Makita BHP448 User manual

1
GB Cordless Hammer Driver Drill INSTRUCTION MANUAL
SSladdlös slagborrhammare BRUKSANVISNING
NBatteridrevet slagboremaskin BRUKSANVISNING
FIN Akkuiskuporakone KÄYTTÖOHJE
LV
Bezvada triecienurbjmašīna/skrūvgriezis LIETOŠANAS INSTRUKCIJA
LT Belaidis kalamasis grąžtas NAUDOJIMO INSTRUKCIJA
EE Juhtmeta lööktrell-kruvikeeraja KASUTUSJUHEND
RUS
Аккумуляторная ударная дрель-шуруповерт РУКОВОДСТВО ПО ЭКСПЛУАТАЦИИ
BHP448
BHP458

2
1
2
3
1 012695
1
2 012128
1
3 012699
1
4 012700
1
AB
5 012701
1
6 012702
1
2
7 012736
12
3
8 012735
1
2
9 012714
1
2
34
5
10 012711
1
11 012697
1
2
12 012708

3
1
2
13 012712
123
14 012698 15 012737
1
16 002449
1
17 006258
1
2
18 012705
1
23
19 012706
1
20 012707
1
2
21 006304

4
ENGLISH (Original instructions)
Explanation of general view
1-1. Red indicator
1-2. Button
1-3. Battery cartridge
2-1. Star marking
3-1. Switch trigger
4-1. Lamp
5-1. Reversing switch lever
6-1. Speed change lever
7-1. Action mode changing ring
7-2. Arrow
8-1. Adjusting ring
8-2. Graduation
8-3. Arrow
9-1. Button
9-2. LED indicator
10-1. Groove
10-2. Protrusion
10-3. Steel band
10-4. Grip base
10-5. Side grip
11-1. Sleeve
12-1. Bit holder
12-2. Bit
13-1. Depth rod
13-2. Clamp screw
14-1. Groove
14-2. Hook
14-3. Screw
16-1. Blow-out bulb
17-1. Limit mark
18-1. Rear cover
18-2. Screws
19-1. Arm
19-2. Spring
19-3. Recessed part
20-1. Carbon brush cap
21-1. Hole
21-2. Carbon brush cap
SPECIFICATIONS
Model BHP448 BHP458
Drilling into concrete 14 mm 16 mm
Drilling into steel 13 mm 13 mm
Drilling into wood 65 mm 76 mm
Fastening wood screw 8 mm x 75 mm 10 mm x 90 mm
Capacities
Fasteing machine screw 6 mm
High (2) 0 - 1,800 min-1 0 - 2,000 min-1
No load speed Low (1) 0 - 350 min-1 0 - 400 min-1
High (2) 0 - 27,000 min-1 0 - 30,000 min-1
Blows per minute Low (1) 0 - 5,200 min-1 0 - 6,000 min-1
Overall length 225 mm
Net weight 2.2 kg 2.3 kg
Rated voltage D.C. 14.4 V D.C. 18 V
• Due to our continuing program of research and development, the specifications herein are subject to change without notice.
• Specifications and battery cartridge may differ from country to country.
• Weight, with battery cartridge, according to EPTA-Procedure 01/2003
ENE079-1
Intended use
The tool is intended for impact drilling in brick, concrete
and stone. It is also suitable for screw driving and drilling
without impact in wood, metal, ceramic and plastic.
ENG905-1
Noise
The typical A-weighted noise level determined according
to EN60745:
Model BHP448
Sound pressure level (LpA) : 82 dB(A)
Sound power level (LWA) : 93 dB(A)
Uncertainty (K) : 3 dB(A)
Model BHP458
Sound pressure level (LpA) : 84 dB(A)
Sound power level (LWA) : 95 dB(A)
Uncertainty (K) : 3 dB(A)
Wear ear protection
ENG900-1
Vibration
The vibration total value (tri-axial vector sum)
determined according to EN60745:
Model BHP448
Work mode: impact drilling into concrete
Vibration emission (ah,ID) : 8.5 m/s2
Uncertainty (K) : 1.5 m/s2
Work mode: drilling into metal
Vibration emission (ah,D) : 2.5 m/s2or less
Uncertainty (K) : 1.5 m/s2
Model BHP458
Work mode: impact drilling into concrete
Vibration emission (ah,ID) : 9.5 m/s2

5
Uncertainty (K) : 1.5 m/s2
Work mode: drilling into metal
Vibration emission (ah,D) : 2.5 m/s2or less
Uncertainty (K) : 1.5 m/s2
ENG901-1
• The declared vibration emission value has been
measured in accordance with the standard test
method and may be used for comparing one tool
with another.
• The declared vibration emission value may also be
used in a preliminary assessment of exposure.
WARNING:
• The vibration emission during actual use of the
power tool can differ from the declared emission
value depending on the ways in which the tool is
used.
• Be sure to identify safety measures to protect the
operator that are based on an estimation of
exposure in the actual conditions of use (taking
account of all parts of the operating cycle such as
the times when the tool is switched off and when it
is running idle in addition to the trigger time).
ENH101-15
For European countries only
EC Declaration of Conformity
We Makita Corporation as the responsible
manufacturer declare that the following Makita
machine(s):
Designation of Machine:
Cordless Hammer Driver Drill
Model No./ Type: BHP448,BHP458
are of series production and
Conforms to the following European Directives:
2006/42/EC
And are manufactured in accordance with the following
standards or standardised documents:
EN60745
The technical documentation is kept by our authorised
representative in Europe who is:
Makita International Europe Ltd.
Michigan Drive, Tongwell,
Milton Keynes, Bucks MK15 8JD, England
10.8.2011
000230
Tomoyasu Kato
Director
Makita Corporation
3-11-8, Sumiyoshi-cho,
Anjo, Aichi, 446-8502, JAPAN
GEA010-1
General Power Tool Safety
Warnings
WARNING Read all safety warnings and all
instructions. Failure to follow the warnings and
instructions may result in electric shock, fire and/or
serious injury.
Save all warnings and instructions for
future reference.
GEB056-4
CORDLESS HAMMER DRIVER
DRILL SAFETY WARNINGS
1. Wear ear protectors with impact drilling.
Exposure to noise can cause hearing loss.
2. Use auxiliary handle(s), if supplied with the
tool. Loss of control can cause personal injury.
3.
Hold power tool by insulated gripping surfaces,
when performing an operation where the
cutting accessory may contact hidden wiring.
Cutting accessory contacting a "live" wire may
make exposed metal parts of the power tool "live"
and could give the operator an electric shock.
4. Hold power tool by insulated gripping
surfaces, when performing an operation
where the fastener may contact hidden wiring.
Fasteners contacting a "live" wire may make
exposed metal parts of the power tool "live" and
could give the operator an electric shock.
5. Always be sure you have a firm footing.
Be sure no one is below when using the tool in
high locations.
6. Hold the tool firmly.
7. Keep hands away from rotating parts.
8. Do not leave the tool running. Operate the tool
only when hand-held.
9. Do not touch the bit or the workpiece
immediately after operation; they may be
extremely hot and could burn your skin.
10. Some material contains chemicals which may
be toxic. Take caution to prevent dust
inhalation and skin contact. Follow material
supplier safety data.
SAVE THESE INSTRUCTIONS.
WARNING:
DO NOT let comfort or familiarity with product
(gained from repeated use) replace strict adherence
to safety rules for the subject product. MISUSE or
failure to follow the safety rules stated in this
instruction manual may cause serious personal
injury.

6
ENC007-7
IMPORTANT SAFETY
INSTRUCTIONS
FOR BATTERY CARTRIDGE
1. Before using battery cartridge, read all
instructions and cautionary markings on (1)
battery charger, (2) battery, and (3) product
using battery.
2. Do not disassemble battery cartridge.
3. If operating time has become excessively
shorter, stop operating immediately. It may
result in a risk of overheating, possible burns
and even an explosion.
4. If electrolyte gets into your eyes, rinse them
out with clear water and seek medical
attention right away. It may result in loss of
your eyesight.
5. Do not short the battery cartridge:
(1) Do not touch the terminals with any
conductive material.
(2) Avoid storing battery cartridge in a
container with other metal objects such as
nails, coins, etc.
(3) Do not expose battery cartridge to water
or rain.
A battery short can cause a large current flow,
overheating, possible burns and even a
breakdown.
6. Do not store the tool and battery cartridge in
locations where the temperature may reach or
exceed 50 ﾟC (122 ﾟF).
7.
Do not incinerate the battery cartridge even if it
is severely damaged or is completely worn out.
The battery cartridge can explode in a fire.
8. Be careful not to drop or strike battery.
9. Do not use a damaged battery.
SAVE THESE INSTRUCTIONS.
Tips for maintaining maximum battery life
1. Charge the battery cartridge before
completely discharged.
Always stop tool operation and charge the
battery cartridge when you notice less tool
power.
2.
Never recharge a fully charged battery
cartridge.
Overcharging shortens the battery service life.
3. Charge the battery cartridge with room
temperature at 10 ﾟC - 40 ﾟC (50 ﾟF - 104 ﾟF).
Let a hot battery cartridge cool down before
charging it.
4. Charge the battery cartridge once in every six
months if you do not use it for a long period of
time.
FUNCTIONAL DESCRIPTION
CAUTION:
• Always be sure that the tool is switched off and the
battery cartridge is removed before adjusting or
checking function on the tool.
Installing or removing battery cartridge
Fig.1
CAUTION:
• Always switch off the tool before installing or
removing of the battery cartridge.
To remove the battery cartridge, slide it from the tool
while sliding the button on the front of the cartridge.
To install the battery cartridge, align the tongue on the
battery cartridge with the groove in the housing and slip
it into place. Insert it all the way until it locks in place with
a little click. If you can see the red indicator on the upper
side of the button, it is not locked completely.
CAUTION:
• Always install the battery cartridge fully until the
red indicator cannot be seen. If not, it may
accidentally fall out of the tool, causing injury to
you or someone around you.
• Do not use force when installing the battery
cartridge. If the cartridge does not slide in easily, it
is not being inserted correctly.
Battery protection system (Lithium-ion
battery with star marking)
Fig.2
Lithium-ion batteries with a star marking are equipped
with a protection system. This system automatically cuts
off power to the tool to extend battery life.
The tool will automatically stop during operation if the
tool and/or battery are placed under one of the following
conditions:
• Overloaded:
The tool is operated in a manner that causes
it to draw an abnormally high current.
In this situation, release the switch trigger on
the tool and stop the application that caused
the tool to become overloaded. Then pull the
switch trigger again to restart.
If the tool does not start, the battery is
overheated. In this situation, let the battery
cool before pulling the switch trigger again.
• Low battery voltage:
The remaining battery capacity is too low and
the tool will not operate. In this situation,
remove and recharge the battery.

7
Switch action
Fig.3
CAUTION:
• Before inserting the battery cartridge into the tool,
always check to see that the switch trigger
actuates properly and returns to the "OFF" position
when released.
To start the tool, simply pull the switch trigger. Tool
speed is increased by increasing pressure on the switch
trigger. Release the switch trigger to stop.
Lighting up the front lamp
Fig.4
CAUTION:
• Do not look in the light or see the source of light
directly.
Pull the switch trigger to light up the lamp. The lamp keeps
on lighting while the switch trigger is being pulled. The
lamp goes out 10 -15 seconds after releasing the trigger.
NOTE:
• Use a dry cloth to wipe the dirt off the lens of lamp.
Be careful not to scratch the lens of lamp, or it may
lower the illumination.
Reversing switch action
Fig.5
This tool has a reversing switch to change the direction
of rotation. Depress the reversing switch lever from the A
side for clockwise rotation or from the B side for
counterclockwise rotation.
When the reversing switch lever is in the neutral position,
the switch trigger cannot be pulled.
CAUTION:
• Always check the direction of rotation before
operation.
• Use the reversing switch only after the tool comes
to a complete stop. Changing the direction of
rotation before the tool stops may damage the tool.
• When not operating the tool, always set the
reversing switch lever to the neutral position.
Speed change
Fig.6
To change the speed, first switch off the tool and then
slide the speed change lever to the "2" side for high
speed or, "1" side for low speed. Be sure that the speed
change lever is set to the correct position before
operation. Use the right speed for your job.
CAUTION:
• Always set the speed change lever fully to the
correct position. If you operate the tool with the
speed change lever positioned halfway between the
"1" side and , "2" side, the tool may be damaged.
• Do not use the speed change lever while the tool is
running. The tool may be damaged.
Selecting the action mode
Fig.7
This tool employs an action mode changing ring. Select
one of the three modes suitable for your work needs by
using this ring.
For rotation only, turn the ring so that the arrow on the
tool body points toward the mark on the ring.
For rotation with hammering, turn the ring so that the
arrow points toward the mark on the ring.
For rotation with clutch, turn the ring so that the arrow
points toward the mark on the ring.
CAUTION:
• Always set the ring correctly to your desired mode
mark. If you operate the tool with the ring
positioned halfway between the mode marks, the
tool may be damaged.
Adjusting the fastening torque (screwdriver
mode " ")
Fig.8
The fastening torque can be adjusted in 21 steps by
turning the adjusting ring so that its graduations are
aligned with the pointer on the tool body.
First, slide the action mode change lever to the position
of symbol.
The fastening torque is minimum when the number 1 is
aligned with the pointer, and maximum when the
marking is aligned with the pointer. The clutch will slip at
various torque levels when set at the number 1 to 21.
Before actual operation, drive a trial screw into your
material or a piece of duplicate material to determine
which torque level is required for a particular application.
NOTE:
• The adjusting ring does not lock when the pointer is
positioned only halfway between the graduations.

8
Empty signal for remaining
battery capacity
Fig.9
Stop the tool and with the tool stopped press the button
on the switch panel and the remaining battery capacity
will be signaled on the panel.
The status displayed on the switch panel and the
remaining battery capacity is shown in the following table.
LED indicator status Remaining battery capacity
About 50% or more
About 20% - 50%
About less than 20%
012023
NOTE:
• Before checking the remaining battery capacity, be
sure to stop the tool.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and the
battery cartridge is removed before carrying out
any work on the tool.
Installing side grip (auxiliary handle)
Fig.10
Always use the side grip to ensure operating safety.
Insert the side grip so that the protrusions on the grip
base and steel band fit in between the grooves on the
tool barrel. Then tighten the grip by turning clockwise.
When you turn the side grip, loosen and remove the grip,
then turn the grip and insert it again.
Installing or removing driver bit or drill bit
Fig.11
Turn the sleeve counterclockwise to open the chuck
jaws. Place the bit in the chuck as far as it will go. Turn
the sleeve clockwise to tighten the chuck. To remove the
bit, turn the sleeve counterclockwise.
Installing bit holder
Fig.12
Fit the bit holder into the protrusion at the tool foot on
either right or left side and secure it with a screw.
When not using the driver bit, keep it in the bit holders.
Bits 45 mm long can be kept there.
Adjustable depth rod
Fig.13
The adjustable depth rod is used to drill holes of uniform
depth. Loosen the clamp screw, set to desired position,
then tighten the clamp screw.
Hook
Fig.14
The hook is convenient for temporarily hanging the tool.
This can be installed on either side of the tool.
To install the hook, insert it into a groove in the tool
housing on either side and then secure it with a screw.
To remove, loosen the screw and then take it out.
OPERATION
Fig.15
Hammer drilling operation
CAUTION:
• There is a tremendous and sudden twisting force
exerted on the tool/bit at the time of hole
break-through, when the hole becomes clogged
with chips and particles, or when striking
reinforcing rods embedded in the concrete. Always
use the side grip (auxiliary handle) and firmly hold
the tool by both side grip and switch handle during
operations. Failure to do so may result in the loss
of control of the tool and potentially severe injury.
First, slide the action mode change lever so that it points
to the marking. The adjusting ring can be aligned in
any torque levels for this operation.
Be sure to use a tungsten-carbide tipped bit.
Position the bit at the desired location for the hole, then
pull the switch trigger. Do not force the tool. Light
pressure gives best results. Keep the tool in position and
prevent it from slipping away from the hole.
Do not apply more pressure when the hole becomes
clogged with chips or particles. Instead, run the tool at
an idle, then remove the bit partially from the hole. By
repeating this several times, the hole will be cleaned out
and normal drilling may be resumed.
Blow-out bulb (optional accessory)
Fig.16
After drilling the hole, use the blow-out bulb to clean the
dust out of the hole.
Screwdriving operation
First, slide the action mode change lever so that it points
to the marking. Adjust the adjusting ring to the proper
torque level for your work. Then proceed as follows.
Place the point of the driver bit in the screw head and
apply pressure to the tool. Start the tool slowly and then
increase the speed gradually. Release the switch trigger
as soon as the clutch cuts in.

9
NOTE:
• Make sure that the driver bit is inserted straight in
the screw head, or the screw and/or bit may be
damaged.
• When driving wood screw, predrill a pilot hole 2/3
the diameter of the screw. It makes driving easier
and prevents splitting of the workpiece.
• If the tool is operated continuously until the battery
cartridge has discharged, allow the tool to rest for
15 minutes before proceeding with a fresh battery.
Drilling operation
CAUTION:
• Pressing excessively on the tool will not speed up
the drilling. In fact, this excessive pressure will only
serve to damage the tip of your bit, decrease the
tool performance and shorten the service life of the
tool.
• There is a tremendous force exerted on the tool/bit
at the time of hole break through. Hold the tool
firmly and exert care when the bit begins to break
through the workpiece.
• A stuck bit can be removed simply by setting the
reversing switch to reverse rotation in order to back
out. However, the tool may back out abruptly if you
do not hold it firmly.
• Always secure small workpieces in a vise or similar
hold-down device.
• If the tool is operated continuously until the battery
cartridge has discharged, allow the tool to rest for
15 minutes before proceeding with a fresh battery.
First, slide the action mode change lever so that it points to
the marking. The adjusting ring can be aligned in any
torque levels for this operation. Then proceed as follows.
Drilling in wood
When drilling in wood, the best results are obtained with
wood drills equipped with a guide screw. The guide screw
makes drilling easier by pulling the bit into the workpiece.
Drilling in metal
To prevent the bit from slipping when starting a hole, make
an indentation with a center-punch and hammer at the
point to be drilled. Place the point of the bit in the
indentation and start drilling.
Use a cutting lubricant when drilling metals. The
exceptions are iron and brass which should be drilled dry.
MAINTENANCE
CAUTION:
• Always be sure that the tool is switched off and the
battery cartridge is removed before attempting to
perform inspection or maintenance.
• Never use gasoline, benzine, thinner, alcohol or
the like. Discoloration, deformation or cracks may
result.
Replacing carbon brushes
Fig.17
Replace when they wear down to the limit mark. Keep
the carbon brushes clean and free to slip in the holders.
Both carbon brushes should be replaced at the same
time. Use only identical carbon brushes.
Fig.18
Use a screwdriver to remove two screws then remove
the rear cover.
Fig.19
Raise the arm part of the spring and then place it in the
recessed part of the housing with a slotted bit
screwdriver of slender shaft or the like.
Fig.20
Use pliers to remove the carbon brush caps of the carbon
brushes. Take out the worn carbon brushes, insert the
new ones and replace the carbon brush caps in reverse.
Fig.21
Make sure that the carbon brush caps have fit into the
holes in brush holders securely.
Reinstall the rear cover and tighten two screws securely.
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be
performed by Makita Authorized Service Centers,
always using Makita replacement parts.
OPTIONAL ACCESSORIES
CAUTION:
• These accessories or attachments are
recommended for use with your Makita tool
specified in this manual. The use of any other
accessories or attachments might present a risk of
injury to persons. Only use accessory or
attachment for its stated purpose.
If you need any assistance for more details regarding
these accessories, ask your local Makita Service Center.
• Drill bits
• Hammer drill bits
• Screw bits
• Blow-out bulb
• Safety goggles
• Makita genuine battery and charger
• Grip assembly
• Depth rod
• Hook
• Rubber pad assembly
• Wool bonnet
• Foam polishing pad
• Battery protector
NOTE:
• Some items in the list may be included in the tool
package as standard accessories. They may differ
from country to country.