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• RPM OF THE ACCESSORY MUST EXCEED TOOL RPM. Use
accessories rated at 11,000 RPM or higher.
• Never mount a cut off wheel, router cutter or drill bit on
Grinder.
• Do not lock, tape or wire the "on/off" safety lever in the
"on" position, as the lever must be free to return to the "off"
position when released.
• Daily measure the Grinder speed with a tachometer to make
sure its not greater than the RPM marked on the grinding wheel .
NEVER USE A GRINDING WHEEL MARKED WITH A HIGHER
SPEED LOWER THAN THE GRINDER SPEED.
• Always use the required wheel guard to prevent injury from
broken grinding wheel parts . If a guard has withstood a wheel
breakage, discontinue its use and replace it with a new guard,
as it could be damaged . Position the guard between the grinding
wheel and the operator . Use barriers to protect others from wheel
fragments and grinding sparks .
• Failure to heed these warnings may result in personal injury and/
or property damage .
WARNING: This product can expose you to chemicals
including phthalates, which is known to the State
of California to cause cancer and birth defects or
other reproductive harm. For more information go to
www.P65Warnings.ca.gov.
Service
• Tool service must be performed only by the MATCO authorized
service centers listed . Service or maintenance performed by
unqualified personnel may result in a risk of injury . Repair by
OPERATING INSTRUCTION
Installing Or Removing Battery Pack
1 . Your new battery pack is not fully charged . You may need to
charge before use .
2 . Make sure the forward/reverse lever is in the neutral position
when installing or removing a battery .
3 . To remove a battery, depress the front tab and pull the
battery forward and the tool in the opposite direction .
4 . To install a battery align the tool with the battery, place the
front of the tool about halfway up the battery, push forward
until click is heard indicating full installment .
Charging The Battery Pack
1 . Battery may not charge when it is above a certain preset
temperature limit . Allow temperature of battery to cool before
charging .
2 . The charge process will take less than one hour .
3 . After charging, unplug the charger from the power source
and stow away in a safe place .
Tool Operation and Maintenance Instructions
Correct grinding wheel mounting is necessary to prevent injury
from broken wheels . Do not use chipped or cracked grinding
wheels . Grinding wheels should be a free fit on the spindle to
prevent stress at the hole . Use only wheel collars that come
with the Grinder for mounting the griding wheel . Flat washers
or other adapters may over stress the wheel . Always use heavy
paper blotter discs between the wheel collar and the grinding
wheel . Tighten the wheel on the spindle to prevent spin off
when the Grinder is turned off .
MCL20G
MCL20G 20V
+
BRUSHLESS 41/2" ANGLE GRINDER
unqualified personnel, use of unauthorized parts, and failure to
follow maintenance instructions may create a risk of shock or
injury .
SAVE THESE INSTRUCTIONS!
SPECIFIC SAFETY RULES
DO NOT let comfort or familiarity with product replace strict
adherence to cordless product safety rules. If you use this tool
unsafely or incorrectly, you can suffer serious personal injury.
• Hold tool by insulated gripping surfaces when performing an
operation where the accessories may contact hidden wiring .
Contact with a "live" wire will also make exposed metal parts of
the tool "live" and shock the operator .
• Be aware that this tool is always in operating condition, because it
does not have to be plugged into an electrical outlet .
• Always be sure you have firm footing .
• Be sure no one is below when using the tool in high locations .
• Hold the tool firmly and use both hands .
• Do not leave the tool running . Do not force tool to stay in the "on"
position . Operate the tool only when hand-held .
• Some material contains chemicals which may be toxic . Take
caution to prevent working dust inhalation and skin contact . Follow
material supplier safety data .
WARNING:
MISUSE or failure to follow the safety rules stated in this
instruction manual may cause serious personal injury.
Never mount a cut off wheel, router cutter or drill bit on
Grinder.
Daily measure the Grinder speed with a tachometer to make
sure its not greater than the RPM marked on the grinding wheel .
NEVER USE A GRINDING WHEEL MARKED WITH A HIGHER
SPEED LOWER THAN THE GRINDER SPEED.
Always use the required wheel guard to prevent injury from
broken grinding wheel parts . If a guard has withstood a wheel
breakage, discontinue its use and replace it with a new guard,
as it could be damaged . Position the guard between the
grinding wheel and the operator . Use barriers to protect others
from wheel fragments and grinding sparks .
NOTE: During operation, safety goggles should always be
worn to guard against flying debris (users and bystanders).
How to use MCL2040LB with 20V
(released in 2019)
20V
+
BRUSHLESS Matco tools will function normally when
using the MCL2040LB battery . Since the connection styles
are different it is required to utilize the adapter MCL20BADP .
Connect the adapter to the BRUSHLESS tool then slide the
MCL2040LB battery in place until a click is heard and the
release buttons locks into place .
FAQ
Question: Can I use the adapter (MCL20BADP) connected to the
MCL2040LB battery and charge it on the MCLCHRG6?
Answer: No . The adapter does not have the proper circuitry
to allow it to be used to charge the battery . To charge the
MCL2040LB remove the adapter and utilize the MCLCHRG5 or
MCL1840CHRG .
3
+
Brushless Tools
rev. 02/22/19
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