Maintenance

Driving Screws

Typical Bracing Methods

When driving screws, use the proper screwdriver bit for your job. After drilling pilot and shank holes, start the screw slowly and increase the speed as driving progresses. Set the screw by slowing to a stop. Do not run screws down at exces- sive speeds. To remove screws, reverse the motor.

Stalling

If the tool seems as if it is about to stall, maintain a firm grip and reduce pressure slightly to allow the bit to regain speed. If the tool does stall, release the trigger im- mediately. Reverse the motor, remove the bit from the work and start again. Do not pull the trigger on and off in an attempt to start a stalled drill. This can damage the drill.

WARNING!

High rotational force. To reduce the risk of injury, always hold or brace securely. Always use side handle on tools rated 1200 rpm or less.

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

Fig. 12

Forward rotation

Reaction

Bracing against the floor

Fig. 13

Forward rotation

Reaction

Bracing against your leg

Fig. 14	Reaction

WARNING!

To reduce the risk of injury, always unplug your tool before performing any maintenance. Never disassemble the tool or try to do any rewiring on the tool's electrical system. Contact a MILWAUKEE service facility for ALL repairs.

Maintaining Tools

Keep your tool in good repair by adopting a regular maintenance program. Before use, examine the general condition of your tool. Inspect guards, switches, tool cord set and extension cord for damage. Check for loose screws, misalignment, binding of moving parts, improper mounting, broken parts and any other condition that may af- fect its safe operation. If abnormal noise or vibration occurs, turn the tool off imme- diately and have the problem corrected before further use. Do not use a damaged tool. Tag damaged tools “DO NOT USE” until repaired (see “Repairs”).

Under normal conditions, relubrication is not necessary until the motor brushes need to be replaced. After six months to one year, depending on use, return your tool to the nearest MILWAUKEE service facility for the following:

WARNING!

To reduce the risk of injury, electric shock and damage to the tool, never immerse your tool in liquid or allow a liquid to flow inside the tool.

Cleaning

Clean dust and debris from vents. Keep the tool handles clean, dry and free of oil or grease. Use only mild soap and a damp cloth to clean your tool since certain clean- ing agents and solvents are harmful to plas- tics and other insulated parts. Some of these include: gasoline, turpentine, lacquer thinner, paint thinner, chlorinated cleaning solvents, ammonia and household deter- gents containing ammonia. Never use flam- mable or combustible solvents around tools.

Repairs

If your tool is damaged, return the entire tool to the nearest service center.

(See Fig. 12-14). 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 pre- pared 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 drill- ing in material that may contain nails.

Reverse rotation	Forward rotation
Bracing against a stud

•Lubrication

•Brush inspection and replacement

•Mechanical inspection and cleaning (gears, spindles, bearings, housing, etc.)

•Electrical inspection (switch, cord, armature, etc.)

•Testing to assure proper mechanical and electrical operation