EXTENSION CORDS
ASSEMBLY
OPERATION
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
•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 | Extension Cord Length | |||||
Amperes | 25' | 50' | 75' | 100' | 150' | |
0 - 2.0 | 18 | 18 | 18 | 18 | 16 | |
2.1 | - 3.4 | 18 | 18 | 18 | 16 | 14 |
3.5 | - 5.0 | 18 | 18 | 16 | 14 | 12 |
5.1 | - 7.0 | 18 | 16 | 14 | 12 | 12 |
7.1 - 12.0 | 16 | 14 | 12 | 10 |
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12.1 | - 16.0 | 14 | 12 | 10 |
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16.1 | - 20.0 | 12 | 10 |
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*Based on limiting the line voltage drop to five volts at 150% of the rated amperes.
READ AND SAVE ALL
INSTRUCTIONS FOR FUTURE USE.
FUNCTIONAL DESCRIPTION
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1. Side handle |
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2. | Bit holder |
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3. | Bit release collar |
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4. Mode selector |
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5. | Trigger | 1 |
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WARNING To reduce the risk of injury, always unplug tool before attaching or removing accessories or making adjust-
ments. Use only specifically recommended accessories. Others may be hazardous.
WARNING To reduce the risk of injury, always use a side handle when using
this tool. Always brace or hold securely.
Adjusting the Side Handle Position
1.Loosen the side handle by unscrewing the side handle grip until the side handle rotates freely.
2.Rotate the side handle to the desired position.
3.Tighten the side handle grip securely.
WARNING To reduce the risk of injury do not grasp the bit while the chuck is rotat- ing or while the bit is falling from the chuck.
Installing Bits and Chisels
Be sure that the shank of the bit is clean. Dirt par- ticles may cause the bit to line up improperly. Do not use bits larger than the maximum recommended capacity of the drill because gear damage or mo- tor overloading may result. For best performance, be sure that the bit is properly sharpened and the shank is lightly greased before use. Use caution when handling hot bits and chisels.
SDS-Max Drive System
1.Unplug tool.
2.Insert the bit or chisel into the nose of the tool.
3.Push bit into tool until it locks.
5.Check to see that the bit is locked by tugging on it.
6.To remove bits and chisels, pull back on the bit release collar and remove bit.
Spline Drive System
1.Unplug tool.
2.Insert the bit or chisel into the nose of the tool. If you are using a rotary bit, make sure that the splines on the shank engage with the splines inside the nose of the tool.
If you are using a chisel, make sure that the notch in the shank faces up.
3.Push bit into tool until it locks.
4.Check to see that the bit is locked by tugging on it.
5.To remove bits and chisels, pull bit release collar toward the rear of tool and remove bit.
WARNING To reduce the risk of injury, always unplug tool before attaching or removing accessories or making adjust-
ments. Use only specifically recommended accessories. Others may be hazardous.
WARNING To reduce the risk of injury, wear safety goggles or glasses with
side shields.
WARNING To reduce the risk of injury, keep hands and cord away from the
bit and all moving parts.
Selecting Action
T h e s e M I LWA U K E E R o t a r y 
Hammers have three settings: 
hammering with rotation, hammering- 
only, and chisel adjustment. 
1.Hammering with rotation. Use 
this setting for drilling holes with 
drill bits.
2.Hammering only. For use with
Use this setting for chiseling or 
setting 
3.Chisel adjustment. Use this set- 
ting to adjust the angle of the chisel 
blade in relation to the tool. With a 
chisel mounted in the tool: 
• turn the knob to this setting
• rotate the chisel to the desired 
angle
•turn the knob to 
NOTE: To engage the hammering mechanism, maintain pressure on the bit. When the pressure on the bit is released, the hammering will stop.
Starting and Stopping
1.To start the tool, grasp the handle firmly and pull the trigger.
2.To stop the tool, release the trigger. Make sure the tool comes to a complete stop before laying the tool down.
Operating
Position the tool, grasp the handles firmly and pull the trigger. Always hold the tool securely using both handles to maintain control. This tool has been designed to achieve top performance with only moderate pressure. Let the tool do the work.
If the speed begins to drop off when drilling large or deep holes, pull the bit partially out of the hole while the tool is running to help clear dust. Do not use water to settle the dust since it will clog the bit flutes and tend to make the bit bind in the hole. If the bit should bind, a
Cold Starting
If this tool is stored for a long period of time or at cold temperatures, it may not hammer ini- tially because the lubrication has become stiff. To warm up the tool:
1.Insert and lock a bit or chisel into the tool.
2.Pull the trigger and apply force to the bit or chisel against a concrete or wood surface for a few seconds. Release the trigger
3.Repeat until the tool starts hammering. The colder the tool is, the longer it will take to warm up.
Using Rotary Percussion Core Bits
Core Bits are useful for drilling large or long holes in concrete. MILWAUKEE
1.Clean and lubricate the threads on the adapter and core bit to make later removal easier. Thread the adapter shank to the rear of the core bit.
2.Push the guide plate
onto the pointed end 
of the center pin. In-
sert the center pin and guide plate assembly into the core bit. Be sure the small end of the center pin is se- curely placed into the hole in the center of the core bit.
For LHS systems, screw the threaded end of the centering bit into the core bit.
NOTE: If using an extension, first thread the adapter shank to the extension. Then thread the core bit to the extension.
3.Insert the adapter into the nose of the tool as described in “Installing Bits and Chisels”. Set the knob to the "hammering with rotation" setting.
4.Press the centering bit firmly against your center mark, hold the tool firmly and pull the trigger.
NOTE: If the
plate or notched board 
to start the hole.
5.Start the tool. After drill- ing to about the depth of the core bit teeth, remove the center pin and guide plate from the core bit (not nec- esary for LHS system). Resume drilling.
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