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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.
Bonded abrasive mounted point grinding wheels, rotary files
and carbide burrs can be mounted providing their speed rating
exceeds the speed of the Die Grinder. The shank size of the
mounted accessory must match the collet size fitted in the Die
Grinder. Insert the shank of the mounted point as far as possible
into the collet and tighten the nut using the supplied wrenches.
Minimum shank gripping length must be 10mm.
After mounting a new point, start the Die Grinder under
bench and run for a few seconds. If the Die Grinder starts to
vibrate when first fitting a mounted point or during operation,
immediately remove from service. If Die Grinder is dropped,
FEATURES
• Crafted for comfort. Low vibration design allows for use over extended periods of time.
• Safety first. Comfortable safety lever throttle prevents accidental start-ups
• Extra torque and extended durability. Achieve high performance with a .75 HP motor.
• Ultimate control. Regulator knob easily controls speed and power output.
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
MT4880, -G, -O
MT4880, -G, O
Filter
Nipple
Oiler
Regulator
.75 HP STRAIGHT DIE GRINDER
replace bonded abrasive mounted point grinding wheel, rotary
file or carbide burr.
When using the Die Grinder, be careful not to exert excessive
force which could be hazardous and cause mounted spindle to
bend or break.
NOTE: During operation, safety goggles should always be
worn to guard against flying debris (users and bystanders).
NOTE:
Correct bonded abrasive mounted point grinding wheels, rotary
files and carbide burrs are necessary to prevent injury from broken
accessories. Do not use chipped or cracked bonded abrasive mounted
point grinding wheels, rotary files and carbide burrs. Tighten the
bonded abrasive mounted point grinding wheels, rotary files and
carbide burrs on the collet to prevent spin off when the Die Grinder
is turned off.
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 AND 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.
FORWARD/REVERSE
Air Supply
Drain Daily
FIG. 1
3
AIR INLET
TRIGGER
Rev. 09/28/18
FIG. 2
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