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®
Model 493
Model 498
™
POWDER ACTUATED TOOL
MANUFACTURERS´ INSTITUTE INC.
Operating
Instructions
IMPORTANT:
Read all instructions and warnings found in this manual and on power
load packaging before operating your powder actuated tool. This manual
should always accompany the tool and be transferred with it upon change
of ownership.
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Index Warning: Safety Precautions ............................................................................3-11 Why A Power Fastener Holds .............................................................................. 12 Selecting Power Fasteners and Power Loads ..................................................... 13 Operation ........................................................................................................14-16 Maintenance .............................................
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DEFECTIVE Warning: Safety Precautions The following pages contain detailed warnings, cautions, and rules of safe opera- tion. 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. WARNING: This tool is designed only for use by qualified operators. Quali- fication is obtained through a thorough understanding o
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Safety Precautions WARNING POWDER ACTUATED TOOLS ! IN USE 4. ALWAYS clear the work area on all sides and post appropriate warning signs on job sites. 5. ALWAYS make sure the work area is clean from loose material and debris. HANDLING THE TOOL 1. NEVER place your hand over the muzzle. Accidental discharge can cause seri- ous injury. 2. NEVER place your finger on the trigger until the tool’s muzzle is against the work surface. 114915 4
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POWE POWER LOAD LOADS Safety Precautions 3. ALWAYS store UNLOADED powder actuated tool and power load strips in a locked container. Keep power loads of different power levels in separate containers. 4. NEVER carry or pass a loaded powder actuated tool. NEVER point a powder actuated tool at anyone. 5. If the tool is dropped, inspect for damage and repair it before continuing to work. NEVER use a damaged tool. 6. ALWAYS take precaution to maintain your balance while operating a powder actuated
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Safety Precautions ? ? ? 7. An operator taking medication should take extra precautions while handling the tool. NEVER drink alcoholic beverages or take medications which impair your vision, balance, or judgement before using a powder actuated tool. KNOW YOUR FASTENING BASE MATERIAL ? Sinks in ? with ? average hammer ? blow CENTER TOO SOFT PUNCH TEST Start Point GREEN flattens POWER Surface LEVEL 3 shatters YELLOW TOO BRITTLE POWER LEVEL 4 RED TOO HARD POWER LEVEL 5 1. ALWAYS know the thick
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Safety Precautions CAST IRON GLASS TILE BRICK 2. NEVER attempt to drive power fasteners into very hard or brittle materials in- cluding, but not limited to, cast iron, glass, tile, stone, brick, or hardened steel. Materials of this type tend to shatter and create hazard from flying particles. 3. NEVER make fastenings in spalled or cracked areas. 4. NEVER drive power fasteners into thin or easily penetrated materials unless it is backed by concrete or steel. When in doubt, such as when base mate
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Safety Precautions 3" 3" 3" 3" 1X 3X 6. DO NOT drive power fasteners into concrete less than three times as thick as the intended fastener penetration, within 3" of the edge, within 3" of another power fastener, or within 3" of a failed power fastener. WELD 1" 1/2" 3/16" MIN TOO THIN 7. DO NOT drive power fasteners into steel base material less then 3/16" thick, within 2" of a weld, within 1/2" of the edge, or within 1" of another power fastener. NO YES 8. When fastening into masonry walls, a
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POWER LOADS POWER LOADS Safety Precautions 30 WATER 2. Should the tool fail to fire, hold the muzzle firmly against the work surface for 30 seconds. Release the trigger and remove pressure on the tool while holding the muzzle against the work surface. Again press the tool firmly against the work surface and pull the trigger. If the tool still fails to fire, hold the tool firmly against the work surface for another 30 seconds before advancing the power load strip. Use remaining loads in strip. Di
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L E K C I N R E B Safety Precautions 22 27 Start NOTE: GREEN Failure to start with POWER 6 7 LEVEL 3 the lowest power level 5 8 4 9 can result in overdrive YELLOW 1 POWER 3 10 condition and will re- LEVEL 4 2 11 1 12 sult in damage to tool RED POWER (See page 13). LEVEL 5 ® 2. Remington power load strips are available in three power levels – green (level 3), yellow (level 4), and red (level 5). Green is lowest power level, red is highest power level. ALWAYS start with the lowest power le
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Safety Precautions 6. Power fasteners are a permanently installed fixture. An act of demolition is required for their removal. Appropriate safety precautions must be taken. Head Shank Plastic Flute ® 7. NEVER use common nails or other materials as fasteners. Remington Power Fasteners are manufactured from special steel and heat treated to produce a very hard, yet ductile, fastener. 8. NEVER pry a power load out of the strip. Prying can discharge the load causing serious injury (See Troublesho
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Why A Power Fastener Holds WHY A POWER FASTENER HOLDS IN CONCRETE The compression bond of the concrete to the power fastener accounts for the majority of the holding power. The power fastener displaces the concrete which tries to return to its original form causing a squeezing effect. Maximum holding power is achieved when the depth of penetration produces a bond on the power fastener equal to the strength of the concrete. As a general rule, 1 penetration should be approximately 1" to 1 /4
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Selecting Power Fasteners and Power Loads FASTENING INTO CONCRETE The proper power fastener length can be determined by adding the thickness of the material to be fastened and the amount of power fastener that will actually penetrate the concrete. The concrete must be three times as thick as the intended power fastener penetration. In most 1 4 cases, penetration should be approximately 1" to 1 / " into the base concrete material. Wood or Non-Metals FASTENING INTO STEEL To Concrete The pr
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Operation 1. Grasp barrel assembly and slide forward rapidly until it stops. Push barrel assem- bly back into tool to the closed position. This sets piston into firing position. 2. Insert power fastener into muzzle of tool, head end first. Push the power fastener until point is even with end of tool. NOTE: Failure to start with the lowest power level can result in overdrive condition and will re- sult in damage to tool (See page 13). 3. Select the proper power level of power load strips. ALW
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Operation 5. Squeeze trigger to set power fastener. Be sure to keep pressure on tool during this operation. 6. Grasp muzzle cap and slide barrel forward rapidly until it stops. Push barrel assembly back into tool to the closed position. This advances the power load strip and resets the piston for the next fastening. WARNING: DO NOT depress barrel assembly past the closed position when loading new power fastener. Live power load is in firing position. 30 WATER 7. Should the tool fail to fire,
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Operation PISTON OVERDRIVE If the tool does not open after firing and the piston is 1/2 inch or more out of the muzzle: 1. Strike muzzle end of tool against hard surface to force piston back into muzzle. 2. Advance power load strip and reset piston (See step 6 of Operation). OVERDRIVE Maintenance IMPORTANT: Clean tool after each days use. Disassemble and clean the barrel assembly with the wire brush provided with tool. Notice: DO NOT attempt to clean power load strip channel with wire brush. A
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Parts List Key Part No. No. Description 493 498 18 305009 Base Plate 1 306009 Base Plate 1 19 301011 Shear Clip 1 1 20 301300 Sear Holder 1 1 21 301023 Sear 1 1 22 301024 Sear Spring 1 1 23 301904 Firing Pin Assembly 1 1 24 301026 Sear Holder Spring 1 1 25 301025 Firing Pin Spring 1 1 26 301028 Plug 1 1 27 301601 Rubber Pad 1 1 28 301844 Rocker Arm 1 1 29 301840 Spring 1 1 30 301843 Spring 1 1 31 301845 Rocker Arm Pin 1 1 ACCESSORIES Part No. Description 301053 Spall Shield - Model 493 1 30
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Tool Disassembly and Assembly WARNING: ALWAYS unload a powder actuated tool before disassembling, replacing barrel, cleaning, or assembling. TOOL DISASSEMBLY A. REMOVING BARREL ASSEMBLY 1. Using screwdriver, lift end of annular spring and rotate spring until stop is un- covered (see Figure 1). Annular Spring Stop Figure 1 - Rotating Annular Spring to Uncover Stop 2. Push stop towards rear of tool and remove (see Figure 2). Stop Stop Figure 2 - Removing Stop 3. Pull barrel assembly out of liner
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Tool Disassembly and Assembly 6. Remove piston assembly from piston sleeve (see Figure 4). Piston Sleeve Piston Figure 4 - Removing Piston From Piston Sleeve 7. Tilt rear of base plate down. Guide will slide out. B. REMOVING RUBBER PAD 1. Loosen screw on back of rubber pad with 5mm Allen wrench. 2. Detach rubber pad from top of tool first, then pull entire rubber pad from tool. Rubber Pad 5mm Allen Wrench Figure 5 - Removing Rubber Pad C. REMOVING ROCKER ARM Rocker arm assembly is located on rub
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Tool Disassembly and Assembly D. REMOVING FIRING PIN 1. Remove plug from end of tool. Do this by pressing plug in and turning it 90°. This will release the plug from the tool body. 2. Remove the two springs within the cylinder at rear of tool body. Springs Plug Firing Pin and Sear Assembly Figure 7 - Removing Plug and Springs to Access Firing Pin 3. Use needle-nosed pliers to grasp nut at rear of firing pin assembly. Pull firing pin assembly and sear assembly from tool body. 4. Remove push pin
