Hitachi Koki NT 50AE2 Instruction Manual

DANGER
Improper use of this Nailer can result in death or serious injury!
This Manual contains important information about product safety.
Read and understand this Manual before operating the Nailer.
Never allow anyone who has not reviewed this manual.
NT 50AE2 •NT 32AE2
Instruction and safety manual
Model Brad Nailer
00Cover_NT50AE2_Eng 08/3/3, 15:181

2
CONTENTS
Page
WORKING ENVIRONMENT ................................ 10
AIR SUPPLY......................................................... 11
LUBRICATION ..................................................... 12
COLD WEATHER CARE....................................... 13
TESTING THE NAILER ........................................ 13
ADJUSTING AIR PRESSURE ............................. 16
LOADING NAILS ................................................. 16
NAILER OPERATION ............................................... 17
METHODS OF OPERATION................................ 19
ADJUSTING THE NAILING DEPTH.................... 21
CHANGING THE EXHAUST DIRECTION ............ 22
USING THE NOSE CAP....................................... 22
MAINTENANCE
MAINTENANCE AND INSPECTION ....................... 23
SERVICE AND REPAIRS .......................................... 25
PARTS LIST.............................................................. 28
Page
IMPORTANT SAFETY INFORMATION ..................... 3
DEFINITIONS OF SIGNAL WORDS .......................... 3
EXPLANATION OF THE NAILING ACTION
OF THE HITACHI NAILER................................... 3
SAFETY
IMPORTANT SAFETY INSTRUCTIONS
FOR USING NAILERS ........................................... 4
EMPLOYER’S RESPONSIBILITIES............................ 7
OPERATION
NAME OF PARTS ...................................................... 8
SPECIFICATIONS....................................................... 9
NAIL SELECTION....................................................... 9
ACCESSORIES ......................................................... 10
STANDARD ACCESSORIES ............................... 10
OPTIONAL ACCESSORIES ................................. 10
APPLICATIONS ........................................................ 10
BEFORE OPERATION .............................................. 10

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IMPORTANT SAFETY INFORMATION
Read and understand tool labels and all of the operating instruc-
tions, safety precautions and warnings in this manual before oper-
ating or maintaining this nailer.
Failure to follow warnings could result in DEATH or SERIOUS
INJURY.
MostaccidentsthatresultfromtheoperationandmaintenanceofNailersarecausedbythe
failure to observe basic safety rules or precautions. An accident can often be avoided by
recognizing a potentially hazardous situation before it occurs, and by observing appropri-
ate safety procedures.
Basic safety precautions are outlined in the “SAFETY” section of this Manual and in the
sections which contain the operation and maintenance instructions.
Hazardsthatmust be avoided to preventbodily injuryormachinedamageare identified by
DANGERS and WARNINGS on the Nailer and in this Manual.
Never use this Nailer for applications other than those specified in this Manual.
DEFINITIONS OF SIGNAL WORDS
DANGER indicates an imminently hazardous situation which, if not avoided, will result in
death or serious injury.
WARNING indicatesa potentiallyhazardous situation which,if notavoided, couldresult in
death or serious injury.
CAUTION indicates a potentially hazardous situation which, if not avoided, may result in
minor or moderate injury, or may cause machine damage.
NOTE emphasizes essential information.
EXPLANATION OF THE NAILING ACTION OF THE HITACHI NAILER
䡬SINGLE ACTUATION MECHANISM (SINGLE SEQUENTIAL ACTUATION MECHANISM):
First, press the push lever against the wood; next, pull the trigger to drive the fastener.
First, pull the trigger; next, press the push lever against the wood to drive the fastener.
Afterfasteningonce,fastening willnotbepossibleagain untilthetriggerisreleased and
pressed again.
䡬CONTACT ACTUATION MECHANISM:
First, press the push lever against the wood; next, pull the trigger to drive the fastener.
First, pull the trigger; next, press the push lever against the wood to drive the fastener.
If the trigger is held back, a fastener will be driven each time the push lever is pressed
against the wood.

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SAFETY
IMPORTANT SAFETY INSTRUCTIONS
FOR USING NAILERS
READ ALL INSTRUCTIONS
DANGER
1. OPERATORS AND OTHERS IN WORK AREA MUST WEAR SAFETY GLASSES WITH SIDE
SHIELDS. When operating the Nailer, always wear safety glasses with side
shields, and make sure others in work area wear safety glasses, too.
Safety glasses must conform to the requirements of American
National Standards Institute, ANSI Z87.1 and provide protection
against flying particles both from the front and side.
The employer must enforce the use of safety glasses by the Nailer
operator and others in work area.
2. NEVER USE OXYGEN OR OTHER BOTTLED GASES. EXPLOSION MAY OCCUR.
Never use oxygen, combustible gases or any other bottled gases as
a power source for the Nailer.
Use of the above gases is dangerous, as the Nailer will explode.
Use only clean, dry, regulated compressed air.
WARNING
3. NEVER POINT TOOL AT YOURSELF OR OTHERS IN WORK AREA.
Always assume the Nailer contains fasteners.
NeverpointtheNaileratyourselftowardyourselforothers,whether
it contains fasteners or not.
If fasteners are mistakenly driven, it can lead to severe injuries.
Never engage in horseplay with the Nailer.
Respect the Nailer as a working implement.
4. KEEP FINGERS AWAY FROM TRIGGER WHEN NOT DRIVING FASTENERS TO AVOID
ACCIDENTAL FIRING.
Never carry the Nailer with finger on trigger since you could drive a fastener
unintentionally and injure yourself or someone else.
Always carry the Nailer by the handle only.
5. CHOICE OF TRIGGERING METHOD IS IMPORTANT.
Read and understand section titled “METHODS OF OPERATION” (pages 19 – 21).
6. DO NOT EXCEED 120 psi. (8.3 bar 8.5 kgf/cm2)
Do not exceed maximum recommended air pressure
120 psi (8.3 bar 8.5 kgf/cm2).
NeverconnecttheNailertopressurewhichpotentially
exceeds200psi (13.7bar 14kgf/cm2) astheNailer can
burst.

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SAFETY — Continued
WARNING
7. ALWAYS WEAR EAR AND HEAD PROTECTION.
Always wear ear protection to protect your ears from loud noise.
Always wear head protection to protect your head from flying objects.
8. STORE NAILER PROPERLY.
Whennotinuse,theNailer shouldbestoredinadryplace.Keep outofreachofchildren.
Lock the storage area.
9. KEEP WORK AREA CLEAN.
Clutteredareasinviteinjuries.Clearallworkareasofunnecessarytools,debris,furniture,etc.
10.NEVER USE IN PRESENCE OF FLAMMABLE LIQUIDS OR GASES.
The Nailer produces sparks during operation.
Neveruse theNailerin sitescontaining lacquer,paint, benzine,thinner,gasoline, gases,
adhesive agents, and other materials which are combustible or explosive.
11.KEEP VISITORS AWAY.
Do not let visitors handle the Nailer.
All visitors should be kept safely away from work area.
12.DRESS PROPERLY.
Do not wear loose clothing or jewelry as they can be caught in moving parts.
Rubber gloves and nonskid footwear are recommended when working outdoors.
Wear protective hair covering to contain long hair.
13.NEVER USE NON RELIEVING COUPLER ON NAILER.
IfanonrelievingcouplerisusedontheNailer,theNailercanremainchargedwithairafter
disconnecting and thus will be able to drive a fastener even after disconnecting.
TheNailerandairhosemusthaveahosecouplingsuchthatallpressureisremovedfrom
the Nailer when the coupling joint is disconnected.
14.CHECK PUSH LEVER BEFORE USE.
Make sure the push lever operates properly. (The push lever may be called “Safety”.)
Never use the Nailer unless the push lever is operating properly, otherwise the Nailer
could drive a fastener unexpectedly. Do not tamper with or remove the push lever,
otherwise the push lever becomes inoperable.
15.KEEP ALL SCREWS AND COVERS TIGHTLY IN PLACE.
Keep all screws and covers tightly mounted. Check their condition periodically.
Never use the Nailer if parts are missing or damaged.
16.DO NOT LOAD FASTENERS WITH TRIGGER PULLED OR PUSH LEVER DEPRESSED.
When loading fasteners into the Nailer or when connecting the air hose,
1) do not pull the trigger;
2) do not depress the push lever; and
3) keep the Nailer pointed downward.
17.KEEP FACE, HANDS AND FEET AWAY FROM FIRING HEAD AT ALL TIMES.
Never place your face, hands or feet near the firing head.
18.PLACE NAILER PROPERLY ON WORKPIECE.
DonotdrivefastenersontopofotherfastenersorwiththeNailerattoosteepofanangle;
the fasteners can ricochet and hurt someone.
19. BEFORE STARTING WORK, CHECK THE FASTENING OPERATION SWITCHING DEVICE.
This Hitachi nailer includes a fastening operation switching device.
Before starting work, check the setting of the operation switching device.
If the switching device is not set properly, the nailer will not operate correctly.