Pneumatic switches & cylinders (8455)

[davidmull]

Iv recently bought a misb 8455 backhoe,this is a new set with all sealed bags,I'm in the process of building the model and iv noticed a few pneumatic differences.

First is 5 out of 7 pneumatic switches seem looser (easy to move) and the other 2 feel nice and tight like my 8110, do these switches vary like this in smoothness or is it the fact that these havnt been used in 7-8 years? Personelly I prefer the tighter type as its easier controll small movements!

Secondly the pneumatic cylinders slightly vary in smoothness too but 1 out of the 10 is strange as when u pull it out fully by hand it travells back in a little on its own,like there's a slight blockage.

Is this a common thing with misb pneumatic sets or is this a normal case with even newer sets,it's not bothering me it's more I'm interested to know!

Bare in mind this set is brand new all sealed and box is 100% like new.

By the way this is the best build experience iv had in years and way more complicated than newer sets I love it already :)dare I say I might put this set as my number 1 set along with my 8868 .

[Alasdair Ryan]

Its a great set,try connecting a pump to one end to see if this helps,also the switchs do vary in 'smoothness'.

[davidmull]

Its a great set,try connecting a pump to one end to see if this helps,also the switchs do vary in 'smoothness'.

That's great thanks alasdair.

[Bricktrain]

some of the new valves are quite tight in operation, some too tight when you are trying to use them with PF actuation, the cylinders are often tighter when new, usually loosen up with use.

[Sokratesz]

If you look into the new cylinders' hose notch you'll sometimes find that it wasn't completely punctured eg. the hole is too small. This causes the very slow operation and recoil when you quickly extend it.

- Sok.