HOrailroading

Keep Your Locos Clean - John Waitkus

One of the most common problems that locomotives suffer from is intermittent electrical contact.   Most of the time this is due to the accumulation of "crud" (a mixture of oil and dirt).  Use oil and grease sparingly.   More is not better!   Oil only as necessary.    Frequently clean the places on the loco where electrical contact is made.   This includes the wheels, motor contacts, and on some locomotives, parts of the frame.

on locomotives