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7
Employer must enforce compliance with the safety warnings
and all other instructions contained in this manual.
Keep this manual available for use by all people assigned to use this tool.
For personal safety and proper operation of this tool, read and understand
tool labels and manual. Failure to follow warnings could result in DEATH or
SERIOUS INJURY. Read and follow all of these instructions carefully.
FOREWORD
Porter-Cable Model FN250A is a heavy duty pneumatic finish nailer. It is
designed to install 16 ga. finish nails of various lengths (from
3
/4" to 2-
1
/2"
long).
Fastener Guide (furnished with FN250A) must be
used when driving fasteners that are less than 1-
1
/2" long (see
FASTENER GUIDE Section of this manual). Use approved Porter-
Cable fasteners only.
POWER SOURCE
This tool is designed to operate on clean, dry, compressed air at regulated
pressures between 70 and 120 PSI (Pounds per Square Inch)
(4.8 to 8.3 BAR)
.
The preferred system would include a filter, a pressure regulator, and an
automatic oiler located as close to the tool as possible, within 15 ft/4.6 m is
ideal.
All compressed air contains moisture and other contaminates that are
detrimental to internal components of the tool. An air line filter will remove
most of these contaminates and significantly prolong the life of the tool. If an
in-line oiler is not available: place five or six drops of Porter-Cable Air Tool Oil
into the tool’s air inlet at the beginning of each workday.
The tool is equipped with a
1
/
4" male “quick connector”. A
3
/
8" male “quick
connector” is available from Porter-Cable and may be used in situations where
a
1
/
4" supply line is not available. A
3
/
8" supply line (and fittings) are required for
maximum tool performance. The tool must always be connected to the air
supply with a coupling such that all pressure is removed from the tool when the
coupling is disconnected.
All air line components (hoses, connectors, filters, regulators,
etc.) must have a minimum working pressure rating of at least 150 PSI
(10.3 BAR) or 150% of maximum system potential, whichever is
greater
.
Do not connect tool to pressure which potentially exceeds 200 PSI
(13.7 BAR).
Only connect tool to air supply hose with a coupling that
automatically removes all pressure from the tool when the coupling
is disconnected.
Disconnect tool from air supply before performing maintenance,
clearing a jammed fastener, leaving work area, moving tool to
another location, or handing the tool to another person.
PREPARING THE TOOL
1. After reading and understanding this entire manual, connect tool to
air supply (Fig. 18).
EMPLOYER’S RESPONSIBILITIES
FUNCTIONAL DESCRIPTION