Milwaukee 2404-1 用户手册

C

When drilling in reverse, the bit will rotate in a 
counterclockwise direction. If the bit binds in the 
hole, the bit will come to a sudden stop and the 
drill will suddenly react in a clockwise direction. 
Figure 5 shows an example of the Super Hole-
Shooter properly braced for reverse rotation. 
A. Reverse (counterclockwise) rotation 
B. Reaction 
C. Brace drill with pipe handle here
If the bit binds, the pipe handle or the motor housing 
braced against the stud will hold the drill in position.

When drilling in forward, the bit will rotate in a 
clockwise direction. If the bit binds in the hole, the 
bit will come to a sudden stop and drill will suddenly 
react in a counterclockwise direction.
Figure 4 shows an example of a Super Hole-
Shooter properly braced for forward rotation. 
A. Forward (clockwise) rotation
B. Reaction 
C. Brace drill with pipe handle here
If the bit binds, the pipe handle or the motor housing 
braced against the stud will hold the drill in position.

B

C

A

Reversing (Fig. 6)
A reversing switch is lo-
cated below the trigger 
switch for removal of bits 
from holes. Permit the mo-
tor 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 
fl ick of the trigger switch will free the threaded pilot 
screw. When the threads are loose, lift the bit from 
the workpiece with the motor stopped.

Chuck Removal
This tool is equipped with a threaded spindle to 
hold the chuck. Before 
removing the chuck, 
unplug the tool and 
open the chuck jaws. 
A left-handed thread 
screw is located inside 
the chuck to prevent the 
chuck from loosening 
when the tool is oper-
ated in reverse direc-
tion. Remove the screw 
by turning it clockwise. 
To remove the chuck, hold the tool so that only the 
side of the chuck rests fi rmly and squarely on a 
solid workbench. Insert the chuck key or a chuck 
remover bar in one of the keyholes. Turn the chuck 
so the key is at about a 30° angle to the bench top 
and strike the key sharply with a hammer so the 
chuck turns in a counterclockwise direction (look-
ing from the front of the tool). This should loosen 
the chuck from the spindle which has a right hand 
thread making it easy to remove the chuck by hand. 
NOTE: When replacing the chuck, always replace 
the left hand thread screw in the chuck.

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

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, bro-
ken parts and any other condition that may affect 
its safe operation. If abnormal noise or vibration 
occurs, 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 neces-
sary 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:
• Lubrication
• Brush inspection and replacement
• Mechanical inspection and cleaning (gears, spin-

dles, bearings, housing, etc.)

• Electrical inspection (switch, cord, armature, etc.)
• Testing to assure proper mechanical and electrical 

operation

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.

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 containing 
ammonia. Never use fl ammable or combustible 
solvents around tools.

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

If the bit binds, the drill will suddenly react in the 
opposite direction of the rotation of the bit. Figure 
3 shows the path of reaction, (B) if the drill bit binds 
while being driven in forward (A).The operator 
should reduce the chances of a sudden reaction 
by following the instructions listed below. 
The operator should also prepare for a sudden 
reaction by holding    securely using the pipe handle 
or bracing against a solid fi xed object.

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 many 

types of bits designed for specifi c purposes. 

• Avoid drilling warped, wet, knotty, and or pitchy 

material if possible. 

• Avoid drilling in material that you suspect contains hid-

den nails or other things that may cause the bit to bind.

The direction of reaction is always opposite of the 
direction of bit rotation. 
Reaction is even more likely to occur when enlarg-
ing already existing holes and at the point when the 
bit breaks through the other side of the material. 

Drilling
Before drilling, clamp the material down 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 material 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 metals such as copper, brass or 
aluminum.