DzieX

Hi, I did restore some of parts in photos, but I made mistake and 9 liftarms spent too much time in hydrogen dioxide. Is there a way to restore their color? I heard about burnishing, but I'm not sure it's that case.

I've tested it with pump from set 42008 which I bought meanwhile - works much faster. In meantime LEGO responded, that they sent me new improved pump for free :)

Came up it's most possible explanation. I've firstly tested new batteries with no result. After that I decided to dismount and open all cilinders, but i didn't help. Finally I've dissasembled truck apart to modules, took gearbox and removed the pump. Here's how it look. Looks like characteristic breaks. Sent an email to LEGO. I'm curious if they can help with that.

I will, thank you. But.. this eneloop charges up to 1.5V.

Eneloop Black AA freshly charged

I did that. It's slightly better, but not ideally

@Jurss thank you. I guess, I'll start with new, improved pump, but I'm also thinking about put some silicon spray gear in cilinders

Hmm, might be - meanwhile I've tested cylinders by plugging them directly to pump. They don't work fast. I'm pretty sure there's no leakage on cilinders/pipes as an arm stays in position when left with the pressure inside. That's my first pneumatic technic set - I have no comparison to others. Do you have any YT videos which show how it should work? I don't only mean this set, but cilinders itself.

Hi Does yours is also that slow? https://www.youtube.com/watch?v=e4bTuELbwr0a I bought it second handed - it wasn't used for a while. I appreciate any advice on that :)

So basically it's possible to fit it there. I didn't have enough parts in black color to finish the top, but it's functional. It could be 1 stud longer to also cover back of batterbox. RC version has less power then 9V - that's for sure. Anyway, it's just a try and I'm going to rebuild it back to 9V. I needed to replace original hook by magnetic one.

Hi, Do you know if it's possible to connect more than two electric components to WdDo hub?

So basically this side

Ok, I'll to that first, but need to check by element which are these

I'll try to check which component heats up. I have nothing to lose anyway.

Didn't even check, because + and - are still short circut. Can it be replaced by chip with similar, but not exactly same?