Rev. 03/08/04
775-0232A
3
PLEASE REVIEW ALL WARNING INSTRUCTIONS PRIOR TO OPERATION. SAVE THIS MANUAL FOR FUTURE REFERENCE.
AIR SUPPLY
Tools of this class operate on a wide range
of air pressures. It is recommended that air
pressure of these tools measures 90 PSI at the
tool while running free. Low pressure (under 90
psig; 6.2 bar) reduces the speed of all air tools.
Low air pressure not only wastes time, but also
costs money. Higher pressure (over 90 psig; 6.2 bar)
raises performance beyond the rated capacity of
the tool, which will shorten tool life because of
faster wear and could cause injury.
Always use clean, dry air. Dust, corrosive fumes
and/or water in the air line will cause damage to
the tool. Drain the air tank daily. Clean the air
inlet filter screen on at least a weekly schedule.
The recommended hookup procedure can be
viewed in the above figure.
The air inlet used for connecting air supply, has
standard 1/4" NPT American Thread. Line pressure
should be increased to compensate for unusually
long air hoses (over 25 feet). Minimum hose
diameter should be 3/8" I.D. and fittings should
have the same inside dimensions and be tightly
secured.
LUBRICATION
Lubricate the air motor daily with NAPA air tool
oil. If no air line oiler is used, run a teaspoon of oil
through the tool. The oil can be squirted into the
tool air inlet or into the hose at the nearest con-
nection to the air supply, then run the tool. The
amount of oil to be used is 1 ounce. Overfilling
will cause a reduction in the power of the tool.
OPERATING INSTRUCTIONS
When using the grinder be careful not to exert
excessive force. Too much force could be
hazardous, if it caused the cutting tool spindle to
bend or break.
The burning of the work piece or excessive speed
reduction indicates too much force being applied.
Changing to a free cutting tool may be better for
the desired rate of speed and stock removal.
Avoid hazardous condition by making sure there is
sufficient gripping force on the spindle of the
cutting tool by placing the spindle 7/16" or more
inside the collet.
TROUBLESHOOTING
Other factors outside the tool may cause loss of
power or erratic action. Reduced compressor
output, excessive drain on the air line, moisture or
restrictions in air pipes or the use of hose
connections of improper size or poor conditions
may reduce air supply. Grit or gum deposits in the
tool may cut power and may be corrected by
cleaning the air strainer and flushing out the tool
with gum solvent oil or an equal mixture of SAE #
10 and kerosene. If outside conditions are in order,
and tool continues erratic action or low power,
disconnect tool from hose and contact your
nearest NAPA/EVERCRAFT authorized service center.
INSTRUCTION MANUAL & PARTS BREAKDOWN
Nipple
Admisión
de aire
Summary of Contents for Evercraft 775-0232A
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