Yours

Educational199217 min629×480

Automatic Emergency Parking Brakes (as required by 30 CFR 75.523-3)

Mine Safety and Health Administration

Education

At the Internet Archive

Clips are not offered for this film: a public-domain mark that nothing bears out (no year, or a year no US term has left).

Not offered: its uploader or archive marks it public domain, and nothing the site holds bears that out (its record gives no year, or a year from 1978 on, which no US term has left), so where it is free is not known. Unclear is not offered. Open it at the Internet Archive.

About

Mine Safety and Health Administration

Automatic Emergency Parking Brakes (as required by 30 CFR 75.523-3) DVD590 (Was VC846) - 1992 This video discusses the applications of 30 CFR 75.523-3 to “all rubber-tire, self-propelled electric haulage equipment used in active workings of an underground coal mine – with the exception of personnel carriers.” Each of the specific subparagraphs of this mandatory standard is not only explained but also demonstrated to reinforce the concept.

Human-made No record of this work says a model made it. What this means.

Archive
Internet Archive, in FedFlix: US government films
Licence or status
Public domain (Creative Commons dedication), as the Internet Archive states it.
Credit
Mine Safety and Health Administration
Language
English
Who can watch
The archive gives no rating. Invisible Network shows it to Tweens profiles and older, judged from its collection and subjects. How films are placed