Everwin MCN40 User manual

MCN40
Pneumatic Joist Hanger Nailer
OPERATIONS and MAINTENANCE MANUAL
CE DECLARATION OF CONFORMITY
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19’/3/19
Everwin Pneumatic Corp.
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.

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2
INTRODUCTION
The tool is designed for high speed, high volume nailing. 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. NOTE: 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., Taichung City, Taiwan 41353.
INDEX
1-Year Limited Warranty ----------------------------------------------------------------------------------------------------------- 3
CE Declaration of Conformity --------------------------------------------------------------------------------------------------- 4
Safety Instructions ------------------------------------------------------------------------------------------------------------------ 5
Specifications and Technical Data --------------------------------------------------------------------------------------------- 6
Operating Pressure, Setting Correct Pressure ---------------------------------------------------------------------------- 6
Operation ------------------------------------------------------------------------------------------------------------------------------- 7
Air Supply and Connections: Fittings, Hoses, Filters,
Air Consumption, Regulators, Supply source------------------------------------------------------------------------------ 8
Lubrication ----------------------------------------------------------------------------------------------------------------------------- 8
Nail Loading ---------------------------------------------------------------------------------------------------------------------- ----- 9
Nail Unloading ------------------------------------------------------------------------------------------------------------------------ 10
Tool Operation ------------------------------------------------------------------------------------------------------------------------ 11
Tool Operation Check --------------------------------------------------------------------------------------------------------- ------ 13
Maintaining the Pneumatic Tool ------------------------------------------------------------------------------------------- ------ 14
Driver Maintenance Instructions ------------------------------------------------------------------------------------------------ 14
Trouble Shooting / Repairs -------------------------------------------------------------------------------------------------------- 14

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3
1-YEAR LIMITED WARRANTY
(U.S. and Canada Only)
EVERWIN products are designed and manufactured to the highest standards of both material and workmanship.
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
nailer 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.
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT
LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
EVERWIN SHALL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES.
WARRANTY EXCLUSIONS
The following warranty exclusions apply:
a. 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.
b. 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.
c. Labor charges, loss, repairs from improper maintenance and/or usage of non-EVERWIN parts are not covered
by this warranty.
d. 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.
Note: all warranty services will be carried out by EVERWIN authorized repair centers,
please contact [e-mail] for the location most convenient for you.

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4
CE DECLARATION OF CONFORMITY
CE Declaration of conformity ENGLISH
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 ITALIANO
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 DEUTSCH
EVERWIN PNEUMATIC CORP. erklärt hiermit in alleiniger Verantwortung das dieses Gerät ubereinstimmt mit den
Europäischen Richtlinien 2006/42/EC und den Europäischen Norm EN 792-13.
CE Déclaration de conformité FRANCAIS
EVERWIN PNEUMATIC CORP. déclare et prend sur soi toute la responsabilité de cette déclaration, que le produit est
en conformité avec les Directives Européennes 2006/42/EC et avec la norme harmonisée EN 792-13.
CE konformiteitsverklaring NEDERLANDS
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 ESPAGNOL
EVERWIN PNEUMATIC CORP. declaramos bajo nuestra sola responsabilidad que este producto esta en conformidad
con las Directivas Europeas 2006/42/EC y con la normativa EN 792-13.
Overensstemmelseserklæring / CE Deklaration DANSK
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 SVENSK
EVERWIN PNEUMATIC CORP. förklarar härmed att produkten överensstämmer med följande normer och direktiv
2006/42/EC och SS-EN 792-13.
SAMSVARSERKLÆRING / CE Deklaration NORSK
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 FINSK
EVERWIN PNEUMATIC CORP. vakuuttaa täten tuotteen vastaavan seuraavla standardeja ja direktiivejä: 2006/42/EC
ja EN 792-13.
Deklaracja zgodności CE POLSKIE
EVERWIN PNEUMATIC CORP. oświadcza, że produkty opisane w załączonej dokumentacji spełniają wymogi
Dyrektywy Maszynowej 2006/42/EC oraz Europejskiej normy EN 792-13.
Machine Type:
MCN40
Machine Name: Pneumatic Fastener Driving Tool
Place of Issue: No. 7, Wugong 7th Rd., Wufeng Dist., Taichung City 41353, Taiwan.
Date of Issue: Mar. 19, 2019
Signature of Issuer: ______________________
Hung-Ming Chuang
General Manager

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5
SAFETY INSTRUCTIONS
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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.
SAFETY INSTRUCTIONS:
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. NOTE: 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/cm
2
) 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, as accidental
actuation may occur, possibly causing injury.
NAIL 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 unless
nose is directed toward the work; 3.) Keep others a safe distance from the tool while
tool is in
operation 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
bounce
from 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.
MAINTAINING THE TOOL
When working on air tools, note the warnings in this manual and use extra care when evaluating
problem tools.

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6
SPECIFICATIONS AND TECHNICAL DATA
SPECIFICATIONS
HEIGHT 10.8" (275 mm)
WIDTH 3.6" (92 mm)
LENGTH 11.7" (298 mm)
WEIGHT 4.4 lbs. (2.0 kg)
RECOMMENDED OPER. PRESSURE 70 to 120 PSI (5 to 8 bar)
LOADING CAPACITY 33 Nails
AIR CONSUMPTION 3.8 cfm (1.8 liter/sec) at 90 PSI (6 bar) press.
FASTENER SPECIFICATIONS
NAIL LENGTH 1-1/2” ~ 1-9/16”" (38 ~ 40 mm)
COLLATION ANGLE
34 degree
SHANK DIA. 0.131” & 0.148” (3.3 & 3.8 mm)
SHANK TYPE Smooth, Ring, Screw
COLLATION Paper
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.
OPERATING PRESSURE
70 to 120 PSI (5 to 8 kg/cm
2
). Select the operating pressure within this range for best fastener performance. DO
NOT EXCEED THIS RECOMMENDED OPERATING PRESSURE.
TECHNICAL DATA
AIR CONSUMPTION
Tool air consumption: 3.8 cfm (1.8 liter/sec) 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.
NOISE
A-weighted single-event sound power level LWA, 1s,
108.5 dBA
A-weighted single-event emission sound pressure level at work station LpA 1s,d
106.3 dBA
These values are determined and documented in accordance to EN12549.
VIBRATION
Vibration characteristic value=
1.5 m/s
2
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-system hen
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.
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7
OPERATION
Refer to Operation Instructions and warnings on pages before proceeding to use this tool.
THIS TOOL IS EQUIPPED WITH ONE OPERATION MODE
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SEQUENTIAL FIRE OPERATION MECHANISM
The Sequential Fire mechanism gets its name from the “sequence” required to drive a fastener. To drive a fastener,
the operator must first place the tip of the nail into the joist hanger plate hole. Then hold the moveable nose (the
“contact trip”) FULLY against the work surface, then pull the trigger. To drive a second nail the operator must lift the
tool from the work surface, release the trigger then repeat the above sequence.
Sequential fire mechanism : offers a positive safety advantage since it will not accidentally drive a fastener if
the tool is bumped against any surface or anybody while the operator is holding the tools with the trigger pulled.
It allows “place nailing” without the possibility of driving a second, unwanted fastener on recoil.
If trigger system is not operating as described, do not use the tool and contact
your nearest service center.
The operator must NOT hold the trigger pulled except during fastening operation,
as serious injury could result if the contact trip accidentally contacted someone
or something causing the tool to cycle.
Keep hands and body away from the discharge area of the tool.
Never use rafter hook to hang tool from body, clothing or belt.
NOTE: Although this is not the only pneumatic tool we offered that operates sequentially, its
operation is unique from all other tools. The contact trip, is in the “depressed” position at rest to
allow visibility of the nail points used for positive placement. When tip of the nail is placed in the
preformed joist hanger plate hole and the trigger is pulled, the contact trip will move down and
engage the work surface. If the contact trip does not detect the work surface or is not allowed to
stroke to engage trigger, the tool will not actuate.

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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.
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.
HOSES: Air hoses should have a minimum of 150 PSI (10.6 kg/cm
2
) 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 BOTTLED GASES AS A
POWER SOURCE FOR THIS TOOL
AS TOOL MAY EXPLODE.
REGULATOR: A pressure 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 (14 kg/cm
2
) 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.
LUBRICATION
Frequent, but not excessive, lubrication is required for best performance. A i r - t o o l o il
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
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CAUTION:
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NOTE:
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.
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.
Some commercial air line drying liquids are harmful to O-Rings and seals – do
not use these low temperature air dryers without checking compatibility.

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9
NAIL LOADING
EYE PROTECTION which conforms to
A
NSI/ 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. NOTE: Non-side
shielded
spectacles and face shields alone do not provide adequate protection.
TO PREVENT ACCIDENTAL INJURIES:
 Never place a hand or any other part of the body in nail 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.
 Do not pull the tri
gg
er or depress the trip mechanism while loadin
g
the tool.
LOADING THE TOOL:
Nail Loading: Hold nailer with magazine tilted
downward. Insert stick of nails from rear
of magazine.
Slide nails all the way to the front of
magazine.
Engaging Pusher:
Pull pusher towards rear of magazine
beyond the last nail, then release to
engage pusher to strip of nails.
The use of heat treated fasteners is STRONGLY RECOMMENDED when nailing
at an angle into joist hanger plates.

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TRIGGER LOCK MECHANISM
The tool is equipped with a Trigger Lock mechanism. Push and rotate the Trigger Lock Dial to the trigger free position
before driving nails.
DIRECTIONAL EXHAUST COVER
ALWAYS disconnect air supply before rotating the exhaust cover by
hand. 
Direction of the exhaust air is changed by rotating
exhaust cover by hand,

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13
TOOL OPERATION CHECK
CAUTION: Remove all fasteners from tool before performing tool operation check.
SEQUENTIAL FIRE OPERATION:
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.
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 NOT CYCLE.
d. With finger off the trigger, press the contact trip against the work surface. Pull the trigger.
THE TOOL MUST CYCLE.
IN ADDITION TO THE OTHER WARNINGS CONTAINED IN THIS MANUAL OBSERVE THE FOLLOWING FOR
SAFE OPERATION
 Use the this pneumatic tool only for the purpose for which it was designed like pallet, crating, sheathing,
decking applications
 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.

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14
MAINTAINING THE PNEUMATIC TOOL
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.
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.
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.
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
Worn driver causing poor 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.
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
re
- dressings 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.
TROUBLESHOOTING / REPAIRS
The troubleshooting and / or repairs shall be carried out only by the authorized dealer / distributor or by other
pneumatic tool specialists.
4.909” – 4.925”
StandardLength(124.7 – 125.1 mm)