Milwaukee 6149-59 Manual De Instrucciones página 15

5. Place the selected wheel on the spindle and align
it with the fl ange.
6. Position the fl ange nut over the spindle according
to wheel thickness.
7. Press in the spindle lock button while turning the
fl ange nut clockwise. Tighten securely using a
spanner wrench.
8. To remove wheel, unplug the tool and reverse
the procedure.
WARNING
To reduce the risk of injury,
always unplug tool before attaching or remov-
ing accessories or making adjustments. Use
only specifi cally recommended accessories.
Others may be hazardous.
WARNING
To reduce the risk of injury,
wear safety goggles or glasses with side shields.
Controlled Start (6117-59 and 6117-59A only)
The controlled start feature reduces the torque
reaction "jerk" when its trigger is pulled.
Constant Speed Tachometer (6117-59 and 6117-
59A only)
The constant speed tachometer keeps the tool's
revolutions per minute at an almost constant
speed even under load. The tachometer also helps
prevent tool overheating. The tool switches itself
off automatically when the motor is overloaded. If
this happens, release the trigger to reset. Pull the
trigger and continue work.
Slide Switch Operation
To start the tool, grasp the handle and side handle
fi rmly and slide the switch to ON.
To stop the tool, release the switch. Make sure
the tool comes to a complete stop before laying
the tool down.
To lock-on the switch, slide the switch to ON and
press down on the front of the switch. To stop the
tool, press and release the switch. Make sure the
tool comes to a complete stop before laying it down.
To vary the speed (6117-59 and 6117-59A only),
set the speed dial from "1" (2,800 RPM) to "6"
(11,000 RPM).
Fig. 4
Flange nut
position for
1/8" thick or less wheels
Flange nut
position for
1/4" thick or more wheels
OPERATION
General Operation
1. If you have just installed an accessory or are
beginning a period of work, test it by letting it
spin for one minute before applying it to the
workpiece. Out-of-balance or damaged acces-
sories can mar workpiece, damage the tool, and
cause stress that may cause accessory failure.
2. Use a clamp, vise or other practical means to
hold your work, freeing both hands to control
the tool.
3. Hold tool securely with both hands.
4. Start the tool.
Note: On some models, if the tool is plugged in
when the tool switch is in the "ON" position, the
tool will not run. Turn the tool off, then back on
to begin work.
5. Allow accessory to come to full speed before
beginning work.
6. Control pressure and surface contact between
accessory and workpiece. Too much pressure
slows speed.
7. When fi nished, turn off the tool and make sure it
comes to a complete stop before laying it down.
28
1/8" USING GRINDING WHEELS
WARNING
To reduce the risk of injury,
the operator should be instructed in the use,
1/4" care and protection of grinding wheels.
Grinding Wheel Selection
Use grinding wheels, and accessories that are:
• correct size as written on tool's nameplate.
• rated at or above the RPM listed on the tool's
nameplate.
• correct accessory, wheel type and grit for the job.
Grinding is the cutting action of thousands of abra-
sive grains on the face of a grinding wheel. When
grinding metals such as steel and iron, choose an
aluminum oxide grinding wheel. Select a silicon
carbide grinding wheel for stone and concrete. Use
cotton reinforced wheels for non-ferrous metals.
Type 27 Reinforced 1/8" thick or less Cut-Off
Wheels are suited for small cut-off and shallow
notching operations only. Always handle wheels
carefully to avoid damage. Before installing any
wheel, always inspect it for cracks. If wheel is
cracked, discard it to prevent others from using it.
Care of Grinding & Cut-Off Wheels
Grinding/cut-off wheels should be protected from:
• wetness and extreme humidity
• any type of solvent
• extreme changes in temperature
• dropping and bumping
Grinding and cut-off wheels should be stored:
• in an organized way so wheels can be removed
without disturbing or damaging other wheels
• with their safety information
Grinding and cut-off wheels should NOT be
dropped, rolled or bumped.
Discard wheels that have been dropped, rolled,
bumped, subjected to extreme changes in tempera-
ture, or come into contact with solvents or wetness.
Grinding
When grinding, hold tool at a 5
constant pressure for a uniform fi nish. Too great an
angle causes concentrated pressure on small areas
which may gouge or burn work surface.
Fig. 5
For best result use only this portion of disc
USING CUT-OFF WHEELS
WARNING
installed when using a cut-off wheel to provide
maximum protection for the operator if the
wheel should break.
Type "1" Cut-Off Wheels are suited for small cut-off
and shallow notching operations only.
When using a cut-off wheel, hold the tool as shown,
using only the edge of the wheel.
Fig. 6
WARNING
Wheel (as in grinding) will cause the Wheel
to crack and break, resulting in serious per-
sonal injury.
o to 15 o angle, using
Hold at a Hold at a
5° to 15° angle 5° to 15° angle
29
A Type "1" guard must be
Using the face of a Cut-Off