Maintenance; Register Online - Craftsman CMCH234 Instruction Manual

Drilling in Metal
A SDS PLUS to round shank adaptor chuck is required.
Ensure that tool is in Rotary Drilling mode. Start drilling with
slow speed and increase to full power while applying firm
pressure on the tool. A smooth even flow of metal chips
indicates the proper drilling rate. Use a cutting lubricant
when drilling metals. The exceptions are cast iron and brass
which should be drilled dry.
nOTE: Large (5/16" to 1/2" [7.9 mm to 12.7 mm]) holes
in steel can be made easier if a pilot hole (5/32" to 3/16"
[4 mm to 4.8 mm]) is drilled first.
Drilling in Wood
A SDS PLUS to round shank adaptor chuck is required.
Ensure that tool is in Rotary Drilling mode. Start drilling with
slow speed and increase to full power while applying firm
pressure on the tool. Holes in wood can be made with the
same twist drills used for metal. These bits may overheat
unless pulled out frequently to clear chips from the flutes.
For larger holes, use spade bits, power auger bits, or hole
saws. Work that is apt to splinter should be backed up with
a block of wood.
Drilling in Masonry
When drilling in masonry, use carbide-tipped bits rated for
percussion drilling and be certain that the bits are sharp.
Use a constant and firm force on the tool to drill most
effectively. A smooth, even flow of dust indicates the proper
drilling rate.
Recommendations for Tool Operation
• When drilling, always apply pressure in a straight line
with the bit, but do not push hard enough to stall the
motor or deflect the bit. A smooth even flow of material
indicates the proper drilling rate.
Chipping and Chiselling (Fig. A, J)
1. Press the mode selector release button
mode selector dial 6
2. Insert the appropriate chisel and rotate it by hand to
lock it into one of 51 positions.
3. Adjust the side handle
4. Switch on the tool and start working.
5. Always switch off the tool when work is finished and
before removing the battery pack.

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.
7 and rotate the
to the "Hammering only" symbol.
3 as required.
Cleaning

WARNING: Blow dirt and dust out of all air vents with
clean, dry air at least once a week. To minimize the risk
of eye injury, always wear ANSI Z87.1 approved eye
protection when performing this procedure.

WARNING: Never use solvents or other harsh
chemicals for cleaning the non-metallic parts of the
tool. These chemicals may weaken the plastic materials
used in these parts. Use a cloth dampened only with
water and mild soap. Never let any liquid get inside the
tool; never immerse any part of the tool into a liquid.
Accessories

WARNING: Since accessories, other than those
offered by CRAFTSMAN, have not been tested with
this product, use of such accessories with this tool
could be hazardous. To reduce the risk of injury, only
CRAFTSMAN recommended accessories should be used
with this product.
Recommended accessories for use with your tool
are available at extra cost from your local dealer or
authorized service center. If you need assistance in
locating any accessory, please contact CRAFTSMAN call
1‑888‑331‑4569.
Repairs
The charger and battery pack are not serviceable. There are
no serviceable parts inside the charger or battery pack.

WARNING: To assure product SAFETY and RELIABILITY,
repairs, maintenance and adjustment (including brush
inspection and replacement, when applicable) should
be performed by a CRAFTSMAN factory service center
or a CRAFTSMAN authorized service center. Always use
identical replacement parts.

Register Online

Thank you for your purchase. Register your product now for:
• WARRAnTY sERViCE: Registering your product will
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there is a problem with your product.
• COnFiRMATiOn OF OWnERshiP: In case of
an insurance loss, such as fire, flood or theft, your
registration of ownership will serve as your proof
of purchase.
• FOR YOUR sAFETY: Registering your product will
allow us to contact you in the unlikely event a safety
notification is required under the Federal Consumer
Safety Act.
• Register online at www.craftsman.com/registration
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