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SPECIFIC SAFETY RULES FOR
ROTARY HAMMERS
Safety instructions for all operations:
• Wear ear protectors. Exposure to noise can cause
hearing loss.
• Use auxiliary handle(s), if supplied with the tool.
Loss of control can cause personal injury.
• Brace the tool properly before use. This tool
produces a high output torque and without properly
bracing the tool during operation, loss of control may
occur resulting in personal injury.
• Hold the power tool by insulated gripping sur-
faces, when performing an operation where the
cutting accessory may contact hidden wiring
or its own cord. Cutting accessory contacting a
"live" wire may make exposed metal parts of the
power tool "live" and could give the operator an
electric shock.
Safety instructions when using long drill bits with
rotary hammers:
• Always start drilling at low speed and with the
bit tip in contact with the workpiece. At higher
speeds, the bit is likely to bend if allowed to rotate
freely without contacting the workpiece, resulting
in personal injury.
• Apply pressure only in direct line with the bit
and do not apply excessive pressure. Bits can
bend, causing breakage or loss of control, resulting
in personal injury.
• Keep hands away from all cutting edges and
moving parts.
• Cut embedded rebar only if this operation does
not affect the integrity of the building. If in doubt,
consult a structural engineer. Tool operator fully
responsible for adverse structural effects.
•
To reduce the risk of injury, when
WARNING
working in dusty situations, wear
appropriate respiratory protection or use an OSHA
compliant dust extraction solution.
• Always use common sense and be cautious when
using tools. It is not possible to anticipate every
situation that could result in a dangerous outcome.
Do not use this tool if you do not understand these
operating instructions or you feel the work is beyond
your capability; contact Milwaukee Tool or a trained
professional for additional information or training.
• Maintain labels and nameplates. These carry
important information. If unreadable or missing,
contact a MILWAUKEE service facility for a free
replacement.
•
Some dust created by power sanding,
WARNING
sawing, grinding, drilling, and other
construction activities contains chemicals known to
cause cancer, birth defects or other reproductive
harm. Some examples of these chemicals are:
• lead from lead-based paint
• crystalline silica from bricks and cement and other
masonry products, and
• arsenic and chromium from chemically-treated
lumber.
Your risk from these exposures varies, depending on
how often you do this type of work. To reduce your
exposure to these chemicals: work in a well ventilated
area, and work with approved safety equipment, such
as those dust masks that are specially designed to
filter out microscopic particles.
EXTENSION CORDS
Grounded tools require a three wire extension
cord. Double insulated tools can use either a two
or three wire extension cord. As the distance from
the supply outlet increases, you must use a heavier
gauge extension cord. Using extension cords with
inadequately sized wire causes a serious drop in
voltage, resulting in loss of power and possible tool
damage. Refer to the table shown to determine the
required minimum wire size.
The smaller the gauge number of the wire, the greater
the capacity of the cord. For example, a 14 gauge
cord can carry a higher current than a 16 gauge cord.
When using more than one extension cord to make
up the total length, be sure each cord contains at
least the minimum wire size required. If you are using
one extension cord for more than one tool, add the
nameplate amperes and use the sum to determine
the required minimum wire size.
Guidelines for Using Extension Cords
• If you are using an extension cord outdoors, be sure
it is marked with the suffix "W-A" ("W" in Canada) to
indicate that it is acceptable for outdoor use.
• Be sure your extension cord is properly wired and in
good electrical condition. Always replace a damaged
extension cord or have it repaired by a qualified
person before using it.
• Protect your extension cords from sharp objects,
excessive heat and damp or wet areas.
Recommended Minimum Wire Gauge
For Extension Cords*
Nameplate
Amps
0 - 2.0
2.1 - 3.4
3.5 - 5.0
5.1 - 7.0
7.1 - 12.0
12.1 - 16.0
16.1 - 20.0
* Based on limiting the line voltage drop to five volts at 150%
of the rated amperes.
READ AND SAVE ALL INSTRUCTIONS
FOR FUTURE USE.
3
Extension Cord Length
25'
50'
75'
100'
18
18
18
18
16
18
18
18
18
18
16
14
18
16
14
12
16
14
12
10
12
10
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14
12
10
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150'
16
14
12
12
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