Anyone ever had a defective pneumatic tube?

[Zerobricks]

I got my 8110 for under 140€ today, but one of the blue tubes actually splited lengthwise! Even after cutting it down it kept splitting!

Never seen anything like it.

Yes i already went to Lego costumer service, etc...

Anyone else experienced that?

Edited January 12, 2013 by Zblj

[Alasdair Ryan]

Nop,I guess it must of got caught in one of the machines.

Edited January 12, 2013 by Alasdair Ryan

[vliet]

I also had a problem with a pneumatic hose with the 8110 but it was my own fault with some scissors

[DarkShadow73]

I also had a problem with a pneumatic hose with the 8110 but it was my own fault with some scissors

2 problems I've had, 1 my fault...first on occasion with larger sets (8455 for example) sometimes I end up cutting on a slight angle, but I suppose that's fairly common. You think you are straight on with a knife, and it comes out a bit askew...2nd issue is after a long time the tubing tends to dry-rot, especially if exposed to dry, sunny conditions for too long, that happened to one of my 8464s

On a sidenote - have had the issue of trying to force tight tubing on nipples of the valves or T pieces and actually have split the tubing lengthwise on a few occasions...good thing models such as the 8455 give you a ton of extra tubing to use and I purchased a while ago from Lego Education a couple of bundles of extra tubing, so I've got plenty of extra...funny thing and I don't know if you all noticed the blue colored tubing like what was used in the 8464/59/39 is an easier fit, don't know why as compared to the black and gray tubing, but it has in my experience...but I also learned the trick from somebody on this forum long ago about dipping the ends of the tubing in water then putting them on the nipples, it works...I used to use a 3-in-1 oil with a needle end, but was always afraid it might breakdown the tubing or ABS plastic...

Edited January 13, 2013 by TechnicFreak

[Gene]

Stress on the blue rubber hose. Happened to my 8110 (4mm tip-off) because I'm using the twist-pushed method to secure the tube to Pneumatic Switch. Is there a discussion on the correct why to fix the tube to these pneumatic parts? Push-in/Pull-out or twist-in/twist-out?

Edited January 13, 2013 by Gene

[DarkShadow73]

Stress on the blue rubber hose. Happened to my 8110 (4mm tip-off) because I'm using the twist-pushed method to secure the tube to Pneumatic Switch. Is there a discussion on the correct why to fix the tube to these pneumatic parts? Push-in/Pull-out or twist-in/twist-out?

I agree with Gene - what really is the best method to attach the hoses without damaging them or killing your fingers trying to jam them on?

[Boxerlego]

I have never experienced that.

Don't dip the tubes in oil. You want the rubber tubing to be as tight and secure or they will pop off when under pressure. I slip this over the tube to clamp down seal on the pneumatic piston.

[Carsten Svendsen]

I don't see the big problem here. I thought there was only one way to fix tubes to any connection.

For the easiest way to put them on, just push them, by holding the tube a bit away from the mounting point. By doing so, you will create a bigger hole in the tubing as it's squeezed together and thereby making it easier for attaching.

Disassembly is another story though. With the old tubes you could just pull them off, but with the new tubes have to take them off, starting at the base of the connection as not to make them 0,5 cm shorter.