Machine Guarding

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Machine Guarding
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Machine Guarding
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Moving Machine Parts
30 CFR 56.14107 (a) Moving machine parts shall
be guarded to protect persons from contacting
gears, sprockets, chains, drive, head, tail, and
take-up pulleys, flywheels, couplings, shafts,
fan blades, and similar moving parts that can
cause injury.(b) Guards shall not be required
where the exposed moving parts are at least seven
feet away from walking or working surfaces.
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February 9, 2001, a 21-year-old oiler with 8
months mining experience was fatally injured at a
crushed stone operation. The victim was
performing a task underneath a transfer conveyor
belt when he was caught between the conveyor belt
and a return roller.
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October 29, 2001, a 36-year-old laborer, with 5
weeks of mining experience, was fatally injured
at a surface sand and gravel mine when he became
entangled in a conveyor tension roller. The
victim had been assigned to do miscellaneous
clean up throughout the plant and became
entangled while carrying out his duties.
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June 1, 2002, a 32 year-old conveyor attendant
with 5 years mining experience was fatally
injured at an open pit copper operation. The
victim became entangled in a tripper conveyor
pulley.
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September 23, 2002, a 43 year-old plant operator
with 17 months experience was fatally injured at
a crushed stone operation. The victim was
removing fines that had packed around a winged
tail pulley of a belt that had been buried by
spillage. As the spillage was removed, the bound
conveyor belt moved backward a short distance and
caught the victim's arm between the belt and the
tail pulley.
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April 12, 2000, a 38-year-old laborer with 4
years mining experience was fatally injured at a
crushed stone operation. The victim and a
co-worker were making adjustments to a new
conveyor installation. The victim was aligning
the extended grease lines for the bend pulley
from inside the conveyor frame. He was caught and
drawn into the pinch point when the conveyor was
started without his knowledge.
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April 21, 2000, an 18-year-old plant operator
with 1 year mining experience was fatally injured
at a sand and gravel operation. The victim, who
had been operating the plant alone, became
entangled in the unguarded tail pulley of the
sand washer conveyor
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March 18, 1999, a 56-year-old superintendent with
4 weeks mining experience was fatally injured at
a sand and gravel operation. The victim was using
a metal bar to clean mud off of a return roller
underneath a conveyor belt when he was caught and
drawn into the pinch point.
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May 26, 1998, a 56-year old crusher operator with
5 days experience at this mine and 20 years total
mining experience was killed at a sand and gravel
operation. The victim was walking toward the
crushing plant and apparently passed too close to
the rotating drive shaft and coupling that
connected the crusher to the drive unit. He
became entangled in the drive shaft and coupling,
which were not guarded.
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July 14, 1998, a 63 - year old dredge operator
with 7 years of mining experience was fatally
injured at a sand and gravel operation. The
victim was attempting to clear debris built up at
the throat of the crusher. He was caught and
drawn into the crusher drive belts. The guard had
been removed and was laying nearby.
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Moving machine parts must be guarded rather than
restricting access to the area by installing
railings, chains, cable or gates.
Guarding Examples
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Any Comments or Questions?
Would anyone like to see an example of what a
guard might protect you from? Warning the
following slide is very graphic!
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