Milwaukee 0370-20 User Manual
OPERATOR'S MANUAL
MANUEL de L'UTILISATEUR
MANUAL del OPERADOR
Cat. No.
No de cat.
Cat. No.
0370-20
HEAVY-DUTY CLOSE QUARTER DRILLS
EXTRA ROBUSTES PERCEUSES COUDÉES
MINIT ALADRO ANGULAR HEA VY -DUTY
TO REDUCE THE RISK OF INJURY, USER MUST READ OPERATOR'S MANUAL.
AFIN DE RÉDUIRE LE RISQUE DE BLESSURES, L'UTILISATEUR DOIT LIRE LE
MANUEL DE L'UTILISATEUR.
PARA REDUCIR EL RIESGO DE LESIONES, EL USUARIO DEBE LEER EL MANUAL
DEL OPERADOR.
GENERAL SAFETY RULES — FOR ALL POWER TOOLS
WARNING
READ ALL INSTRUCTIONS
Failure to follow all instructions listed below may result in electric shock, fi re and/or
serious injury. The term "power tool" in all of the warnings listed below refers to your
mains-operated (corded) power tool or battery-operated (cordless) power tool.
SAVE THESE INSTRUCTIONS
WORK AREA SAFETY
1. Keep work area clean and well lit.
Cluttered or dark areas invite accidents.
2. Do not operate power tools in ex-
plosive atmospheres, such as in the
presence of fl ammable liquids, gases,
or dust. Power tools create sparks which
may ignite the dust or fumes.
3. Keep children and bystanders away
while operating a power tool. Distractions can cause you to lose control.
ELECTRICAL SAFETY
4. Power tool plugs must match the
outlet. Never modify the plug in any
way. Do not use any adapter plugs
with earthed (grounded) power tools.
Unmodifi ed plugs and matching outlets
will reduce risk of electric shock.
5. Avoid body contact with earthed or
grounded surfaces such as pipes,
radiators, ranges and refrigerators.
There is an increased risk of electric shock
if your body is earthed or grounded.
6. Do not expose power tools to rain or
wet conditions. Water entering a power
tool will increase the risk of electric
shock.
7. Do not abuse the cord. Never use the
cord for carrying, pulling, or unplugging the power tool. Keep cord away
from heat, oil, sharp edges, or moving parts. Damaged or entangled cords
increase the risk of electric shock.
8. When operating a power tool out-
doors, use an extension cord suitable
for outdoor use. Use of a cord suitable
for outdoor use reduces the risk of electric shock.
PERSONAL SAFETY
9. Stay alert, watch what you are do-
ing and use common sense when
operating a power tool. Do not use
a power tool while you are tired or
under the infl uence of drugs, alcohol
or medication. A moment of inattention
while operating power tools may result
in serious personal injury.
10. Use safety equipment. Always wear
eye protection. Safety equipment such
as dust mask, non-skid safety shoes,
hard hat, or hearing protection used
for appropriate conditions will reduce
personal injuries.
11. Avoid accidental starting. Ensure the
switch is in the off-position before plugging in. Carrying tools with your fi nger on
the switch or plugging in power tools that
have the switch on invites accidents.
12. Remove any adjusting key or wrench
before turning the power tool on. A
wrench or a key left attached to a rotating part of the power tool may result in
personal injury.
13. Do not overreach. Keep proper foot-
ing and balance at all times. This
enables better control of the power tool
in unexpected situations.
14. Dress properly. Do not wear loose
clothing or jewellery. Keep your hair,
clothing and gloves away from moving
parts. Loose clothes, jewellery, or long
hair can be caught in moving parts.
15. If devices are provided for the connec-
tion of dust extraction and collection
facilities, ensure these are connected
and properly used. Use of these de-
vices can reduce dust-related hazards.
POWER TOOL USE AND CARE
16. Do not force the power tool. Use the
correct power tool for your application. The correct power tool will do the
job better and safer at the rate for which
it was designed.
17. Do not use the power tool if the switch
does not turn it on and off. Any power tool
that cannot be controlled with the switch is
dangerous and must be repaired.
18. Disconnect the plug from the power
source and/or the battery pack from
the power tool before making any
adjustments, changing accessories,
or storing power tools. Such preven-
tive safety measures reduce the risk of
starting the tool accidentally.
19. Store idle power tools out of the reach
of children and do not allow persons
unfamiliar with the power tools or
these instructions to operate power
tools. Power tools are dangerous in the
hands of untrained users.
20. Maintain power tools. Check for
misalignment or binding of moving
parts, breakage of parts and any
other condition that may affect the
power tool's operation. If damaged,
have the power tool repaired before
use. Many accidents are caused by
poorly maintained power tools.
21. Keep cutting tools sharp and clean.
Properly maintained cutting tools with
sharp cutting edges are less likely to
bind and are easier to control.
22. Use the power tool, accessories and
tool bits etc., in accordance with
these instructions and in the manner
intended for the particular type of
power tool, taking into account the
working conditions and the work to
be performed. Use of the power tool for
operations different from those intended
could result in a hazardous situation.
SERVICE
23. Have your power tool serviced by a
qualifi ed repair person using only
identical replacement parts. This will
ensure that the safety of the power tool
is maintained.
SPECIFIC SAFETY RULES
1. Hold power tools by insulated grip-
ping surfaces when performing an
operation where the cutting tool may
contact hidden wiring or its own cord.
Contact with a "live" wire will make exposed metal parts of the tool "live" and
shock the operator.
2. Wear ear protectors with impact
drills. Exposure to noise can cause
hearing loss.
3. Keep hands away from all cutting
edges and moving parts.
4. Maintain labels and nameplates.
These carry important information.
If unreadable or missing, contact a
MILWAUKEE service facility for a free
replacement.
5. WARNING! Some dust created by
power sanding, sawing, grinding, drilling, and other construction activities
contains chemicals known to cause
cancer, birth defects or other reproductive harm. Some examples of these
chemicals are:
• lead from lead-based paint
• crystalline silica from bricks and cement
and other masonry products, and
• arsenic and chromium from chemicallytreated lumber.
Your risk from these exposures varies,
depending on how often you do this
type of work. To reduce your exposure
to these chemicals: work in a well ventilated area, and work with approved
safety equipment, such as those dust
masks that are specially designed to
fi lter out microscopic particles.
2 3
FUNCTIONAL DESCRIPTION
1
Improperly connecting the grounding
wire can result in the risk of electric
shock. Check with a qualifi ed electri-
cian if you are in doubt as to whether
the outlet is properly grounded. Do not
modify the plug provided with the tool.
Never remove the grounding prong
1. Chuck
2. Paddle switch
2
3
3. Forward/Reverse switch
4. Cord
4
Specifi cations
Twist Drill
Catalog
Number
0370-20
Volts
AC
120
Amps
3.5
No Load
RPM
0 - 1300
Capacity
in Steel
3/8"
Symbology
Underwriters
Laboratories, Inc.
Mexican Approvals
Marking
Double Insulated
4 5
Volts Alternating Current
No Load Revolutions
per Minute (RPM)
Amperes
from the plug. Do not use the tool if the
cord or plug is damaged. If damaged,
have it repaired by a MILW AUKEE service facility before use. If the plug will
not fi t the outlet, have a proper outlet
installed by a qualifi ed electrician.
Grounded Tools:
Tools with Three Prong Plugs
Tools marked “Grounding Required” have a
three wire cord and
three prong grounding
plug. The plug must be
connected to a properly grounded outlet (See Figure A). If the tool
should electrically malfunction or break down,
grounding provides a low resistance path to
carry electricity away from the user, reducing
the risk of electric shock.
The grounding prong in the plug is connected
through the green wire inside the cord to the
grounding system in the tool. The green wire
in the cord must be the only wire connected to
the tool's grounding system and must never be
attached to an electrically “live” terminal.
Your tool must be plugged into an appropriate outlet, properly installed and grounded in
accordance with all codes and ordinances.
The plug and outlet should look like those in
Figure A.
Double Insulated Tools:
Tools with Two Prong Plugs
Tools marked “Double
Insulated” do not require grounding. They
have a special double
insulation system which
satisfi es OSHA require-
ments and complies
with the applicable standards of Underwriters
Laboratories, Inc., the Canadian Standard
Association and the National Electrical
Code. Double Insulated tools may be used
in either of the 120 volt outlets shown in
Figures B and C.
GROUNDING
WARNING
Fig. A
Fig. B Fig. C
EXTENSION CORDS
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 suffi x
“W-A” (“W” in Canada) to indicate that it
is acceptable for outdoor use.
• 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
qualifi ed person before using it.
• Protect your extension cords from sharp
objects, excessive heat and
damp or wet areas.
Recommended Minimum Wire Gauge
Nameplate
* Based on limiting the line voltage drop to
fi ve volts at 150% of the rated amperes.
for Extension Cords*
Amperes
0 - 2.0
2.1 - 3.4
3.5 - 5.0
5.1 - 7.0
7.1 - 12.0
12.1 - 16.0
16.1 - 20.0
Extension Cord Length
50'
18
18
18
16
14
12
10
75'
18
18
16
14
12
10
100'
18
16
14
12
10
150'
25'
18
18
18
18
16
14
12
16
14
12
12
READ AND SAVE ALL
INSTRUCTIONS FOR
FUTURE USE.
TOOL ASSEMBLY
WARNING
To reduce the risk of injury,
always unplug tool before attaching
or removing accessories or making
adjustments. Use only specifi cally
recommended accessories. Others
may be hazardous.
Installing Bits into Keyed Chucks
Fig. 1
Tighten
Loosen
1. Open the chuck jaws wide enough to
insert the bit. Be sure the bit shank and
chuck jaws are clean. Dirt particles may
prevent the bit from lining up properly.
2. When using drill bits, insert the bit into
the chuck. Center the bit in the chuck
jaws and lift it about 1/16" off of the bottom. Tighten the chuck jaws by hand to
align the bit.
When using screwdriver bits, insert the
bit far enough for the chuck jaws to grip
the bit shank. Tighten the chuck jaws by
hand to align the bit.
3. Place the chuck key in each of the three
holes in the chuck, turning it clockwise
as shown. Tighten securely.
4. To remove the bit, insert the chuck key
into one of the holes in the chuck and
turn it counterclockwise.
WARNING
To prevent personal injury, always
remove the chuck key from the
chuck after each use.
OPERATION
WARNING
To reduce the risk of injury, wear
safety goggles or glasses with side
shields. Unplug the tool before
changing accessories or making
adjustments.
Using Forward/Reverse Switch
Fig. 2
Reverse
Forward
1. For forward (clockwise) rotation, slide
the forward/reverse switch to the left.
2. For reverse (counterclockwise) rotation,
slide the forward/reverse switch to the
right.
NOTE: T o prevent damage to the motor ,
allow the tool to come to a complete stop
before reversing.
WARNING
To reduce the risk of explosion,
electric shock and property damage, always check the work area
for hidden electrical wires or pipes
when drilling.
Starting, Stopping and Controlling
Speed
1. To start the tool, pull the paddle
switch.
2. To stop the tool, release the paddle
switch.
3. To vary the driving speed, increase or
decrease pressure on the paddle switch.
The further the paddle switch is pulled,
the greater the speed.
WARNING
To reduce the risk of explosion,
electric shock and property damage, always check the work area
for hidden electrical wires or pipes
when drilling.
Drilling
1. Before drilling, be sure the workpiece is
clamped securely. Use backing material
to prevent damage to the workpiece
during breakthrough.
2. When starting a hole, place the drill
bit on the work surface and apply fi rm
pressure. Begin drilling at a slow speed,
gradually increasing the speed as you
drill.
3. Use enough pressure on the tool to keep
the bit drilling or driving constantly, but
do not push hard enough to stall the
bit.
4. Reduce pressure and ease the bit
through the last part of the hole. While
the tool is still running, pull the bit out of
the hole to prevent jamming.
Stalling
If the tool seems as if it is about to stall, maintain a fi rm grip and reduce pressure slightly to
allow the bit to regain speed. If the tool does
stall, release the paddle switch immediately.
Reverse the motor, remove the bit from the
work and start again. Do not press the paddle
switch on and off in an attempt to start a
stalled drill. This can damage the drill.
APPLICATIONS
Selecting Bits
When selecting a bit, use the right type for
your job. For best performance, always use
sharp bits.
Drilling in Wood, Composition Materials
and Plastic
When drilling in wood, composition materials
and plastic, start the drill slowly, gradually
increasing speed as you drill. When using
twist drill bits, pull the bit out of the hole
frequently to clear chips from the bit fl utes.
Use low speeds for plastics with a low melting point.
Drilling in Masonry
When drilling in masonry, 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 fl ow
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.
Drilling in Metal
When drilling in metal, use high speed steel
twist drills or hole saws. Use slow speeds
for hard metals and high speeds for softer
metals. Lubricate drill bits with cutting oil
when drilling in iron or steel. Use a coolant
when drilling in nonferrous metals such as
copper, brass or aluminum. Back the material to prevent binding and distortion on
breakthrough.
Driving Screws
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 excessive speeds. To
remove screws, reverse the motor.
6 7
MAINTENANCE
FIVE YEAR TOOL LIMITED WARRANTY
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 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
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:
• Lubrication
• Brush inspection and replacement
• Mechanical inspection and cleaning
(gears, spindles, bearings, housing,
etc.)
• Electrical inspection (switch, cord,
armature, etc.)
• T esting to assure proper mechanical and
electrical operation
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 fl ow 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 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.
ACCESSORIES
WARNING
To reduce the risk of injury, always
unplug the tool before attaching or
removing accessories. Use only specifi cally recommended accessories.
Others may be hazardous.
Every MILWAUKEE electric power tool (including battery charger) is warranted to the original
purchaser only to be free from defects in material and workmanship. Subject to certain exceptions, MILWAUKEE will repair or replace any part on a electric power tool which, after examina-
tion, is determined by MILWAUKEE to be defective in material or workmanship for a period of
fi ve (5) years* after the date of purchase. Return the electric power tool and a copy of proof
of purchase to a MILWAUKEE factory Service/Sales Support Branch location or MILWAUKEE
Authorized Service Station, freight prepaid and insured, are requested for this warranty to be
effective. This warranty does not apply to damage that MILWAUKEE determines to be from
repairs made or attempted by anyone other than MILWAUKEE authorized personnel, misuse,
alterations, abuse, normal wear and tear, lack of maintenance, or accidents.
* The warranty period for Hoists (lever, hand chain, & electric chain hoists), Ni-Cd battery
packs, Work Lights (cordless fl ashlights), Job Site Radios, and Trade Titans™ Industrial Work
Carts is one (1) year from the date of purchase.
*There is a separate warranty for Li-Ion Battery Packs that accompany the power tools:
*Every MILWAUKEE Li-Ion Battery Pack is covered by an initial 1000 Charges/2 Years free
replacement warranty. This means that for the earlier of the fi rst 1000 charges or two (2) years
from the date of purchase/fi rst charge, a replacement battery will be provided to the customer
for any defective battery free of charge. Thereafter, customers will also receive an additional
warranty on a pro rata basis up to the earlier of the fi rst 2000 charges or fi ve (5) Years from
the date of purchase/fi rst charge. This means that every customer gets an additional 1000
charges or three (3) years of pro rata warranty on the Li-Ion Battery Pack depending upon
the amount of use. During this additional warranty period, the customer pays for only the
useable service received over and above the fi rst 1000 Charges/2 years, based on the date
of fi rst charge and number of charges found on the battery pack via MILWAUKEE’s Service
Reader. After 1000 charges/2 years from the date of purchase/fi rst charge, the customer will
be charged a prorated amount for the service rendered.
Warranty Registration is not necessary to obtain the applicable warranty on a MILWAUKEE
product. However, proof of purchase in the form of a sales receipt or other information deemed
suffi cient by MILWAUKEE, is requested.
ACCEPTANCE OF THE EXCLUSIVE REPAIR AND REPLACEMENT REMEDIES DESCRIBED HEREIN IS A CONDITION OF THE CONTRACT FOR THE PURCHASE OF
EVERY MILWAUKEE PRODUCT. IF YOU DO NOT AGREE TO THIS CONDITION, YOU
SHOULD NOT PURCHASE THE PRODUCT. IN NO EVENT SHALL MILWAUKEE BE LI-
ABLE FOR ANY INCIDENTAL, SPECIAL, CONSEQUENTIAL OR PUNITIVE DAMAGES,
OR FOR ANY COSTS, ATTORNEY FEES, EXPENSES, LOSSES OR DELAYS ALLEGED
TO BE AS A CONSEQUENCE OF ANY DAMAGE TO, FAILURE OF, OR DEFECT IN ANY
PRODUCT INCLUDING, BUT NOT LIMITED TO, ANY CLAIMS FOR LOSS OF PROFITS.
THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES OR CONDITIONS, WRITTEN OR ORAL, EXPRESSED OR IMPLIED. WITHOUT LIMITING THE
GENERALITY OF THE FOREGOING, MILWAUKEE DISCLAIMS ANY IMPLIED WARRANTY
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE, AND ALL
OTHER WARRANTIES.
This warranty applies to product sold in the U.S.A., Canada and Mexico only.
Please consult MILWAUKEE’s website www.milwaukeetool.com or call 1.800.SAWDUST
(1.800.729.3878) to locate your nearest service facility for warranty and non-warranty service
on a MILWAUKEE electric power tool.
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.
8 9
Loading...