Makita AN901 User manual

Construction Coil Nailer
Air pressure
4.5 - 8.5 kgf1cmZG
(65 - 120 PSIG)
__
MODEL AN901
Min. hose diameter Net weight
Dimensions
(L x H x W)
(12-112" x 16" x 5-118")
Nail length Nail capacity
316 mm 408 mm 13' " 8.5 mm (5116") 3.1 kg (6.8 Ibs)
45 mm - 90 mm
(1-314" - 3-112") 150
- 300 pes'
INSTRUCTION MANUAL

IMPORTANT
SAFETY INSTRUCTIONS
WARNING: WHEN USING THIS TOOL, BASIC SAFETY PRECAUTIONS
SHOULD ALWAYS BE FOLLOWED TO REDUCE THE
RISK OF PERSONAL
INJURY, INCLUDING THE FOLLOWING:
READ ALL INSTRUCTIONS.
.For personal safety and proper operation and
maintenance of the tool, read this instruction
manual carefully before using the tool.
Alwayswear safety glassesto protect your eyes
fromdustor nailinjury. The safetyglassesshould
conformwiththe requirementsof ANSI
287.1 -
1979.
WARNIN G :
It isan employer’s responsibility to enforce the
useof safetyeye protectionequipmentbythetool
operatorsandbyother persons
in the immediate
working area.
.Wear hearing protection to protect your ears
againstexhaust noiseandheadprotection. Also
wear lightbutnotlooseclothing. Sleevesshould
be buttoned or rolled up. No necktie should be
worn.
Rushingthejob orforcing the tool isdangerous.
Handle the tool carefully.
Do not operate when
underthe influenceof alcohol, drugsorthe like.
Safety
glasses
I Head
protection
, Hearing
protection
.. ..
2

General Tool Handling Guidelines:
1. Always assume that the tool contains fasteners.
2. Do not point the tool toward yourself or anyone whether it contains fastenersor not.
3. Do not actuate the tool unless the tool is placed firmly against the workpiece.
4. Respect the tool as a working implement.
5. No horseplay.
6. Do not hold or carry the tool with a finger on the trigger.
7. Do notloadthetoolwith fastenerswhenany one of theoperatingcontrolsisactivated.
8. Do not operatethe tool with any power source other than that specified inthe tool
An improperlyfunctioning tool mustnotbeused.
operatingkafety instructions.
*Sparks sometimesfly when the tool isused.
Do
notusethetoolnearvolatile, flammablematerials
such
as gasoline, thinner, paint, gas, adhesives,
etc.; they will igniteandexplode, causingserious
injury.
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1
The area should be sufficiently illuminated to
assure safe operations.
The area should be clear and litter- free. Be
especially careful to maintain good footing and
balance.
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Onlythose involvedinthe work should be inthe
vicinity. Childrenespecially mustbekeptawayat
all times.
Theremay belocalregulationsconcerning noise
which must be complied with by keeping noise
levelswithin prescribed limits.
In certain cases,
shutters should be used to contain noise.
Do notplaywiththecontactelement: it prevents
accidental discharge,
so it must be kept on and
not removed. Securing the trigger
in the ON po-
sition is also very dangerous. Never attempt to
fasten the trigger.
Do not operate a tool if any portion of the tool
operating controls isinoperable, disconnected,
altered, or not working properly.
Operatethetoolwithinthespecifiedair pressure
of
4.5 - 8.5 kgf/cm*G (65 - 120 PSIG) for safety
and longer tool life.
Do not exceed the recom-
mended max. operating pressure of
8.5
kgf/cmzG (120 PSIG). The tool should not be
connectedtoasourcewhosepressurepotentially
exceeds
14.0 kgf/cmzG (200 PSIG).
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8 5 kgf/cm2 G
8 5 kgf/cm2G
(120 PSIG) (120 PSIG)
4

.Never use the tool with other than compressed
air. If bottled gas (carbon dioxide, oxgen, nitro-
gen, hydrogen, air, etc.) or combustible gas
(hydrogen, propane, acetylene, etc.) is used as
apowersourcefor thistool, thetoolwillexplode
and cause serious injury.
*Always check the tool for its overall condition
and loose screws before operation. Tighten
as
required.
Makesure all safety systemsare in workingorder
before operation. The tool must not operate if
only the trigger is pulled or if only
the contact
elementispressedagainstthewood. Itmustwork
only when both actions are performed. Test for
possible faulty operation with nails unloaded.
COMPRESSED
AIR
E

.Make sure that the trigger is locked when the
change lever is set to the LOCK position.
Checkwalls, ceilings, floors, roofingandthe like
carefully to avoid possible electrical shock, gas
leakage, explosions, etc. caused by striking live
wires, conduits or gas pipes.
Useonly nailsspecified inthis manual. The use
of any other nails may cause malfunctionof the
tool.
6
*%- b
Change lever
, Triggerlock
Do not permitthose uninstructedtousethetool.
6

Makesure noone isnearby beforenailing. Never
attempt to nailfrom boththe insideand outside
at the same time. Nails may rip through and/or
fly off, presenting a grave danger.
Watch your footing and maintain your balance
with the tool. Make sure there is no one below
when working in high locations, and secure the
air hose to prevent danger if there is sudden
jerking or catching.
On rooftopsandother highlocations,nailas you
moveforward.
It iseasy to loseyourfooting ifyou
nailwhile inchingbackward. When nailingagainst
perpendicular surface, nail from the top to the
bottom. You canperformnailingoperationswith
less fatigue by doing
so.
A nailwill bebentorthetoolcanbecomejammed
if you mistakenly nail on top of another nail or
strikeaknotinthewood. The nailmay bethrown
and
hit someone, orthe tool itself canreactdan-
gerously. Place the nails with care.
7

Do notleavethe loadedtoolortheaircompressor
under pressurefor alongtime out
in thesun. Be
surethatdust, sand, chipsandforeignmatterwill
not enter the tool
in the place where you leave
it setting.
@Do not point the ejection port at anyone in the
vicinity. Keep hands and feet away from the
ejection port area.
@Whenthe air hoseisconnected,do notcarrythe
tool with your finger onthe trigger or hand
it to
someone
in this condition. Accidental firingcan
be extremely dangerous.
Handlethe toolcarefullyasthere is high pressure
inside the tool that can be dangerous if a crack
iscaused by rough handling (dropping or strik-
ing).
Do not attempt to carve or engrave on the
tool.
8

Stopnailingoperationsimmediatelyif you notice
something wrong or out of the ordinary withthe
tool.
*Always disconnect the air hoseandremoveallof
the nails:
1. When unattended.
2. Beforeperformingany maintenanceor repair.
3. Before cleaning a jam.
4. Before moving the tool to a new location.
Perform cleaning and maintenance right after
finishing the job. Keep the tool intip-top condi-
tion. Lubricate moving parts to prevent rusting
and minimize friction related wear. Wipe
off all
dust from the parts.
*When not operating the tool, always lock the
trigger by turning the change lever to the LOCK
position.
...
I-
W?& 1 -- -

*Do not operate this tool if it does not contain a
legible WARNING LABEL.
*Do not modify tool without authorization from
Makita.
Ask Makita’s Factoryor Authorizedservicecenter
for periodical inspection of the tool.
To maintain product SAFETY and RELIABILITY,
maintenanceandrepairsshould be performedby
Makita Authorized or Factory Service Centers,
always using Makita replacement parts.
SAVE THESE INSTRUCTIONS.
10

TOOL INSTALLATION INSTRUCTIONS AND USE
Selecting compressor
The air compressor must comply with the requirements of
Select acompressorthat hasample pressureandair output
to assure cost-efficient operation. The graph shows the
relationbetweennailingfrequency, applicablepressureand
compressor air output. Thus, for example, if nailing takes
place at a rate of approximately 40 times per minute at a
compression of 6 kgf/cm2G (85 PSIG), a compressor with
an air output over 95 l/minute is required. Pressure regu-
lators must be used to limit air pressureto the rated pres-
sure of thetoolwhere airsupply pressureexceedsthetool’s
ratedpressure. Failureto do so may result inserious injury
to tool operator or persons in the vicinity.
ANSI 619.3 - 1981.
Selecting air hose
Usean air hose as largeand as short as possible to assure
continuous,efficient nailing operation.With anair pressure
of 5 kgf/cm2G(70 PSIG), an air hose with an internal
diameter of over 8.5 mm (5/16”) and a length of less than
20 m (6.6 ft.) is recommended when the interval between
each nailing is 0.5 seconds. Air supply hosesshall have a
minimum working pressure rating of 10.7 kgf/cm2G (150
PSIG)or 150 percent of the maximum pressure produced
in the system whichever is higher.
Nailing frequency (timeshin )
CAUTION:
Low air outputof thecompressor,or a longor smallerdiameterair hoseinrelationtothe nailingfrequency
may cause a decrease in the driving capability of the tool.
Lubrication
To insure maximum performance, install an air set (oiler,
regulator, air filter) as close as possible to the tool. Adjust
the oiler so that one drop of oil will be provided for every
30 nails.
When an air set is not used,oilthe tool with pneumatic tool
oil by placing 2 (two) or 3 (three) drops into the air fitting.
This should be done beforeand after use. For proper lubri-
cation, the tool must be fired a couple of times after pneu-
matic tool oil is introduced.
11

Nose adapter
CAUTION:
Always lock the trigger and disconnect the hose before installing or removing the nose adapter.
When nailingworkpieces with easily-marredsurfaces, use
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Nosepiecestoringportion
Attachthe noseadapter tothe contactarm(seeright).When
not in use, store the nose adapter at the rear of the tool to
keep it from being lost.
1 Nose adapter
Loading nailer
CAUTIO N :
Always lock the trigger and disconnect the hose before loading the nailer.
Select nails suitable for your work.
Depress the latch lever and open the door and magazine
cap.
Lift and turn the coil support plate to set the correct step.
When loading 90 mm (3-1/2”) long nails, use the bottom
step. When loading 65 or 75 mm(2-1/2”, 3”) long nails, use
the middle step. When loading 45 or 50 or 57 mm (1-3/4”,
2”, 2-1/4”) long nails,usethetop step. If thetool isoperated
with the coil support plate set to the wrong step, poor nail
feed or malfunction of the tool may result.
L Magazinecap
1 DoorJ L-Latc, lever
7 Magazinescale
Coil supportplate
12

Placethe nailcoilover the coil supportplate. Uncoilenough
nails to reachthe feed claw. Placethe first nail inthe driver
channelandthe second nail inthefeed claw. The nailheads
mustbe inthe slot inthe feeder body. Placeother uncoiled
nailsonfeeder body. Closethe magazinecapanddoor after
checking to see that the nail coil is set properly in the
magazine.
“i Feederbody
Adjusting depth of nailing
CAUTION:
Always lock the trigger and disconnect the hose before adjusting the depth of nailing.
I
To adjust the depth of nailing, turn the adjuster so that the
arrow abovethe adjusterwill pointto the number indicated
on the adjuster. The depth of nailing is the deepest when
the arrow points to the number 1. It will become shallower
as the arrow points to higher number. The depth can be
changed inapprox. 1 .O mm (1/32”) increments per gradua-
tion. If nailscannot be driven deep enough even when the
arrow points to the number 1, increase the air pressure. If
nailsare driventoo deep evenwhen the arrow pointsto the
number 9, decrease the air pressure. Generally speaking,
the tool service lifewill be longerwhen the tool is usedwith
lower air pressure and the adjuster set to a lower number.
Connecting air hose
Lock the trigger. Slipthe air socket of the air hose ontothe
airfittingon the nailer.Besurethat theair socketlocksfirmly
into position when installed onto the air fitting. A hose
coupling must be installedon or near the tool insuch away
that the pressurereservoir will discharge at the time the air
supply coupling is disconnected.
Air k socket
Operation
1) To drive a nail, you may place the contact element against the workpiece and pull the trigger, or
2) Pull the trigger first and then place the contact element against the workpiece.
No. 1 method is for intermittent nailing, when you wish to drive a nail carefully and very accurately.
No. 2 method is for continuous nailing.
1
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2
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For No. 1 method, setthe change leverto the “Intermittent
Nailing” position.
For No. 2 method, setthe change leverto the “Continuous
Nailing” position.After using the change lever to change
the nailingmethod, alwaysmakesurethat the change lever
isproperlyset to the positionfor the desirednailingmethod.
CAUTION:
Operating the tool without nails shortens the life of the tool and should be avoided.
Air exhaust
Air exhaustdirectioncan bechangedeasilyby rotatingthe
exhaust cover. Change it when necessary.
t cover
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Jammed nailer
CAUTION:
Always lock the trigger, disconnectthe hose and remove the nailsfrom the magazine before cleaning
a jam.
When the nailer becomes jammed, proceed as follows:
Openthe door and magazinecapand removethe nailcoil.
Inserta small rod or the like into the ejection port and tap
itwith a hammer to drive out the nailjamming the ejection
port. Reset the nail coil and close the magazine cap and
door.
Hook
The hookisconvenientfor hangingthetool temporarily.This
hook can be installed on either side of the tool.
CAUTION:
*Always lock the trigger and disconnect the hose when hanging the tool using the hook.
*Always tighten the hook securing bolt firmly. Loose bolt may cause air leakage from the tool.
14

Never hangthetool on awaist belt or the like. Dangerous
accidental firing may result.
Nails
Handlenailcoilsandtheir b x carefully. If the nail coils have
been handled roughly, they may be out of shape or their
connector breaks, causing poor nail feed.
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Avoid storing nails in a very humid or hot place or place
exposed to direct sunlight.
15

MAINTENANCE
CAUTION:
Always disconnect the hose before attempting to perform inspection or maintenance.
Maintenance of nailer
Alwayscheck thetool for itsoverallcondition and
loose screws before operation. Tighten as re-
quired.
With tool disconnected, makedaily inspection to
assurefree movementof the contact elementand
trigger. Do not use tool if the contact element or
trigger sticks or binds.
Make sure that the trigger is locked when the
change lever is set to the LOCK position.
Trigger lock
16

When the tool is not to be used for an extended period of time, lubricate the tool using pneumatic
tool oil and store the tool in a safe place. Avoid exposure to direct sunlight and/or a humid or hot
environment.
Maintenance of compressor, air set and air hose
After operation, always drain the compressor tank and the air filter. If moisture is allowed to enter the
tool, it may result in poor performance and possible tool failure.
Check regularly to see if there is sufficient pneu-
matic oil inthe oiler of the air set. Failure to main-
tain sufficient lubrication will cause O-rings to
wear quickly.
,- Air filter
Oiler
\
Pneumatic oil -A
17

Keepthe air hose away from heat (over 6OoC,over 14OoF),
awayfrom chemicals (thinner,strong acids or alkalis). Also,
route the hose away from obstacles which it may become
dangerously caught onduring operation. Hoses must also
be directed away from sharp edges and areas which may
lead to damage or abrasion to the hose.
To maintainproductSAFETY and RELIABILITY,maintenanceandrepairsshould beperformedbyMakita
Authorized or Factory Service Centers, always using Makita replacement parts.
18

(MEMO)
19

MAKITA LIMITED ONE YEAR WARRANTY
Warranty Policy
Every Makita tool is thoroughly inspected and tested before leaving the factory. It is warranted to
be free of defects from workmanship and materials for the period of ONE YEAR from the date of
original purchase. Should any trouble develop during this one-year period, return the COMPLETE
tool, freight prepaid, to one of Makita’s Factory or Authorized Service Centers. If inspection shows
the trouble is caused by defective workmanship or material, Makita will repair (or at our option,
replace) without charge.
This Warranty does not apply where:
0 repairs have been made or attempted by others:
0 repairs are required because of normal wear and tear :
0 The tool has been abused, misused or improperly maintained ;
0 alterationshave been made to the tool.
IN NO EVENT SHALL MAKITA BE LIABLE FOR ANY INDIRECT, INCIDENTAL OR CON-
SEQUENTIAL DAMAGES FROM THE SALE OR
USE OFTHE PRODUCT. THIS DISCLAIMER
APPLIES BOTH DURING AND AFTER THE TERM
OF THIS WARRANTY.
MAKITA DISCLAIMS LIABILITY FOR ANY IMPLIED WARRANTIES, INCLUDING IMPLIED
WARRANTIES
OF “MERCHANTABILITY” AND “FITNESS FOR A SPECIFIC PURPOSE,”
This Warranty gives you specific legal rights, and you may also have other rights which vary from
state to state. Some states do not allow the exclusion or limitation of incidental or consequential
damages,
so the above limitation or exclusion may not apply to you. Some states do not allow
limitationonhow long animplied warranty lasts,
so the above limitation may not apply to you.
AFTER THE ONE-YEAR TERM OFTHIS WARRANTY.
Makita Corporation
3-11 -8, Sumiyoshi-cho,
Anjo, Aichi
446-8502 Japan
884286 - 064
PRINTED INJAPAN
1999 - 9 - N