Maintenance

Shifting Speeds (Fig. 8)

Cat. No. 1675-1 has

Drilling

Before drilling, clamp down the material

a gear shift lever on Fig. 8 the right side of the

gear case.

The high setting (1200 RPM HI) is the low torque setting and is designed for driving Selfeed bits 1-3/8" in diameter and smaller.

The low setting (300 RPM LO) is the high torque setting and is designed for driving Selfeed bits 1-1/2" in diameter and larger.

Reversing (Fig. 9)

Fig. 9

securely. A poorly secured piece of material may result in personal injury or inaccurate drilling. When drilling in light gauge metal or wood, use a wooden block to back up the ma- terial to prevent damage to the workpiece.

Mark the center of the hole to be drilled with a center punch to give the bit a start and to prevent it from "walking." Lubricate the drill bit with cutting oil when drilling iron or steel. Use a coolant when drilling nonferrous met- als such as copper, brass or aluminum.

To start a selfeed bit, run the threaded feed screw into the work by ﬂicking the trigger switch, permitting the bit to coast until the teeth contact the work surface. Align the bit properly before proceeding. This will reduce cocking and jamming when starting. To re- duce jamming on breakthrough, decrease the drilling pressure when the feed screw point breaks through the workpiece. Proceed with steady, even pressure.

WARNING

To reduce the risk of injury, always wear eye protection.

Chuck Removal

To remove the chuck from the drill:

1. Unplug tool.

WARNING

Toreducetheriskofinjury,alwaysun- plug your tool before performing any maintenance.Neverdisassemblethe 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 affect its safe operation. If abnormal noise or vibration oc- curs, turn the tool off immediately 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 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 household detergents con- taining ammonia. Never use ﬂammable or combustible solvents around tools.

Repairs

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

A reversing switch is located below the trig- ger switch for removal of bits from holes. Permit the motor to come to a complete stop before reversing. Reversing the tool with the gears in motion may cause severe damage. When removing selfeed bits from partially drilled holes, a ﬂick of the trigger switch will free the threaded pilot screw. When the threads are loose, lift the bit from the work- piece with the motor stopped.

2.	Fully open the chuck jaws
3.	Remove the left-handed thread screw
	from inside the chuck by turning it clock-
	wise.
4.	Pull the chuck off of the spindle.
	NOTE: If the chuck does not pull off of
	the spindle easily, tap the side of the
	chuck with a hammer to loosen it. If this
	doesn't work, contact a MILWAUKEE
	service center.

•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