupling. I kinda want some advice from people that have significant amount of experience in getting this down (which will probably be a good chunk of people).
I am trying my hardest to back a 48ft trailer (with a converter dolly attached to the back) and make it connect to a 28ft trailer. Standard Rocky Mt Double.
I've gotten some great advice which helped out tremendously over the past years. One of them being that you turn your wheel in the direction you want your dolly to go. In a sense, if you want your con gear to move left, crank your wheel left which will make your trailer turn right, which in turn will push your converter dolly to the left. Easy enough right? Yeah. So I thought.
The key problems I am having is
1. The approach
2. Length of trailer. My con gear responds slower due to the long trailer
3. Speed... am I backing too fast?
4. I cant see a freaken thing half the time out of my mirrors
1. What is the easiest way to approach your back trailer? Assuming it sat in the middle of the yard and you had enough room from any angle? Would you pull along the left side of it and then cranked it to the left so the back box appears in the left mirror? If you did that, would you try to do a straight line backing or would you try to angle it like a 45 degree alley-dock? I've noticed it is easier to see the back of your trailer doing a 45 degree... but I've seen tons of people just do a straight line back.
2. The pintle hook on the back of the 48 ft trailer has a "plunger" system built in to keep the converter dolly from separating from the rear of the trailer if you forget to lock in the pintle hook. My question is, how much does this safety device secure the dolly from movement? Is this something that varies? And also, what is the best SETUP? Should the con gear, trailer, and power unit be as straight as possible? I had one driver tell me that it doesnt matter how jacked your power unit and trailer were as long as the con gear was in line with the trailer.
3. I was told that as soon as I caught the con gear jacking, I need to pull up to correct it. My question is, lets say the gear jacks to the left too much but needs to go to the right, which way should I turn my steering wheel? Should I pull my power unit/trailer straight as well? Or just straighten out the con gear and trailer?
4. What am I supposed to see out of booth mirrors if I am doing a straight line back? Should I see nothing of the con gear at all, or should a see a bit more of the left/right side of the tyres?
Thanks for your help in advance.
Backing and hooking
Discussion in 'Questions From New Drivers' started by road_runner, Jul 18, 2013.
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Best i have seen done......
Stage all your equipment in a line as close together as possible...
Then back them all together. Saw one guy do this. I thing he moved just enough to move about 6 feet. The distance of the kingpin setback -
Another guys I noted backed DOUBLE trailers against a converter dolly (which was spotted infront of a third trailer) and hooked his triples like that. Those guys I talked to are ####y as hell. And all they tell me is: The easiest way to get this down is to "just do it". -
Angle your tractor/trailer/dolly to the left so you can see the dolly tire...backing with a 48 will take longer to respond to wheel inputs so you'll need a little bit more room to maneuver
most new trailers are 102, if older dollies, they will be 96" so you wont be able to see it if thats the case.road_runner Thanks this. -
I watched a guy the other day hook a set and he rolled the dolly in front of the second trailer by hand. He than backed up to it with the first trailer, he hooked the dolly to the first trailer and than just backed up a couple more feet to push the dolly under the second trailer. Looked simple to me, but I imagine that only works on nice flat pavement.
MNdriver Thanks this. -
Yeah, stage your con gear (dolly) directly in front of the trailer, so when you're backing, it's only a foot or so to kingpin. I know, sometimes you get your con gear from a different area far from the trailer you're hooking up to. I think that's your problem, trying to back it from 50' away.
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Staging a con-gear is how I started out at. Most people that are new in the double/triple trailer field will just do that. The reason why I want to get proficient in backing a con attached to a trailer is because sometimes the con is already attached. I used to just jacknife the second trailer behind the con gear, and then hook my set that way. Another main reason is that once winter hits, it is extremely time consuming to spot a con gear infront of your rear box and then try to get it to latch on to the rear of your lead box. You are fighting a slippery ground plus sometimes the yards/drop off location will be anything but level. It would be much safer to just back with the gear already attached.
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I am a line haul driver with significant experience the first thing is like the original reply stage your dolly in front of your rear box prior to hooking onto your lead. Hook your lead back into your dolly staged in front of your rear box get close enough hook the dolly to your pintel hook and back in I usually can have a set hooked under 5 minutes. I was taught to back in with the dolly connected and found out it was the hard way to do things the only reason you should need to do this is maybe if there is deep snow and the lot is not plowed
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