When I joined the National Guard in early 80's we had the M60A3. My the time we got the M1 Abrams ~84, I had been retrained in chemical defense, but I am sure the maintenance guys would have loved it.@W.G.Ewald you served on M48 or M60 right? I am sure you guys would love this little thing back then:
I do not believe to this video, in any case of the first part. In "Soviet" MBT entire replacement of continuous track is 15-18 min. by the forces of crew. I do not think that in the American tank this norm much more. But for interconnection of track-links - is less than the minute.May look insignificant, but really usefull tool.