Project 20 A & B
HO Trolley Maintenance
 Most used Trolleys especially those purchased at Train Shows , Swap Meets or Online have problems. These two Projects  show how some simple steps can be used to overcome poor running performance, broken parts and other issues. A Tyco HO scale Trolley and an AHM Trolley both popular models for auto reversing layouts are used here to illustrate these steps. 
 

	Video : AHM Trolley Restore
Project 20B : AHM HO Birney/Brill Trolley Restoration