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WARNING: NEVER use an abrasive wheel,
cutting wheel, or any wheel greater than 1”
in diameter. Using such wheels can result in
wheel breakage, and will otherwise increase
the risk of bodily injury from contact with the
wheel or wheel fragments.
APPLICATIONS
• Finishing of dies for press working, die cast-
ing and moulding.
• Finishing of thread cutting dies, tools and
other small parts.
• Internal grinding of tools and machine parts.
WARNING: To avoid the risk of serious
injury, NEVER use this grinder with abrasive
wheels, cut-off wheels and/or saw blades.
ASSEMBLY & OPERATION
1. Switching operation When throwing the
switch lever to the ON side, power is applied;
when throwing it to the OFF side, power is
switched off.
2. After installing a new wheel, “test” the con-
dition of the wheel by allowing the grinder
to operate for 180 seconds while the wheel is
pointed away from you. Keep your hands and
body away from the wheel at all times.
3. Precautions on operation (1) Lightly press
the wheel to the material to be ground when
grinding materials, high -speed revolution is
necessary. Use a hand grinder with high-speed
revolution, minimizing the pressing force.
4. Dressing the wheel After attaching a wheel,
adjust deflection of the wheel center by us-
ing a dresser. If the wheel center is eccentric,
not only precise finishing cannot be achieved
but also grinder vibration increases, lowering
grinder accuracy and durability. A clogged or
worn wheel will soil the finishing surface or
lower grinding efficiency. Occasionally dress
the wheel by applying the dresser.
5. Service and repairs All quality power tools
will eventually require servicing or replace-
ment of parts because of wear from normal
use. To assure that only authorized replace-
ment parts will be used, all service and repairs
must be performed by a URREA AUTHORIZED
SERVICE CENTER, ONLY.
CAUTION: Repair,modification and inspec-
tion of URREA Power Tools must be carried out
by a URREA Authorized Service Center. This
Parts List will be helpful if presented with the
tool to the URREA Authorized Service Center
when requesting repair or other maintenance.
In the operation and maintenance of power
tools, the safety regulations and standards
prescribed in each country must be observed.
PRIOR TO OPERATION
1. Power source: Ensure that the power source
to be utilized comply to the power source re-
quirements specified on the product name-
plate.
2. Power switch Ensure that the switch is in the
OFF position. If the plug is connected to a re-
ceptacle while the switch is in the ON position,
the power tool will start operating immediate-
ly and can cause serious injury.
3. Extension cord When the work area is far
away from the power source, use an extension
cord of sufficient thickness and rated capacity.
The extension cord should be kept as short as
practicable.
WARNING: Damaged cord must be re-
placed or repaired.
4. Check the receptacle If the receptacle only
loosely accepts the plug, the receptacle must
be repaired. Contact a licensed electrician to
make appropriate repairs. If such a faulty re-
ceptacle is used, it may cause overheating, re-
sulting in a serious hazard.
5. Check the work site and surrounding area Be
sure that the work area has been thoroughly
checked and prepared to avoid any unsafe
conditions. Review the SAFETY section of this
manual.
INSTALLING A WHEEL
WARNING: USING A WRONG SIZED WHEEL
CAN CAUSE WHEEL BREAKAGE AND RESULT-
ING IN SERIOUS INJURY.
In order to avoid this hazard, refer to the fol-
lowing illustration to determine the proper
dimensions(s) of your wheel. Some guidelines:
a) Dimension should always be less than 1/2”
(13 mm). Longer lengths can result in excess
vibration, wheel breakage, and the chance for
serious injury.
b) When dimension D is 1/4”(6.35 mm),the di-
ameter of the wheel (dimension D) should be
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