All fuel powered tools must be shut off while being refueled, serviced, or maintained.
Smoking, matches, open lights or similar ignition sources are prohibited in the vicinity of any refueling operation.
Any fuel powered tool that develops a leak in the fuel system must be taken out of service immediately and repaired or replaced before continuing the operation.
When fuel powered tools must be operated indoors or in confined areas, or near occupied underground pits, manholes, vaults, etc. proper ventilation of such confined spaces must be maintained so as not to allow a hazardous atmosphere to form.
Electric
All 110 volt power tools must either be approved double insulated or have a current assured grounding test I.D. (see Section 11.5). Those not meeting one of these requirements must be taken to the shop for testing or replacement before use.
Trailing cords of power tools are not to be used to lift or lower the tool.
Bench and floor mounted grinders must have safety guards and work rests. Work rests must be kept within 1/8 in. from the wheel at all times.
The use of any attachment wheel rated lower than the rated RPMs of the grinder is strictly prohibited.
Air Driven
Percussion type impact tools must have a safety clip or retainer to prevent the attachment from disengaging while in use.
Compressed air in excess of 30 psi shall not be used for cleaning purposes. (Exception: concrete form cleaning and similar processes being performed by trained personnel.)
All pressurized hose quick disconnect type (non-threaded) fittings, couplings, and connectors must have a safety mechanism providing a positive means to prevent accidental disconnect.
All hose lines greater than 1/2 in. diameter are to be equipped with a safety device at the source or branch line from the source to automatically reduce pressure in case of hose failure.
Hoses are not to be used for lifting and lowering air tools.
Power Actuated Tools
Only persons trained in the proper use of the particular power actuated tool are permitted to operate it.
The tool must never be pointed at another person whether it is empty or loaded.
The tool must only be loaded just prior to its use and never left unattended when loaded.
The tool must never be used near flammable or explosive materials or atmosphere.
Fasteners must never be driven into extremely hard or brittle materials, such as cast iron, glazed tile, face-hardened steel, glass block, face brick, etc.
Fasteners must never be driven into materials that might be easily penetrated unless suitably protected against the possibility of rear exit.
Grinders—Abrasive
Abrasive wheel bench or stand grinders must have safety guards strong enough to withstand bursting wheels. Adjust work rests on grinders to a clearance not to exceed 1/8 in. between rest and wheel surface. Inspect and ring test abrasive wheels before mounting. Always leave wheel in working condition for next user. Properly dress wheel before using and/or when finished. The RPM rating of the abrasive wheel must be in accordance with the RPM rating of the motor.
Grinders—Portable (Air, Electric or Fuel)
Portable grinders used with any wheel attachment must have guards, hoods, and/or safety flanges in place except when wheels less than 2 in. O.D. are used or when the wheel is entirely within the work being processed.
The use of any attachment wheel rated lower than the rated RPMs of the grinder is strictly prohibited.
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