Title: WAC 29680648006
1WAC 296-806-48006
2Objectives
- 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
3Common 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.
4General 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.
5General 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).
6General 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.
7General 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.
8General 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.
9General 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.
10General 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
11Specific 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.
12Specific 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.
13Sources 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
14Web 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.