25 October 2004
must be installed at a location not easily accessible to shop personnel. After final
balancing and acceptance, secure the blade and mark its position so that it can be
returned to the balanced position if inadvertently moved. When the blast gate cannot be
placed out of the reach of shop personnel, then lock the blade in position. For example,
drill a hole through the body and blade of the gate and then insert a bolt and tack weld
Duct Support. If sprinkler protection is provided in the duct, horizontal
ductwork must be capable of supporting the weight of the system, plus the weight of the
duct half-filled with water or material being conveyed, whichever has the higher density.
Clean Out Panels. See paragraph 2-4.1.
Weather Stack Design and Location. See paragraph 2-4.3.
Air Cleaning Devices. See paragraph 2-4.4. Locate the air-cleaning
device outside the building.
Heating and Air Conditioning
. Provide heating and cooling according
SAFETY AND HEALTH CONSIDERATIONS. See paragraph 2-7 and the
a. Refer to section 7.2.2 of ANSI O1.1, Woodworking Machinery, Safety
Requirements for personal protective equipment.
b. Provide a means for separately collecting and disposing of any metal
scrap such as nails, band iron, or any wood containing metal. Do not use
the woodshop ventilation system to pick up these materials.
c. Avoid the use of wood painted with paints containing lead, hexavalent
consult an industrial hygienist to determine the exposure level and the
level of respiratory protection needed.
d. Use sharp and clean blades at the correct feed rate to generate less
heat. The generated heat can raise the wood or wood-containing product
to ignition temperature that could start a fire.