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OPERATION SAFETY
The points and procedures in this section
are offered as an aid. It is hoped that by
complying with them, job safety can be
improved and accidents can be prevented.
It is the responsibility of the press owner to provide point of operation guarding - see OSHA regulations and ANSI standards. It is the responsibility of the press
operator to report to his supervisors any unsafe conditions
or unusual press behavior. Neither the list of points is
intended to be complete, nor is the order in which the
points appear relative to their importance.
PREPARATION TO START PRESS
- Never operate a power press unless you have
read and understand the safety and instruction
portion of the manual pertaining to your
operation.
- Make sure the work area and the press are free
of all obstacles.
- Make sure feeds, piece parts, etc., are properly
adjusted and ready to run.
- Check clutch air pressure gauge and
counterbalance gauge (if Included) for proper
pressure setting.
- Make sure that all press covers, safety devices,
and die safety blocks are in their proper
positions. A.N.S.I B11.1 safety standards
states that, “The employer shall provide and
enforce the use of safety blocks for use
whenever dies are being adjusted or repaired.”
- Inspect press and dies for safe operating
condition.
- Never reach into die area to lubricate tooling.
Use long handle brushes, swabs, rollers, etc., or
remote lubrication arrangements.
STARTING PRESS
- Have supervisor set the press stroking selector
switch to the desired mode of operation.
- Cycle press several times and observe carefully
that the mode is set correctly and that the clutch
and brake are functioning properly.
OPERATING PRESS
- Never place fingers, hands, or any part of the
body in the dangerous die area or near any
other moving part of the press.
- Never by-pass safety devices or tamper with
factory wiring.
- Never operate a power press with a foot switch
unless positive means are provided to keep the
operator away from the die area.
- Use safety tools, fixtures and supporting devices
for loading and unloading especially in narrow
forming, piercing, and notching operations.
- For manual loading or unloading, use safety
tools that are in good condition.
- Use care and good judgment in material
handling. Never stack parts or any other
objects on the bolster plate, or slide plate, or
near the die area. Use scrap and parts
containers and never allow them to become
over filled.
- Don’t become careless or overconfident. Avoid
preoccupation, inattention, distraction and
talking. Stay alert at all times. While feeding
the machine, don’t stand or sit on anything that
could cause you to fall, slip, or stumble into the
die area or under the press slide.
- If part jams or press stalls, always shut off all
power and exhaust the air from the die cushion
(if furnished). Before attempting to take any
corrective measures, call your supervisor.
DISCONTINUING USE OF PRESS
- When discontinuing use of press or leaving
press, shut off all power and stop flywheel. Use
flywheel brake if furnished; otherwise, let
flywheel coast to a halt. Have supervisor lock
disconnect switch in the “off” position and on
presses with part revolution clutches, have him
also turn the press stroking selector switch to
the “off” position and remove key. Never leave
an unattended press running.
- On Presses with part revolution (air) clutches,
leave the slide at bottom of stroke when
discontinuing use of press.
- For adjustments, repairs, or replacement if
necessary to position slide above bottom of
stroke, always support slide by inserting safety
blocks between bed and slide. Insure that
safety blocks are adequate.
GUIDELINES FOR MANAGEMENT
This section of “Press Safety Guidelines for Management is
intended to help the user management establish and maintain a
realistic control program for press safety. By defining and pointing
out definite areas of responsibility we trust that the entire safety
program will receive the leadership and full participation of all level
of management. Program objectives and employee
responsibilities must be established and defined in order to have a
successful and effective program; it must be constantly reviewed
and updated by management.
Management must encourage such a program by promoting
safety, maintaining interest, and by staying actively involved.
OPERATIONAL SAFETY
- Appoint a Safety Coordinator, to be responsible
for safety regulations, requirements and
suggestions. He must review and investigate
all accidents and “close calls.”
- Establish and issue press room safety rules.
Inform each employee of his responsibilities.
Make sure he understands them and knows
what is expected of him.
- A thorough review and an early inspection must
be made of existing presses, dies and point of
operation guarding to attain the degree of
responsibility required by A.N.S.I. B11.1 Safety
Standards and federal and state laws, OSHA. Review
what mandatory modifications are necessary.
- Equipment that is no longer safe and that cannot
be economically upgraded should be destroyed.
- Never allow persons legally under age to
operate or assist in the operation of a power
press.
- All personnel must be properly trained to
eliminate accidents and injuries.
- Regardless of the operator’s experience,
education or language barrier, it is the
responsibility of the supervisor to give him a
thorough explanation with each new job
assignment.
- No employee should be given a work
assignment that he does not fully understand.
Only properly instructed and thoroughly trained
personnel should be assigned to work on or with
any power press.
- It shall be the responsibility of the employer to
provide and adequate, clean, safe and
uncluttered work area around each power press.
- If a press malfunction is reported, stop the press
immediately, correct the problem, then resume
production.
- Investigate all accidents and close calls.
Analyze the reason for occurrence. Take action
to prevent recurrence. Keep records of the
investigation and preventive steps that were
taken.
- Only employees who understand the press, dies,
operator and safety requirements and who are
able to communicate this knowledge should be
given the responsibility of instructing and training
others to perform as power press operators.
- Press user management must decide what
personal protective safety equipment is required
to perform each job safely. Items such as safety
glasses, shoes, gloves, helmets, hand pads,
spats, protective sleeves and material handling
equipment are common in the metal working
industry. If noise levels are excessive protective
head sets and ear muffs are recommended.
- When designing point of operation guarding, or
dies, the manufacturing process should be
weighed heavily in favor of operational safety.
- Establish safe and convenient material handling
methods and procedures.
- Post in convenient areas the names, addresses,
and phone numbers of physicians, hospitals, and
members of the organization who are to be
called in case of emergency.
- All equipment must be electrically connected
according to the National Electric Code and be
consistent with other accepted practices.
- Provide adequate and proper fire protection
equipment.
POWER PRESS GUARDING
- Press manufacturers do not know and cannot
foresee the magnitude of optional applications of
power press. Therefore, only the press user can
determine the type of guards that have to be
used in order to perform the job safely. It is the
responsibility of the user management to make
certain that point of operation guarding and other
necessary safety devices are installed. The
press should be guarded in such a manner that
it is impossible for the operators to place their
hands or any other part of the body in the die
area.
- The press user should become thoroughly
acquainted with the safety devices commonly
employed in power press operations.
- Feeding devices are strongly recommended,
since they remove the operator from the die
area, and therefore allow more effective
utilization of guards and safety devices.
- Do not release a press for production before
installing and testing all guards and covers.
- Make frequent evaluation checks of all press
guarding and devices while the press is running.
Correct all unsafe findings immediately.
PRESS CARE THROUGH INSPECTION AND
MAINTENANCE.
- All maintenance and inspection personnel should
be specifically instructed, and must understand
proper maintenance and inspection procedures.
- Set up daily, weekly, and monthly press
inspection program. Use a checklist and verify
that the job is done correctly.
- Establish a preventive maintenance program.
Records of all maintenance work performed
must be kept.
- Since all equipment has limited life, high quality
maintenance personnel are required to obtain
maximum usage of your equipment.
- Reusing a power press for production following
maintenance should be the responsibility of a
qualified individual assigned by management.
- To maintain the original level of press reliability
careful inspection of mechanical, electrical, and
pneumatic areas must be made. This may give
advance warning of a hazard which then can be
corrected to prevent possible injuries and
damage.
SAFETY ENFORCEMENT
In order to have an effective safety program,
management at all levels must enforce every safety rule
and regulation. Strong disciplinary measures are
sometimes required. They should consist of a warning,
written reprimand, work suspension, transfer, demotion,
or possibly a dismissal. All infractions must be reported
and recorded. Once an infraction is noted, it shows
that an unsafe practice or condition has existed. This
may be the result of poor planning or improper training
and instructing. The reason for the infraction should be
analyzed in order to take corrective action.
TRAINING SUPERVISOR TRAINING
It should be the responsibility of management to instruct
their supervisors on safety, giving job instructions,
supervising operators, determining accident causes,
and building safety attitudes among the press
operators. Many accidents have occurred due to a
supervisor’s lack of training.
OPERATOR TRAINING
It shall be the responsibility of management to insure
proper training of press operators. A specific training
program should be instituted to instruct the operator in
safety, proper use of the press, and correct operational
procedure in performing each and every job. In addition
to the supervisor, the operator should be familiar
with the proper guarding of the die area. Never permit
an operator to start a job without complete instructions
from his immediate supervisor.
SAFETY SIGNS
PRESS SAFETY SIGNS
In order to alert and remind all personnel
associated with power presses of the
hazards resulting from unsafe practices
and procedures. The Heim Group has a
series of warning signs attached to every
new press. These signs are not meant to
frighten anybody, neither should they be
interpreted that the press is an unsafe
piece of equipment.
CAUTION: IF THE EMPLOYEE DOES
NOT READ OR UNDERSTAND
ENGLISH, IT IS THE EMPLOYER’S
RESPONSIBILITY TO INTERPRET AND
EXPLAIN ALL WARNING SIGNS.
It is very important that signs not be
removed, defaced, hidden or covered.
Review older equipment for updating of
safety signs. If existing signs are
damaged or additional signs are required,
they can be obtained from The Heim
Group. Press user management should
add additional signs to warn against
hazards if auxiliary equipment is used with
or installed on the press.
Illustrated are the most frequently used
warning signs which are
self-explanatory.
CLOSING WORD ON SAFETY
Management should encourage safe practices
and promote safety through an active safety
program.
Money losses due to accidents are considerable,
but the humanitarian reasons are far more serious. Unlike monetary losses, lost
hands and fingers can never be replaced.
Adhering to the most important rule in any
press room,
“NEVER PLACE ANY PART OF YOUR BODY
UNDER SLIDE OR WITHIN THE DIE AREA
UNLESS THE FLYWHEEL IS STOPPED,
POWER IS OFF AND THE SLIDE IS
BLOCKED,” will greatly aid in an effective
safety program. Guarding the point of operation
and all auxiliary equipment is of the greatest importance.
Additional information may be obtained from
the National Safety Council, State
Departments of Labor, the United States
Department of Labor and other sources.
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