[REVIEW] 42082 - Rough Terrain Crane

[Amt0571]

2 minutes ago, Good old Lego builder said:

I had a kind of the same issue with the turntable on the Unimog and the Arocs last year. I used some compressed air (can) on the turntable and that seemed to work.

I'll try it then. I just want to try to avoid having to partially disassemble it to get to the gears...

So far I had only had issues with 42110 gearbox, that as soon as it gets dusty, it stops working in low gears. I've throwed the towel on that one though, as it's known to have issues anyway and I rarely play with it.

[Ctan]

On 12/9/2024 at 2:07 PM, Amt0571 said:

I have had this set assembled and exposed on a shelf for 5 years.

From time to time, maybe 2 or 3 times a year, my son asks to play with it and it had always worked fine.

Today though, I noticed that the superstructure only turned counterclockwise, with the clutch gear slipping when turning clockwise. I tried to turn it by hand and when turning counterclockwise it feels notchy. After I force it past a notch, it feels smooth until the next one. It's on these "notches" that the clutch gear slips.

I looked at the turntable ring wheels and, despite the set having collected dust during the years, everything looks fine. After further investigation, it seems the "notchiness" comes from some gear on the turntable drivetrain, but I have been unable to figure out which one and why it only happens in one direction.

Has someone had a similar issue?

I have exactly the same story as you.
Rarely used from time to time with my kid and displayed on the shelf. 

It rotates smooth only one direction, second is almost impossible and clutch gear is ticking loud. 
I didn’t figure out what causes the problem but I’m planning to take it apart, clean all the bricks and rebuild. 

[Mikdun]

To fix it you have to separate the turntable parts, clean it (there will be lot's of white powder) and (for best results) grease it. Use plastic friendly grease of course.