REMINGTON®

POWERHAMMERModel 476

OperatingInstructionsThe Remington Powerhammer is de-signed for use with Remington Powder 22caliber, Type A crimped loads andRemington Power Fasteners which areno longer than 63.5mm (2 1/2”).Remington Power Fasteners are manu-factured from special steel and heattreated to produce a very hard, yet duc-tile, fastener.

CAUTION:Always use Remington 22 caliber Type Acrimped loads or loads manufactured tospecifications outlined in the P.A.T.M.I.“Technical Data Pertaining to PowderLoads (Boosters)”, latest revision. Use ofloads other than those conforming tothese specifications may cause load-ejection problems or damage the tool.

Read this manual and all labels carefullybefore operating your powder actuatedtool. This manual should always accom-pany the tool and be transferred with itupon change of ownership.

WARNING ICON G 001 WARNING: This tool is designedonly for use by qualified operators. Quali-fication is obtained through a thoroughunderstanding of the Safety Warningsand operating instructions as defined inthis operating manual.

2

WARNING:Safety Precautions

BEFORE USING

1. ALWAYS handle the tool as if itwere loaded. Before starting work,check that the tool is unloaded andthe muzzle is clear. NEVER load atool unless it is going to be used.

2. ALWAYS inspect to make sure thetool is working properly. If the tooldoes not work properly or is dam-aged remove from service and tagDEFECTIVE.

3. Operators and bystanders mustALWAYS wear goggles and earprotection that meet or exceed CEstandards.

4. ALWAYS clear the work area on allsides and post appropriate warningsigns on job sites.

The following pages contain detailedwarnings, cautions, and rules of safeoperation. Read carefully and becomefamiliar before operating to avoid seri-ous injury. We expressly disclaim anyliability for any injury to persons or dam-age to property which result from yourfailure to take the precautions containedin this manual.

3

Safety Precautions

DEFECTIVE

WARNINGPOWDERACTUATEDTOOLSIN USE!

G 018

G 018

4

Safety Precautions

HANDLING THE TOOL

1. NEVER place your hand over themuzzle. Accidental discharge cancause serious injury.

2. ALWAYS store UNLOADED pow-der actuated tool and loads in alocked container. Keep powderloads of different power levels inseparate containers.

3. NEVER carry or pass a loaded pow-der actuated tool. NEVER point apowder actuated tool at anyone.

4. ALWAYS take precautions to main-tain your balance while operating apowder actuated tool.

5. An operator taking medicationshould take extra precautions whilehandling the tool. NEVER drink al-coholic beverages or take medica-tions which impair your vision, bal-ance or judgement before using apowder actuated tool.

5

Safety Precautions

POWDERLOADS

POWDLOAD

G 018

G 018

G 018

G 018

G 018

6

3. NEVER make fastenings in spalledor cracked areas.

Safety Precautions

KNOW YOUR FASTENING BASEMATERIAL

1. ALWAYS know the thickness andtype of base material into which youare fastening. NEVER GUESS.Test the base material by using theCenter Punch Test. The CenterPunch Test is performed by using ahammer to test drive the particularfastener to be used into the mate-rial. If the point penetrates easily,the material is too soft. If the pointbecomes blunt, the material is toohard. If the material fractures,cracks or shatters, the material istoo brittle. Test fastenings shouldalways be made starting with thelowest power load (Gray-Level 1)and proceeding with the ordershown. Operators and bystandersmust ALWAYS wear goggles andear protection that meet or exceedCE standards.

2. NEVER attempt to drive fastenersinto very hard or brittle materialsincluding, but not limited to castiron, glass, tile, stone, brick, or hard-ened steel. Materials of this typetend to shatter and create hazardfrom flying particles.

7

Safety Precautions

??

??

CENTERPUNCH TEST

Sinks inwithaveragehammerblow

TOO SOFT TOO HARD

Pointflattens

Surfaceshatters

Start

3GREEN

2BROWN

4YELLOW

CASTIRON

GLASS TILE BRICK

1GRAY

TOO BRITTLE

G 018G 018

G 018

G 018 G 018

G 018

8

Safety Precautions4. NEVER drive fasteners into thin or

easily penetrated materials unlessit is backed by concrete or steel.When in doubt, such as when basematerial is concealed, conduct aCenter Punch Test. Check continu-ally to avoid fastening into unsuit-able material, especially in olderbuildings.

5. DO NOT fasten thru or within 13mm(1/2”) of predrilled or pre-punchedholes.

6. DO NOT drive fasteners into con-crete less than three times as thickas the intended fastener penetra-tion, within 76mm (3”) of the edge,within 76mm (3”) of another fas-tener or within 76mm (3”) of a failedfastener.

7. DO NOT drive fasteners into steelbase material less then 5mm(3/16”) thick, within 51mm (2”) of aweld, within 13mm (1/2”) of theedge or within 25mm (1”) of anotherfastener.

8. When fastening into masonry walls,always drive into horizontal mortarjoints, NEVER into vertical mortarjoints. BE CAREFUL, a poorly laidjoint may permit too much penetra-tion, and/or unsatisfactory holdingpower.

9

Safety Precautions

1”

TOO THIN

WELD

1/2”

NO YESG 018

G 018

G 018

G 018

76 mm3"

3X

1X76mm

3"76mm

3"

76mm3"

5 mm MIN3/16"

25 mm1"13 mm

1/2"

10

OPERATING THE TOOL

1. ALWAYS hold tool perpendicular towork surface.

2. Should the tool fail to fire, hold themuzzle firmly against the work sur-face for 30 seconds. Then removethe tool, eject the load and safelydiscard the misfired load into wateror oil.

3. ALWAYS use the spall shield whendriving directly into concrete orsteel. ALWAYS wear goggles.

4. NEVER use a powder actuated toolin an explosive or flammable atmos-phere or when non sparking toolsare required.

POWDER LOADS ANDFASTENERS

1. NEVER leave unfired powder loadson floors or work surfaces.

Safety Precautions

11

������

GAS

LINEGASOLINE

482-49

POWDER

LOADS

482-51

POWDER

LOADS

Safety Precautions

������90°

������

������

30

������

WATER

SpallShield

G 018G 018

G 018G 018

G 018

12

6. Fasteners are a permanently in-stalled fixture. An act of demolitionis required for their removal. Appro-priate safety precautions must betaken.

Safety Precautions

2. Remington Powder Loads areavailable in four power levels withgray (1) being the lowest powerlevel and yellow (4) being the high-est power level. Always start withthe lowest power level (gray-level 1)and increase until a proper fasten-ing is made.Always use Remingtonpowder loads or loads manufac-tured to specifications outlined inthe P.A.T.M.I. “Technical Data Per-taining to Powder Loads (Boost-ers)”.

4. NEVER carry fasteners or otherhard objects in the same pocket orcontainer with powder loads.

5. A color blind person must take extraprecautions to prevent the chanceof mixing the powder loads of vari-ous levels.

3. NEVER use powder loads in fire-arms.

13

POWDER

LOADS

482-54

POWDER

LOADS

482-55

YELLOW?BROWN ?GREEN ?GRAY ?

NOTE: Failure to start with the lowest power level canresult in overdrive condition and will result in damageto tool.

Safety Precautions

Start

3GREEN

2BROWN

4YELLOW

12

345

6 789

1011

12

1

22

LEK

CIN

BR

AS

S

482-53

CALIBER1GRAY

POWERLOADSONLY!

G 018 G 018

G 018

G 018

14

Safety Precautions

7. NEVER use fasteners longer than63.5mm (2 1/2”). NEVER use com-mon nails. Remington Power Fas-teners are manufactured from spe-cial steel and heat treated to pro-duce a very hard, yet ductile fas-tener.

8. NEVER pry a load out of the cham-ber. Prying can discharge the loadcausing serious injury.

9. ALWAYS insert the fastener first,then the powder load. If work isinterrupted for any reason, AL-WAYS remove the powder loadbefore removing the fastener.

Why A Fastener Holds

CONCRETE:As a general rule, penetration should beapproximately 25mm to 32mm (1” to 1 1/4”) into the base concrete. Make surethe concrete is at least three times asthick as the intended fastener penetra-tion. Never have the fastener pointprotude thru the concrete.NOTE: Concrete needs to cure for 28days before maximum fastening holdingpower will be achieved.

STEEL:In steel, the point of the fastener mustpenetrate completely through for high-est holding power. If not, the springaction of the steel pushes back on thepoint and tends to force the fastener out.

Recommended application are between5mm to 8mm (3/16-5/16”) steel.

15

Safety Precautions

Overdriven Fasteners

An overdriven fastener results when toostrong of a powder load is used causingthe piston to extend past the muzzle.Move to the next lightest powder load.Repeated overdrive will damage yourtool. By avoiding overdrive, you can ex-tend the life of your tool considerably.NOTE: NEVER fire the tool without afastener. This can damage the tool and/or cause possible injury to the operator.IMPORTANT: If the tool does not openafter firing and the piston is overdriven,see Piston Overdrive, page 18.

➀➁LOAD UNLOAD

➁➀

Shank

PlasticFlute

Head

G 018

16

LOADING THE POWERHAMMER1. Insert the proper fastener into the

muzzle, round metal head first.Push fastener until the point is evenwith the end of the muzzle.

2. Grab the muzzle and pull forwarduntil it stops. This sets the pistonand opens the chamber area.

3. Insert the proper Remington Pow-der Load into the chamber, whileholding the muzzle downward. Besure to keep holding the muzzledownward and away from you. Thepowder load will not seat fully.

4. Push the barrel into the housinguntil it stops and hold in the closedposition keeping the muzzlepointed down. This keeps the pow-der load from falling out of the cham-ber.

FIRING THE POWERHAMMER1. Place the muzzle of the tool against

the work surface, hold at 90°, DoNot Tilt.

2. Hold the grip with one hand andpush down, compressing thespring. The groove around the bar-rel and outside of the housing at thechamber area MUST line up (asshown) for the tool to operate prop-erly. If the grooves DO NOT line up,check that the powder load has notfallen out of the chamber.

3. ALWAYS keep the chamber open-ing away from the wrist to avoidcontact from escaping gas.

4. Using a one pound hammer, HITTHE FIRING PIN SQUARELYWITH A SHARP, STRONG BLOW.Hold the hammer as close as youcan to the tool head to improve youraccuracy. For best results, work at alevel below shoulder height.

5. If the powder load does not fire withthe first blow, wait 30 seconds, ejectthe powder load and start overagain. NOTE: A LIGHT HAMMERBLOW WILL JAR THE DRIVE PIS-TON OUT OF PROPER POSITIONCAUSING LESS POWER ANDPENETRATION OF THE FAS-TENER.

Operation

17

Operation

SpringMust BeCompressed

FiringPin

Line UpGrooves

Muzzle FiringPin

Grip

Barrel

Chamber

LOADING

FIRING

EJECTING

Continued

18

CARE OF YOUR POWERHAMMERClean your Powerhammer after eachday’s use. Clean chamber with acces-sory wire brush, part number 56485.Apply good quality penetrating lubricantspray (such as WD-40) sparingly andwipe dry.

NOTE: The labor regulations of manycounties require that the operator of thistool on a job site be thoroughly trainedand certified for compentence prior tooperating this tool.

6. After the fastening is made, removethe tool from the work surface. Grabthe barrel and pull forward rapidly.This ejects the spent load and setsthe piston in the firing position.

7. NOTE: THE TOOL CANNOT BEFIRED IN THE OVERHEAD POSI-TION.

PISTON OVERDRIVEIf the tool does not open after firing andthe piston is 13mm (1/2 ”), or more out ofthe muzzle:1. Place the muzzle end of the tool

against wooden work surface andhold grip with one hand.

2. Hit the firing pin with a hard hammerblow several times and force pistonback into muzzle.

3. Eject the powder load. (See step 6of Firing The Powerhammer).

OVERDRIVE

Operation

19

Limited WarrantyDESA International warrants this RemingtonModel 476 POWERHAMMER against defects inmaterials and workmanship for a period of 30days from the date of purchase. This warrantyextends only to the original purchaser of thePOWERHAMMER and only applies if thePOWERHAMMER is used for normal household(non-commercial or non-professional) pur-poses.

If within 30 days from the purchase date thisPOWERHAMMER fails due to a defect in mate-rial or workmanship, DESA will repair or replacethe tool at DESA’s option. However, this war-ranty does not cover failures caused by misusingor abusing the product (for proper use of thisproduct, read and understand the operating in-structions in this owner’s manual). In order toobtain service under this warranty, the purchasermust return the POWERHAMMER with proof ofpurchase.

If inspection shows the repairs required werecaused by defective material or workmanship,DESA will repair or replace the tool withoutcharge. Repairs made necessary because ofmisuse, abuse, negligence or accident will becharged for at regular repair prices.

This express and limited warranty is the onlywarranty on this product, and there are no war-ranties, including warranties of merchantabilityand/or fitness for a particular purpose, expressor implied, which extend beyond this expressand limited warranty.

In no event will the liability of DESA for economicinjury, property damage or any other damageswhatsoever, including consequential and inci-dental damages, arising from the sale or use ofthis product exceed the purchase price of thisproduct.

Some countries do not allow a limitation on howlong an implied warranty lasts, or an excludion orlimitation of incidental or consequential dam-ages, so the above limitation of implied warran-ties, or exclusion or limitation on damages maynot apply to you.

This warranty gives you specific legal rights, andyou may also have other rights which vary fromcountry to country.

For information about this warranty contact:

DESA EUROPEPost Bus 11158

3004 ED RotterdamThe Netherlands

Attn: Sales DepartmentTel: (31) 10-4376666Fax: (31) 10-4150910

101915-01Rev. B8/96

IMPORTANTThis tool is designed to useRemington 22 caliber neck-downcrimped loads, power levels 1(gray) through 4 (yellow).

Straight WaddedPower Load

Neck-DownCrimped Power

Load

NOTICE:This is your Owner’s Manual.

Read Carefully before operating your

Remington POWERHAMMER

AccessoriesPart No. Description56485 Brush, .25101849-01 GogglesTA4090 Shield, Spall

WARNING ICON G 001 CAUTION

Do not use any load otherthan the Remington 22 caliberneck-down crimped powderload. Other types of powderloads will cause load-ejectionproblems.

G 018

5/8"15.9mm

(5/8”)

DESA EUROPEPost Bus 11158

3004 ED RotterdamThe Netherlands

Attn: Sales DepartmentTel: (31) 10-4376666Fax: (31) 10-4150910