Remington 491 manual

482-1 REMINGT ON ® Powerdriver Model 491 POWDER ACTUATED TOOL MANUFACTURERS´ INSTITUTE INC. ™ G 029 ® A N I N D E P E N D E N T L A B O R A T O R Y T E S T I N G F O R P U B L I C S A F E T Y G 028 Read this manual and all labels carefully before operating your powder actuated tool. This manual should always accompany the tool and be transferr[...]

2 099494 INDEX Warning: Safety Precautions ............................................................. 3-11 Why A Fastener Holds ......................................................................... 12 Selecting Fasteners and Power Loads ................................................ 13 Operation ............................................[...]

3 099494 W arning: Safety Precautions IMPORTANT: Read these operating instructions carefully and com- pletely before trying to operate or service this tool. Improper use of this tool can cause serious injury or death from firing fastener into body or from flying debris. We expressly disclaim any liability for any injury to persons or damage to prop[...]

4 099494 5. Make sure the work area is clean from loose material and debris. 482-12 Safety Precautions POWDER ACTUATED TOOLS IN USE WARNING 482-10 ! 4. Always clear the work area on all sides and post appropriate warning signs on job sites. 1. Never place your hand over the muzzle. Accidental discharge can cause serious injury. HANDLING THE TOOL 2.[...]

5 099494 Safety Precautions 4 . Never carry or pass a loaded powder actuated tool. Never point a powder actuated tool at anyone. 3. Store powder actuated tool and power load strips in a locked container. Unload tool before storing. Keep power loads of different power levels in separate containers. 5. If the tool is dropped, inspect for damage and r[...]

6 099494 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 TOO HARD Point flattens 482-29 ? ? ? ? 482-26 TOO BRITTLE Surfac[...]

7 099494 Safety Precautions 3. Never make fastenings in spalled or cracked areas. 2 . Never attempt to drive power fasteners into very hard or brittle materials including, 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. TILE BRICK 482-33 4. N[...]

8 099494 TOO THIN WELD 482-40 3/16" MIN 1/2" 1" 482-41 Safety Precautions 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. 3" 3" 3" 482-39 6. Do not drive power fasteners into concrete[...]

9 099494 Safety Precautions 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 [...]

10 099494 Safety Precautions 3. Never use power loads in firearms. 1 2 3 4 5 6 7 8 9 10 11 12 1 22 L E K C I N B R A S S 482-54 C A L I B E R NOTE: Failure to start with the lowest power level can result in overdrive condition and will result in damage to tool (See page 13). 5. A color blind person must take extra precautions to prevent the chance [...]

11 099494 Safety Precautions 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 Troubleshooting Guide, page 23). 9. [...]

12 099494 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 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 penetrat[...]

13 099494 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 fastener that will actually penetrate the con- crete. The concrete must be three times as thick as the intended fastener penetration. In most cases, p[...]

14 099494 Operation 1. Grasp barrel assembly and slide forward rapidly until it stops. Push barrel assembly back into tool to the closed position. This sets piston into firing position. 3. Select the proper power level of power load strips. Always insert powder strip loads through bottom of handle. Push power load strip in until even with bottom of[...]

15 099494 Operation 5. Squeeze trigger to set power fastener. Be sure to keep pressure on tool during this operation. 6. Grasp base plate and slide barrel forward rapidly until it stops. Push base plate back into liner to the closed position. This advances the power load strip and resets the piston for the next fastening. WARNING: Do not depress mu[...]

16 099494 Parts List Key Part No. No. Description Qty. 1 301002 Body 1 2 301034 Trigger Pin 1 3 301529 Advance Holder 1 4 301530 Advance Bar 1 5 301531 Advance Bar Spring 1 6 301533 Trigger 1 7 301015 Screw 2 8 301100 Liner 1 9 301014 Annular Spring 1 10 301013 Ball Bearing 1 11 301012 Stop 1 12 301016 Push Pin 1 13 301046 Ball Bearing 2 14 301047 [...]

17 099494 1 2 3 19 5 6 7 8 9 10 11 12 13 14 15 17 16 18 20 21 22 23 24 25 26 27 28 32 29 31 30 4 Cleaning and Maintenance 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. Apply good quality penetrating lubricant[...]

18 099494 T ool Disassembly 2. Using thumb, push stop towards rear of tool and remove (see Figure 2). Figure 2 - Removing Stop Stop Figure 3 - Separating Base Plate From Piston Sleeve Piston Sleeve Base Plate 3. Pull barrel assembly out of liner in tool body. 4. Remove shear clip from barrel assembly (see item 20, page 17, for shear clip location).[...]

19 099494 6. Remove piston assembly from piston sleeve (see Figure 4). 7. Tilt rear of base plate down. Guide will slide out. 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. REMOVING ROCK ARM Rock arm assembly is located on rubber pa[...]

20 099494 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. 3. Use needle-nosed pliers to grasp nut at rear of firing pin assembly. Pull firing pin assembly and sear assembly from t[...]

21 099494 T ool Assembly ATTACHING LINER TO TOOL BODY 1. Replace two ball bearings and springs into end of liner (see Figure 9, page 20). 2. Slide tool body onto liner. 3. Insert two screws into front of tool body just under liner. Tighten screws firmly. ATTACHING TRIGGER ASSEMBLY TO TOOL BODY 1. Insert trigger assembly into tool body at rear of bo[...]

22 099494 ATTACHING RUBBER PAD 1. Slip top of rubber pad over plug at rear of tool body (see Figure 5, page 19). 2. Press rubber pad into place. 3. Tighten screw on back of rubber pad with 5mm Allen wrench. ASSEMBLING BARREL ASSEMBLY 1. Insert guide into rear of base plate (see Figure 11). Figure 13 - Sliding Base Plate Onto Piston Sleeve Base Plat[...]

23 099494 T roubleshooting Guide Piston hangs out of muzzle. Overdriven fastener. Piston jammed. Power load strip will not advance. Reduction or loss of power. Tool does not completely depress. Tool does not fire. Tool does not fire. Opening and closing of barrel or pushing down on tool, etc. is not smooth but is rough or binds. PROBLEM Tool overdr[...]

24 099494 Fasteners 482-80 Wood or Non-Metals To Concrete 482-79 Wood or Non-Metals To Steel 482-78 SP FASTENERS Fasten wood or nonmetals to concrete or steel. Application Chart 482-81a Two by fours Furring strips Electrical junction boxes Conduit clips Shelf brackets 1/4" Plywood or pegboard For fastening this to this Concrete Cement block St[...]

25 099494 482-90 Application Chart IMPORTANT * Use power fastener with penetration control disc, part number 015549. • Recommended for use with Remington power load strips and power fasteners. • Only use power fasteners up to 2 1/2" long with standard guide. Power fasteners 3" long can be used with optional guide, part number 301110. [...]

26 099494 Parts Central Contact authorized dealers of this product. If they can’t supply original replace- ment part(s), either contact your nearest Parts Central (see below) or call DESA International’s Parts Department at 1-800-972-7879. In Canada call 1-905-826-8010. When calling DESA International, have ready • model number of your tool ?[...]

27 099494 Maintenance Log Date Maintenance Performed[...]

099494-01 REV. C 7/95 Limited W arranty Agreement DESA International warrants the Remington Powerdriver Model 491 against defects in materials and workmanship for a period of one (1) year from the date of purchase. If within one (1) year from the purchase date this Powder Actuated Tool fails due to a defect in material or workmanship, DESA will rep[...]