DEPARTMENT OF CONSUMER AND INDUSTRY SERVICESLABOR
AND ECONOMIC OPPORTUNITY
BUREAU OF SAFETY AND REGULATIONDIRECTOR’S OFFICE
GENERAL INDUSTRY SAFETY STANDARDS COMMISSIONGENERAL INDUSTRY
SAFETY AND HEALTH STANDARD
Filed with the secretary of state on
These rules take effect become effective
immediately uponafter filing with the secretary of state unless
adopted under section 33, 44, or 45a(9) of the administrative procedures act of
1969, 1969 PA 306, MCL 24.233, 24.244, or 24.245a. Rules adopted under
these sections become effective 7 days after filing with the secretary of
state.
(By
authority conferred on the general industry safety standards commission
by sections 16 and 21 of Act No. 154 of the Public Acts of 1974, as amended,
being SS408.1016 and 408.1021 of the Michigan Compiled Laws By authority
conferred on the director of the department of labor and economic opportunity
by sections 16 and 21 of the Michigan occupational safety and health act, 1974
PA 154, MCL 408.1016 and 408.1021, and Executive Reorganization Order Nos.
1996-2, 2003-1, 2008-4, 2011-4, and 2019-3, MCL 445.2001, 445.2011, 445.2025,
445.2030, and 125.1998)
R 408.12306, R 408.12310, R 408.12331, R 408.12341, R 408.12363, and R 408.12373 of the Michigan Administrative Code are amended, as follows:
PART 23. HYDRAULIC POWER PRESSES
GENERAL PROVISIONS
R 408.12306 Definitions; E.
Rule 2306. (1) "Ejector" means a device for removing work or material from between dies.
(2)
"Electronic-control device" means a device so designed and controlled
that when the operator's hand or any other another part of histhe
body is within the point of operation, the press cannot be tripped, and if the
hand or another any other part of the operator's body is inserted
into the point of operation area while the slide is descending, the device
shall automatically stop the slide. Such aThe device may employ
active circuit elements such as vacuum tubes, gas tubes, or semiconductor
amplifiers, (but not magnetic amplifiers,) in
conjunction with passive circuit elements, such as transformers,
inductors, capacitors, resistors or magnetic device operating coils.
R 408.12310 Definitions; P.
Rule 2310. (1)
"Pinch point" means any point, other than the point of operation, at which
it is possible for a part of the body to be injured by being caught between the
moving parts of the press or auxiliary equipment, or between moving and
stationary parts of the press or auxiliary equipment, or between the material
and moving parts of the press or auxiliary equipment.
(2) "Point of operation" means the area of the press where material is actually positioned, and where work is being performed, during any process such as shearing, punching, or forming.
(3) "Point of operation device" means a press control or attachment that does any of the following:
(a) Restrains the operator from inadvertently reaching into the point of operation.
(b) Prevents normal press operation if the operator's hands are inadvertently within the point of operation.
(c) Automatically withdraws the operator's hands if they are inadvertently within the point of operation as the dies close.
(4) "Presence sensing
device" means a device designed, constructed, and arranged to create a
sensing field or area, and to deactivate the control of the press when an
operator's hand or other part of histhe body is within thesuch
field or area.
(5) "Press," as
referred to in this part, means a powered machine, having a liquid energy
transfer media that actuates the slide motion toward and away from the bed
surface, (where the slide isbeing guided in
a definite path by a frame or cylinder).
(6) "Primary operation" means a preliminary press operation applied to material to be subsequently processed. Examples of primary operation include blanking, piercing, and corner cutting.
(7) "Pull-out device" means a mechanism attached to the operator's hands or arms and connected to the slide or upper die, and designed to withdraw the operator's hands from the point of operation as the slide or upper die descends.
R 408.12331 Two-hand controls.
Rule 2331. (1) A 2-hand
control shall require the application of both hands to operate the press,
and shall require concurrent pressure on both controls until a point is reached
in the downward stroke where the die opening is such that the operator cannot
remove histheir hands and place them within the point of
operation. Removal of 1 hand or both hands, before the closing portion
of the cycle, shall either stop the slide or return the slide to its starting
position.
(2) Two-hand controls for single-stroke operation, manufactured and installed on or after August 31, 1971, shall be designed to require release of all operator's hand controls before a second stroke can be initiated.
(3) Controls for more than 1 operating station shall be designed to be activated and deactivated in complete sets of 2-hand controls per operating station, by means capable of being supervised by the employer.
(4) If foot control is
provided, the selection method between hand and foot control shall be separated
from the stroking selector, and shall be designed so that the
selection may be supervised by the employer.
(5) A 2-hand control may
beis a mechanically, pneumatically, or electrically controlled
system.
(6) A 2-hand control shall
be installed to prevent "bridging" controls, and so that it
can be operated by 2 hands only.
(7) In a press operation requiring more than 1 operator, a set of 2-hand controls shall be provided for each operator. However, a foot control may be used with 2-hand controls if arranged to operate concurrently (otherwise, no cycle) and if the operator is not exposed to the point of operation.
(8) If each of the operating stations is provided with a lockout arrangement, provisions shall be made to prevent an unintentional press cycle when all of the operating controls are locked out.
R 408.12341 Presence sensing devices.
Rule 2341. (1) A presence
sensing device shall be so designed and installed so that,
when the operator's hands or any other another part of histhe
body disturbs the sensing field, the downward travel of the slide is prevented
or stopped. This device shall not be used as a tripping means.
(2) Equipment shall be installed so that failure of light or photoelectric relay or other energy source makes the press inoperative.
(3) These devices shall not, in themselves, create a physical or organic hazard to the operator.
(4) The safety distance (Ds) from the sensing field to the point of operation shall be greater than the distance determined by the following formula:
Ds = 63 inches/second X TS where:
Ds = minimum safety distance (inches); 63 inches/second = hand speed constant; and
TS = stopping time of press measured when slide has completed approximately half of the downward stroke.
(5) To protect all areas of entry to the point of operation not protected by the presence sensing device, the partial enclosure shall be used and shall not create a pinch point or shear hazard.
R 408.12363 Ejecting stock and scrap.
Rule 2363. (1) Spring
pads or rubber strippers, or equivalent means, shall be provided where required
on punching or piercing dies to assureensure that parts are
stripped or knocked out.
(2) Automatic ejection of stock and scrap should be considered during die design.
(3) The employeeemployer
shall provide means for safely handling scrap from roll feed or random length
stock operations. Scrap cutters used in conjunction with scrap handling
systems shall be safeguarded pursuant to table 2. Scrap recoil devices may be
used instead of scrap cutters.
R 408.12373 Inspection and maintenance records.
Rule 2373. The employer
shall establish and follow a program of periodic and regular inspections of his
presses to insureensure that all their parts, auxiliary
equipment, and safeguards are in a safe operating condition and adjustment.
The employer shall maintain records of these inspections and of the
maintenance work performed.