Cutting Metals; Transportation And Storage; Maintenance - Craftsman CMCM300 Instruction Manual

20v max* 3 inch cutoff tool
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2. Reverse (clockwise rotation) — Located on the left side
of the tool near the variable speed trigger 
forward/reverse/lock off button 
to Fig. K2. The reverse direction of the wheel is also noted
by the direction indicator 
guard 
 11 
.Refer to Fig. A.
3. The center position of the forward/reverse/lock off
button locks the tool in the off position. When locked the
variable speed trigger cannot be depressed.
nOTE: Keep the button in the center locked position when
the tool is not in use or when being transported.
To Operate (Fig. A, H)

CAUTION: Before attempting to start, grasp
tool firmly.

WARNING: To reduce the risk of injury, DO NOT use a
toothed blade.

WARNING: This tool is intended to be used dry.
If water cooling is necessary, use a spray bottle
with clean water to lightly wet surface only, avoid
over‑wetting the workpiece. NEVER immerse your tool
or battery pack in any liquid or allow liquid inside them.

WARNING: Wheels used for cutting may break or kick
back if they bend or twist while the tool is being used to
do cut‑off work.

WARNING: Do not bang or bump a cut‑off wheel
when starting or during a cut.
1. Grasp main handle 
 3 
2. Line up wheel 
 with material to be cut. Be sure
 18 
nothing is near or in line with the wheel.
3. Depress and hold the variable speed trigger 
feed the wheel into the workpiece with firm even
pressure, allowing the tool to do the work. Do not force
the cut off tool through the workpiece. Forcing a cut off
tool can cause kickback. For maximum efficiency and
wheel life, keep the wheel speed high.
4. While cutting, if using the shoe, keep the shoe against
the workpiece and maintain a firm grip.
nOTE: If making a partial cut, restarting a cut, or
correcting cut direction, allow the wheels to come to
a complete stop. To resume cutting, pull the variable
speed trigger and re-enter the cut slowly.
5. To stop tool, release the variable speed trigger.
General Tips for Cutting Materials
For best control, user cutting direction should be
opposite wheel rotation. Example: When making a
cut away from user by pushing the tool forward, set
wheel rotation to reverse/clockwise direction.
Be sure that the wheel is at full speed before
continuing a cut.
Allow the wheel to come to a complete stop before
raising the wheel out of the material.
Cutting Tile
To reduce overheating of cutting wheel or
workpiece, user may lightly wet surface.
14
 4 
, push the
 5 
to the far right. Refer
 7 
located on the rotatable
 firmly.
 4 
If excessive chipping of the tile is observed, user may
operate tool at slower speed using variable speed
trigger to achieve a cleaner cut.
Cutting tile will generate debris. Guard position may
be adjusted to deflect debris away from user.
Cutting Plastic
Take frequent breaks to allow wheel to cool down.
If melted material or debris becomes adhered to
blade, shoe or guard: Release trigger. Allow unit to
rest and material to cool. Remove battery. Remove
debris. Ensure all areas around wheel including inside
of guard is clear of debris. Resume cutting operation.

Cutting Metals

Observe the following to avoid potential hazards when
cutting metals.
During and shortly after cutting operation the
material, wheel and metal components on the tool
such as gearcase, guard and shoe may get hot.
Allow these areas to cool before touching to
avoid injury.
Cutting metal will generate sparks. Guard position
may be adjusted to deflect sparks and debris away
from user.
Cutting material and cutting wheel may have sharp
or jagged edges after cutting operation. Wear gloves
and use caution when touching these areas.

Transportation and Storage

During transportation and storage lock the variable speed
trigger with the lock-off button. Refer to the Forward/
. Slowly
Reverse/Lock Off Button section.
Remove the battery pack during the tool storage.

MAINTENANCE


WARNING: To reduce the risk of serious personal
injury, turn unit off and remove the battery pack
before making any adjustments or removing/
installing attachments or accessories. An
accidental start‑up can cause injury.
Your CRAFTSMAN power tool has been designed to operate
over a long period of time with a minimum of maintenance.
Continuous satisfactory operation depends upon proper tool
care and regular cleaning.
Accessories

WARNING: Since accessories, other than those
offered by CRAFTSMAN, have not been tested with
this product, use of such accessories with this product
could be hazardous. To reduce the risk of injury, only
CRAFTSMAN recommended accessories should be used
with this product.

WARNING: Handle and store all abrasive wheels
carefully to prevent damage from thermal shock, heat,
mechanical damage, etc. Store in a dry protected area
free from high humidity, freezing temperatures or
extreme temperature changes.

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