Wintriss Shadow VI, User Manual

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1107200 Shadow VI User Manual
page 94 Appendix A Excerpts from OSHA Regulations and
ANSI Standards
Daily Tests in French and English
Extracts from OSHA Regulation 1910.217
OSHA Regulations PMA Interpretation
OSHA 1910.217 (c).
(c) Safeguarding the point of operation.
(1) General requirements.
(i) It shall be the responsibility of the
employer to provide and insure the usage
of “point of operation guards” or properly
applied and adjusted point of operation
devices on every operation performed on a
mechanical power press. See Table 0-10.
TABLE 0-10
Distance of opening Maximum width of
from point of operation opening (inches)
hazard (inches)
1/2 to 1 1/2..................................... 1/4
1 1/2
to 2 1/2..................................... 3/8
2 1/2 to 3 1/2..................................... 1/2
3 1/2 to 5 1/2..................................... 5/8
5 1/2 to 6 1/2..................................... 3/4
6 1/2 to 7 1/2..................................... 7/8
7 1/2 to 12 1/2 ................................. 1 1/4
12 1/2 to 15 1/2 ................................. 1 1/2
15 1/2 to 17 1/2 ................................. 1 7/8
17 1/2 to 31 1/2 ................................. 2 1/8
OSHA 1910.217 (c) (3) (i) (a)
(3) Point of operation devices.
(i) Point of operation devices shall protect
the operator by:
(a) Preventing and/or stopping normal
stroking of the press if the operator’s
hands are inadvertently placed in the
point of operation.
Presence-sensing device
(c) (3) (i) (a) Refers to the functional
requirement of a presence-sensing device
which prevents and/or stops normal stroking of
the press.
OSHA 1910.217 (c) (3) (iii)
(iii) A presence-sensing point of operation
device shall protect the operator as provided
in paragraph (c) (3) (i) (a) of this section,
and shall be interlocked into the control
circuit to prevent or stop slide motion if the
operator’s hand or other part of his body is
within the sensing field of the device during
the downstroke of the press slide.
(a) The device may not be used on
machines using full revolution clutches.
(b) The device may not be used as a
tripping means to initiate slide motion. European method (curtain of light) uses self trip
safety system effectively. Variance applied for
11/17/73 by Interlake Stamping Company to
use this fail safe system.
(c) The device shall be constructed so that
a failure within the system does not
prevent the normal stopping action from
being applied to the press when required,
but does prevent the initiation of a
successive stroke until the failure is
corrected. The failure shall be indicated by
the system. When failure occurs, the best indication is the
press won’t run.