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WAC 29680648006

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Band saw safety. Objectives ... Specific to band saws. Fully enclose band saw wheels with wheel guards that meet both of the following requirements: ... – PowerPoint PPT presentation

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Title: WAC 29680648006


1
WAC 296-806-48006
  • Band saw safety

2
Objectives
  • We will be reviewing parts of WISHA rules on
    Machine Safeguarding WAC 296-806.
  • Youll learn
  • hazards of operating a band saw
  • general machine safety rules
  • rules specific to saws and
  • rules specific to band saws

3
Common Hazards
  • Safety Hazards of Band Saws
  • Point of operation - Contact with the moving
    blade may occur.
  • In-running nip points - Clothing, hair, or
    hands may be caught by and pulled into feed
    rolls or the pulley mechanism.
  • Kickbacks - Stock caught by the blade may be
    thrown back at the operator.
  • Flying Chips - Wood chips and splinters may be
    thrown by the cutting action of the blade.
  • Struck by Broken saw blades may fly out and
    strike employee.

The operator is required to hand-feed and
manipulate the stock against the blade saw along
a predetermined line. The operator must also keep
the stock flat on the work table and exert the
proper cutting pressure. This machine is usually
considered a manual feed tool.
4
General machine safety
  • This section contains the general requirements
    for equipment including
  • Securing machinery - Secure machines designed to
  • stay in one place.
  • Slipping hazards - Protect employees from
  • slipping hazards.
  • Arrange work areas to avoid creating hazards
    Make sure there is adequate space around
    machinery so employees can clean and handle
    material without interference from other workers
    or machine, do not have to stand in the way of
    passing traffic and bring in and remove materials
    safely.

5
General machine safety
  • Operating controls must be provided on each
    machine that stop the machine and that can be
    reached by the operator without leaving the
    operators position. Also make sure that the
    operator can easily reach all machine controls
    without reaching into a hazard area of the
    machine.
  • Unintentional machine operation - Protect
    employees by ensuring that foot-operated controls
    are located or guarded from being unintentionally
    moved to the on position. Also make sure that
    machines will not automatically restart when
    power is restored after a power failure (if
    restarting would create a hazard for employees).

6
General machine safety
  • Emergency stop controls if required, must meet
    all of these criteria
  • Be red in color
  • Be easily reachable from the operators normal
    work position
  • Be kept in good working order
  • Have to be manually reset before a machine can
    be restarted
  • Control machine vibration prevent excessive
    machine vibration
  • Prevent overspeed conditions Operate tools
    and equipment within their rated speed.

7
General machine safety
  • Hand feeding and retrieval tools Make sure hand
    feeding and retrieval tools meet the following
    requirements
  • are suitable for the work to be done
  • dont create a hazard when used
  • are of a size and shape that will keep the
    operators hands outside the hazardous area
  • are constructed so that they wont shatter if
    they come in contact with the machine tool

NOTE Tools such as push sticks or push blocks
can not be used instead of required safeguarding
unless a specific machine requirement allows it.
8
General machine safety
  • Adjusting or repairing machinery Make sure
    power-driven machinery is completely stopped
    before either making adjustments or repairs or
    removing material or refuse from the machine
  • Power transmission parts - inspect them and keep
    them in good condition
  • Protect employees lubricating moving machinery
  • by providing tools such as oil can or grease
    guns to keep
  • employees hands out of hazardous areas and by
    requiring
  • employees to wear closely fitted clothing.

9
General requirements for all saws
Applies to all materials and to all employers.
No longer separated into wood and metal. Now it
also applies to plastics, composites and other
materials.
10
General requirements for all saws
  • Make sure people who sharpen or tension saw
    blades have demonstrated skill in this area
  • Make sure saws are safe to use - This means
    removing from service a saw that has any of the
    following problems
  • Cracked
  • Dull
  • Badly set
  • Improperly filed
  • Improperly tensioned
  • Clean any saw where gum has begun to stick on the
    sides
  • Eliminate unintended fence and table movement
    during use
  • Keep hinged tables and fences firmly secured and
    in true alignment for all positions

11
Specific to band saws
WAC 296-806-48042
  • Fully enclose band saw wheels with wheel guards
    that meet both of the following requirements
  • The outside periphery of the wheel
    enclosure is solid
  • and
  • The front and back of the wheels are
    enclosed by solid material, wire mesh, or
    perforated metal.

12
Specific to Bandsaws (continued)
WAC 296-806-48042
Enclose or guard all portions of the blade except
for the working portion of the blade between the
guide rolls and the table.
Make sure the guard for the portion of the blade
between the sliding guide and the wheel guard
meets these requirements Protects the front
and outer side of the blade Is self-adjusting
to move with the guide Adjusts so the gap
between the guide rolls and stock is as small as
is practical.
13
Sources of Help
  • WAC 296-806
  • WAC 296-803, Lockout/Tagout
  • OSHA Machine Guarding eTool
  • American National Standards Institute (ANSI)
  • National Institute for Occupational Safety
    Health (NIOSH)
  • LI Machine Safeguarding Data Bank (available
    02/2005)
  • www.lni.wa.gov/Safety
  • Dept. of Labor Industries
  • 1-800-4BE-SAFE

14
Web addresses
  • www.lni.wa.gov/Safety
  • www.IdeaBanks.lni.wa.gov
  • The Machine Safeguarding Ideas Bank was launched
    in February 2005. It contains ideas to
    help employers find different ways of
    safeguarding their equipment.
  • www.osha.gov
  • www.ansi.org

15
  • Thank you for taking the time interest to learn
    about safety and health and how to prevent
    injuries and illnesses.
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