Do not use oxygen, combustible gases, or bottled gases as a power source for this tool as
tool may explode, 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.
The air supply system must be capable of maintaining the required air pressure at the tool
when it is operated at its highest cycle speed. Inadequate air supply will result in a loss
of power and inconsistent driving after the first cycle when the tool is operated in high
speed bursts.
Always attach a male free-flow connector plug to the plier. If a wrong fitting is used, the tool can remain
charged with air after disconnecting, and thus will be able to cycle even after the air line is unplugged.
NOTE: Air compressors used to supply compressed air to this plier should comply with the
requirements of the American National Standards Institute Standard B19.3, Safety Standard for
Compressors for Process Industries.
NOTE: Make sure air lines and fittings are clean before connecting.
SETTING THE CORRECT PRESSURE:
The air requirements will vary, depending on the material to be stapled and the staple size. Do not use more
air pressure than is required to drive the staple in the specific job. To determine best setting, start at low
pressure and increase pressure until drive is satisfactory. Using excess pressure increases tool wear on the
plier and wastes compressed air.
REGULATORS:
Most air supply equipment will produce pressures that exceed the P51's maximum operating pressure, 55 p.s.i.
(3.9 kg/cm
2
). A pressure regulator is required to control the operating pressure. The flow capacity must be
sufficient for the air usage at the installation.
HOSES:
Air supply hoses should have a 150 p.s.i. (10.6 kg/cm
pressure that could be produced in the air system.)
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 clogged filter will cause a
pressure drop which will reduce the tool's performance.
Frequent, but not excessive, lubrication is required for best performance. Oil added through the air line
connection will lubricate the internal parts. Use BOSTITCH Air Tool Lubricant, Mobil Velocite #10, or
equivalent. 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 BOSTITCH WINTER FORMULA air tool lubricant or 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 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.
AIR SUPPLY AND CONNECTIONS
2
) working pressure rating (or 150 percent of the maximum
-5-
LUBRICATION