Milwaukee 5378-21, 5378-20 User Manual
Cat. No.
No de cat.
Cat. No.
5378-20
5378-21
OPERATOR'S MANUAL
MANUEL de L'UTILISATEUR
MANUAL del OPERADOR
1/2" HAMMER-DRILL
PERCEUSES À PERCUSSION 13 mm (1/2")
13 mm (1/2") TALADRO-MARTILLO
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 tool by insulated gripping sur-
faces when performing an operation
where the cutting tool may contact
hidden wiring or its own cord. Con-
tact with a "live" wire will make exposed
metal parts of the tool "live" and shock
the operator.
2. Wear ear protectors when using the
tool for extended periods. Prolonged
exposure to high intensity 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
GROUNDING
WARNING
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 from the plug. Do not use the
tool if the cord or plug is damaged.
If damaged, have it repaired by a
MILWAUKEE service facility before
9
4
8
3
1
7
6
2
5
1. Side handle
2. Depth guage
3. Clamping lever
4. Hammer/Drill lever
5. Lock button
6. Trigger
7. Forward/Reverse lever
8. Speed selector
9. Chuck
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.
Fig. A
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 satisfies
OSHA requirements 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.
Fig. B
Fig. C
Cat.
No.
5378-20
and
5378-21
Volts
AC
120
A
7.5
Low 0 - 1350
High 0 - 2500
Tool
No Load
RPM
Specifi cations
No Load
Blows per
Minute
22,000
40,000
4 5
Capacities
Drill Only
(steel or wood)
Twist
Drill
Bit
1/2" - 1-1/2"
Rotary Hammer
(concrete)
Carbide Tipped
Percussion
Bit
5/8"
Symbology
Double Insulated
Underwriters Laboratories, Inc.
Amps
Canadian Standards
Association
BPM
Blows per Minute (BPM)
Volts Alternating Current
No Load Revolutions per
Minute (RPM)
Mexican Approvals Marking
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
25'
18
18
18
18
16
14
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.
Removing the Chuck (Fig. 1)
Fig. 1
1. Open the chuck jaws fully.
2. Remove the screw inside the chuck
head. This is a left hand screw, turn
clockwise to remove.
3. Hold the spindle with a wrench (Fig. 1).
4. Insert the drill chuck key inside chuck
and loosen clockwise by tapping lightly
with a rubber hammer.
NOTE: To mount the chuck, reverse the
instructions above.
WARNING
50'
18
18
18
16
14
12
10
75'
18
18
16
14
12
10
100'
18
16
14
12
10
150'
16
14
12
12
Installing Bits into Keyed Chucks (Fig. 2)
Be sure that the shank of the bit and the
chuck jaws are clean. Dirt particles may
cause the bit to line up improperly. Do not
use bits larger than the maximum recommended capacity of the drill because gear
damage or motor overloading may result.
For best performance, be sure that the bits
are properly sharpened before use.
Fig. 2
Loosen
Tighten
1. Unplug the tool.
2. Open the chuck jaws wide enough to
insert a bit. Allow the bit to strike the
bottom of the chuck. Center the bit in
the chuck jaws and tighten the jaws by
hand to align the bit.
3. Place the chuck key into each of the
three holes in the chuck, turning it clockwise to tighten the chuck securely.
NOTE: Never use a wrench or means
other than a chuck key to tighten or
loosen the chuck.
4. To remove the bit, insert the chuck key
into one of the holes in the chuck and
turn it counterclockwise.
WARNING
To reduce the risk of injury, always
use a side handle when using this
tool. Always brace or hold securely.
Adjusting the Side Handle Position (Fig. 3)
Fig. 3
Side handle grip
1. Loosen the side handle by unscrewing
the side handle grip until the side handle
rotates freely.
2. Rotate the side handle to the desired
position.
3. Tighten the side handle grip securely.
Setting the Depth Gauge (Fig. 4)
Fig. 4
Drilling
Depth
1. Press in the clamping lever.
2. Slide the depth gauge rod backward
or forward until it is set for the desired
depth.
NOTE: The drilling depth is the distance
between the tip of the bit and the tip of
the depth gauge rod.
3. Release the clamping lever.
To prevent personal injury, always
remove the chuck key from the
chuck after each use.
6 7
OPERATION
APPLICATIONS
MAINTENANCE
WARNING
To reduce the risk of injury, wear
safety goggles or glasses with side
shields. Unplug the tool before
changing accessories or making
adjustments.
Selecting Action (Fig. 5)
MILWAUKEE Hammer-Drills have two settings: drilling and hammer-drilling.
Fig. 5
1. For drilling, turn the hammer-drill lever
towards the drill symbol .
2. For hammer-drilling, turn the
hammer-drill lever towards the
hammer symbol .
NOTE: To engage the hammering
mechanism, maintain pressure on
the bit. When pressure on the bit is
released, the hammering action will
stop.
Using Forward/Reverse Lever (Fig. 6)
The forward/reverse lever can only be adjusted when the trigger is not pressed. Always
allow the motor to come to a complete stop
before using the forward/reverse lever.
Fig. 6
Selector Lever
Forward
1. For forward (clockwise) rotation, push
the forward/reverse lever to the left
(when viewed from the back of the tool)
as shown.
2. For reverse (counterclockwise) rotation,
push the forward/reverse lever to the
right (when viewed from the back of the
tool) as shown. Allow the motor to come
to a full stop before reversing.
NOTE: When hammer-drilling, use the tool
in forward rotation (clockwise) only.
Selecting Speed
The speed can be changed when the tool
is at a complete stop or running under no
load.
1. For low speed (up to 1350 rpm), turn
the speed selector to position 1.
2. For high speed (up to 2500 rpm), turn
the speed selector to position 2.
Starting, Stopping & Controlling Speed
1. To start the tool, pull trigger.
2. To stop the tool, release trigger.
3. T o vary the speed, increase or decrease
pressure to trigger. The further the trigger is pulled, the greater the speed.
Operating
Position the tool, grasp the handles fi rmly
and pull the trigger. Always hold the tool
securely using both handles and maintain
control. This tool has been designed to
achieve top performance with only moderate
pressure. Let the tool do the work.
If the speed begins to drop off when drilling
deep holes, pull the bit partially out of the hole
while the tool is running to help clear dust.
Do not use water to settle the dust since it
will clog the bit fl utes and tend to make the
bit bind in the hole.
WARNING
To reduce the risk of electric shock,
check work area for hidden pipes
and wires before drilling.
Drilling in Wood, Composition Materials
and Plastic
When drilling in wood, composition materials
and plastic, select the drill operating mode.
Start the drill slowly, gradually increasing
speed as you drill. Select low speeds for
plastics with a low melting point.
Drilling in Metal
When drilling in metal, select the drill 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 nonferrous 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 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. Do not attempt to drill through steel
reinforcing rods. Both actions will damage
the carbide.
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
Reverse
8 9
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.
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.
Side Handle
Cat. No. 49-15-5300
FIVE YEAR TOOL
LIMITED WARRANTY
Every MILWAUKEE tool is tested before
leaving the factory and is warranted to be
free from defects in material and workmanship. MILWAUKEE will repair or replace (at
MILWAUKEE’s discretion), without charge,
any tool (including battery chargers) which
examination proves to be defective in material or workmanship from fi ve (5) years
after the date of purchase. Return the tool
and a copy of the purchase receipt or other
proof of purchase to a MILW AUKEE Factory
Service/Sales Support Branch location or
MILWAUKEE Authorized Service Station,
freight prepaid and insured. This warranty
does not cover damage from repairs made
or attempted by other than MILW AUKEE authorized personnel, abuse, normal wear and
tear, lack of maintenance, or accidents.
The warranty period for V28 Battery Packs
is two (2) years from the date of purchase.
The warranty period for Ni-Cd battery Packs,
Flashlights, Radios are warranted for one (1)
year from the date of purchase.
THE REPAIR AND REPLACEMENT REMEDIES DESCRIBED HEREIN ARE EXCLUSIVE. IN NO EVENT SHALL MILWAUKEE
BE LIABLE FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES,
INCLUDING LOSS OF PROFITS.
THIS WARRANTY IS EXCLUSIVE AND IN
LIEU OF ALL OTHER WARRANTIES, OR
CONDITIONS, WRITTEN OR ORAL, EXPRESSED OR IMPLIED FOR MERCHANTABLILITY OR FITNESS FOR P ARTICULAR
USE OR PURPOSE.
This warranty gives you specifi c legal rights.
Y ou may also have other rights that vary from
state to state and province to province. In
those states that do not allow the exclusion of
implied warranties or limitation of incidental
or consequential damages, the above limitations or exclusions may not apply to you.
This warranty applies to the United States,
Canada, and Mexico only.
RÈGLES GÉNÉRALES DE SÉCURITÉ POUR
LES OUTILS ÉLECTRIQUE
AVERTISSEMENT
LIRE SOIGNEUSEMENT TOUTES LES INSTRUCTIONS
Le non respect des instructions ci-après peut entraîner des chocs électriques, des
incendies et/ou des blessures graves. Le terme «outil électrique» fi gurant dans les
avertissements ci-dessous renvoie à l’outil électrique à alimentation par le réseau
(à cordon) ou par batterie (sans fi l).
CONSERVER CES INSTRUCTIONS
SÉCURITÉ DU LIEU
DE TRAVAIL
1. Maintenir la zone de travail propre et bien
éclairée. Les zones encombrées ou mal
éclairées sont favorables aux accidents.
2. Ne pas utiliser d’outil électrique dans
une atmosphère explosive, telle
qu’en en présence de liquides, de
gaz ou de poussières infl ammables.
Les outils électriques génèrent des
étincelles qui peuvent enfl ammer les
poussières ou les fumées.
3. Tenir les enfants et les personnes
non autorisées à l’écart pendant le
fonctionnement d’un outil électrique.
Un manque d’attention de l’opérateur risque
de lui faire perdre le contrôle de l’outil.
SÉCURITÉ ÉLECTRIQUE
4. La fi che de l’outil électrique doit cor-
respondre à la prise d’alimentation.
Ne jamais modifier la fiche d’une
manière quelconque. Ne pas utiliser
d’adaptateur avec les outils électriques mis à la terre (à la masse).
Des fi ches non modifi ées et des prises
d’alimentation assorties réduisent le
risque de choc électrique.
5. Éviter tout contact corporel avec des
surfaces reliées à la masse ou à la
terre telles que tuyaux, radiateurs,
cuisinières et réfrigérateurs. Un risque
de choc électrique plus élevé existe si le
corps est relié à la masse ou à la terre.
6. Ne pas exposer les outils électriques
à la pluie ou à l’humidité. Le risque de
choc électrique augmente si de l’eau
s’infi ltre dans un outil électrique.
7. Prendre soin du cordon. Ne jamais
utiliser le cordon pour transporter,
tirer ou débrancher l’outil électrique.
Tenir le cordon à l’écart de la chaleur ,
des huiles, des arêtes coupantes ou
des pièces en mouvement. Un cordon
endommagé ou emmêlé présente un
risque accru de choc électrique.
8. Se procurer un cordon d’alimentation
approprié en cas d’utilisation
d’un outil électrique à l’extérieur.
L’utilisation d’un cordon d’alimentation
pour usage extérieur réduit le risque de
choc électrique.
SÉCURITÉ INDIVIDUELLE
9. Être sur ses gardes, être attentif et
faire preuve de bon sens en utilisant
un outil électrique. Ne pas utiliser
un outil électrique en cas de fatigue
ou sous l’influence de drogues,
d’alcool ou de médicaments. Un
instant d’inattention lors de l’utilisation
d’un outil électrique peut entraîner des
blessures graves.
10. Utiliser un équipement de sécurité.
Toujours porter des lunettes de protection. Un équipement de sécurité
comprenant masque anti-poussière,
chaussures de sécurité anti-dérapantes,
casque ou dispositif de protection antibruit peut, dans les circonstances appropriées, réduire le risque de blessure.
11. Éviter tout démarrage accidentel de
l’outil. S’assurer que le commutateur
est en position OFF (Arrêt) avant de
brancher l’outil. Le port de l’outil avec
un doigt sur le commutateur ou son
branchement avec le commutateur en
position ON (Marche) sont favorables
aux accidents.
10 11
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