AS726M
4
11/13/14
Nipple
AIR SUPPLY
Tools operate on a wide range of air pressures. It is recommended
that air pressure measures 90 psig at the tool with the trigger fully
depressed and no load applied to the tool. Higher pressure (over
90 psig; 6.2 bar) raises performance beyond the rated capacity of the
tool, which will shorten tool life 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 water from air lines
and compressor prior to running tool. Clean the air inlet filter screen
weekly. The recommended hookup procedure can be viewed in the
above figure.
The air inlet used for connecting air supply has standard 1/4" NPT.
Line pressure should be increased to compensate for unusually long
air hoses (over 25 feet). Minimum hose diameter should be 5/16"
I.D. and fittings should have the same inside dimensions and be
tightly secured.
Ensure an accessible emergency shut off valve has been installed in
the air supply line and make others aware of its location.
LUBRICATION
Lubricate the air motor daily with high quality air tool oil. If no air line
oiler is used, run 1/2 oz. of oil through the tool. The oil can be squirted
into the tool air inlet or into the hose at the nearest connection to the
air supply, then run the tool. A rust inhibitive oil is acceptable for air
tools.
WARNING: After an air tool has been lubricated, oil will discharge
through the exhaust port during the first few seconds of operation. The
exhaust port must be covered with a towel before applying air pressure
to prevent serious injury.
OPERATION
Always turn off the air supply, drain hose of air pressure and detach
tool from air supply before installing, removing or adjusting any part
or accessory on this tool, or before performing any maintenance on
this tool.
Speed adjustment is achieved through variable pressure on
the trigger.
Increasing the pressure will increase the speed of the blade.
To Change Blades:
1. Detach from air supply.
2. Loosen #24 Set Screws with #27 wrench.
3. Remove old blade and insert new blade into #25 blade
holder, and tighten #24 set screws.
NOTE: During operation, safety goggles should always be worn to
guard against flying rust and chips (users & bystanders).
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, disconnect tool from hose and take tool to your Mac Tools
Distributor for repair.
Operating Instructions • Warning Information • Parts Breakdown
