![]() ![]() Push barrel assembly (B) into receiver (C). Remove receiver (C), firing pin (K), firing pin spring (L), sheet metal nut (M), trigger link (N), link pin (O), sear (P), and trigger (R).ģ. Separate housing halves by removing the seven housing screws (I & J).Ģ. NOTE: When fastening in steel be sure the point goes thru the steel.ġ. Recommended applications are between 3/16-3/8" steel. ![]() In steel, the point of the power fastener must penetrate completely through for highest holding power.If the power fastener does not penetrate, the spring action of the steel pushes back on the point and tends to force the power fastener out. To the reaction when a power fastener penetrates steel. The steel pushes back on the shank of the power fastener.ĭrop a marble into water the water parts, the marble continues down, thewaterclosesback.Thisissimilar Holding power in steel depends on the elasticity of the steel. NOTE:Concreteneedstocurefor28daysbeforemaximum fastening holding power will be achieved. NEVER have the power fastener point protrude thru the concrete. Make sure the concrete is at least three timesasthickastheintendedpowerfastenerpenetration. Maximum holding power is achieved when the depth of penetration produces a bond on the power fastener equal to the strength of the concrete.Īs a general rule, penetration should be approximately 1" to 1 1/ 4" into the base concrete. Thepowerfastenerdisplacestheconcretewhichtriestoreturntoitsoriginal form causing a squeezing effect. The compression bond of the concrete to the power fastener accounts for the majority of the holding power. If the point becomes blunt,thematerialistoohard.Ifthematerialfractures,cracks or shatters, the material is too brittle.Test fastenings can be made if the material shows a clear power fastener impressionandthepowerfastenerpointisnotblunted.Alwaysstart with the lowest power load (Gray-Level 1) and proceeding with the order shown in the lower right-hand figure above. NEVERGUESS.Testthe basematerialbyusingtheCenterPunchTest.TheCenterPunchTest is performed by using a hammer to test drive the particular power fastener to be used into the material.If the point penetrates easily, the material is too soft. ALWAYS know the thickness and type of base material into whichyouare fastening. NEVER drink alcoholic beveragesortakemedicationswhichimpairyourvision,balance, or judgement before using a powder actuated tool.ġ. An operator taking medication should take extra precautions while handling the tool. DO NOT use the tool again until it has been properly repaired.ħ. If the tool does not work properly, remove from service and tag DEFECTIVE. ALWAYS inspect to make sure the tool is working properly. NEVER load a tool unless it is going to be used.Ģ. Before starting work, check that the tool is unloaded and the muzzle is clear. ALWAYS handle the tool as if it were loaded. For certification procedures, call: DESA Specialty Products™ Technical Services Department,ġ. NOTE: The labor regulations of many states require that the operator of this tool on a job site be thoroughly trained and certified for competence prior to operating this tool. Qualification is obtained through a thorough understanding of the Safety Precautions and operating instructions as defined in this operating manual. WARNING:This tool is designed only for use by qualified operators. Read carefully and become familiar before operating to avoid serious injury.We expressly disclaim any liability for any injury to persons or damage to property which result from your failure to take the precautions contained in this manual. The following pages contain detailed warnings, cautions, and rules of safe operation. Remington ® Power Fasteners are manufactured from special steel and heat treated to produce a very hard, yet ductile, fastener. 22caliber,TypeA,neck-downcrimpedpower loads and Remington ® Power Fasteners which are no longer than 2 1/ 2" or power washer fasteners no longer than 3". The Remington ® Powerdriver™ Model 490 is designed for use withRemington ®. Parts List.Īccessories.īarrel Replacement. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |