Peter Witt Trolley Poles

[gthomson]

I have an HO scale Peter Witt Spectrum unit in TTC colours and I haven't run it for a while. I have a small overhead wire set up and run the unit live wire which used to work fine but doesn't anymore. The unit is getting power but won't run. The pole is very loosely sitting within the roof and looks like the insert it goes into is not correct or missing. There is a brass or metal sleave the pole goes into, but still not fitting correctly. The hole looks too big for the pole and sheath.

Can this be replaced or am i doing something wrong?