Hitachi NR 83A Operator's manual

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English
[MPORTANTINFORMATION ...........
DEF[NITIONSOF SIGNAL WORDS ..
8AFETY
IMPORTANTSAFETY INSTRUCTIONS
FORUSING NAILERS ........................
EMPLOYER*SRESPONSIBILITIES .
OPERATION
NAMEOF PARTS ........................
SPECIFICATIONS........................
NAILSELECTION ........................
ACCESSORIES. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STANDARDACCESSORIES ..
OPTIONALACCESSORIES ...
APPLICATIONS............................
CONTENTS
Page
3
3
4
6
7
8
8
8
8
9
9
BEFOREOPERATION ..................
WORK[NGENVIRONMENT ....
LUBRICATION.........................
COLDWEATHER CARE .........
TESTINGTHE NAILER ..........
ADJUSTINGAIR PRESSURE .
LOAD[NGNAILS ......................
NAILEROPERATION ....................
METHODSOF OPERATION ...
MAENTENA~ICE
MAINTENANCEAND INSPECTION .
SERVICEAND REPAIRS ..................
PARTSLIST ... ....... .... .. . ..
Page
9
9
9
.10
10
10
11
11
12
13
14
14
42
Fran~ais
INFORMATIONIMPORTANTE ........................
DEFINITIONDES MOTS DE SIGNAL[SATION
SECURITE
CONSIGNESDE SECURITE [MPORTANTES
POURL'UTILISATION DU CLOUEUR .........
RESPONSAB[LITESDE L'EMPLOYEUR ..........
UTBLRSAT]ON
NOMDES PIECES .......................
SPECIFICATIONS........................
SELECTIONDES CLOUS ............
ACCESSOIRES............................
ACCESSOIRESSTANDARD .
ACCESSOIRESEN OPTION .
APPLICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . .
TABLEDE NiATIERES
Page
16
16
17
19
20
21
21
21
21
22
22
AVANTL'UTILISATION .. ... .. ....... ,... .. . . . .. .. .
ENVIRONNEMENTDE TRAVAIL .......
ALIMENTATIOND'AIR .......................
ENTRETIENpAR TEMpS FRO[D .....
ESSAIDU CLOUEUR .........................
R~GLAGEDE LA PRESSION D'AIR ..
CHARGEMENTDES CLOUS .............
UTILISAT[ONDU CLOUEuR ...................
METHODESD'UTILiSATION .............
E~ITRETIE~!
ENTRETIENET INSpECTION .....
ENTRETIENET REpARATIONS .
LESTADES PI~CES ....................
Page
22
22
22
23
23
23
24
24
25
26
27
27
42
Espanol
INFORMAClbNIMPORTANTE ...................
DEFIN[C[bNDE LAS PALABRAS CLAVE .
INDICI~
p~gina
29
29
SEGURIDAD
INSTRUCCIONESIMPORTANTES DE SEGURiDAD PARA
LAUTILiZACldN DEL MARTiLLO NEUMATICO ...........
RESPONSABILIDADESDEL EMPRESARIO ...............
OPERACION
NOMENCLATURA..........................
ESPECIFICACION ES . . . . . . . . . . . . . . . . . . . . .
SELECCldNDE PUNTAS .............
ACCESORIOS. . . . . . . . . . . . . . . .
ACCESORIOSESTANDAR .
ACCESORIOSOPCIONALES ..
APLICACIONES.............................
30
32
33
34
34
34
34
35
35
ANTESDE LA OPERACldN .......................
ENTORNODE TRABAJO ....
SUMINISTRODE AIRE .............................
CUIDADOSPARA CLIMAS FRfoS ....
PRUEBADEL MARTILLO NEUMATICO ...
AJUSTEDE LA PRESldN DE AIRE ..........
CARGADE PUNTAS .................................
OPERACldNDEL MARTILLO NEUMATICO ..
M~TODOSDE OPERACldN .....................
WIANTEN]MEENTO
MANTENIMIENTOE INSPECCldN .
SERVICIOY REPARACIONES ........
L[STADE PIEZAS ............................
p~gina
35
35
35
36
36
36
37
37
38
39
40
40
42

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S~i~~ry
IMIPORTANiTSAFETY INSTRUCTIONS
FORUSING ~IAILERS
READALL INSTRUCTIONS
~DANGER
1. ALWAYS WEAR EYE PROTECTOR.
~,"-~,'¥¥¥~i.~"'
2.NEVER USE BO~LED GASES.
~'
L"i"~i^
Whenoperating the Nailer, always wear eye protector, and make sure
othersin work area wear eye protector, too.
Eyeprotector must conform to the requirements of American National
StandardsInstitute, ANS[ Z87.1 and provide protection against flying
particlesboth from the front and side.
Theemployer must enforce the use of eye protector by the Nailer
operatorand others in work area.
Neveruse oxygen, combustible gases or any other bottled gases as a
powersource for the Nailer.
Useof the above gases is dangerous, as the Nailer will explode.
Useonly ciean, dry, regulated compressed air.
~WARNING
3.
DONOT EXCEED 120 psi.
~~
~,*=:"'¥~~..,::"
Donot exceed maximum recommended air pressure 120 psi (8.3 bar
8.5kgf/cm2).
Neverconnect the Nai[er to pressure which potentially exceeds 200 psi
(13.7bar 14kgf/cm2) as the Nailer can burst.
4.NEVER POENT NAILER TOWARD YOURSELFOR
ANYONEELSE.
Alwaysassume the Nai[er contains fasteners.
Neverpoint the Nailer toward yourself or anyone else,
whetherit contains fasteners or not.
Iffasteners are mistakenly driven, it can lead to severe
injuries.
Neverengage in horseplay with the Nailer.
Respectthe Nailer as a working implement.
5.
6.
NEVERCARRY WITH FENGER ON TRIGGER.
Removefinger from trigger when not driving fasteners.
Nevercarry the Nailer with finger on trigger since you
coulddrive a fastener unintentionally and injure
yourselfor someone else.
Alwayscarry the Nailer by the hand[e on[y.
ALWAYSWEAR EAR A~D HEAD PROTECTOR.
Alwayswear ear protector to protect your ears from
loudnoise.
Alwayswear head protector to protect your head from
flyingobjects.
-4-

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7.STORENAILER PROPERLY.
Whennot in use, the Nailer should be stored in a dry
place.Keep out of reach of children. Lock the storage
area.
8.KEEP WORK AREA CLEANi.
Clutteredareas invite injuries. Clear all work areas of
unnecessarytools, debris, furniture, etc.
9.NEVER USE IN PRESENCE OF FLAMMABLE
LIQUIDSOR GASES.
TheNailer produces sparks during operation.
Neveruse the Nailer in sites containing lacquer, paint,
benzine,thinneT, gasoline, gases, adhesive agents,
andother materials which are combustible or explosive.
10.KEEP ViSITORS AWAY.
Donot let visitors handle the Nailer.
Allvisitors should be kept safely away from work
area.
11.
12.
13.
14.
15.
DRESSPROPERLY.
Donot wear ioose clothing or jewe[ry as they can be
oaughtin moving parts.
Rubbergloves and nonskid footwear are
recommendedwhen working outdoors.
Wearprotective hair covering to contain long hair.
NEVERUSE NON REL[EV[NG COUPLER ON
NAILER.
Ifa non relieving coupler is used on the Nailer, the
Nailercan remain charged with air after disconnecting
andthus wili be able to drive a fastener even after
disconnecting.
TheNailer and air hose must have a hose coupling
suchthat all pressure is removed from the Nailer
whenthe coupiing joint is disconnected.
CHECKPUSH LEVER BEFORE USE.
Makesure the push lever operates properly. (The
pushlever may be called "Safety".) Never use the
Nailerunless the push lever is operating properly,
otherwisethe Nailer could drive a fastener
unexpectedly.Do not tamper with or remove the push
lever,otherwise the push lever becomes inoperable.
KEEPALL SCREWS AND COVERS TIGHTLY INl
PLACE.
Keepall screws and covers tightly mounted. Check
theircondition periodically.
Neveruse the Nailer if parts are missing or damaged.
DONOT LOAD FASTENERS WITH TRIGGER OR
PUSHLEVER DEPRESSED.
Whenloading fasteners into the Nailer or when
conneotingthe air hose,
1)do not depress the trigger;
2)do not depress the push lever; and
3)keep the Nailer pointed downward.
16.KEEP HANDS AND FEET AWAY FROMI FIRING
HEADDURING USE.
Neverplace your hands or feet cioser than 8 inches
(200mm) from the firing head.
Aserious injury can resuit if the fasteners are
deflectedby the workpiece, or are driven away from
thepoint of entry.
17. PLACE NIAILER PROPERLY ON WORKPIECE.
Donot drive fasteners on top of other fasteners or
withthe Nailer at too steep of an angle; the fasteners
canricochet and hurt someone.
18.BE CAREFUL OF DOUBLE FIRE DUE TO RECOIL.
Ifthe push lever is uninientional[y allowed to re-contact
theworkpiece following recoil, an unwanted fastener
willbe driven.
Inorder to avoid this undesirable double fire,
1)do not push the Nailer on the workpiece with
strongforce;
2)take the Nailer completely away from the
workpieceusing recoil, and keep the push lever
awayfrom the workpiece until the next desirable
shot;and
3)pull the trigger and release it QUICKLY when
performingintermittent operation (trigger fire).
19.DO NOT DRIVE FASTENERS INTO THIN
BOARDSOR NEAR CORNERS AND EDGES OF
WORKPIECE.
Thefasteners can be driven through or away from the
workpieceand hit someone.
20.NEVER DRIVE FASTE~NERS FROMI BOTH StDES
OFA WALL AT THE SAME TIME.
Thefasieners can be drive.n into and through the wall
andhit a person on the opposite side.
21. CHECK FOR LIVE WIRES.
Avoidthe risk of severe electrical shock by checking
forlive eiectrical wires that may be hidden by walls,
floorsor ceilings. Turn off the breaker switch to
ensurethere are no live wires.
22.NEVER CARRY NAILER BY HOSE.
23.DO NOT OVERREACH.
Keepproper footing and balance at all times.
24.NEVER USE NAtLER WHICH IS DEFECTIVE OR
OPERATINGABNORMALLY.
Ifthe Nailer appears to be operating unusually,
makingstrange noises, or otherwise appears
defective,stop using it immediately and arrange for
repairsby a Hitachi authorized service center.
25.DO NOT DISCONNECT AIR HOSE FROM NAILER
WITHFINGER ON TRiGGER.
TheNailer can fire when re-connected to an air supply.
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~~i~~~~y:
eoniSiweti
26.DISCONNECT AI~ HOSE FROM NAaLER WHEN:
1) doing maintenance and inspection;
2)clearing a jam;
3)it is not in use;
4)Ieaving work area;
5)moving it to another location; and
6)handing it to another person.
Neverattempt to clear a jam or repair the Nailer unless
youhave disconnected air hose from the Nailer and
removedall remaining fasteners from the Nailer.
TheNailer should never be left unattended since people
whoare not fami[iar with the Nailer might handle it and
injurethe themselves.
27.STAY ALERT.
Watchwhat you are doing. Use common sense.
Donot operate the Nailer when you are tired.
TheNailer should never be used by you if you are under
theinfluence of alcohol, drugs or medication that makes
youdrowsy.
28.HANDLE NAILER CORRECTLY.
Operatethe Nailer according to this Manual.
Neverallow the Nailer to be operated by children,
individualsunfamiliar with its operation or unauthorized
personnel.
29.NEVER USE NAILER FOR APPLHCATIO~IS
OTHERTHAN TH0SE SPECEFEED HN THlS
MANUAL.
30.HANDLE NAILER CAREFULLY
Becauseof high air pressure in the Nailer, cracks in the
surtaceare dangerous.
Toavoid this, do not drop the Nailer or strike the Nailer
againsthard surfaces; and do not scratch or engrave
signson the Nailer. Handle the Nailer carefully.
31.WiAINTAaN NAILER WITH CARE.
Keepthe Nailer clean and lubricated for better and safer
performance.
32.USE ONILY PARTS, ACCESSORIES OR
FASTENERSSUPPLI~:D OR RECOMMENDED BY
HITACHL
Unauthorizedparts, accessories, or fasteners may void
yourwarranty and can lead to malfunction and resulting
injuries.
Onlyservice personnel trained by Hitachi, distributor or
employershall repair the Nailer.
Nevermodity or alter a nailer. Doing so may cause it to
malfunctionand personal injuries may result.
E~iPLOYER'SRESPONSIBILITIES
1.Ensure that this MANUAL is available to operators and
personnelperforming maintenance.
2.Ensure that Nailers are used only when operators and
othersin work area are wearing EYE PROTECTOR.
3.Enforce the use of EYE PROTECTOR by operators and
othersin work area.
4.
5.
6.
KeepNailers in safe working order.
MaintainNailers properly.
Ensurethat Nailers which
usedbefore repair.
equirerepair are not further
SAVIETHIS ~IA~UAL AND
KEEPIT AVAILABLE FOR OTHERS!
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NOTE:
Theinformation contained in this Manual is designed to assist you in the safe operation of the
Nailer.
Someillustrations in this Manual may show details or attachments that differ from those on
yourown Nailer.
NAMEOF
PARTS
<NR83A>
Piston
PistonO-ring
DriverBlade
Nose
ExhaustCover
PushLever
CO
TriggerBody
~~i
cap
/
~
,,,(,,
AirPlug (Sold separete[y)
/
~
RebbonSpring
StopLever
NailFeeder
MagazineAssembiy
Outlet(Firing Head)
<NR83AA>
ExhaustCover
Trigger
Body
Cap
RibbonSpring
Piston
PistonO-ring
DriverBlade
l
~~
StopLever
o
o
NailFeeder
Magazine
Nose
o
PushLever
Outlet(Firing Head)
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English
SPECIFICATIONS
ModelN R83A N R83AA
Operatingpressure 70 - 120 psi (4.9 - 8.3 bar 5 - 8.5 kgflcm2) 
DimensionsLength x Height x Width 21 -3/1 6" x 1 3-318" x 4-1/4" (538 mm x 340 mm x I 08 mm) 1 6-3/4" x 1 4-3/1 6" x 4-1/4" (425 mm x 360 mm x I 08 mm)
Weight7.9 Ibs (3.6 kg) 7.9 Ibs (3.6 kg)
Nailcapacity 64 - 70 nails (2 strips) 74 - 84 nails (2 strips)
Airconsumption .088 ft3/cycle at I OO psi (2.5 Itr/cycle at 6.9 bar) (2.5 Itrlcycle at 7 kgf/cm') .088 ft3lcycle at I OO psi (2.5 Itrlcycle at 6.9 bar) (2.5 Itrlcycle at 7 kgf/cm2)
Airinlet 3/8 NPT Thread 
NAILSELECTIO~l
Onlynaiis shown in the Table below can be driven with this Nailer.
NR83A N R83AA 
Plastic-collatedstrip nails Min. Max. Paper-collated strip nails Min. Max.
Full-headnails .2861[ .311 Clipped-head nails .266tl .280tl
(7mm) (7.6 mm) 
~~~tt (6.8 mm) (7.1 mm)
~/ /
E~ 
E~ 
ots) E ~ 
coco o O E: 
c\Jco co 
\~t(\] 
lr\~t 
cf)1-
co
.11 31' . 1 31 II .1 1 311 .1 31 Ii
(2.9mm) (3.3 mm) (2.9 mm) (3.3 mm)
ACCESSORIES
~WARNINe
eAccessories other than those shown below can lead to malfunction and resuttin9 iniuries'
STANDARDACCESSORIES
("'~/\\\
*1>*+' R o
Model
(1'-*)~
Eyeprotector
~)
Allenwrench for M8 screw
(3)Allen wrench for M6 screw
(4'~')AIlen wrench for M5 screw
NR83A
1
1
1
1
NR83AA
1
1
1
1
-8-

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OPTIONALACCESSORIES
OSequential Trip Mechanism Ki
(ShingleShot Parts)
OPneumatic Tool Lubricant
.8oz. (25 cc) oil feeder
4oz. (120 cc) oil feeder
1quart (1 Itr) can
NOTE:
...sold separately
(CodeNo. 876762)
(CodeN0.8771 53)
(CodeN0.874042)
(CodeN0.87621 2)
Aocessoriesare subject to change without any
obligationon the part of HITACHl.
APPLICATIO~IS
o
o
o
o
o
Floorand wa[1 framing.
Trussbuild-up, Window bui[d-up.
Subflooringand roof decking.
Wallsheathing.
Mobilehome and modu[ar housing construction.
BEFORE
OPERATION
Readsection titied "SAFETY" (Pa9es 4 - 6).
Makesure ot the touowings before operation.
WORKINGENVIRON~IENT
1. Power source
OUse only clean, dry, regulated compressed air as a power
sourcefor this Nailer.
OAir compressors used to supply compressed air to this
Nailermust comply with the requirements of the latest
versionof ANSI Standard B 1 9.3 "Safety Standard For
CompressorsFor Process Industries."
OMoisture or oil in the air compressor may accelerate wear
andcorrosion in the Nailer.
Draindaily.
2.Filter-Regulator-Lubricator
OUse a regulator with a pressure range of O - 120 psi
(O- 8.3 bar O - 8.5 kgf/cm2).
OFilter-regulator-lubricator units supply an optimum
conditionfor the Nailer and extend the Nailer life.
Theseunits shou[d always be used.
Filter.............. The filter removes moisture and dirt mixed
incompressed air.
Draindaily unless fitted with an automatic
drain.
Keepthe filter clean by regular
maintenance.
Regulator....... The regulator controls the operating
pressurefor safe operation of the Nailer.
Inspectthe regulator before operation to be
sureit operates properiy.
Lubricator...... The lubricator supplies an oil mist to the
Nailer.
Inspectthe lubricator before operation to be
surethe supply of lubricant is adequate.
UseHitachi pneumatic too[ :ubricant.
AIR
Noflammable gas, Iiquid or other flammable
objectsat worksite.
Clearthe area of children or unauthorized personnel.
SUPPLY
ONever use oxygen, combustible gases or any other
bottledgases.
ONever connect Nailer to pressure which potentially
exceeds200 psi (13.7 bar 14kgf/cm2).
ONever use non relieving coupler on Naiter.
3.
4.
o
~-
NailerSide
Regulator
CompressorSide
Filter
Lubricator
Airhose
Airhose must have a minimum working pressure rating of
150 psi (1 0.4 bar i0.6 kgf/cm2) or 150'/¥ of the maximum
pressureproduced in the system, whichever is higher.
HoSecoupling
TheNailer can be installed as follows:
Removethe dust seal placed at the air inlet.
Installa 3/8 NPT male plug at the air inlet.
~$r
DustCap
~
~c
~3/8 NPT Male plug
OA femaie coupler must be on the air hose.
Thehose coupling (male plug-female coupler) must remove
allpressure from the Nailer when disconnected.
Neveruse a non relieving coupler on the Nailer.
-9-

5.Air cOnsumption
Usingthe Air consumption table and the Air compressor
sizeformula, find a correct compressor size.
Airconsumption table
psi80 90 1 OO
Operatingpressure (bar) (5.5) (6.2) (6.9)
(kgflcm')(5.6) (6.3) (7)
.062.075 .088
Alrconsumptionft3/cycle NR83A (1.7) (2.1) (2.5)
(Itrlcycle)NR83AA '062 .075 .088
(1.7) (2, I ) (2.5)
Aircompressor size formula
Amountof air required
=numberof Nailers
xaverage nails driven each minute per Nailer
xair consumption at given air pressure
xsafety factor (a[ways I .2)
Example:2 Nailers (NR83A) operating at 100 psi driving
30nails per minute
Amountof air required
=2x 30 x .088 (2.5) x I .2
=6.3CFM (ft3/min) (180 Itr/min)
Aftermaking the calculations as shown above, you should
finda compressor providing 6.3 CFM of air that is required.
LUBRICATION
[tis important that the Nailer be properly lubricated.
Withoutproper lubrication, the Nailer will not work properly
andparts wiil wear prematurely.
OUse Hitachi pneumatic tool lubricant.
Donot use detergent oil or additives. These lubricants will
harmthe O-rings and other rubber parts. This wil[ cause
theNailer to malfunction.
OFilter-regulator-lubricator units should always be used.
Keepthe lubricator filled with Hitachi pneumatic tool
lubricant.
OIf a lubricator is not available, supply 2 - 3 drops of Hitachi
pneumatictool lubricant into the air plug on the Nailer
twicea day.
COLDWEATHER CARE
ODo not store the Nailer in a cold weather environment.
Keepthe Nailer in a warm area until beginning the work.
O[f the Nailer is aiready cold, bring it in a warm area and
allowthe Nailer to warm up before use.
(1)Reduce the air pressure to 40 psi (2.8 bar
2.8kgf/cm2).
(~)_Remove ali nails from the Nailer.
(~)Connect the air hose and free-fire (blank-fire) the
Nailer.
Thelowered air pressure will be enough to free-fire the
Nailer.
Slowspeed operation tends to warm up the moving
part.
~CAUTION
ODo not free-fire the Nailer at high pressure.
TESTIN!GTHE
NAILER
OAlways wear eye protector.
ONever use Nailer unless push lever ls operating
properiy.
Beforeactually beginning the nailing work, test the Nailer by
usingthe checklist below. Conduct the tests in the following
order.
Ifabnormal operation occurs, stop using the Nailer and
contacta Hitachi authorized service center immediately.
(1)DISCONNECT AIR HOSE FROM NAILER.
REMOVEALL NAILS FROM NAILER.
[]ALL SCREWS MuST BE TIGHTENED.
Ifany screws are loose, tighten them.
~~L;_~ir~~,.:
[]THE PUSH LEVER AND TRIGGER MUST MOVE
SMOOTHLY.
Trigger
PushLever
~
u
~lr~,
C~,.
f~~'' t~~t~)t~~t
~i~~t~~
~'
Donot connect
{~
airhose
~~~~
-10-