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Overhead-type pullbacks
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Pullbacks/pullouts are
used as safeguarding devices on both full and part revolution power
presses. They are similar to restraints,
but pullbacks are designed to pull the operator's hands
away from the area of the closing dies (point of operation) during
each stroke of the power press.
Wrist bands, are secured
around both wrists of the operator, and the pullback is adjusted for the
particular operator and the particular die installed within the press.
When the press stroke begins the pullback device pulls the wrist bands
away from the die located within the press.
An overhead pullback device (above) is commonly used in press brakes that perform long-run jobs and when
small
to medium-size parts are being produced. It allows the operator freedom of
movement for loading and unloading parts without interference.
| Pullback
Regulations |
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Attachments must be connected to and operated
only by the press slide or upper die. [1910.217(c)(3)(iv)(a)]
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Attachments must be adjusted to prevent the
operator from reaching into the point of operation or to
withdraw the operator's hand from the point of operation before
the dies close. [1910.217(c)(3)(iv)(b)]
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A separate pullout device must be provided for
each operator if more than one operator is used on the press. [1910.217(c)(3)(iv)(c)]
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Each pull-out device in use must be inspected and checked for proper adjustment at the start of each
operator shift, following a new die set-up, and when operators
are changed. Necessary maintenance or repair on both must be
performed and completed before the press is operated. [1910.217(c)(3)(iv)(d)]
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Overhead-type pullbacks
Arm-type pullbacks
Arm-type pullbacks |
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Inspection and Maintenance Records. It is the
responsibility of the employer to make periodic and
regular safety inspections and keep accurate records
of them. [1910.217(e)(1)(i)]
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When using
pullbacks, visually inspect and check for proper
adjustment of the pullbacks each time operators change,
following a new die setup, and at the start of each shift
Make sure die protrusions do not interfere with the
pulling action. Continuing supervision and instruction
is required.
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