Document ykbdKb7wVzd01L1rgLZe3yErd

QUALIFIED OPERATOR OF POWDER-ACTUATED TOOLS Make(s) Model(s) This certifies that (NAME OF OPERATOR) Card NoSoc Sec No Has received the prescribed training in the operation of Powder actuated tools manufactured by (NAME OF MANUFACTURER) Trained and Issued by (SIGNATURE OF AUTHORIZED INSTRUCTOR) I have received Instruction in the sate operation and maintenance of powder actuated fastening tools of the makes and models specified and agree to conform to all rules and regulations governing their use Failure to comply shall be cause for immediate revocation of this card (SIGNATURE) (DATE) Fic 35-28 --Wallet card for qualified powder-actuated tool oper ators are available from tool manufacturers List of instructors should be maintained by each manufacturer Bated on American national Standard AID 3-1972 metal, pre-cast or pre-stressed concrete, ma sonry block, brick, stone, and wood surfaces, tightening nvets, and punching holes Cased (cartridge) or uncased (pellet) power loads provide the energy and are ignited by means of a conventional percussion primer The hazards encountered in the use of these tools are similar to those of a firearm The handling, storing, and control of explosive power loads present additional hazards Therefore, instructions for the use, handling, and storage of both tools and power loads should be just as rigid as those governing blasting caps and firearms Specific hazards are accidental discharge, ricochets, ignition of explosive or combustible atmospheres, projectiles penetrating the work, and flying dirt, scale, and other particles Tools are divided into two types A directacting tool is one in which the expanding gases of the power load acts directly on the fastener to be driven An indirect-acting tool has the expanding gases of the power load acting on a captive piston, which in turn drives the fastener The two types are divided into three classes --low, medium, and high velocity of the light est fastener driven by the strongest available commercial power load that will properly chamber in the tool In case of misfire, the operator should hold the tool in operating position for at least 30 seconds He should try to fire the tool a second time If it still misfires, he must hold the tool in operating position for another 30 seconds, then follow the manufacturer's in structions to remove the load Powder-actuated tools can be used safely if special training and proper supervision are provided for the operator Manufacturers of the tools will aid m this training Only trained and properly qualified personnel hold ing a "qualified operator's card," Fig 35-28, should be permitted to operate or handle the tools Qualification requirements for both in structor and operator are given m ANSI A10 3, Safety Requirements for Powder Actu ated Fastening Systems" Power-assisted, hammer-dnven tools are used for the same purposes as powder-actu ated tools and generally the same precautions should be followed (Fig. 35-29) 1003