The Machine Guard Program is designed to protect
Employees from hazards of moving machinery. All hazardous
areas of a machine shall be guarded to prevent accidental
"caught in" situations. References: General
Requirements for all Machines (29 CFR 1910.212), Woodworking
Machinery (29 CFR 1910.213), Abrasive Wheels (29
CFR 1910.215), Power Presses (29 CFR 1910.217), Power
Transmission (29 CFR 1910.219).
1. Guards: Barriers that prevent Employees from contact
with moving portions or parts of exposed machinery or
equipment which could cause physical harm to the Employees.
2. Enclosures: Mounted physical barriers which prevent
access to moving parts of machinery or equipment.
3. Point-of-Operation: The area on a
machine or item of equipment, where work is being done and
material is positioned for processing or change by the
machine.
4. Power Transmission: Any mechanical parts which
transmit energy and motion from a power source to the
point-of-operation. Example: Gear and chain drives, cams,
shafts, belt and pulley drives and rods. NOTE: Components
which are (7) feet or less from the floor or working
platform shall be guarded.
5. Nip Points: In-Running Machine or
equipment parts, which rotate towards each other, or where
one part rotates toward a stationery object.
6. Shear points: The reciprocal (back and forth) movement
of a mechanical part past a fixed point on a machine.
7. Rotating Motions an exposed mechanism are dangerous
unless guarded. Even a smooth, slowly rotating shaft or
coupling can grasp clothing or hair upon contact with the
skin and force an arm or hand into a dangerous position.
Affixed or hinged guard enclosure protects against this
exposure.
8. Reciprocating: Reciprocating motions are produced by
the back and fourth movements of certain machine or
equipment parts. This motion is hazardous, when exposed,
offering pinch or shear points to an Employee. A fixed
enclosure such as a barrier guard is an effective method
against this exposure.
9. Transverse Motions: Transverse motions are hazardous
due to straight line action and in-running nip points. Pinch
and shear points also are created with exposed machinery and
equipment parts operating between a fixed or other moving
object. A fixed or hinged guard enclosure provides
protection against this exposure.
10. Cutting Actions: Cutting action results when
rotating, reciprocating, or transverse motion is imparted to
a tool so that material being removed is in the form of
chips. Exposed points of operation must be guarded to
protect the operator from contact with cutting hazards,
being caught between the operating parts and from flying
particles and sparks.
11. Shearing Action: The danger of this type of action
lies at the point of operation where materials are actually
inserted, maintained and withdrawn. Guarding is accomplished
through fixed barriers, interlocks, remote control placement
(2 hand controls), feeding or ejection.
1. Guards shall be affixed to the machine where possible
and secured.
2. A guard shall not offer an accident hazard in itself.
3. The point-of-operation of machines whose operation
exposes an Employee to injury shall be guarded.
4. Revolving drums, barrels and containers shall be
guarded by an enclosure which is interlocked with the drive
mechanism.
5. When periphery of fan blades are less than 7 feet
above the floor or working level the blades shall be
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