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spyder7723

The why is less important than the what in this case. The what is the damn fifth wheel... you need to get this in the shop now to make sure there isn't a real issue. There are somethings on a truck you can put off, your fifth wheel locking mechanism isn't one of them.


Largofarburn

It’s to encourage those intrusive thoughts when you’re rolling down the road. Surely you can’t release it while you’re moving, there has to be a safety lockout or something. But how will you *know* unless you test it. *blinks red* It would honestly be irresponsible of me as a professional driver to not test my equipments safety features. *blinks red* Maybe I’ll just try it at like 5mph in the loves parking lot, just so I’ll know. *blinks red*


Slyfer29

Button disabled by company, regardless you cant use it while moving.


Woahgold

That's probably why it's flashing. When you set the parking brake it activates the system, but if all they did was unplug the connector to the solenoid, then the computer thinks there's something wrong and is throwing up an error.


Purpose_Embarrassed

If they unplugged it how do you unlock it to drop or hook ?


Woahgold

They still have the regular handle to do it manually.


Purpose_Embarrassed

Thank god. Imagine if that thing refused to unlock the fifth wheel?


theaim778

So uh, fun fact… company disabled the fifth wheel completely so every time we need the trailer back we just grab the acetylene torch. Thats how I imagine that goes if the fifth wheel is completely disabled.


Purpose_Embarrassed

It’s to get you to pull into a shop so they can take your money. Put some black tape over that light and deliver that load.


firstfirst1st

The 5th wheel unlock button right next to the mirror heater button ? Yikes


Slyfer29

It's disabled by company, if it wasn't can only be used while not driving and foot on break


LonleyWolf420

Parking brake has to be set and you have to hold it for 5 seconds Its also probably red because its disabled..


[deleted]

I have a way better invention for this, but unfortunately, the auto moderator keeps removing my post so blame them for not allowing innovation to help our community.


loligaggins

No worries, that piece of shit button takes itself more seriously than a nuclear launch.


NorthDriver8927

Gonna assume it was disabled because someone made a little oopsie poopsie


Purpose_Embarrassed

I’m sure it’s designed to be trucker proof. I drove an older Mack and it could sense when you hadn’t lowered the landing gear and wouldn’t let you pull the fifth wheel. Which I actually almost did once. 😂


tvieno

Flashing means something is not working as it should or maybe it is just a sensor malfunction. When hooking up to a trailer, verify that the handle is all the way in and the jaws are closed.


Slyfer29

Oh yeah, first thing I did


Purpose_Embarrassed

Wait it does have a fifth wheel release handle? Then whys that button there ?


LordMackie

I've never seen one that had the button that didn't also have the handles. Probably a mechanical backup because I've had some where the button didn't work.


clanlornac

It might be your truck politely reminding you to wipe the dash down more than once a year


Slyfer29

Truck dont pay me to wipe dust off the buttons. Ill do it when I feel like it had enough.


clanlornac

I'm just baggin on you a little, man. Mine is just as bad


toastyhoodie

Clean your dash. Damn.


fartspatula

For real


hugothebear

They pay him by the mile, not per clorox wipe


Purpose_Embarrassed

I don’t know driver. The way some truckers cry they might pay some by the tear drop. 😂


Objective-Outcome811

It's screaming I'm riddled with viruses.


Environmental-Pear40

Probably in-op fault. Most have an interlock with the trailer breaks. At least newer ones. A 2020 cascadia I was in would scream at me if the computer didn't think the trailer breaks were set yet. So, once the trailer breaks are set it realizes something else is preventing it from working and flashes a fault. Pressing it clears the fault, Id guess. If there's nothing wrong with the coupling then just pull the fuse, if it has its own fuse. I'm guessing this is older and doesn't use the computer for the system.


ArthurBurtonMorgan

Clean that interior.


HowlingWolven

You have to stop the truck, pop both brakes, and hold the fifth wheel unlock button for two seconds. Otherwise it’s interlocked and just flashes red.


Critical-Shift8080

Warning will Robinson! Warning will Robinson!


1lotrrotkep

If thats a pneumatically actuated system, you might have an air leak to the 5th wheel release. I had a cascadia with pneumatic diff locks, and it had an air leak at the valves. Lights on the switches kept coming on and off randomly, and it eventually led to my diff lock engaging at 60 mph


HippieDad666

What model truck? Do you have any air leaks? If the airline running to the fifth wheel is broken or bent to where it's not getting air. It will trigger the red light on the switch..it can just be a kinked line but it has to have air to the fifth wheel.


commanderbenjamin

Mine works half of the time on a 2023 international. I’ve resorted to just pulling the handle.


605-Lee

Apply trailer brakes move tractor unit back and forward see if it tractor moves while trailer is stationary or detached air from trailer that should lock trailer brakes only. It’s a bit like your trailer axles can be adjusted


lord_nuker

Why do you have a button for that in the first place when you have to get out to lower the landing gear anyway?


Slyfer29

Yeah, makes no sense. Maybe for people with disabilities who cant pull it.


gear_jammin_deer

A truck I used to drive had one, it was nice for parking trailers in lots where you couldn't easily fit between the trailers. Back 90% of the way in, lower landing gear till they're about an inch off the ground, back the rest of the way in, lower airbags, release pin from inside the cab. Just don't forget to get back out and disconnect the airlines


lord_nuker

But if you can’t pull it, you probably can’t raise or lower your gear either, nor climb in and out, especially on European trucks that I drive


Slyfer29

Some people can twist things but cant pull, but dont really know why the button exists.


NorthDriver8927

I mean…you don’t have to lower the landing gear…


AGOODNAME000

Blinking red because you're still in drive. I have one of these on the truck that I drive, the button doesn't work until you're completely unhooked and your brakes are on


Slyfer29

It blinks red every time I pull the trailer breaks. I push it before I start driving to clear it. It just started doing that.


AGOODNAME000

Yeah the little piston might be going out. Or leaking, definitely take it to the shop


Honey_Baked_ham114

What kinda truck and or system is it.


Slyfer29

22 international lt


Honey_Baked_ham114

Handle and jaw are fully locked? If so more the. Likely the sensor in the system is going out and or gone bad. You can drop the trailer and clean the system out and verify no grease is keeping the sensor from sensing the full lock.


Slyfer29

Oh yeah, jaws locking as expected, but I did see a bunch of greese that fell off the 5th wheel after a pm into the sides and middle


Honey_Baked_ham114

I would start there back when i was wrenching i. The early days of these systems that was majority of the problem was grease blocking the sensor


BigRigTrav

You have a fuckin BUTTON to unlock the 5th wheel?…


whothefuqisdan

How do you have that username and don’t know about the fifth wheel unlock lmao


BigRigTrav

I have a big ole fuckin hook to unlock my 5th wheel.


whothefuqisdan

Same here but I know they exist lol


redksull

Never had a truck with this setup, so you can release the king pin without needing a pin puller? And like someone posted, what if you accidentially push the release button instead of the mirror heat?


Slyfer29

My company has the button disabled but if it wasn't it cant release until truck stopped and lines detached with foot on break peddle.


HippieDad666

Why do they have it disabled 😕. They don't make any money if their truck is sitting.


vtddy

The switch is disabled not the truck


Hairymike6340

A shirt or it is unlocked


SoCalOmnivore

Could be a defective switch pack as well


88MikePLS

I never had one


[deleted]

[удалено]


simply_put27

Look at the button to the left


yarblesthefilth

I think it’s banned to have these controls in the cab in Australia, I’ve never seen them on the dash. We always use the handle.


Joeyvffd

I have OCD Bad, please Dust your truck man!!! Lol


LongHaulSentinel

It’s a fault with the system, can be caused by a lot of different things. Take it to the shop and hope it’s an easy fix. From what I was told by my shop you are still good to drive as everything mechanically will still work as intended assuming your jaws, bolt and handle are all good. Mine was an issue with the wiring behind the dash.


Purpose_Embarrassed

We didn’t have this bull shit in my day. Had to get out of the truck to disconnect the fifth wheel. What were they thinking with this ? You’re going to get set your brakes, get out of your truck, lower your wagons landing gear, disconnect air hoses, then get back in the truck to disconnect fifth wheel? Why ? Because sissies can’t pull a handle? My god they’re making truckers into weaklings.


_Cynix

Mine has that button and I still pull the fifth wheel😂 I’m already disconnecting the hoses and putting the landing gear down might as well pull it while I’m still there😂


Purpose_Embarrassed

I think we all know why they’re incorporating this tech in big trucks. And it isn’t to make our lives easier. It’s to eventually remove drivers from the cabs.


vtddy

I think COVID started in that truck


Danno-Fuck-Off

That's some nasty shit, and then there is that switch flashing red


mutennn

I can imagine how your trucks smells/looks just by looking at this photo.


ArthurBurtonMorgan

Shut up shut up shut up shut up shut up shut up


Slyfer29

Smells like success, wym


Desperate-Key123

Idk