Everwin PN51B User manual

Before operating this tool, all operators should read and study this
manual to understand and follow the safety warnings and instructions.
Keep these instructions with the tool for future reference. REV Apr./26/2022
TOUGHER FASTER SMARTER
PN51 / PN51B / SCN51
Pneumatic Coil NailerPneumatic Coil Nailer
Operations and Maintenance ManualOperations and Maintenance Manual

1-Year Limited Warranty
CE Declaration of Conformity
Safety Instructions
Specifications and Technical Data
Operating Pressure, Setting Correct Pressure
Operation
Air Supply and Connections: Fittings, Hoses, Filters,
Air Consumption, Regulators, Supply Source
Lubrication
Fastener Loading
Tool Operation
Tool Operation Check
Maintaining the Pneumatic Tool
Driver Maintenance Instructions
Trouble Shooting / Repairs
INDEX
NOTE
The tool is designed for high speed, high volume stapling. These tools will deliver efficient, dependable
service when used correctly and with care. As with any fine power tool, the manufacturer’s instructions
must be followed for best performance.
Please study this manual before operating the tool and understand the safety warnings and cautions. The
instructions on installation, operation and maintenance should be read carefully, and the manuals kept for
reference.
Additional safety measures may be required because of your particular
application of the tool. Contact your EVERWIN representative or distributor with any questions concerning
the tool and its use.
Everwin Pneumatic Corp.,
No.7, Wugong 7th Road, Wufeng District, Taichung City, 413, Taiwan
Introduction
3
4
5
7
7
8
10
11
12
13
16
17
17
18

(U.S. and Canada Only)
EVERWIN products are designed and manufactured to the highest standards of both material and workman-
ship. EVERWIN warrants to the original retail purchaser that the product purchased is free from defect in
material and workmanship and agrees to repair or replace at EVERWIN ‘s option any defective EVERWIN
pneumatic stapler or er for a period of one year, subject to the exclusions and limitations described
hereunder.
To honor a warranty claim, EVERWIN and its authorized distributor need proof of purchase, may request the
damaged tool, serial number of the damaged tool, photos/videos of the defect for test and evaluation to
determine whether the damaged tool is within warranty conditions; your cooperation in this regard will be
appreciated to expedite the claim process and to help with EVERWIN’s continuous efforts in quality
improvement.
Warranty Exclusions
The following warranty exclusions apply :
．Normal wear parts are not covered by this warranty. Examples of such parts include, o-rings and seals,
driver blades, bumpers, pistons and piston rings.
．Failure due to normal wear, neglect, abuse, misuse, misapplication, accidents, over-pressure usage,
improper storage, shipping damages, improper maintenance, operation not within the operation manual’s
specification etc. are not covered by this warranty.
．Labor charges, loss, repairs from improper maintenance and/or usage of non-EVERWIN parts are not
covered by this warranty.
．This warranty does not apply to production or industrial tools as defined by EVERWIN; industrial or
production tools are covered on the following grounds.
Grounds For Industrial / Production Tool Coverage
For high production industrial tools, coverage is limited to 90 days due to high volume usage; warranty on
production tools cannot be guaranteed due to unpredictable circumstances.
Tools are subjected to abuse such as hammering or usage of adjustment tools, especially true in loan tool
programs. Upon receiving a report, EVERWIN and its authorized distributor may request the damaged tool,
serial number of the damaged tool (as a gauge for the tool’s age) and photos/videos of the defect for test and
evaluation to find root causes.
EVERWIN’s analyst will judge the issuance of defective parts and will replace at no charge if evaluation
results show that the root cause is defect in material and / or
workmanship.
All warranty services will be carried out by EVERWIN authorized repair centers, please contact
: [email protected] for the location most convenient for you.
NOTE
1-Year Limited Warranty
3

CE Declaration of conformity
EVERWIN PNEUMATIC CORP. declares that the product as described in attached documentation
is in conformity with the Machinery Directive 2006/42/EC and the European standard EN 792-13.
CE Dichiarazione di conformità
EVERWIN PNEUMATIC CORP. dichiara, assumendo la piena responsabilità, che questa fissatrice
e conforme alla Direttive Europee 2006/42/EC e alla norma
armonizzata EN 792-13.
CE Konformitätserklärung
EVERWIN PNEUMATIC CORP. erklärt hiermit in alleiniger Verantwortung das dieses Gerät
ubereinstimmt mit den Europäischen Richtlinien 2006/42/EC undden Europäischen Norm EN 792-13.
CE Déclaration de conformité
EVERWIN PNEUMATIC CORP. déclare et prend sur soi toute la responsabilité de cette déclaration,
que le produit esten conformité avec les Directives Européennes 2006/42/EC et avec la norme
harmonisée EN 792-13.
CE konformiteitsverklaring
EVERWIN PNEUMATIC CORP. verklaart hierbij onder eigen verant woordelijkheid dat deze machine
in overeenstemming is met de Europese Richtlijnen 2006/42/EC en de Europese norm EN 792-13.
CE Declaracion de conformidad
EVERWIN PNEUMATIC CORP. declaramos bajo nuestra sola responsabilidad que este producto
esta enconformidad con las Directivas Europeas 2006/42/EC y con la normativa EN 792-13.
Overensstemmelseserklæring / CE Deklaration
EVERWIN PNEUMATIC CORP. erklærer herved, at produktet er i overenstemmelse med nedenstående
normer eller normative dokumenter 2006/42/EC i henhold til bestemmelserne i EU’s direktiv EN 792-13.
Överstämmelseförklaring / CE Deklaration
EVERWIN PNEUMATIC CORP. förklarar härmed att produkten överensstämmer med följande
normer och direktiv 2006/42/EC och SS-EN 792-13.
SAMSVARSERKLÆRING / CE Deklaration
EVERWIN PNEUMATIC CORP. erklærer herved att produktet er i samsvar med følgende normer
og direktiv 2006/42 EC og NS-EN 792-13.
Todistus CE standardinmukaisuudesta
EVERWIN PNEUMATIC CORP. vakuuttaa täten tuotteen vastaavan seuraavla standardeja ja
direktiivejä: 2006/42/EC ja EN 792-13.
Deklaracja zgodności CE
EVERWIN PNEUMATIC CORP. oświadcza, że produkty opisane w załączonej dokumentacji
spełniają wymogi Dyrektywy Maszynowej 2006/42/EC oraz Europejskiej normy EN 792-13.
ENGLISH
ITALIANO
DEUTSCH
FRANCAIS
NEDERLANDS
ESPAGNOL
DANSK
SVENSK
NORSK
FINSK
POLSKIE
Machine Type : PN51 / PN51B / SCN51
Machine Name : Pneumatic Fastener Driving Tool
Place of Issue : No. 7, Wugong 7th Rd., Wufeng Dist., Taichung City 41353, Taiwan.
Date of Issue : Apr. 26, 2022
Signature of Issuer : 1
Hung-Ming Chuang
General Manager
CE Declaration of Conformity
4

NOTE
To Avoid Severe Personal Injury Or Property Damage
Before operating this tool, all operators should read and study this manual to understand
and follow the safety warnings and instructions. Failure to follow warnings could result in
death or serious injury. Keep these instructions with the tool for future reference.
Eye Protection
Which conforms to ANSI/ CE specifications and provides protection against flying particles
both from the FRONT and SIDE should ALWAYS be worn by the operator and others in
the work area when connecting to air supply, loading, operating or servicing this tool.
Eye protection is required to guard against flying fasteners and debris, which could cause
severe eye injury. The employer and/or user must ensure that proper eye protection is
worn. Eye protection equipment must conform to the requirements of the ANSI Z87.1
and 89/686/EEC, and provide both frontal and side protection.
Non-side shielded spectacles and face shields alone do not provide adequate
protection.
Caution
Additional Safety Protection will be required in some environments. For example, the
working area may include exposure to noise level which can lead to hearing damage. The
employer and user must ensure that any necessary hearing protection is provided and
used by the operator and others in the work area. Some environments will require the use
of head protection equipment. When required, the employer and user must ensure that
head protection conforming to ANSI Z89.1/ CE is used.
Air Supply and Connections
Do not use oxygen, combustible gases, or bottled gases as a power source for this tool as
tool may explode possibly causing injury.
Do not use supply sources which can potentially exceed 200 PSI (14 kg/cm2) as tool may
burst, possibly causing injury.
The connector on the tool must not hold pressure when air supply is disconnected. If a
wrong fitting is used, the tool can remain charged with air after disconnecting and thus will
be able to drive a fastener even after the air line is disconnected, possibly causing injury.
Do not pull trigger or depress contact arm while connected to the air supply as the tool may
cycle, possibly causing injury.
Always disconnect air supply: 1.) Before making adjustments; 2.) When servicing the tool;
3.) When clearing a jam; 4.) When tool is not in use; 5.) When moving to a different work
area, asaccidental actuation may occur, possibly causing injury.
C2H2
O2
Safety Instructions
5

Maintaining the Tool
When working on air tools, note the warnings in this manual and use extra care when
evaluating problem tools.
staple Loading
When loading tool: 1.) Never place a hand or any part of body in fastener discharge area of
tool; 2.) Never point tool at anyone; 3.) Do not pull the trigger or depress the trip as
accidental actuation may occur, possibly causing injury.
Operation
Always handle the tool with care: 1.) Never engage in horseplay; 2.) Never pull the trigger
unlessnose is directed toward the work; 3.) Keep others a safe distance from the tool while
tool is inoperation as accidental actuation may occur, possibly causing injury.
The operator must not hold the trigger pulled on contact arm tools except during fastening
operation as serious injury could result if the trip accidentally contacts someone or
something,causing the tool to cycle.
Keep hands and body away from the discharge area of the tool. A contact arm tool may
bouncefrom the recoil of driving a fastener and an unwanted second fastener may be
driven, possibly causing injury.
Check operation of the contact-arm mechanism frequently. Do not use the tool if the arm is
not working correctly as accidental driving of a fastener may result. Do not interfere with
the proper operation of the contact-arm mechanism.
Do not drive fasteners on top of other fasteners or with the tool at an overly steep angle as
this may cause deflection of fasteners which could cause injury.
Do not drive fasteners close to the edge of the work piece as the wood may split, allowing
the fastener to be deflected possibly causing injury.
This tool has either selective actuation for contact actuation or continuous contact
actuation by actuation mode selectors or is a contact actuation or continuous actuation
contact tool and has been marked with the symbol above. Its intended uses are for
production applications such as pallets, furniture, manufactured housing, upholstery and
sheathing.
If using this tool in selective actuation mode, always ensure it is in the correct actuation
setting.
Do not use this tool in contact actuation for applications such as closing boxes or crates
and fitting transportation safety systems on trailers and lorries.
Be careful when changing from one driving location to another.
Safety Instructions
6

Air Consumption
Tool air consumption: PN51-2.27 cfm (1.07 liter/cycle), PN51B-2.27 cfm (1.07 liter/cycle),SCN51-2.27 cfm
(1.07 liter/cycle) of free air to operate at the rate of 100 nails per minute, at 90 psi (6.0 kg/cm2). Take the
actual rate at which the tool will be run to determine the amount of air required. For instance, if your
fastener usage averages 50 nails per minute, you need 50% of the tool air consumption in running at 100
nails per minute.
Operating Pressure
70 to 120 psi (5 to 8 kg/cm2). Select the operating pressure within this range for best fastener performance.
Do not exceed this recommended operating pressure.
Tool Air Fitting
This tool uses a 1/4"-18 N.P.T or 1/4"-19 P.T male plug. The inside diameter should be .280" (7 mm) or
larger. The fitting must be capable of discharging tool air pressure when disconnected from the air supply.
Specifications
Model PN51 PN51B SCN51
Height 271mm (10.6") 271mm (10.6") 364mm (14.3")
Width 126mm (4.9") 126mm (4.9") 130mm (5.1")
Length 246mm (9.6") 246mm (9.6") 311mm (12.2")
Weight 2.0 kgs (4.4 lbs) 2.0 kgs (4.4 lbs) 3.05 kg (6.7 lbs)
Loading Capacity 200~400 200~400 150~300
Air Consumption
at 90PSI (6bar) pres.
2.75 cfm
(1.3 liter/second)
2.75 cfm
(1.3 liter/second)
3.4 cfm
(1.6 liter/second)
Fastener Specifications
Model PN51 PN51B SCN51
Nail Length 25 ~ 50mm
(1" ~ 2") 25 ~ 50mm (1" ~ 2") Wire:32~50mm(1-1/4"~2") Plastic:25~50mm(1"~2")
Shank Dia. 2.1 ~ 2.3mm
(0.083" ~ 0.090") 2.1 ~ 2.3mm (0.083" ~ 0.090") 4.2~5.3mm (0.165" ~ 0.209")
Head Dia. 4.2~5.3mm
(0.165" ~ 0.209") 4.2~5.3mm (0.165" ~ 0.209") 2.1 ~ 2.3mm (0.083" ~ 0.090")
Shank Type Smooth, Ring, Screw Smooth, Ring, Screw Smooth, Ring, Screw
Collation 15° Wire / Plastic 15° Wire / Plastic15° Wire
Specifications and Technical Data
7

Noise
A-weighted single-event sound power level LWA, 1s: PN51-102.5, PN51B-102.5, SCN51-102.5 dBA.
A-weighted single-event emission sound pressure level at work station LpA 1s,d: PN51-104.5,
PN51B-104.5, CN51-104.5 dBA.
These values are determined and documented in accordance to EN12549.
Vibration
Vibration characteristic value: PN51-3.76 m/s2, PN51B-3.76 m/s2, SCN51-3.76 m/s2
These values are determined and documented in accordance to ISO 8662-11.
This value is a tool-related characteristic value and does not represent the influence to the hand-arm-sys-
tem when using the tool. An influence to the hand-arm-system when using the tool will, for example,
depend on the gripping force, the contact pressure force, the working direction, the adjustment of mains
supply and the workpiece support.
Refer to Operation Instructions and warnings on pages before proceeding to use this tool.
1. Contact Trip
Identified by Grey TriggerIdentified by Black Trigger Identified by Trigger Switch Dial
2. Sequential Trip 3. Switchable Trigger (SCN51 only)
1. Contact Trip
The common operating procedure on “Contact Trip” tools is for the operator to contact the work to actuate
the trip mechanism while keeping the trigger pulled, thus driving a fastener each time the work is contacted.
This will allow rapid fastener placement on many jobs, such as sheathing, decking and pallet assembly. All
pneumatic tools are subject to recoil when driving fasteners. The tool may bounce, releasing the trip, and if
unintentionally allowed to recontact the work surface with the trigger still actuated (finger still holding trigger
pulled) an unwanted second fastener will be driven.
Operation
Specifications and Technical Data
Identified by Control Valve Air Inlet
4. Remote Fire
8

If trigger system is not operating as described, do not use the tool and contact your
nearest service center.
2. Squential Trip
The Sequential Trip requires the operator to hold the tool against the work before pulling the trigger. This
makes accurate fastener placement easier, for instance on framing, toe stapling and crating applications.
The Sequential Trip allows exact fastener location without the possibility of driving a second fastener on
recoil, as described under “Contact Trip”. The Sequential Trip Tool has a positive safety advantage because
it will not accidentally drive a fastener if the tool is contacted against the work – or anything else – while the
operator is holding the trigger pulled.
Single Sequential Fire Operation With Switchable Trigger
The single sequential fire operation requires the operator to hold the tool against the work with the safety
yoke depressed before pulling the trigger. In order to drive additional fasteners, the trigger must be
released and the tool lifted away from the work, before repeating the above-mentioned steps. This makes
accurate fastener placement easier, for instance on framing, toe nailing and crating applications. The single
sequential fire operation allows exact fastener location without the possibility of driving a second fastener
on recoil, as described under Continuous Bump Fire Operation (below). The single sequential fire operation
has a positive safety advantage because it will not accidentally drive a fastener if the tool is contacted
against the work - or anything else - while the operator is holding the trigger pulled.
Continuous Bump Fire Operation with Switchable Trigger
The common operating procedure on “Contact Trip” tools is for the operator to actuate the safety yoke while
keeping the trigger pulled, thus driving a fastener each time the work is contacted. This will allow rapid
fastener placement on many jobs, such as sheathing, decking and pallet assembly. All pneumatic tools are
subject to recoil when driving fasteners. The tool may bounce, releasing the safety yoke and if
unintentionally allowed to re-contact the work surface with the trigger still actuated (finger still holding the
trigger pulled) an unwanted second fastener will be driven.
WARNING
Operation
9

Fittings
Install a male plug on the tool which is free flowing and which will release air pressure from the tool when
disconnected from the supply source.
Do not use oxygen, combustible gases, or bottled gases as a power source for this tool as
tool may explode possibly causing injury.
C2H2
O2
Hoses
Air hoses should have a minimum of 150 PSI (10.6 kg/cm2) working pressure rating or 150 percent of the
maximum pressure that could be produced in the air system. The supply hose should contain a fitting that
will provide “quick disconnecting” from the male plug on the tool.
Supply Source
Use only clean, regulated compressed air as a power source for this Tool. Never use oxygen, combustible
gases, or botted gases as a power saource for this tool as tool may explode.
Regulator
Apressure regulator with an operating pressure of 0 - 125 PSI (0 - 8.79 kg/cm2) is required to control the
operating pressure for safe operation of this tool. Do not connect this tool to air pressure which can
potentially exceed 200 PSI (14kg/cm2) as tool may fracture or burst, possibly causing injury.
Operating Pressure
Do not exceed recommended maximum operating pressure as tool wear will be greatly increased. The air
supply must be capable of maintaining the operating pressure at the tool. Pressure drops in the air supply
can reduce the tool’s driving power. Refer to “Tool Specifications” for setting the correct operating pressure
for the tool.
Filter
Dirt and water in the air supply are major causes of wear in pneumatic tools. A filter will help to get the best
performance and minimum wear from the tool. The filter must have adequate flow capacity for the specific
installation. The filter has to be kept clean to be effective in providing clean compressed air to the tool.
Consult the manufacturer’s instructions on proper maintenance of your filter. A dirty and/or clogged filter
will cause a pressure drop which will reduce the tool’s performance.
Air Supply and Connections
10

Frequent, but not excessive, lubrication is required for best performance. Air - tool oil added through the air
line connection will lubricate the internal parts. Do not use detergent oil or additives as these lubricants will
cause accelerated wear to the seals and bumpers in the tool, resulting in poor tool performance
and frequent tool maintenance.
If no air line lubricator is used, add oil during use into the air fitting on the tool once or twice a day.
Only a few drops of oil at a time is necessary. Too much oil will only collect inside the tool and will be
noticeable in the exhaust cycle.
Cold Weather Operation
For cold weather operation, near and below freezing, the moisture in the air line may freeze and prevent
tool operation. We recommend the use of permanent antifreeze (ethylene glycol) as a cold weather
lubricant.
Caution
Do not store tools in a cold-weather environment to prevent frost or ice formation on the tools operating
valves and mechanisms, which could cause tool failure. Test tool without fasteners prior to operations to
ensure no malfunction on the tool due to ice formation.
Note
Some commercial air line drying liquids are harmful to O-Rings and seals – do not use these low
temperature air dryers without checking compatibility.
Lubrication
11

Eye Protection
Which conforms to ANSI/ CE specifications and provides protection against flying particles
both from the FRONT and SIDE should ALWAYS be worn by the operator and others in the
work area when connecting to air supply, loading, operating or servicing this tool.
Eye protection is required to guard against flying fasteners and debris, which could cause
severe eye injury.
To Prevent Accidental Injuries
．Never place a hand or any other part of the body in staple discharge area of tool while
the air supply is connected.
．Never point the tool at anyone else.
．Never engage in horseplay.
．Never pull the trigger unless nose is directed at the work.
．Always handle the tool with care.
．Pull the trigger or depress the trip mechanism while loading the tool.
Open the Magazine Nail Length Adjustment Nail Loading Swing Cover Closed
Close the door
Loading the Tool
Pull down door latch and swing
door open. Open the magazine.
The nail support can be moved
up and down to four settings. To
change setting pull up on the
post and twist to the correct step.
The nail support should be
adjusted correctly to the position
indicated in inches and
millimeters inside magazine.
Place a coil of nails over the post
in the magazine. Uncoil enough
nails to reach the feed pawl, and
place the second nail between
the teeth on the feed pawl. The
nail heads fit in slot
on nose.
Check that latch engages. (If it
does not engage, check that the
nail heads are in the slot on the
nose.)
door latch door latch
door
nail support feed pawl
magazine
cover
magazine
door
magazine
cover
Fastener Loading
12

Eye Protection
Which conforms to ANSI/ CE specifications and provides protection against flying particles
both from the FRONT and SIDE should ALWAYS be worn by the operator and others in the
work area when connecting to air supply, loading, operating or servicing this tool. Eye
protection is required to guard against flying fasteners and debris, which could cause
severe eye injury. The employer and/or user must ensure that proper eye protection is
worn. Eye protection equipment must conform to the requirements of the ANSI Z87.1 and
89/686/EEC, and provide both frontal and side protection.
Before Handling or Operating This Tool
Read and understand the warnings contained in this manual.
Refer to “tool specifications” in this manual to identify the operating system on your tool.
The operator must not hold the trigger on contact trip tools except during fastening
operation, as serious injury could result if the trip accidentally contacts someone or something, causing the
tool to cycle.
2. Sequential Trip Operation :
To operate the tool in this manner, first position the contact trip on the work surface, WITHOUT
PULLING THE TRIGGER. Depress the contact trip until the nose touches the work surface and then
pull the trigger to drive a fastener. Do not press the tool against the work with extra force. Instead, allow
the tool to recoil off the work surface to avoid a second unwanted fastener. Remove your finger from
the trigger after each operation
1. Contact Trip Operation (Rapid Fire) :
To operate the tool in this manner, hold the tool with the contact trip pointing towards but not touching
the work surface. Pull the trigger and then tap the contact trip against the work surface using a
bouncing motion. Each depression of the contact trip will cause a fastener to be driven.
Keep hands and body away from the discharge area of the tool. A contact trip tool
may bounce from the recoil of driving a fastener and an unwanted second fastener may be driven, possibly
causing injury.
WARNING
WARNING
There are three available systems on the PN51, PN51B:
Tool Operation
13

3. Remote Fire :
The Remote fire model is cycle by actuation of remote valve (RCVA1) for mounted machine.
Tools must NOT be used in Continuous Bump Fire Operation where changing from
one working position to another involves the use of ladders, stairs or similar structures such as roofs.
WARNING
1. Switchable Trigger Operation :
SINGLE SEQUENTIAL FIRE OPERATION WITH SWITCHABLE TRIGGER
The single sequential fire operation requires the operator to hold the tool against the work with the
safety yoke depressed before pulling the trigger. In order to drive additional fasteners, the trigger must
be released and the tool lifted away from the work, before repeating the above-mentioned steps. This
makes accurate fastener placement easier, for instance on framing, toe nailing and crating applications.
The single sequential fire operation allows exact fastener location without the possibility of driving a
second fastener on recoil, as described under Continuous Bump Fire Operation (below). The single
sequential fire operation has a positive safety advantage because it will not accidentally drive a
fastener if the tool is contacted against the work - or anything else - while the operator is holding the
trigger pulled.
CONTINUOUS BUMP FIRE OPERATION WITH SWITCHABLE TRIGGER
The common operating procedure on “Contact Trip” tools is for the operator to actuate the safety yoke
while keeping the trigger pulled, thus driving a fastener each time the work is contacted. This will allow
rapid fastener placement on many jobs, such as sheathing, decking and pallet assembly. All pneumatic
tools are subject to recoil when driving fasteners. The tool may bounce, releasing the safety yoke and if
unintentionally allowed to re-contact the work surface with the trigger still actuated (finger still holding
the trigger pulled) an unwanted second fastener will be driven.
SELECTING THE OPERATION MODE (As shown below)
To change the operation mode, rotate the switch in the counterclockwise
direction. The switch will lock automatically when the indicating arrow is
pointing to the left (Single Sequential Fire Operation) or the right
(Continuous Bump Fire Operation).
There are three available systems on the SCN51:
Tool Operation
14

Driving Depth Adjustment Dial (SCN51)
1. With air pressure set, drive nails into a representative
material sample to determine if adjustment is necessary.
2. If adjustment is required, disconnect air supply.
3. Refer to the label on the Contact Arm area for direction
to turn the Adjustment dial
4. Reconnect air supply.
ALWAYS discount air supply before Adjustment dial.
WARNING
Shallower
Deeper
Direction of the exhaust air is changed by rotating exhaust cover by hand.
ALWAYS disconnect air supply before rotating the exhaust cover by hand.
WARNING
Directional Exhaust Cover
Tool Operation
15

16
In addition to the other warnings contained in this manual observe the
following for safe operation :
．Use this pneumatic tool only for the purpose for which it was designed.
．Never use this tool in a manner that could cause a fastener to be directed toward the user or others in the
work area.
．Do not use the tool as a hammer.
．Always carry the tool by the handle. Never carry the tool by the air hose.
．Do not carry this tool with the trigger depressed when not in use.
．Do not alter or modify this tool from the original design or function.
．Always be aware that misuse and improper handling of this tool can cause injury to yourself and others.
．Never clamp or tape the trigger or contact trip in an actuated position.
．Never leave a tool unattended with the air hose attached.
．Do not operate this tool if it does not contain a legible WARNING LABEL.
．Do not continue to use a tool that leaks air or does not function properly. Notify your distributor or
representative if your tool continues to experience functional problems.
Remove all fasteners from tool before performing tool operation check.
CAUTION
1. Contact Trip Operation : 2. Sequential Trip Operation :
a. With finger off the trigger, press the contact trip
against the work surface
The tool must not cycle.
b. Hold the tool off the work surface,
and pull the trigger.T NOT CYCLE
The tool must not cycle.
c. With the tool off the work surface, pull the trigger.
Press the contact trip against the work surface.
The tool must cycle.
d. Without touching the trigger, press the contact
trip against the work surface, then pull the trigger.
The tool must cycle.
a. Press the contact trip against the work surface,
without touching the trigger.
The tool must not cycle.
b. Hold the tool off the work surface,
and pull the trigger.CLE
The tool must not cycle.
Release the trigger. The trigger must return to
the trigger stop on the frame.
c. Pull the trigger and press the contact trip
against the work surface.
The tool must cycle.
d. With finger off the trigger, press the contact trip
against the work surface. Pull the trigger
The tool must cycle.
Tool Operation Check

Worn driver causing poor driving quality or loss of power:
Wear or a chip on the driving tip will affect the nail drive, giving symptoms of bent and incompletely driven
nails, and damaged nail heads.
The driver length may be adjusted to allow the driving tip to be redressed to compensate for wear. Heat and
precise measurement are required. Contact a qualified service technician for this adjustment.
The length setting for a new driver is shown below. Measurement is from the bottom face of the main
piston.
Air Pressure and Volume
Air volume is as important as air pressure. The air volume supplied to the tool may be inadequate because
of undersize fittings and hoses, or from the effects of dirt and water in the system. Restricted air flow will
prevent the tool from receiving an adequate volume of air, even though the pressure reading is high. The
results will be slow operation, misfeeds or reduced driving power. Before evaluating tool problems for these
symptoms, trace the air supply from the tool to the supply source for restrictive connectors, swivel fittings,
low points containing water and anything else that would prevent full volume flow of air to the tool.
Driver Maintenance Instructions
WARNING
Replacement Parts
Use only genuine parts from the manufacturer or distributor. Do not use modified parts or parts which will not
give equivalent performance to the original equipment. Tighten all screws. Keep contact arm moving
smoothly.
When working on air tools, note the warnings in this manual and use extra care
evaluating problem tools. Disconnect air supply and empty the magazine when inspecting or maintaining the
tool.
Assembly Procedure for Seals
When repairing a tool, make sure the internal parts are clean and lubricated. Use O-Ring lubricant on all
O-Rings. Coat each O-Ring with O-Ring lubricant before assembling. Use a small amount of oil on all moving
surfaces and pivots. After reassembly add a few drops of Air Tool Lubricant through the air line fitting before
testing.
Maintaining The Pneumatic Tool
17

Troubleshooting / Repairs
The troubleshooting and / or repairs shall be carried out only by the authorized dealer / distributor or by other
pneumatic tool specialists.
Note that the measurement from the top of the piston gives the maximum amount the driver may be
adjusted to allow redressing. Always extend the driver the minimum required to allow redressing to restore
the driving end; several redressings will be possible before this maximum depth is reached.
When using optional flangeless driver, see adjustment below. Be sure to use proper preparation and
installation.
PN51 : 123.3mm~123.7mm (4.854"~4.870")
PN51B : 123.3mm~123.7mm (4.854"~4.870")
SCN51 : 123.3mm~123.7mm (4.854"~4.870")
Standard Length
Driver Maintenance Instructions
18

Note

TOUGHER FASTER SMARTER
Everwin Pneumatic@everwin_official@everwintaiwan
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