437-002-0266 Additional Oregon Rules for Guarding Portable Powered Tools (1) Lower Guard. In addition to the provisions in 1910. 243(a)(1)(i), the lower guard shall be equipped with a lug or lever, remote from the blade teeth, that will permit the operator to safely shift the guard for starting unusual cuts. (2) Power Chain Saws: (a) In addition to the provisions of 1910.243(a) (2)(i), all power chain saws shall meet all applicable requirements of the ANSI B175.1-1985, Safety Code for Power Chain Saws; (b) Power saws shall be inspected daily when in use and kept in good repair at all times. Saws with cracked or loose handle bars or defective vital parts shall not be used; (c) Power chain saw engines shall be stopped while being fueled; (d) Power chain saws shall have an operable chain brake if originally designed and equipped with a chain brake; (e) Chain brakes, and other manufacturer’s safety features shall remain operational at all times. (3) Pneumatic-Powered Tools: (a) A shut-off valve shall be installed at the manifold or permanent pipe outlet of the compressed air supply; (b) Workers shall not couple or uncouple hose without first shutting off the compressed air supply except when using couplers which are equipped with check valves which automatically shut off the compressed air supply; (c) Workers shall remain in the clear when turning on air supply at a valve; (d) Driving pistons in pneumatic tools shall be constructed so that they cannot fly out of the tool; (e) Pneumatic fastener-driving tools and other power-driven fastener tools, except as allowed in subsection (f) of this section, shall be equipped with a safety device to prevent ejection of nails or staples when the tool is not in firm contact with the work; (f) Power-driven fastener-driving tools may be used without the safety device only when using staples with a diameter of .0475 inch (18 gauge A.W.G.) or less and the tool operator and all workers within 15 feet are wearing suitable eye protection; (g) The provisions of subsection (f) of this section do not apply to office stapling machines; (h) Oxygen or combustible gases shall not be used to drive pneumatic tools; (i) The exhaust from pneumatic power tools shall be deflected away from the operator. (4) Internal Combustion Engine-Driven Tools: (a) Internal combustion engine-driven tools shall be equipped with a positive on and off ignition switch that will remain in either position; (b) Internal combustion engine-driven tools shall be equipped with effective means to control power except those which are designed to operate at constant speed. Throttle controls shall return the engine to idling speed when released; (c) Internal combustion engine-driven tools shall be equipped with a self-rewinding starting device, or be designed to furnish equivalent safety; (d) Exhaust ports on internal combustion engine-driven tools shall be equipped with mufflers and shall be constructed and maintained to deflect exhaust fumes away from the operator when the tool is being used in its normal starting position; (e) Internal combustion engine-driven tools shall be stopped while being fueled; (f) Sling-carried tools which are powered by attached portable internal combustion engines shall be capable of quick removal; (g) The fuel system of sling-carried tools shall be inspected before each use, and any defect shall be repaired immediately. Statutory/Other Authority: ORS 654.025(2) & 656.726(3) Statutes/Other Implemented: ORS 654.001 - 654.295 History: OSHA 10-1993, f. 7-29-93, cert. ef. 9-15-93 WCD 23-1984, f. 12-28-84, ef. 1-1-85 WCB 1-1974, f. 1-16-74, ef. 2-15-74