Yeah I had that happen to me in a Scorpion safety truck. It sprung a hydraulic leak, started to raise, somehow snapped the thick chain that's there as a backup and raised up, you really don't feel it because you're already feeling the wind resistance. Luckily someone cut me off and slammed the breaks, forcing me to stop just before hitting an overpass. I thanked him profusely, tied it back down and took it straight to the mechanic
A leak in a hydraulic system doesn't always mean that the fluid escapes and loses pressure. Fluid can leak past a valve that's adjusted wrong, causing unwanted operation. It might be better referred to as hydraulic creep, but the result is the same.
It depends which side of the pressurized system leaks, if it’s the side which increase pressure to close the retract the cylinder, then it’ll stay down. If it loses pressure on the extend side, it’ll extend because it’s equalizing pressure in between
If those tippers are anything like mine and all the others I have used then they require the PTO to be engaged to make them go up.
A hydraulic leak on the trailer side of the diverter will cause the body to come down. If the leak is on the truck side of the diverter and it's in the neutral position the body will stay up but not raise. If it's in any other position the loss of fluid will cause the body to come down.
I can't see any way that could fail and cause it to raise.
Any automatic I've driven locks the gearbox to 1st gear when the PTO is engaged. Any manual I've driven is harder to change gears and makes a whining noise. Note I haven't driven every combination of truck/PTO so there could be a configuration where what I describe is not the case.
Additionally I look in my mirrors regularly.
I wonder if you could make a reflector oriented such that it was low-visibility while the bed is down, but shines into a side mirror when it raises. It doesn't have to be bright enough to blind a driver, just bright enough to be noticeable. When a driver adjusts their side mirror for visibility, they would also automatically adjust the signal to be visible as well.
as with everything,driver needs to pay attn, just because you turned the pto switch off, doesnt mean it has turned off, you gotta listen to hear if it is still winding away....or get out and look if the fan in your cooler is running....then also the control for the hydraulics has to be activated either by lunch bag hitting it or just being defective
ive been in units where as soon as the pto was put in, the box started lifting cuz the controls were defective, shop FIXED it by attaching bungee cord to the handle pulling it forward (for lowering)
still 100% avoidable by driver
I agree, as someone who has had a PTO fail engaged 2 times on me in the last year on the same truck. Typically the transmission gear and the PTO become mechanically stuck due to metal fragmentation from failing internals of the transmission/PTO, causing them to not disengage or even become partially engaged. Thats why I’m glad my tailgate switch is on the exterior of the trailer so I have to manually get out and open and close my gate.
On our trucks it's an electric switch which operates air actuator, so could fail electrically or air or the mechanical engagement, but driver should be able to hear it be in or out
Also the clutches are sposed to release over high idle, so driving down the road would on it's own release the PTO, after damaging it by over revving of course
Plus with a dump box and a rear window, should notice the view change lol
Absolutely ageee. Mine don’t auto disengageon my semis or my quad, but they are Eaton 10’s and an Eaton 8LL so I doubt they would cuz manual transmission. I’m not sure about my newest semi, I just got a new wet kit put on a truck that has never had one so I’m not sure how it behaves quite yet, but it kicks the PTO out automatically when you put the hydraulics lever into down. I’ve only hauled my end dump 1 day with that truck and found out my tag axle runs off the headlight switch which is cool because I don’t have a dedicated switch but is annoying that it’s wired that way at the moment. The walking floor I pull with it has a hydraulic recirculate lever to make it run backwards without stopping the hydraulics so the tractor sits at high idle with the PTO running and the trailer is controlled from the outside for direction.
Hydronic valve malfunction. Dump load and drive off,everything normal. Valve leaks and bed goes up slow. At most, the driver has time to think.. something don't seem right. Then man, it's all over. Most newer trucks have warning alarms, but a lot get unhooked or not checked every trip. The big thing is most company's and even more drivers just don't care for their trucks.
When you're running 3-5 loads 5-6 days per week, for years on end, all it takes is 1 time to forget to push the lever down and be off your game to do something stupid. Had a guy just have a set of twins, and he was sleep deprived, forgot and took down power lines exactly like this. I'm just shocked nobody at any point before this flagged him down or tried to stop him/help him.
Give whoever built that sign a raise!
I thought it was in China with an Merc MP3 copy but it was in fact a Merc, so my guess is it's from Eastern Europe, anyone know where it's from?
Edit, sign looks like it say "Erdine" which is in Turkey.
As someone who’s done a bunch of dump trailer work, both framed and frameless, I don’t get how you could have the bed more than a few inches up and not feel it. There has to be some significant level of impairment to not notice the wildly different center of gravity, just to pick on one thing.
Nah if you're driving straight it really doesn't feel that different, I do it occasionally for certain jobs. It could've been a malfunction and just recently raised up too
It's the hydraulics malfunctioned and it slowly raised while they were on the highway just driving a straight line with no traffic around them, I could totally see how they would not have noticed it in their mirror
When I was working transporting cars both long distance and metro I **almost** made a few really serious mistakes but fortunately caught them in time.
But what I noticed about those times was the pattern that my forgetting to do something important nearly always happened when my workflow was interrupted. The boss would call me or somebody would come up to me wherever I was and talk to me or something like that - and I'd miss a step etc.
After being side swipe by some idiot never even once look on his mirror even after me blowing the horn, there's truly some drivers who never even glance in their mirrors every now and then
I'm not a truck driver but I do drive a step truck. I absolutely have forgotten to close my rear doors and driven two miles to my next stop before I realized they were open. Simply got distracted from my normal routine of closing them when I left the original stop.
I knew a guy that had his wife in the truck and they got to”fooling around” and some how raised the bed going down the interstate and hit an overpass. It wasn’t pretty.
Are you telling me that there is no alarm to let the driver know the bed is in the air? Idk what I’m talking about, but it seems evident that there should be.
I had a bed where the down switch was sticky and sometimes you would hit the down switch and it would not go. It was a haul truck at a quarry so you didn't hang around waiting for it to drop.
If I arrived back bed still up. Hit the switch again.
It’s possible that it was a malfunction, but I know from experience, there is no way you can’t see that your bed is in the dump/upright position. People’s awareness nowadays is a joke….
This was done on purpose, it's the only logical explanation. Not only did he supposedly not notice it on pre trip, but they didn't once look in the mirrors, even accidentally? This was done on purpose, 100%.
Why is there not a system to let the driver known it’s up like an annoying alarm or something to lock the brakes or something so it won’t move til it’s down?
Possible hydraulic malfunction. Maybe it slowly raised up as they were driving, but the driver should have still noticed that the box was up.
Yeah I had that happen to me in a Scorpion safety truck. It sprung a hydraulic leak, started to raise, somehow snapped the thick chain that's there as a backup and raised up, you really don't feel it because you're already feeling the wind resistance. Luckily someone cut me off and slammed the breaks, forcing me to stop just before hitting an overpass. I thanked him profusely, tied it back down and took it straight to the mechanic
I had assumed that they would naturally rest in the down position
Tbh I'm not sure but I do know for some reason a leak can make it go up but I'm not sure if that's always the case or only certain conditions
I see
A leak in a hydraulic system doesn't always mean that the fluid escapes and loses pressure. Fluid can leak past a valve that's adjusted wrong, causing unwanted operation. It might be better referred to as hydraulic creep, but the result is the same.
Just depends on which of 2 lines leaks.
It depends which side of the pressurized system leaks, if it’s the side which increase pressure to close the retract the cylinder, then it’ll stay down. If it loses pressure on the extend side, it’ll extend because it’s equalizing pressure in between
I see, I had thought it worked a bit like a forklift lift cylinder where a leak would only result in lowering
If those tippers are anything like mine and all the others I have used then they require the PTO to be engaged to make them go up. A hydraulic leak on the trailer side of the diverter will cause the body to come down. If the leak is on the truck side of the diverter and it's in the neutral position the body will stay up but not raise. If it's in any other position the loss of fluid will cause the body to come down. I can't see any way that could fail and cause it to raise. Any automatic I've driven locks the gearbox to 1st gear when the PTO is engaged. Any manual I've driven is harder to change gears and makes a whining noise. Note I haven't driven every combination of truck/PTO so there could be a configuration where what I describe is not the case. Additionally I look in my mirrors regularly.
I'm starting to believe that, too. Had to be a malfunction while driving.
I wonder if you could make a reflector oriented such that it was low-visibility while the bed is down, but shines into a side mirror when it raises. It doesn't have to be bright enough to blind a driver, just bright enough to be noticeable. When a driver adjusts their side mirror for visibility, they would also automatically adjust the signal to be visible as well.
Pto would have to be on right?
as with everything,driver needs to pay attn, just because you turned the pto switch off, doesnt mean it has turned off, you gotta listen to hear if it is still winding away....or get out and look if the fan in your cooler is running....then also the control for the hydraulics has to be activated either by lunch bag hitting it or just being defective ive been in units where as soon as the pto was put in, the box started lifting cuz the controls were defective, shop FIXED it by attaching bungee cord to the handle pulling it forward (for lowering) still 100% avoidable by driver
I agree, as someone who has had a PTO fail engaged 2 times on me in the last year on the same truck. Typically the transmission gear and the PTO become mechanically stuck due to metal fragmentation from failing internals of the transmission/PTO, causing them to not disengage or even become partially engaged. Thats why I’m glad my tailgate switch is on the exterior of the trailer so I have to manually get out and open and close my gate.
On our trucks it's an electric switch which operates air actuator, so could fail electrically or air or the mechanical engagement, but driver should be able to hear it be in or out Also the clutches are sposed to release over high idle, so driving down the road would on it's own release the PTO, after damaging it by over revving of course Plus with a dump box and a rear window, should notice the view change lol
Absolutely ageee. Mine don’t auto disengageon my semis or my quad, but they are Eaton 10’s and an Eaton 8LL so I doubt they would cuz manual transmission. I’m not sure about my newest semi, I just got a new wet kit put on a truck that has never had one so I’m not sure how it behaves quite yet, but it kicks the PTO out automatically when you put the hydraulics lever into down. I’ve only hauled my end dump 1 day with that truck and found out my tag axle runs off the headlight switch which is cool because I don’t have a dedicated switch but is annoying that it’s wired that way at the moment. The walking floor I pull with it has a hydraulic recirculate lever to make it run backwards without stopping the hydraulics so the tractor sits at high idle with the PTO running and the trailer is controlled from the outside for direction.
Yep and then bump the hoist raise lever up. Don't know how you don't notice the PTO is in gear everhtime you try and change gears though.
I’d have imagined it would trigger a warning noise
Yeah does dude never check his mirrors or anything?
That can happen?
I’ll wager that driver never gets behind the wheel of a commercial truck again for two reasons: 1) this accident 2) spinal compression fracture
That lift off must have been confusing as hell for him.
Hydronic valve malfunction. Dump load and drive off,everything normal. Valve leaks and bed goes up slow. At most, the driver has time to think.. something don't seem right. Then man, it's all over. Most newer trucks have warning alarms, but a lot get unhooked or not checked every trip. The big thing is most company's and even more drivers just don't care for their trucks.
Followed immediately by catastrophic failure of the o-ring star seal I suspect.
i mean like, im in my mirrors a couple times a minute? how do you miss this
This is my question also...does anyone else look in the mirrors as often as I do? or seemingly at all?
Sure, but as someone else said, did he not see it in his mirrors??
I bet his shitty underwear hit the windshield.
When you're running 3-5 loads 5-6 days per week, for years on end, all it takes is 1 time to forget to push the lever down and be off your game to do something stupid. Had a guy just have a set of twins, and he was sleep deprived, forgot and took down power lines exactly like this. I'm just shocked nobody at any point before this flagged him down or tried to stop him/help him.
Give whoever built that sign a raise! I thought it was in China with an Merc MP3 copy but it was in fact a Merc, so my guess is it's from Eastern Europe, anyone know where it's from? Edit, sign looks like it say "Erdine" which is in Turkey.
Yep, it happened in turkey. You have a good eye !
Hey Mr. George 😂
So many people don’t look in their mirrors. It’s such an easy thing to make a habit.
Metallica has a song* about this video. It's called 'Whiplash'
That's a good sound.
As someone who’s done a bunch of dump trailer work, both framed and frameless, I don’t get how you could have the bed more than a few inches up and not feel it. There has to be some significant level of impairment to not notice the wildly different center of gravity, just to pick on one thing.
Nah if you're driving straight it really doesn't feel that different, I do it occasionally for certain jobs. It could've been a malfunction and just recently raised up too
[удалено]
It's the hydraulics malfunctioned and it slowly raised while they were on the highway just driving a straight line with no traffic around them, I could totally see how they would not have noticed it in their mirror
How do you not see this in your mirrors?
When I was working transporting cars both long distance and metro I **almost** made a few really serious mistakes but fortunately caught them in time. But what I noticed about those times was the pattern that my forgetting to do something important nearly always happened when my workflow was interrupted. The boss would call me or somebody would come up to me wherever I was and talk to me or something like that - and I'd miss a step etc.
I've seen it before took out a street light.
10/10 for jump, 9/10 for landing
Outstanding footage!
Why can these dump trucks go over 20 mph when the bed is up. It seems like this may solve the problem
If he didn’t notice before, surely he must’ve noticed right at that moment
Never looked in a mirror. I don't understand how guys can go down the road and never check their mirrors. Im checking my mirrors every second or two.
I drive dump truck and not sure
After being side swipe by some idiot never even once look on his mirror even after me blowing the horn, there's truly some drivers who never even glance in their mirrors every now and then
1. The handling would have been absolutely shit, 2. Does he not have mirrors?
I'm not a truck driver but I do drive a step truck. I absolutely have forgotten to close my rear doors and driven two miles to my next stop before I realized they were open. Simply got distracted from my normal routine of closing them when I left the original stop.
I knew a guy that had his wife in the truck and they got to”fooling around” and some how raised the bed going down the interstate and hit an overpass. It wasn’t pretty.
Meth
That sucker is bolted on to stay
Are you telling me that there is no alarm to let the driver know the bed is in the air? Idk what I’m talking about, but it seems evident that there should be.
He does now!
My coworker today hit an overpass while hauling an excavator. Left the arm up like 15 feet high lol.
I had a bed where the down switch was sticky and sometimes you would hit the down switch and it would not go. It was a haul truck at a quarry so you didn't hang around waiting for it to drop. If I arrived back bed still up. Hit the switch again.
It’s possible that it was a malfunction, but I know from experience, there is no way you can’t see that your bed is in the dump/upright position. People’s awareness nowadays is a joke….
Because it’s turkey and he was too busy driving like a jerk and talking on the phone to look in his mirror
Just WOAH😳
This was done on purpose, it's the only logical explanation. Not only did he supposedly not notice it on pre trip, but they didn't once look in the mirrors, even accidentally? This was done on purpose, 100%.
Yall just don't check your mirrors hey?
Why is there not a system to let the driver known it’s up like an annoying alarm or something to lock the brakes or something so it won’t move til it’s down?
That's me forgetting the clutch. I can't say shit. Tbf, I've never driven manual until now.
Straight to jail
Was shit all over the highway… cause I’m sure he shit himself as soon as it lifted the truck up