Matco Tools MT2250 Instructions De Fonctionnement page 3

OPeraTIOn
This tool is an impacting tool and not a torque meter. When specific torque is
required, it must be checked with a torque meter after fitting the fastener with
the Impact.
If a fastener does not move within five seconds, use a larger size Impact. Do
not use Impact Wrench beyond rated capacity, as this can drastically reduce
the tool life.
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.
FEATURES
• Matco exclusive cushioned grip provides superior comfort.
• High efficiency 7 vane motor provides class leading torque.
• One hand forward/reverse lever accommodates both left and right handed users.
• 3 stage power regulator dial behind trigger.
• True tip valve variable speed design.
• Lightweight composite housing makes this tool easier to work with for extended periods of time.
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 the 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 FIG. 1.
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 3/8" 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.
Whip Hose
Do Not Install
Quick Coupling Nipple
Here
Leader Quick Coupler
Hose
MT2250
MT2250 1/2" IMPACT WRENCH
Air Supply
Filter
Nipple
Oiler Regulator
Drain Daily
NOTE: Actual torque on a fastener is directly related to joint hardness, tool
speed, condition of socket and the time the tool is allowed to impact.
Use the simplest possible tool-to-socket hook up. Every connection absorbs
energy and reduces power.
NOTE: During operation, safety goggles must always be worn to guard
against flying rust and chips (users and 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
nearest authorized service center.
luBrIcaTIOn & MaInTenance
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.
fIg. 1
3
aIr InleT
fIg. 2
rev. 1/7/15