Page 292 - Safety Memo

1. All portions of the band saw blade must be guarded O. All portable pipe threading/cutting machines, portable power-
except between the guide rolls and the table. 4310(a)(1) driven augers (earth drills), and portable power drives shall be
permanently equipped with a momentary contact device. 4086
2. Band saw wheels must be enclosed. 4310(a)(2)
M. Chain saws are regulated as follows:
1. Chain saws must be equipped with a constant-pressure Traffic Control
control that returns the saw to idling speed when released.
3425(a)(3) Regulations concerning traffic control are noted below:
2. Chain saws must have a clutch adjusted to prevent the A. Worksite traffic controls and placement of warning signs
chain drive from engaging at idling speed. 3425(a)(7) must conform to the requirements of the “California Manual
on Uniform Traffic Control Devices for Streets and Highways,
3. Chain saws must be started on the ground or where it January 13, 2012” published by the State Department of
is otherwise firmly supported. 3425(a)(2) Transportation. Additional means of traffic control, such as
4. A chain saw shall not be running when it is being continuous patrol, detours, barricades, or other techniques for
carried up into a tree. 3425(a)(5) the safety of employees may be employed. 1598(a)
5. Chain saws weighing more than fifteen pounds used in B. Specifications for the size and design of signs, lights, and
trees must be supported by a separate line or tool devices used for traffic control shall be as described in the
lanyard, except when working from an aerial-lift device “Manual,” pursuant to the provisions of California Vehicle Code
or during topping or removing operations where no section 21400, which is incorporated by this reference. 1598(b)
supported limb is available. 3425(a)(6) C. Employees (on foot), such as grade-checkers, surveyors, and
N. Pneumatic tools are regulated as follows: others exposed to the hazard of vehicular traffic, shall wear high
visibility safety apparel in accordance with the requirements of
1. Safety clips are required on pneumatic tools to prevent dies 1598, 1599, and 1590.
from being accidentally expelled from the barrel. 3559(a)
Note: The warning garments such as vests, jackets, or shirts
2. Pneumatic nailers and staplers must have a safety device shall be manufactured in accordance with the requirements
that prevents the tool from operating when the muzzle is of the ANSI/ISEA 107-2004, High Visibility Safety Apparel and
not in contact with the work surface. 1704(b) Headwear. 1598(c)
Exception: Light-Duty Nailers and Staplers D. Flaggers (see Flaggers section in this guide) are required
when the controls cited above are inadequate. 1599(a)
3. Pneumatic nailers and staplers must be disconnected from
the air supply at the tool when performing any maintenance Note: The use of one flagger under specified circumstances is
or repair on the tool, or when clearing a jam. 1704(c) also permitted. 1599(a)
4. The air hose of pneumatic nailers and staplers must be E. The employer shall select the proper type (class) of high
secured at roof level to provide ample but not excessive visibility safety apparel for a given occupational activity by
amounts of hose when an operator works on roofs sloped consulting the Manual, apparel manufacturer, ANSI/ISEA
steeper than 7:12. 1704(d) 107-2004, Appendix B or the American Traffic Safety Services
5. All pneumatic hoses exceeding 1/2-inch inside diameter Association (ATSSA). 1599(f)
shall have a safety device at the source of supply or branch
line to reduce pressure in case of hose failure. 1704(e)
6. Jackhammer operators must wear personal protective Training
equipment when required (see Personal Protective Each year, serious and fatal injuries are caused by ineffective and
Equipment section in this guide), including foot protection inadequate training of employees. Employees who are newly
as per 3385. Jackhammer operators must also use hearing hired, given new job duties, or who are using tools and equipment
protection when noise levels exceed allowable exposure
levels as per 5096(a). that they are unfamiliar with have a greater risk of being injured.
A. Effective Training

142 Cal/OSHA Pocket Guide for the Construction Industry | June 2019 Cal/OSHA Pocket Guide for the Construction Industry | June 2019 143