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Back To Craftsman Air Driven Tool       Model: 875.191192 or 875191192 Craftsman Pneumatic Air Hammer
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Owner's Manual Pneumatic AIR HAMMER Model No . 875.191192 WARNING : Before operating toot , read this manual and follow all Safety Recommendations and Operating Instructions . , Safety Warranty Features & Operation t Maintenance • Espafiol Distributed by Sears , Roebuck and Co . , Hoffman Estates , IL 60179 WWW , _ ears . com
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FULL ONEYEARWARRNtTY ON Reed Operating tInstructionsh CRAFTSMANAIR - DRlVETOOLS Please become familiar wi all the instructionsaod If this Craftsman tool fails to give complete satisfaction warningsbefore operating any pneumatictoot . withinone year from the date of purchase , RETURN IT ALwaysWear Approved Eye Protection TO THE NEAREST SEARS STORE INTHE UNITED Impact resistant eye protectionshould meet or _ xceed STATES , and Sears will repairor replaceit free of charge . the standardsset forth in ANSI Z87 . 1 , Oceupationa _ and If this Craftsman tool is used for commercialor rental Educational Eye and Face Protection . Look tor marking purposes , this warranty applies for only 90 days from the 7 _ 87 . ton your eye protection to ensure that itis an date of purchase . Th _ swarranty gives you specificlegal approved style . Hearing Protection is Recommended rights , and you may also have otherrightswhich vary from state to state . Hearing protectionshould be used when the noise tevel exposure equals or exceeds an 8 hour time - . weighted Distributed by Sears , Roebuck and Co . , Dept . 817WA , average sound level of 85dBA . Process noise , reflective Hoffmen EstateS , IL 60179 . surfaces , other tools being operated nearby , all add to the noise level in a given work area . if you are unable to determine your noise level exposure , we recommend the use of hearing protection . The Craftsman Model 875.191192 Air Hammer is Avoid ProlongedERx _ ure to Vibration Pneumatic tools can vibrate during use . Prolonged designed for chipping , trimming , riveting , cutting , exposure to vibration or very repetitivehand and arm piercing and peening . increments can cause injury . Discontinue the use of any tool if you experience tingling , numbness , discomfort or Features pain in your hands or arms . You should consulltyour Uses standard . 401 inch shank chisels . pt _ ysicianbefore resuminguse of tool . • Alloysteel barrel and he _ . t - treatedpistonfor tong life . g0 PSI Maximum • Produces4 , 500 powerful blows per minute with a This tool ( sdesignedto operate at an air pressure of 90 1.7 " stroke . pounds per square inch gauge pressure ( 90 PSI ) maximum , at the too ! . Use of h _ gherair pres . _ Jracan , and Specifications may cause injury . AJso , the use of higher air pressure StrokeLength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 . . , . 7 " places the internalcomponents under loads and IBore Diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 . . / 4 " stresses they were not designed for , causing premature Blows per minute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4,500 BPM tool failure . Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 . . . . 5 Ibs . NOTE : THEAIR SUPPLY SHOULD BE CLEAN , DRY AND Overall length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 . . . . 1 " PREFERABLY LUBRICATED . FOR BEST RESULTS Average air consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 CFM DRAINTHE MOISTURE FROM YOUR COMPRESSOR Recommended hose size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 / 8 " I . D , DAILY . Air inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 . . / . 4 " NPT Use May Produce Flying Objects Maximum Air Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 PSI Care should be taken when using any percussiontool . Keep the point of the chisel in contact with the work surface . Inspect all aeoessories carefully for damage before use . Chisels and chisel retainers should be kept in good condition and replaced as needed . Discard any ' Pre - Operation accessory that has been damaged to prevent anyone Before the tool is connected to the air supply , clear the air from using it . hose of accumulateddust and moisture by running air freely throughthe air hose for 5 - 10 seconds . iBefores removinga tootfor service , make sure the air line shut - AWARNINGJ off at the compressor . This willpreventthe too ! from operatingif the throttle is accidenttyengaged . Some dust created by power sanding , sawing , grinding , or = llmgana other construct ] u = = uuLlviLiu , = _ u _ ' , tzdns ¢ hemi cals knownto cause cancer , birth defectsor other Installation ( See figure 1 ) reproductiveharm , Some examples of these chemicals This tool is designed to operate at 90 psi . Lower pres - are : sure ( below 90 psi ) will reduce performance of the toolor - Lead from lead based paint while higher air pressure { over 90 psi ) rakes the dperf mance of the tool beyond itsrated capanityand coul • crysta ! linesilica from bricks ar _ l cement cause sedous damage to tool and user . and other masonry products , and arsenic and chromium from chemically - Always use clean dry air . Excessive moistureand dirt wilf treated lumber . greatlyreduce the life of any air motor . We recommend Your riskfrom those exposuresvaries , depending on how the installationof an in - line fitter - regulator - lubricator as close to the tool as possible . oftenyou do thistype of work . To reduce your exposure tork these chemicals : work in a wet ! ventilated area , and wo A 3 / 8 " air hose is requiredup to a lengthof 8 ft . If morehe with approved safety equipment , such as dust masks that length is requireda 1 ] 2 " air hose shouldbe used at t are specificallydesigned to filter out microscopic _ ar - compressor . Attadna 3 / 8 " whip hose for the remainingthe ticles . 4 - 8 It . for flexibility . Be sure all hoses and fittings oarel . correctsize and tightlysecured before using air to
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- . u £ 1ranch line = 2 times Tool inLet / hose size I StoplveI ' 1 Va Auto Drair Valve r bAutoOrain _ Air Compressor Valve Figure 1 All " Hose Hook Up USING QUICK CHANGE RETAINER Lubdcat | on An in - linefilter - rsoutator - lub _ cato ( rfig 1 ) is recommended Disconnectair supply and remove all accesso as it increesestool life and keeps the tool in sustained ries . operation . The in - linelubricator shouldbe reguiarly checkedand filled withair tool oil . Props € adjustmentof Threa _ quick change chisel retainer , onto end of the in - linelubricatoris performed by placing a sheetof barrel . paper next to the tools exhaust ports _ d holdingthe While pushing end of spring to side of 1the tool , throttleopen approximately 30 seconds : The hJbncatoris insert a standard . 401 " taper shank ohise ! into pmpedy set when a lightstain of oil collectson the paper . Excessive amounts of oil shouldbe avoided , barre ! and allow spring tension to rest against chiKsl . Make sltr _ nhi , _ ailsh _ , tw ¢ ebn _ rr _ _ lnc ! retainingpartofswing . In the event that it becomes necessaryto storeThetool for an extended periodof t _ me ( overnight , weekend , etc . ) , it 4 Remove chisel by pushingspring to sideof tool shouldreceive a generous amount el lubricationthrough and pull chisetout of barrel . the air intet ( fig 2 ) . The toolshouldbe run for approximately30 secondsto ensure elf has been evenly 5 Always hotdchisel to work surface before disVibutedthroughoutthe tool . The tool shouldbe stored operatingtool , in a clean and dry environment , Recommended lubdcents : Use air tooloil or any other high grade turbine oil containing moisture absorbent , rust inhibitors , metal wettingagents anc _ an EP ( extreme pressure ) additive . ( See Fig . 2 for loc _ ttiorv'airinlet ) . Never operate hemmer without a 1 & CAUTION _ isel i , , tail _ , , + + , l = + = adgai . , t the work surface . Doing so may result in personal injury or damage to the tool . Figure 2 - Tool Diagram
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Sears CRAFTSMAN Model 875.191192 Pneumatic AIR HAMMER Exploded View and Parts List 12 13 \ 4 Re1 . Ref . Pad No . Description Q1y Part No . Description 11 1 9106711 H , Ou _ ing 1 9106721 Trigger 1 2 91 O6712 Spring Pin 1 12 9106722 Rear End Ptate 1 3 9106713 Set Pin t 13 Valve 910672 " _ t 4 9106714 Vrzve 1 t4 9 _ o _ 724 Set Pin - A 1 15 5 91067t 5 O - Ring 2 910B725 Set Pin - B 1 16 8 9106716 Air " Regulator 1 910 _ 726 Front Enci Plate 1 7 9106717 Air inlet 1 17 9106727 Piston 1 8 9106718 Valve Sprin 9 t 16 910672B Cylinder 1 9 9108719 ThroUle Valve 1 19 5120 1 Retainer Spring 10 9106720 Valve Stem 1 20 9106729 1 Plastic Grip
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Troubleshootin . . . . . 1 . Flush the toot with air tool oil or gum Toolruns siOw ( yorwill not operate 1 . Grit or gum intoo ! solvent , 2 . No oi _ in toot 2 . Lubricatethe tool according to the lubrication instructionsin this manual 3 . Low air pressure 3 . a . Adjust the regulator on thetool to the maxi - mum setting b . Adjustthe compressor regulatorto . tool maximum of 90 psi , 4 . Air hose leaks 4 . Tighten and sea ] hose fittings if leaks are found use teflon tape ; 5 - Pressure drops 5 . a . Be sure the hose is the proper size . Long hoses ortools using | erge volumes of air may require _ bose with an I . D . of 1 / 2 " or larger depending on the total length of the hose b . Do not use a multiple number of hoses connectedtogether w _ thquick connect fittings . This causes additional pressure drops and reduces the tool power . Direstty connectthe hoses together 6 . Worn rotorblade in motor 6 . Replace rotor blade 7 , Worn ball bearingin motor 7 . Remove and inspectbearingfor rust , dirt and grit . Replace or clean and grease bearingwith bearing , grease Moisture blowing out of tool exahust 1 . Water in tank 1 . Drain tank . ( See air compressor manual ) . Oil tool end run untilno water is evident . Oil too ! again and run 1 - 2 seconds Impactsslowly or will not impact 1 . Lack of lubrication 1 . Lubricatethe air motor and the impact mechanism , ( See Lubricationsection of this manual ) 2 , Tool regulatorset in wrong 2 , Adjustthe regulator on the tool to the maximum position setting 3 . In - line regulator or 3 , Adjust regulators in the air system compressor regulator set too low Impacts rapidlybut 1 . Worn impact mechanism 1 . Replace worn impact mechanism components will not remove bolts Does not impact 1 . Broken impa _ mBc . hanism 1 . Rel01a ¢ , ebroken impact mechanism components
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For the repair or replacement parts you need delivered directly to your home Call 7 am - 7 pro , 7 days a week 1 - 800 - 366 - PART ( 1 - B00 - 366 - 7278 ) Para ordenar piezas con entrega a domiciUo - 1 - 800 - 659 - ' 7084 For the location of a Sears Parts and Repair Center in your area Call 24 hours a day , 7 days a week IIIIIII1 | | 1 - 800 - 488 - ! 222 For more information on purchasing a Sears Maintenance Agreement or to inquire about an existing Agreement Call 9 am - 5 pro , Monday - Saturday 1 - 800 - 827 - 6655 The model number of your air tool is Ilocated on the serial plate attached to the tool . , = 4R8 When requesting service or ordering parts , always give the following information : • Product Type * Pneumatic ; Tool • Model Number * Part Description Distributed by Sears , Roebuck and Co . , Hoffman Estates , IL 60179 USA
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