Milwaukee 0726-20 manual Applications Maintenance Accessories

APPLICATIONS

MAINTENANCE

ACCESSORIES

WARNING To reduce the risk of elec- tric shock, check work area for hidden pipes and wires before drilling or driving screws.

Drilling in Wood, Composition Materials and Plastic

When drilling in wood, composition materials and

plastic, select the drill-only operating mode. Start the drill slowly, gradually increasing speed as you drill. When drilling into wood, use wood augers or twist drill bits. Always use sharp bits. When using twist drill bits, pull the bit out of the hole frequently to clear chips from the bit flutes. To reduce the chance of splintering, back work with a piece of scrap wood. Select low speeds for plastics with a low melting point.

Drilling in Metal

When drilling in metal, select the drill-only operating mode. Use high speed steel twist drills or hole saws. Use a center punch to start the hole. Lubricate drill bits with cutting oil when drilling in iron or steel. Use a coolant when drilling in nonfer- rous metals such as copper, brass or aluminum. Back the material to prevent binding and distortion on breakthrough.

Drilling in Masonry

When drilling in masonry, select the hammer- drill operating mode. Use high speed carbide-tipped bits. Drilling soft masonry materials such as cinder block requires little pressure. Hard materials like concrete require more pressure. A smooth, even flow of dust indicates the proper drilling rate. Do not let the bit spin in the hole without cutting. Do not use water to settle dust or to cool bit. Both actions will damage the carbide.

Driving Screws and Nut Running

Drill a pilot hole when driving screws into thick or

hard materials. Select the driving operating mode. Set the torque selector collar to the proper position and set the speed to low. Use the proper style and size screwdriver bit for the type of screw you are using. With the screwdriver bit in the screw, place the tip of the screw on the workpiece and ap- ply firm pressure before pulling the trigger. Screws can be removed by reversing the motor.

Overloading

Continuous overloading may cause permanent damage to tool or battery pack.

WARNING High rotational force. To reduce the risk of injury, always hold or brace securely. Always use side handle on tools.

Bit Binding

A high rotational force occurs when a bit binds. If the bit binds, the tool will be forced in the opposite direction of the bit rotation. Bits may bind if they are misaligned or when they are breaking through a hole. Wood boring bits can also bind if they run into nails or knots. Be prepared for bit binding situations. To reduce the chance of bit binding:

•Use sharp bits. Sharp bits are less likely to bind when drilling.

•Use the proper bit for the job. There are bits that are designed for specific purposes.

•Use caution when drilling pitchy, knotty, wet or warped material or when drilling in material that may contain nails.

Typical Bracing Methods

Fig. 6 Bracing against the floor

Forward rotation

Reaction

Fig. 7

Bracing

against your

leg

Forward	Reaction
rotation
Fig. 8	Bracing
	against
	a stud
Reaction	Reaction
Reverse	Forward
rotation	rotation

WARNING To reduce the risk of injury, always unplug the charger and remove the battery pack from the charger or tool before performing any maintenance. Never disas- semble the tool, battery pack or charger. Contact a MILWAUKEE service facility for ALL repairs.

Maintaining Tool

Keep your tool, battery pack and charger in good repair by adopting a regular maintenance program. After six months to one year, depending on use, return the tool, battery pack and charger to A MILWAUKEE service facility for:

•Lubrication

•Mechanical inspection and cleaning (gears, spin- dles, bearings, housing, etc.)

•Electrical inspection (battery pack, charger, motor)

•Testing to assure proper mechanical and electrical operation

If the tool does not start or operate at full power with a fully charged battery pack, clean the contacts on the battery pack. If the tool still does not work properly, return the tool, charger and battery pack, to a MILWAUKEE service facility for repairs.

WARNING To reduce the risk of per- sonal injury and damage, never immerse your tool, battery pack or charger in liquid or allow a liquid to flow inside them.

Cleaning

Clean dust and debris from charger and tool vents. Keep tool handles clean, dry and free of oil or grease. Use only mild soap and a damp cloth to clean the tool, battery pack and charger since certain cleaning agents and solvents are harmful to plastics and other insulated parts. Some of these include gasoline, turpentine, lacquer thinner, paint thinner, chlorinated cleaning solvents, ammonia and house- hold detergents containing ammonia. Never use flammable or combustible solvents around tools.

Repairs

For repairs, return the tool, battery pack and charger to the nearest service center.

WARNING Always remove battery pack before changing or removing accessories. Only use accessories specifically recommend- ed for this tool. Others may be hazardous.

For a complete listing of accessories refer to your MILWAUKEE Electric Tool catalog or go online to www.milwaukeetool.com. To obtain a catalog, contact your local distributor or service center.

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