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Please read this manual before operating, and understand the warnings and cautions.
The installation, operation and maintenance procedures should be read carefully, and
the manual kept for reference.  Note:  additional safety measures may be required as a 
result of your particular application of the tool.

SAFETY INSTRUCTIONS

Eye protection that conforms to ANSI 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 loading, operating, or servicing this tool.
Eye protection is required to guard against flying fasteners and debris, which could 
cause severe eye injury.  Note:  non-side shielded spectacles and face shields alone
do not provide adequate protection.

Caution: Additional safety precautions will be required in some environments.  For

example, the work area may include exposure to a 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 ANSI approved head
protection.

Air supply and connections

· Do not use oxygen, combustible gases or bottled gasses as a power source for this tool,
as the tool could explode, causing personal injury.
· Do not use supply sources which can potentially exceed 120 PSI, as tool could burst,
causing personal 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 can
drive a fastener even after the air is disconnected, possibly causing injury.
· Always disconnect air supply:  before making adjustments, when servicing the tool,
when clearing a jam, when the tool is not in use, and when moving to a different work
area, as accidental actuation may occur possibly causing an injury.

Loading Tool

When loading the tool:  never place a hand or any part of the body in fastener discharge
area of the tool, never point tool at anyone.  Do not pull the trigger or depress the trip
as an accidental actuation may occur, causing injury.

Operation

· Always handle the tool with care.  Never pull the trigger unless nose is directed toward
the work, 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 contacted someone
or something, causing the tool to fire.
· 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.

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Summary of Contents for IH-HF3N1

Page 1: ...and manual Failure to follow warnings could result in DEATH or SERIOUS INJURY For technical questions or replacement parts please call 1 800 551 2406 Manufactured by 3 in 1 FLOOR NAILER SET UP AND OPERATING INSTRUCTIONS MODEL IH HF3N1 ...

Page 2: ...ersonal injury Do not use supply sources which can potentially exceed 120 PSI as tool could burst causing personal 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 can drive a fastener even after the air is disconnected possibly causing injury Always disconnect air supply ...

Page 3: ... It can be used to install pre finished flooring however caution must be used to ensure that the finish is not damaged by the tool It is recommended that the tool be tested on a sample section to be certain that the technique of use does not leave marks on the finish This procedure should be followed before each job due to variations in flooring and tool condition Air supply and connections Fittin...

Page 4: ...e use of a winter formula air tool lubricant Caution Do not store tools in a cold environment to prevent frost or ice formation on the tool s operating valves and mechanisms that could cause tool failure 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 Loading the Floor Nailer To prevent acciden...

Page 5: ... fitting before testing Air supply pressure and volume Air volume is as important as air pressure The air volume supplied to the tool may be inadequate because of undersized 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 operat...

Page 6: ...le 5 Assemble plunger flush with the end of piston stem To replace piloted valve seals 1 Remove exhaust deflectors and four hex socket head cap screws holding cap to cylinder Remove cap exposing the poppet piston and piloted valve 2 Remove gasket piloted valve seat piloted valve spring and O rings 3 Clean all O ring grooves Lubricate new O rings and assemble 4 After new O rings have been assembled...

Page 7: ...rigger assembly Dirt tar build up on driver Disassemble nose driver to clean Cylinder sleeve not seated Disassemble to correct correctly on bottom bumper Head valve dry Disassemble lubricate Air pressure too low Check air supply equipment Skipping fasteners Worn bumper Replace bumper intermittent feed Tar dirt in driver channel Disassemble and clean nose and driver Air restriction inadequate air R...

Page 8: ...oose magazine nose screws Tighten all screws Broken chipped driver Replace driver Record Product s Serial Number Here Note If product has no serial number record month and year of purchase instead Page 8 Follow all safety precautions whenever diagnosing or servicing the tool Disconnect air supply before service TROUBLESHOOTING PROBLEM POSSIBLE CAUSES LIKELY SOLUTIONS ...

Page 9: ...thereto PART PART 1 Whack cap 34 Snap retainer 2 Bolt M5 20 35 Spring pin 3 O ring 25 3 55 36 O ring 1 7 2 4 Air deflector 37 Latch 5 Bolt M4 16 38 Pin 6 O ring 46 2 3 55 39 Spring 7 Piston seat 40 Pusher seat shelf 8 Gun body 41 Driver guide strip 9 O ring 15 6 1 8 42 Magazine 10 Sealing nut 43 Pin 11 O ring 12 8 1 8 44 Pusher seat shelf 12 O ring 34 5 2 65 45 Spring 13 Piston sleeve 46 Right pus...

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