[Code of Federal Regulations]
[Title 30, Volume 1]
[Revised as of July 1, 2006]
From the U.S. Government Printing Office via GPO Access
[CITE: 30CFR77]

[Page 635]
 
                       TITLE 30--MINERAL RESOURCES
 
  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
 
PART 77_MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK 
AREAS OF UNDERGROUND COAL MINES--Table of Contents
 
              Subpart E_Safeguards for Mechanical Equipment
 
Sec.  77.400  Mechanical equipment guards.


    (a) Gears; sprockets; chains; drive, head, tail, and takeup pulleys; 
flywheels; couplings; shafts; sawblades; fan inlets; and similar exposed 
moving machine parts which may be contacted by persons, and which may 
cause injury to persons shall be guarded.
    (b) Overhead belts shall be guarded if the whipping action from a 
broken line would be hazardous to persons below.
    (c) Guards at conveyor-drive, conveyor-head, and conveyor-tail 
pulleys shall extend a distance sufficient to prevent a person from 
reaching behind the guard and becoming caught between the belt and the 
pulley.
    (d) Except when testing the machinery, guards shall be securely in 
place while machinery is being operated.