Martin Sprocket & Gear Warning and Safety Reminders - Manual

It is the responsibility of the contractor,
installer, owner and user to install,
maintain and operate the conveyor,
components and, conveyor assemblies in
such a manner as to comply with the
Williams-Steiger Occupational Safety and
Health Act and with all state and local laws
and ordinances and the American National
Standards Institute (ANSI) B20.1 Safety
Code.
In order to avoid an unsafe or hazardous
condition, the assemblies or parts must
be installed and operated in accordance
with the following minimum provisions.
1. Conveyors shall not be operated
unless all covers and/or guards for the
conveyor and drive unit are in place. If
the conveyor is to be opened for
inspection cleaning, maintenance or
observation, the electric power to the
motor driving the conveyor must be
LOCKED OUT in such a manner that
the conveyor cannot be restarted by
anyone; however remote from the area,
until conveyor cover or guards and
drive guards have been properly
replaced.
2. If the conveyor must have an open
housing as a condition of its use and
application, the entire conveyor is then
to be guarded by a railing or fence in
accordance with ANSI standard
B20.1.(Request current edition and
addenda)
3. Feed openings for shovel, front
loaders or other manual or mechanical
equipment shall be constructed in such
a way that the conveyor opening is
covered by a grating. If the nature of
the material is such that a grating
cannot be used, then the exposed
section of the conveyor is to be guarded
by a railing or fence and there shall be
a warning sign posted.
4. Do not attempt any maintenance or
repairs of the conveyor until power has
been LOCKED OUT.
5. Always operate conveyor in
accordance with these instructions and
those contained on the caution labels
affixed to the equipment.
6. Do not place hands, feet, or any part
of your body, in the conveyor.
7. Never walk on conveyor covers,
grating or guards.
8. Do not use conveyor for any purpose
other than that for which it was
intended.
9. Do not poke or prod material into the
conveyor with a bar or stick inserted
through the openings.
10. Keep area around conveyor drive
and control station free of debris and
obstacles.
11. Eliminate all sources of stored
energy (materials or devices that could
cause conveyor components to move
without power applied) before opening
the conveyor
12. Do not attempt to clear a jammed
conveyor until power has been
LOCKED OUT.
13. Do not attempt field modification of
conveyor or components.
14. Conveyors are not normally
manufactured or designed to handle
materials that are hazardous to
personnel. These materials which are
hazardous include those that are
explosive, flammable, toxic or
otherwise dangerous to personnel.
Conveyors may be designed to handle
these materials. Conveyors are not
manufactured or designed to comply
with local, state or federal codes for
unfired pressure vessels. If hazardous
materials are to be conveyed or if the
conveyor is to be subjected to internal
or external pressure, manufacturer
should be consulted prior to any
modifications.
CEMA insists that disconnecting and
locking out the power to the motor driving
the unit provides the only real protection
against injury. Secondary safety devices
are available; however, the decision as to
their need and the type required must be
made by the owner-assembler as we have
no information regarding plant wiring,
plant environment, the interlocking of the
screw conveyor with other equipment,
extent of plant automation, etc. Other
devices should not be used as a substitute
for locking out the power prior to removing
guards or covers. We caution that use of
the secondary devices may cause
employees to develop a false sense of
security and fail to lock out power before
removing covers or guards. This could
result in a serious injury should the
secondary device fail or malfunction.
There are many kinds of electrical devices
for interlocking of conveyors and conveyor
systems such that if one conveyor in a
system or process is stopped other
equipment feeding it, or following it can
also be automatically stopped.
Electrical controls, machinery guards,
railings, walkways, arrangement of
installation, training of personnel, etc., are
necessary ingredients for a safe working
place. It is the responsibility of the
contractor, installer, owner and user to
supplement the materials and services
furnished with these necessary items to
make the conveyor installation comply
with the law and accepted standards.
Conveyor inlet and discharge openings
are designed to connect to other
equipment or machinery so that the flow
of material into and out of the conveyor is
completely enclosed.
One or more warning labels should be
visible on conveyor housings, conveyor
covers and elevator housings. If the labels
attached to the equipment become
illegible, please order replacement
warning labels from the OEM or CEMA.
The Conveyor Equipment Manufacturers
Association (CEMA) has produced an
audio-visual presentation entitled “Safe
Operation of Screw Conveyors, Drag
Conveyors, and Bucket Elevators.” CEMA
encourages acquisition and use of this
source of safety information to
supplement your safety program.
SEE OTHER SIDE FOR
SAFETY LABELS
WARNING AND SAFETY REMINDERS FOR
SCREW , DRAG , AND BUCKET ELEVATOR CONVEYORS
NOTICE: This document is provided by CEMA as a service to the industry in the interest of promoting safety. It is advisory only and it is not a substitute
for a thorough safety program. Users should consult with qualified engineers and other safety professionals. CEMA makes no representations or
warranties, either expressed or implied, and the users of this document assume full responsibility for the safe design and operation of equipment.
APPROVED FOR DISTRIBUTION BY THE SCREW CONVEYOR SECTION OF THE
CONVEYOR EQUIPMENT MANUFACTURERS ASSOCIATION (CEMA)
CEMA Document: SC 2004-01