Saratoga:
Ok, so a two or three axle unit that has the brakes ‘locked on’. Now, I’ve been told here that the front axle isn’t braked with the handbrake but it’s not driven either.However, I was not aware that the driven axle of the unit could have enough power forced through it to overcome the handbrake holding it still?
You never drove for some of the firms I did then… 
Saratoga:
Ok, so a two or three axle unit that has the brakes ‘locked on’. Now, I’ve been told here that the front axle isn’t braked with the handbrake but it’s not driven either.However, I was not aware that the driven axle of the unit could have enough power forced through it to overcome the handbrake holding it still?
Depends how good the breaking system on the truck actually is, the torque produced by a modern truck engine would give it a ■■■■ good shot!
Saratoga:
Ok, so a two or three axle unit that has the brakes ‘locked on’. Now, I’ve been told here that the front axle isn’t braked with the handbrake but it’s not driven either.However, I was not aware that the driven axle of the unit could have enough power forced through it to overcome the handbrake holding it still?
I reckon most modern autos would stall faced with trying to overcome well-maintained spring brakes on 4+ axles.
It’s steered axles so usually a steered midlift on a 6x2 won’t have parking brake either - assume it’s so driver can have more steering control if their is a sudden air loss and the brakes apply.
Biscuits:
Any chance of someone posting a picture of where this cable-tieing would happen? As a relatively recent Class 1 I’ll put my hands up to not really understanding this. I’m sure if someone tried this whilst working for one of the big names the company would go mental with all the ‘you’re not trained or insured’ lines. Could this happen with just zero warning? I had a trailer brake chamber go on the A14 and managed to nurse it 1/4 mile into a layby before it stopped. On a M way getting to the hard shoulder wouldn’t be a problem under similar circumstances. One thing is for sure, my first action would be call for the plod/HA. No way would I consider getting in the live lane unless everything is really crawling, preferably with some flash lights behind. In the US/Cananda, isn’t slacking the trailer brakes off part of their test?
Something missing in original HGV driver training, that actually includes an extensive theory test, seems to be enough of an explanation and test of understanding in the difference between air brakes on trucks and car brakes.
No-one’s clarified exactly which of the two lines they’re kinking and tying unless they’re talking about a leak in the pipe.
You could kink and tie wrap a line into the suspension air bag on the locked wheel/axle which might take enough weight off to then drag it.
Own Account Driver:
Biscuits:
Any chance of someone posting a picture of where this cable-tieing would happen? As a relatively recent Class 1 I’ll put my hands up to not really understanding this. I’m sure if someone tried this whilst working for one of the big names the company would go mental with all the ‘you’re not trained or insured’ lines. Could this happen with just zero warning? I had a trailer brake chamber go on the A14 and managed to nurse it 1/4 mile into a layby before it stopped. On a M way getting to the hard shoulder wouldn’t be a problem under similar circumstances. One thing is for sure, my first action would be call for the plod/HA. No way would I consider getting in the live lane unless everything is really crawling, preferably with some flash lights behind. In the US/Cananda, isn’t slacking the trailer brakes off part of their test?Something missing in original HGV driver training, that actually includes an extensive theory test, seems to be enough of an explanation and test of understanding in the difference between air brakes on trucks and car brakes.
No-one’s clarified exactly which of the two lines they’re kinking and tying unless they’re talking about a leak in the pipe.
You could kink and tie wrap a line into the suspension air bag on the locked wheel/axle which might take enough weight off to then drag it.
The one supplying air to the (assumedly) split diaphragm…
Own Account Driver:
Biscuits:
Any chance of someone posting a picture of where this cable-tieing would happen? As a relatively recent Class 1 I’ll put my hands up to not really understanding this. I’m sure if someone tried this whilst working for one of the big names the company would go mental with all the ‘you’re not trained or insured’ lines. Could this happen with just zero warning? I had a trailer brake chamber go on the A14 and managed to nurse it 1/4 mile into a layby before it stopped. On a M way getting to the hard shoulder wouldn’t be a problem under similar circumstances. One thing is for sure, my first action would be call for the plod/HA. No way would I consider getting in the live lane unless everything is really crawling, preferably with some flash lights behind. In the US/Cananda, isn’t slacking the trailer brakes off part of their test?Something missing in original HGV driver training, that actually includes an extensive theory test, seems to be enough of an explanation and test of understanding in the difference between air brakes on trucks and car brakes.
No-one’s clarified exactly which of the two lines they’re kinking and tying unless they’re talking about a leak in the pipe.
You could kink and tie wrap a line into the suspension air bag on the locked wheel/axle which might take enough weight off to then drag it.
the red air line to the brake chamber that is leaking air from one of the small tell tale holes on the side of it, disconnect it, bend it double, then cable tie it
on the side of the chamber is a key that goes in to the end of the chamber, push it in, turn it 90 degrees clockwise then tighten the nut up until it won’t go any more, this has removed the air leak and also released the brake on the locked wheel
it is perfectly safe to drive, all you have done is remove the park brake from that 1 wheel, will still have 5 wheels on the trailer with park brake effective
this does not affect the service (foot) brake and all 6 wheels on the trailer will still have service brakes
hope this helps
shuttlespanker:
Own Account Driver:
Biscuits:
Any chance of someone posting a picture of where this cable-tieing would happen? As a relatively recent Class 1 I’ll put my hands up to not really understanding this. I’m sure if someone tried this whilst working for one of the big names the company would go mental with all the ‘you’re not trained or insured’ lines. Could this happen with just zero warning? I had a trailer brake chamber go on the A14 and managed to nurse it 1/4 mile into a layby before it stopped. On a M way getting to the hard shoulder wouldn’t be a problem under similar circumstances. One thing is for sure, my first action would be call for the plod/HA. No way would I consider getting in the live lane unless everything is really crawling, preferably with some flash lights behind. In the US/Cananda, isn’t slacking the trailer brakes off part of their test?Something missing in original HGV driver training, that actually includes an extensive theory test, seems to be enough of an explanation and test of understanding in the difference between air brakes on trucks and car brakes.
No-one’s clarified exactly which of the two lines they’re kinking and tying unless they’re talking about a leak in the pipe.
You could kink and tie wrap a line into the suspension air bag on the locked wheel/axle which might take enough weight off to then drag it.
the red air line to the brake chamber that is leaking air from one of the small tell tale holes on the side of it, disconnect it, bend it double, then cable tie it
on the side of the chamber is a key that goes in to the end of the chamber, push it in, turn it 90 degrees clockwise then tighten the nut up until it won’t go any more, this has removed the air leak and also released the brake on the locked wheel
it is perfectly safe to drive, all you have done is remove the park brake from that 1 wheel, will still have 5 wheels on the trailer with park brake effective
this does not affect the service (foot) brake and all 6 wheels on the trailer will still have service brakes
hope this helps
Exactly
Ideally you’ll also need a ratcheting 19mm spanner for speed, and a massive can of WD40 to get the key off the side of the chamber if it’s there.
What people are saying with a tie wrap might be enough to build air in the other chambers and drag it with one wheel locked but you’d have to have gone a long way ignoring the warning signs to get stuck in a live lane for a single tie wrap to be the fix. The sort of driver that’s going to do a running repair with that fault won’t have got stuck in lane 2 in the first place.
Own Account Driver:
shuttlespanker:
Own Account Driver:
Biscuits:
Any chance of someone posting a picture of where this cable-tieing would happen? As a relatively recent Class 1 I’ll put my hands up to not really understanding this. I’m sure if someone tried this whilst working for one of the big names the company would go mental with all the ‘you’re not trained or insured’ lines. Could this happen with just zero warning? I had a trailer brake chamber go on the A14 and managed to nurse it 1/4 mile into a layby before it stopped. On a M way getting to the hard shoulder wouldn’t be a problem under similar circumstances. One thing is for sure, my first action would be call for the plod/HA. No way would I consider getting in the live lane unless everything is really crawling, preferably with some flash lights behind. In the US/Cananda, isn’t slacking the trailer brakes off part of their test?Something missing in original HGV driver training, that actually includes an extensive theory test, seems to be enough of an explanation and test of understanding in the difference between air brakes on trucks and car brakes.
No-one’s clarified exactly which of the two lines they’re kinking and tying unless they’re talking about a leak in the pipe.
You could kink and tie wrap a line into the suspension air bag on the locked wheel/axle which might take enough weight off to then drag it.
the red air line to the brake chamber that is leaking air from one of the small tell tale holes on the side of it, disconnect it, bend it double, then cable tie it
on the side of the chamber is a key that goes in to the end of the chamber, push it in, turn it 90 degrees clockwise then tighten the nut up until it won’t go any more, this has removed the air leak and also released the brake on the locked wheel
it is perfectly safe to drive, all you have done is remove the park brake from that 1 wheel, will still have 5 wheels on the trailer with park brake effective
this does not affect the service (foot) brake and all 6 wheels on the trailer will still have service brakes
hope this helps
The sort of driver that’s going to do a running repair with that fault won’t have got stuck in lane 2 in the first place.
Sums this thread up nicely I’d say.
Saaamon:
Own Account Driver:
shuttlespanker:
Own Account Driver:
Biscuits:
Any chance of someone posting a picture of where this cable-tieing would happen? As a relatively recent Class 1 I’ll put my hands up to not really understanding this. I’m sure if someone tried this whilst working for one of the big names the company would go mental with all the ‘you’re not trained or insured’ lines. Could this happen with just zero warning? I had a trailer brake chamber go on the A14 and managed to nurse it 1/4 mile into a layby before it stopped. On a M way getting to the hard shoulder wouldn’t be a problem under similar circumstances. One thing is for sure, my first action would be call for the plod/HA. No way would I consider getting in the live lane unless everything is really crawling, preferably with some flash lights behind. In the US/Cananda, isn’t slacking the trailer brakes off part of their test?Something missing in original HGV driver training, that actually includes an extensive theory test, seems to be enough of an explanation and test of understanding in the difference between air brakes on trucks and car brakes.
No-one’s clarified exactly which of the two lines they’re kinking and tying unless they’re talking about a leak in the pipe.
You could kink and tie wrap a line into the suspension air bag on the locked wheel/axle which might take enough weight off to then drag it.
the red air line to the brake chamber that is leaking air from one of the small tell tale holes on the side of it, disconnect it, bend it double, then cable tie it
on the side of the chamber is a key that goes in to the end of the chamber, push it in, turn it 90 degrees clockwise then tighten the nut up until it won’t go any more, this has removed the air leak and also released the brake on the locked wheel
it is perfectly safe to drive, all you have done is remove the park brake from that 1 wheel, will still have 5 wheels on the trailer with park brake effective
this does not affect the service (foot) brake and all 6 wheels on the trailer will still have service brakes
hope this helps
The sort of driver that’s going to do a running repair with that fault won’t have got stuck in lane 2 in the first place.
Sums this thread up nicely I’d say.
+1 
Happydaze:
Saratoga:
Ok, so a two or three axle unit that has the brakes ‘locked on’. Now, I’ve been told here that the front axle isn’t braked with the handbrake but it’s not driven either.However, I was not aware that the driven axle of the unit could have enough power forced through it to overcome the handbrake holding it still?
You never drove for some of the firms I did then…
Well clearly, as I’ve only had my C&E a matter of months. However, with most large vehicles I have driven the handbrake cannot be over-ridden even with shed loads of power available. Unless it’s a naff H/B or vehicle in general?
Saratoga:
Happydaze:
Saratoga:
Ok, so a two or three axle unit that has the brakes ‘locked on’. Now, I’ve been told here that the front axle isn’t braked with the handbrake but it’s not driven either.However, I was not aware that the driven axle of the unit could have enough power forced through it to overcome the handbrake holding it still?
You never drove for some of the firms I did then…
Well clearly, as I’ve only had my C&E a matter of months. However, with most large vehicles I have driven the handbrake cannot be over-ridden even with shed loads of power available. Unless it’s a naff H/B or vehicle in general?
you just haven’t tried hard enough
Saratoga:
Happydaze:
Saratoga:
Ok, so a two or three axle unit that has the brakes ‘locked on’. Now, I’ve been told here that the front axle isn’t braked with the handbrake but it’s not driven either.However, I was not aware that the driven axle of the unit could have enough power forced through it to overcome the handbrake holding it still?
You never drove for some of the firms I did then…
Well clearly, as I’ve only had my C&E a matter of months. However, with most large vehicles I have driven the handbrake cannot be over-ridden even with shed loads of power available. Unless it’s a naff H/B or vehicle in general?
Honestly, in this scaredy-cat age we live in you’re better off not knowing mate.
As above, the last word on this (in my opinion) rests with Own Account Driver. He put it succinctly. 
shuttlespanker:
Saratoga:
Happydaze:
Saratoga:
Ok, so a two or three axle unit that has the brakes ‘locked on’. Now, I’ve been told here that the front axle isn’t braked with the handbrake but it’s not driven either.However, I was not aware that the driven axle of the unit could have enough power forced through it to overcome the handbrake holding it still?
You never drove for some of the firms I did then…
Well clearly, as I’ve only had my C&E a matter of months. However, with most large vehicles I have driven the handbrake cannot be over-ridden even with shed loads of power available. Unless it’s a naff H/B or vehicle in general?
you just haven’t tried hard enough
Stoppit! I’m trying to be all sensible here and you come along tempting me!
i had an APU valve fail on an XF Superspace, first sign was the park brake light came on, pulled in to a layby to check it out, applied the park brake, jumped out, couldn’t see nor hear anything wrong, jumped back in, park brake locked on solid and would not release
this is an auto box truck too
put it in drive with the park brake lever in the off position, park brake still applied, give it plenty of right boot, it will move
i moved it from the outer edge of the layby to get it on to the pavement to give me more work space as the APU valve is part of the air dryer assembly behind the bottom off side step
I wouild be high up on the embankment with my phone and my sandwiches i dont know how to tie off a brake chamber and certainly wouldnt fancy being under a wagon in a live lane scenario but woudlnt sit in it either it only takes some idiot flying up behind someone else too close to hit you up the derrier
jammymutt:
I wouild be high up on the embankment with my phone and my sandwiches i dont know how to tie off a brake chamber and certainly wouldnt fancy being under a wagon in a live lane scenario but woudlnt sit in it either it only takes some idiot flying up behind someone else too close to hit you up the derrier
Where’s all this cop-speak coming from? “Live lane” and “set signs” things like that. I’m not having a go at you, I just saw in on your post and it reminded me.
Happydaze:
jammymutt:
I wouild be high up on the embankment with my phone and my sandwiches i dont know how to tie off a brake chamber and certainly wouldnt fancy being under a wagon in a live lane scenario but woudlnt sit in it either it only takes some idiot flying up behind someone else too close to hit you up the derrierWhere’s all this cop-speak coming from? “Live lane” and “set signs” things like that. I’m not having a go at you, I just saw in on your post and it reminded me.
We dont like old bill round here boy!
shuttlespanker:
you just haven’t tried hard enough
Oh, no, the engine was redlined and it made a hell of a racket but the vehicle wouldn’t shift at all.
It was an autobox on it though, which also redlined on temperature before it was decided to stick a drawbar on it and breifly we had an 80ft combination to get back to the garage, and the tyres stayed locked up…
Saratoga:
shuttlespanker:
you just haven’t tried hard enoughOh, no, the engine was redlined and it made a hell of a racket but the vehicle wouldn’t shift at all.
It was an autobox on it though, which also redlined on temperature before it was decided to stick a drawbar on it and breifly we had an 80ft combination to get back to the garage, and the tyres stayed locked up…
Where’s that thread about tomorrow’s driver?
Happydaze:
Where’s that thread about tomorrow’s driver?
I dunno, don’t look at me, I’m innocent, I’ve got an alibi… It’s over there in the corner, cowering from the attention…