tamiya pershing question

[paulc]

Hi all has anyone else had the following issue with the Tamiya pershing. when trying to raise and lower the gun elevation it keeps jumping . thing is when I removed the spring it works fine. Kinda scratching my head on this as it should work if its ment to be there.

[Tiger6]

There is a slipper clutch in the elevation mechanism. When it gets a bit worn, the spring tends to overpower it.

[paulc]

its a brand new build out of the box already thought that. It works great without the spring

[tomhugill]

its a brand new build out of the box already thought that. It works great without the spring

I think there’s your answer

I’ve done a henglong stug elevation swap in mine and it works much better