(1) Types
of guarding.
One or more methods of machine guarding shall be provided to protect
the operator and other employees in the machine area from hazards
such as those created by point of operation, ingoing nip points,
rotating parts, flying chips and sparks. Examples of guarding
methods are-barrier guards, two-hand tripping devices,electronic
safety devices, etc.
(2) General
requirements for machine guards.
Guards shall be affixed to the machine where possible and secured
elsewhere if for any reason attachment to the machine is not possible.
The guard shall be such that it does not offer an accident hazard
in itself.
(3) Point
of operation guarding.
(i) Point
of operation is the area on a machine where work is actually
performed upon the material being processed.
(ii) The point of operation of machines whose operation exposes
an employee to injury, shall be guarded. The guarding device
shall be in conformity with any appropriate standards therefor,
or, in the absence of applicable specific standards, shall be
so designed and constructed as to prevent the operator from
having any part of his body in the danger zone during the operating
cycle.
(iii) Special handtools for placing and removing material shall
be such as to permit easy handling of material without the operator
placing a hand in the danger zone. Such tools shall not be in
lieu of other guarding required by this section, but can only
be used to supplement protection provided.
(iv) The following are some of the machines which usually require
point of operation guarding:
(a) Guillotine
cutters.
(b) Shears.
(c) Alligator shears.
(d) Power presses.
(e) Milling machines.
(f) Power saws.
(g) Jointers.
(h) Portable power tools.
(i) Forming rolls and calenders.
(4) Barrels,
containers, and drums.
Revolving drums, barrels, and containers shall be guarded by an
enclosure which is interlocked with the drive mechanism, so that
the barrel, drum, or container cannot revolve unless the guard
enclosure is in place.
(5) Exposure
of blades.
When the periphery of the blades of a fan is less than seven (7)
feet above the floor or working level, the blades shall be guarded.
The guard shall have openings no larger than one-half (1/2) inch.
