Hitachi DH 25DL Handling Instructions Manual

Cordless Rotary Hammer

충전 햄어드릴

Máy khoan búa dùng pin



DH 25DL

•

DH 25DAL

DH 36DL

•

DH 36DAL

Handling instructions Hướng dẫn sử dụng



취급 설명서

DH36DAL

Read through carefully and understand these instructions before use.

본 설명서를 자세히 읽고 내용을 숙지한 뒤 제품을 사용하십시오.

Đọc kỹ và hiểu rõ các hướng dẫn này trước khi sử dụng.



2

12

34

56

78

3

4

1

2

#

8

9

0

1

$

5

7

6

$

%

@

^

!

^

#

*

&

9

0

(

w

e

) q

(

w

e

(a) (b)

3

910

11 12

13 14

15 16

p

f

o

s

r

d

%

^

u

g

i

[ ]

a

(a)

t

(b)

y

r

h

d

%

^

k

j

l

%

^

$

#

z

l

v

c

x

;

4

English

한국어

1

Rechargeable battery

충전식 배터리

2

Latch

래치

3

Guide rail of battery

배터리의 가이드 레일

4

Push

누름

5

Battery cover

배터리 커버

6

Terminals

단자

7

Ventilation hole

통풍구

8

Housing

하우징

9

Pull out

잡아당김

0

Insert

삽입

!

Guide rail of housing

하우징의 가이드 레일

@

Pilot lamp

파일럿 램프

#

Drill bit

드릴 비트

$

Part of SDS-plus shank

SDS-플러스 생크의 일부

%

Front cap

프런트 캡

^

Grip

그립

&

Dust

cup

더스트 컵

*

Dust collector (B)

집진기 (B)

(

Change lever

전환 레버

)

"

" mark " " 표시

q

"

" mark " " 표시

w

" " mark " " 표시

e

"

" mark

"

" 표시

r

Push button

푸시 버튼

t

Forward rotation

정회전

y

Reverse rotation

역회전

u

Push the

side

측을 누름

i

Push the

side

측을 누름

o

indication

표시

p

indication

표시

a

Diagram seen from the handle side

핸들쪽에서 바라본 다이어그램

s

Drill chuck

드릴 척

d

Chuck adaptor

척 어댑터

f

Depth gauge

깊이 게이지

g

Mounting hole

장착 구멍

h

Side handle

사이드 핸들

j

Bit

비트

k

Socket

소켓

l

Taper shank adapter

테이퍼 생크 어댑터

;

Cotter

코터

z

Rest

지지대

x

Shift knob

변속 노브

c

"POWER" mode

"파워" 모드

v

"SAVE" mode

"절전" 모드

5

Tiếng Việt



1

Pin sạc



2

Chốt



3

Rãnh trượt của pin



4

Đẩy



5

Nắp pin



6

Đầu cuối



7

Các lỗ thông gió



8

Vỏ máy



9

Kéo ra



0

Chèn



!

Rãnh trượt của vỏ máy



@

Đèn báo



#

Đầu khoan



$

Bộ phận chuôi SDS chữ thập

 SDS-plus

%

Nắp trước



^

Kẹp giữ



&

Cốc bụi



*

Bộ thu bụi (B)

 (B)

(

Cần chuyển đổi



)

Dấu "

"

 “ ”

q

Dấu "

"

 “ ”

w

Dấu "

"

 “ ”

e

Dấu "

"

 “ ”

r

Nút ấn



t

Chuyển động quay về trước



y

Chuyển động quay ngược lại



u

Ấn bên phải



i

Ấn bên trái



o

Ký hiệu bên phải



p

Ký hiệu bên trái



a

Sơ đồ nhìn từ phía tay nắm



s

Đầu cặp mũi khoan



d

Đầu tiếp hợp đầu cặp mũi khoan



f

Thước đo độ sâu



g

Lỗ gắn



h

Tay nắm phụ



j

Mũi khoan



k

Khớp nối



l

Đầu tiếp hợp chuôi côn



;

Chốt giữ



z

Trụ đỡ



x

Núm sang số



c

Chế độ "POWER"

 “”

v

Chế độ "SAVE"

 “”

English

6

GENERAL SAFETY RULES

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

1) Work area

a) Keep work area clean and well lit.

Cluttered and dark areas invite accidents.

b) Do not operate power tools in explosive

atmospheres, such as in the presence of

ﬂ ammable liquids, gases or dust.

Power tools create sparks which may ignite the dust

of fumes.

c) Keep children and bystanders away while

operating a power tool.

Distractions can cause you to lose control.

2) Electrical safety

a) 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.

b) 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.

c) Do not expose power tools to rain or wet

conditions.

Water entering a power tool will increase the risk of

electric shock.

d) 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.

e) When operating a power tool outdoors, use an

extension cord suitable for outdoor use.

Use of a cord suitable for outdoor use reduces the

risk of electric shock.

3) Personal safety

a) Stay alert, watch what you are doing 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.

b) 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.

c) Avoid accidental starting. Ensure the switch is in

the oﬀ position before plugging in.

Carrying power tools with your ﬁ nger on the switch or

plugging in power tools that have the switch on invites

accidents.

d) 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.

e) Do not overreach. Keep proper footing and

balance at all times.

This enables better control of the power tool in

unexpected situations.

f) 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.

g) If devices are provided for the connection of

dust extraction and collection facilities, ensure

these are connected and properly used.

Use of these devices can reduce dust related

hazards.

4) Power tool use and care

a) 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.

b) 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.

c) Disconnect the plug from the power source

before making any adjustments, changing

accessories, or storing power tools.

Such preventive safety measures reduce the risk of

starting the power tool accidentally.

d) Store idle power tools out of the reach of children

and do not allow persons unfamiliar with the

power tool or these instructions to operate the

power tool.

Power tools are dangerous in the hands of untrained

users.

e) Maintain power tools. Check for misalignment or

binding of moving parts, breakage of parts and

any other condition that may aﬀ ect the power

tools’ operation.

If damaged, have the power tool repaired before

use.

Many accidents are caused by poorly maintained

power tools.

f) Keep cutting tools sharp and clean.

Properly maintained cutting tools with sharp cutting

edges are less likely to bind and are easier to control.

g) 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 diﬀ erent from

intended could result in a hazardous situation.

5) Battery tool use and care

a) Ensure the switch is in the oﬀ position before

inserting battery pack.

Inserting the battery pack into power tools that have

the switch on invites accidents.

b) Recharge only with the charger speciﬁ ed by the

manufacturer.

A charger that is suitable for one type of battery pack

may create a risk of ﬁ re when used with another

battery pack.

c) Use power tools only with speciﬁ cally designated

battery packs.

Use of any other battery packs may create a risk of

injury and ﬁ re.

English

7

d) When battery pack is not in use, keep it away

from other metal objects like paper clips, coins,

keys, nails, screws, or other small metal objects

that can make a connection from one terminal to

another.

Shorting the battery terminals together may cause

burns or a ﬁ re.

e) Under abusive conditions, liquid may be ejected

from the battery; avoid contact. If contact

accidentally occurs, ﬂ ush with water. If liquid

contacts eyes, additionally seek medical help.

Liquid ejected from the battery may cause irritation or

burns.

6) Service

a) 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.

PRECAUTION

Keep children and inﬁ rm persons away.

When not in use, tools should be stored out of reach of

children and inﬁ rm persons.

CORDLESS ROTARY HAMMER SAFETY

WARNINGS

1. Wear ear protectors.

Exposure to noise can cause hearing loss.

2. Use auxiliary handles supplied with the tool.

Loss of control can cause personal injury.

3. Always charge the battery at a temperature of 0 – 40°C.

A temperature of less than 0°C will result in over charging

which is dangerous. The battery cannot be charged at a

temperature

higher than 40°C.

The most suitable temperature for charging is that of 20 –

25°C.

4. Do not use the charger continuously.

When one charging is completed, leave the charger for

about 15 minutes before the next charging of battery.

5. Do not allow foreign matter to enter the hole for

connecting the rechargeable battery.

6. Never disassemble the rechargeable battery and

charger.

7. Never short-circuit the rechargeable battery. Short-

circuiting the battery will cause a great electric current

and overheat. It results in burn or damage to the battery.

8. Do not dispose of the battery in ﬁ re.

If the battery is burnt,

it may explode.

9. When using this unit continuously, the unit may overheat,

leading to damage in the motor and switch. Please leave

it without using it for approximately 15 minutes.

10. Do not insert object into the air ventilation slots of the

charger.

Inserting metal objects or inﬂ ammables into

the charger

air ventilation slots will result in electrical shock hazard or

damaged charger.

11. Using an exhausted battery will damage the charger.

12. When drilling in wall, ﬂ oor or ceiling, check for buried

electric power cord, etc.

13. Bring the battery to the shop from which it was purchased

as soon

as the post-charging battery life becomes too

short for practical use. Do not dispose of the exhausted

battery.

14. Do not touch the bit during or immediately after operation.

The bit becomes very hot during operation and could

cause serious burns.

15. Always hold the body handle and side handle of the

power tool ﬁ rmly. Otherwise the counterforce produced

may result in inaccurate and even dangerous operation.

16. Wear a dust mask

Do not inhale the harmful dusts generated in drilling or

chiseling operation. The dust can endanger the health of

yourself

and bystandersy.

CAUTION ON LITHIUM-ION BATTERY

To extend the lifetime, the lithium-ion battery equips with the

protection function to stop the output.

In the cases of 1 and 2 described below, when using this

product, even if you are pulling the switch, the motor may

stop. This is not the trouble but the result of protection

function.

1.

When the battery power remaining runs out, the motor

stops.

In such case, charge it up immediately.

2. If the tool is overloaded, the motor may stop. In this

case, release the switch of tool and eliminate causes of

overloading. After that, you can use it again.

Furthermore, please heed the following

warning and caution.

WARNING

In order to prevent any battery leakage, heat generation,

smoke emission, explosion and ignition beforehand, please

be sure to heed the following precautions.

1. Make sure that swarf and dust do not collect on the

battery.

○ During work make sure that swarf and dust do not fall on

the battery.

○ Make sure that any swarf and dust falling on the power

tool during work do not collect on the battery.

○ Do not store an unused battery in a location exposed to

swarf and dust.

○ Before storing a battery, remove any swarf and dust that

may adhere to it and

do not store it together with metal

parts (screws, nails, etc.).

2. Do not pierce battery with a sharp object such as a

nail, strike with a hammer, step on, throw or subject the

battery to severe physical shock.

3. Do not use an apparently damaged or deformed battery.

4. Do

not use the battery in reverse polarity.

5. Do not connect directly to an electrical outlets or car

cigarette lighter sockets.

6. Do not use the battery for a purpose other than those

speciﬁ ed.

7. If the battery charging fails to complete even when a

speciﬁ ed recharging time has elapsed,

immediately stop

further recharging.

8. Do not put or subject the battery to high temperatures or

high pressure such as into a microwave oven, dryer, or

high pressure container.

9. Keep away from ﬁ re immediately when leakage or foul

odor are detected.

10. Do not use in a location where strong static

electricity

generates.

11. If there is battery leakage, foul odor, heat generated,

discolored or deformed, or in any way appears abnormal

during use, recharging or storage, immediately remove it

from the equipment or battery charger, and stop use.

CAUTION

1. If liquid leaking from the battery gets into your eyes, do not

rub your eyes and wash them well with fresh clean water

such as tap water and contact a doctor immediately.

If left untreated, the liquid may cause eye-problems.

2. If liquid leaks onto your skin or clothes, wash well with

clean water such as tap water immediately.

There is a possibility

that this can cause skin irritation.

English

8

3. If you ﬁ nd rust, foul odor, overheating, discolor,

deformation, and/or other irregularities when using the

battery for the ﬁ rst time, do not use and return it to your

supplier or vendor.

WARNING

If an electrically conductive foreign object enters the terminals

of the lithium ion battery, a short-circuit may occur resulting

in the risk of ﬁ re. Please observe the following matters when

storing the battery.

○ Do not place electrically conductive cuttings, nails,

steel wire, copper wire or other wire in the storage

case.

○ Either install the battery in the power tool or store

by securely pressing into the battery cover until the

ventilation holes are concealed to prevent short-

circuits (See Fig. 1).

SPECIFICATIONS

POWER TOOL

Model DH25DL DH25DAL DH36DL DH36DAL

No-load speed Save/Power 0 – 550 /min / 0 – 1100 /min

Full-load impact rate Save/Power 0 – 2250 /min / 0 – 4500 /min

Capacity

Drilling

Concrete 26 mm

Steel 13 mm

Wood 30 mm

Driving Wood screw 6.2 mm (diameter) × 40 mm (length)

Rechargeable battery BSL2530: Li-ion 25.2 V (3.0 Ah 14 cells)

BSL3626: Li-ion 36 V

(2.6 Ah 20 cells)

Weight 3.5 kg 3.6 kg 3.9 kg 4.0 kg

○ Do not use the “SAVE” mode when boring holes with the wood drill. There is a likelihood that the motor will burn out.

CHARGER

Model UC36YRL

Charging voltage 25.2 V 36 V

Weight 0.9 kg

STANDARD ACCESSORIES

DH25DL (2SLRK)

DH25DAL (2SLRK)

3

4

1

2

5

6

1 Side handle ...............................................................................................................................1

2 Depth gauge .............................................................................................................................1

3 Charger .....................................................................................................................................1

4 Plastic case ...............................................................................................................................1

5 Extra battery ..............................................................................................................................1

6 Battery cover .............................................................................................................................1

English

9

DH36DL (2SLRK)

DH36DAL (2SLRK)

3

4

1

2

5

6

1 Side handle ...............................................................................................................................1

2 Depth gauge .............................................................................................................................1

3 Charger .....................................................................................................................................1

4 Plastic case ...............................................................................................................................1

5 Extra battery ..............................................................................................................................1

6 Battery cover .............................................................................................................................1

Standard accessories are subject to change without notice.

OPTIONAL ACCESSORIES (sold separately)

1. Battery (BSL2530, BSL3626)

It may be convenient to prepare some extra batteries.

2. Drilling anchor holes (rotation + hammering)

○ Drill bit (taper shank) and taper shank adapter

Drill bit (taper shank)

Taper shank adapter

(SDS plus shank)

Cotter

Drill bit

Outer diameter

11.0 mm

12.3 mm

12.7 mm

14.3 mm

14.5 mm

17.5 mm

21.5 mm

Taper shank adapter

Taper mode Applicable drill bit

Morse taper

(No. 1)

Drill bit (taper shank) 11.0 – 17.5 mm

Morse taper

(No. 2)

Drill bit (taper shank) 21.5 mm

A-taper

Taper shank adapter formed A-taper

or B-taper is provided as an optional

accessory, but drill bit for it is not provided.

B-taper

○ 13 mm Hammer

Drill chuck and Chuck wrench

13 mm Hammer

Drill Chuck

(SDS plus shank)

Chuck wrench

Impact Drill Application

Straight Shank Bit

()

3. Anchor setting (rotation + hammering)

○ Anchor setting adapter (for rotary hammer)

Anchor setting adapter

(for rotary hammer)

(SDS plus shank)

Anchor size

W1/4"

W5/16"

W3/8"

○ Anchor setting adapter (for manual hammer)

Anchor setting adapter

(for manual hammer)

Anchor size

W1/4"

W5/16"

W3/8"

W1/2"

W5/8"

4. Bolt placing operation with Chemical Anchor.

(rotation + hammering)

(SDS plus shank)

12.7 mm Chemical Anchor Adapter

19 mm Chemical Anchor Adapter

Standard socket

on the market

()

English

10

5. Demolishing operation (Hammering only)

(Model DH25DAL and DH36DAL only)

Bull point (Round type) (SDS-plus shank)

Bull point (Square type) (SDS-plus shank)

6. Groove digging and edging (Hammering only)

Cold chisel (SDS-plus shank) (Model DH25DAL and

DH36DAL only)

Cutter (SDS-plus shank) (Model DH25DAL and

DH36DAL only)

7. Grooving (Hammering only)

Grooving chisel (SDS-plus shank) (Model DH25DAL and

DH36DAL only)

8. Drilling holes and driving screws (rotation only)

○ Drill chuck, chuck adapter (G) and chuck wrench

Special

screw

Drill chuck (13VLR)

Chuck adapter (G)

(SDS plus shank)

Chuck wrench

9. Drilling holes (rotation only)

Drill chuck (13VLA)

Chuck adapter (D)

(SDS plus shank)

Chuck wrench

○ 13 mm drill chuck ass’y (include chuck wrench ass’y) and

chuck (for drilling in steel or wood).

10. Driving Screws (rotation only)

Bit No.

Chuck adapter (D)

(SDS plus shank)

Bit No. Screw Size Length

No. 23 – 5 mm 25 mm

No. 35 – 8 mm 25 mm

11. Dust cup, Dust collector (B)

Dust cup

Dust collector (B)

Optional accessories are subject to change without notice.

APPLICATIONS

Rotation and hammering function

○ Drilling anchor holes

○ Drilling holes in concrete

○ Drilling holes in tile

Rotation only function

○ Drilling in steel or wood

(with optional accessories)

○ Tightening machine screws, wood screws

(with optional accessories)

Hammering only function (Model DH25DAL and DH36DAL

only)

○ Light-duty chiselling of concrete, groove

digging and

edging.

BATTERY REMOVAL/INSTALLATION

1. Battery removal

Hold the handle tightly and push the battery latches to

remove the battery (see Figs. 1 and 2).

CAUTION

Never short-circuit the battery.

2. Battery installation

Insert the battery aligning both guide rail of battery and

body. Make sure the battery is ﬁ xed ﬁ rmly.

CHARGING

Before using the power tool, charge the battery as follows.

1. Connect the charger’s power cord to a receptacle

When the power cord is connected, the charger’s pilot

lamp will blink in red (At 1-second intervals).

2. Insert the battery into the charger

Insert the battery ﬁ rmly, until it contacts the bottom of the

charger compartment.

CAUTION

If the battery is inserted in the reverse direction, not

only

recharging will become impossible, but it may also cause

problems in the charger such as deformed recharging

terminal.

3. Charging

When inserting a battery in the charger, charging will

commence and the pilot lamp will light up continuously in

red.

When the battery becomes fully recharged, the pilot lamp

will blink

in red (At 1-second intervals). (See Table 1)

(1) Pilot lamp indication

The indications of the pilot lamp will be as shown in

Table 1, according to the condition of the charger or the

rechargeable battery.

English

11

Table 1

Indications of the lamp

Before

charging

Blinks

(RED)

Lights for 0.5 seconds. Does not light for 0.5 seconds.

(oﬀ for 0.5 seconds)

While

charging

Lights

(RED)

Lights continuously

Charging

complete

Blinks

(RED)

Lights for 0.5 seconds. Does not light for 0.5 seconds.

(oﬀ for 0.5 seconds)

Charging

impossible

Flickers

(RED)

Lights for 0.1 seconds. Does not light for 0.1 seconds.

(oﬀ for 0.1 seconds)

Malfunction in the battery or

the charger

Overheat

standby

Lights

(GREEN)

Lights continuously

Battery overheated.

Unable to charge.

(Charging will commence

when battery cools)

NOTE: When standby for cooling battery, UC36YRL cools the overheated battery by cooling fan.

Regarding electric discharge in case of new batteries,

etc.

As the internal chemical substance of new batteries and

batteries that have not been used for an extended period

is not activated, the electric discharge might be low when

using them the ﬁ rst and second time. This is a temporary

phenomenon, and normal time required for recharging

will be

restored by recharging the batteries 2 – 3 times.

How to make the batteries perform longer.

(1) Recharge the batteries before they become completely

exhausted.

When you feel that the power of the tool becomes

weaker, stop using the tool and recharge its battery. If

you continue to use the tool and exhaust the electric

current, the battery may be damaged and its life will

become

shorter.

(2) Avoid recharging at high temperatures.

A rechargeable battery will be hot immediately after use.

If such a battery is recharged immediately after use, its

internal chemical substance will deteriorate, and the

battery life will be shortened. Leave the battery and

recharge it after it has cooled for a

while.

PRIOR TO OPERATION

1. Mounting the drill bit (Fig. 4, 5)

CAUTION

To prevent accidents, make sure to turn the switch oﬀ .

NOTE:

When using tools such as drill bits, etc., make sure to use

the genuine parts designated by our company.

(1) Clean the shank portion of the drill bit.

(2) Insert the drill bit in a twisting manner into

the tool holder

until it latches itself. (Fig. 4)

(3) Check the latching by pulling on the drill bit.

(4) To remove the drill bit, fully pull the grip in the direction of

the arrow and pull out the drill bit.

2. Conﬁ rm that the battery is mounted correctly

3. Installation of dust cup or dust collector (B)

(Optional accessories) (Fig. 6, Fig. 7)

When using a rotary hammer for upward drilling

operations attach a dust cup or a dust collector (B) to

collect dust or particles for easy operation.

(2) Regarding the temperatures of the rechargeable battery

The temperatures for rechargeable batteries are as

shown in Table 2, and batteries that have become hot

should be cooled for a while before being

recharged.

Table 2 Recharging ranges of batteries

Charger

Rechargeable batteries

UC36YRL

BSL2530, BSL3626 0°C – 50°C

(3) Regarding recharging time

Depending on the type of the battery, the charging time

will become as shown in Table 3.

Table 3 Charging time (At 20°C)

Battery type Recharging time

BSL2530 Approx. 60 min.

BSL3626 Approx. 80 min.

NOTE: The charging time may vary according to ambient

temperature and power source voltage.

4. Disconnect the charger’s power cord from the

receptacle

5. Hold the charger ﬁ rmly and pull out the battery

NOTE:

Be sure to pull out the battery from the charger after use,

and then keep it.

CAUTION

○ If the battery is charged while it is heated because it

has

been left for a long time in a location subject to direct

sunlight or because the battery has just been used, the

pilot lamp of the charger lights up green. In such a case,

ﬁ rst let the battery cool, then start charging.

○ When the pilot lamp ﬂ ickers in

red quickly (at 0.2 –

second intervals), check for and take out any foreign

objects in the charger’s battery installation hole. If there

are no foreign objects, it is probable that the battery or

charger is malfunctioning. Take it to your Authorized

Service Center.

○ Since the built-in micro computer

takes about 3 seconds

to conﬁ rm that the battery being charged with UC36YRL

is taken out, wait for a minimum of 3 seconds before

reinserting it to continue charging. If the battery is

reinserted within 3 seconds, the battery may not be

properly charged.

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12

○ Installing the dust cup

Use the dust cup by attaching to the drill bit as shown in

Fig. 6.

When using a bit which has big diameter, enlarge the

center hole of the dust cup with this rotary hammer.

○ Installing dust collector (B)

When using dust collector (B),

insert dust collector (B)

from the tip of the bit by aligning it to the groove on the

grip. (Fig. 7).

CAUTION

○ The dust cup and dust collector (B) are for exclusive use

of concrete drilling work. Do not use them for wood or

metal drilling work.

○ Insert dust collector (B

) completely into the chuck part of

the main unit.

○ When turning the rotary hammer on while dust collector

(B) is detached from a concrete surface, dust collector

(B) will rotate together with the drill bit. Make sure to turn

on the switch after pressing dust cup on the concrete

surface. When using dust collector (B) attached to a

drill bit that has more than 190 mm of overall length,

dust collector (B) cannot touch the concrete surface and

will rotate. Therefore, please use dust collector (B) by

attaching to drill bits which have 166 mm, 160 mm, and

110

mm overall length.

○ Dump particles after every two or three holes when

drilling.

○ Please replace the drill bit after removing dust collector

(B).

4. Selecting the driver bit

Screw heads or bits will be damaged unless a bit

appropriate for the screw diameter is employed to drive

in the screws.

5. Conﬁ rm the direction of bit rotation (Fig. 9)

The bit

rotates clockwise (viewed from the rear side) by

pushing the R-side of the push button. (Fig. 9-a)

The L-side of the push button is pushed to turn the bit

counterclockwise. (Fig. 9-b)

6. Continuous drilling

The number of holes that can be drilled in concrete after

one recharge is shown in Table 4.

Table 4

Bit dia.

(mm)

Depth

(mm)

Possible continuous drilling number

(holes)

DH25DL / DH25DAL DH36DL / DH36DAL

6.5

60

115 160

8.5 70 90

12.5 55 65

14.5 45 55

18 25 40

24 12 16

26 7 8

These data are for the referential values. The number of

holes that can be drilled varies according to the sharpness

of the used bit or the conditions of the concrete being drilled.

CAUTION

When using this unit continuously, the unit may overheat,

leading to damage in the motor

and switch.

Please leave it without using it for approximately 15

minutes.

HOW TO USE

CAUTION on lithium-ion battery

To extend the lifetime, the lithium-ion battery equips with

the protection function to stop the output. Therefore, if the

tool is overloaded, the motor may stop. However, this is

not the trouble but the result of protection function. In this

case, release the switch of tool and eliminate the causes of

overloading.

1. Switch operation

○ When the switch trigger is depressed, the tool rotates.

When the switch trigger is released, the tool stops.

○ The rotational speed of the rotary hammer can be

controlled by varying the amount that the switch trigger

is pulled. Speed is low when the switch trigger is pulled

slightly and

increases as the switch trigger is pulled

more.

○ When releasing the switch trigger, the brake will be

applied for immediate stopping.

2. Rotation + Hammering

Align the “

” mark with the “ ” mark by rotating the

change lever to set the “Rotation + Hammering” function.

(Fig. 8-a, Fig. 8-b)

(1) Mount the drill bit.

(2) Pull the trigger switch after applying the drill bit tip to the

drilling position. (Fig. 10)

(3) Pushing the rotary hammer forcibly is not necessary at

all.

Pushing slightly so that drill dust comes out gradually

is just suﬃ cient.

CAUTION

When the drill bit touches construction iron bar, the bit

will stop immediately and the rotary hammer will react

to revolve. Therefore please grip the side handle and

handle tightly as shown in Fig. 10.

3. Rotation only

Align the “

” mark with the “ ” mark by rotating the

change lever to set the “Rotation only” function. (Fig. 8-a,

Fig. 8-b)

To drill a wood or metal material using the optional drill

chuck and chuck adapter, proceed as follows. Installing

drill chuck and chuck adapter: (Fig. 11)

(1) Attach the drill chuck to the chuck adaptor.

(2) The part of the SDS-plus shank is the same as the drill

bit. Therefore, refer to the item of “Mounting the drill bit”

for attaching it.

CAUTION

○ Application of force more than necessary will not only

expedite work at all, but will deteriorate the tip edge of the

drill bit

and reduce the service life of the rotary hammer in

addition.

○ Drill bit may snap oﬀ while withdrawing the rotary hammer

from the drilled hole. For withdrawing, it is important to

use a pushing motion.

○ Do not attempt to use the rotary hammer in the rotation

and striking mode

with the drill chuck and chuck adapter

attached. This would seriously shorten the service life of

every component of the machine.

4. When driving wood screws (Fig. 13)

(1) Selecting a suitable driver bit

Employ plus-head screws, if possible, since the driver bit

easily slips oﬀ the heads of slotted-head screws.

(2) Tightening wood screws

Prior to

tightening wood screws, make pilot holes suitable

for them in the wooden board. Apply the bit to the screw

head grooves and gently drive the screws in the holes.

English

13

CAUTION

Exercise care in preparing a pilot hole suitable for

the wood screw taking the hardness of the wood into

consideration. Should the hole be excessively small or

shallow, requiring much power to drive the screw into

it, the thread of the wood screw may sometimes be

damaged.

5. Hammering only

Align the “

” mark with the “ ” mark by rotating the

change lever to set the “Hammering only” function.

(Fig. 8-a)

(1) Mount the bull point or cold chisel.

6. Using depth gauge (Fig. 12)

(1) Loosen the knob on the side handle, and insert the depth

gauge into the mounting hole on the side handle.

(2) Adjust the depth gauge position

according to the depth of

the hole and tighten the knob bolt securely.

7. How to use the drill bit (taper shank) and the taper

shank adapter

(1) Mount the taper shank adapter to the rotary hammer.

(Fig. 14)

(2) Mount the drill bit (taper shank) to the taper shank

adapter. (Fig. 14)

(3) Turn the switch ON, and drill a hole to prescribed

depth.

(4) To remove the drill bit (taper shank), insert the cotter into

the slot of the taper shank adapter and strike the head of

the cotter with a hammer supporting on the rest. (Fig. 15)

8. Switching between the “SAVE” and the “POWER”

modes

The hammering force of the hammer can be increased or

decreased to conform

with intended usage, by operating

the shift knob as per Fig. 16.

Adjust the force to match the usage intended.

(1) “SAVE” mode ... decreased hammering force

This can prevent thin drill bits which are less than 5 mm in

diameter, from being bent or broken.

(2) “POWER” mode ... increased

hammering force

○ This can be used to speedily and eﬃ ciently drill holes

when the drill bits which are being used are greater than

5 mm in diameter.

○ This can be used to drill holes into wood or metal.

CAUTION

Do not drill holes in wood with the “SAVE” mode.

There

is a likelihood that the motor will burn out because it can

easily lock up due to the low power.

LUBRICATION

Low viscosity grease is applied to this rotary hammer so

that it can be used for a long period without replacing the

grease. Please contact the nearest service center for grease

replacement when any grease is leaking form loosened

screw.

Further use of the rotary hammer despite the grease shortage

causes damage

to reduce the service life.

CAUTION

A speciﬁ c grease (FG-6A) is used with this machine,

therefore, the normal performance of the machine may be

badly aﬀ ected by use of diﬀ erent grease. Please be sure to

let one of our service centers to undertake replacement of

the grease.

MAINTENANCE AND INSPECTION

1. Inspecting the tool

Since use of as dull tool will degrade eﬃ ciency and cause

possible motor malfunction, sharpen or replace the tool

as soon as abrasion is noted.

2. Inspecting the mounting screws

Regularly inspect all mounting screws and ensure that

they are properly tightened. Should any of the screws be

loose, retighten them immediately. Failure

to do so could

result in serious hazard.

3. Maintenance of the motor

The motor unit winding is the very “heart” of the power

tool. Exercise due care to ensure the winding does not

become damaged and/or wet with oil or water.

4. Cleaning on the outside

When the power tool is stained, wipe with a soft dry cloth

or

a cloth moistened with soapy water. Do not use chloric

solvents, gasoline or paint thinner, as they melt plastics.

5. Storage

Store the power tool in a place in which the temperature

is less than 40°C and out of reach of children.

NOTE:

Make sure that the battery is fully charged when stored

for

a long period (3 months or more). The battery with

smaller capacity may not be able to be charged when

used, if stored for a long period.

6. Service parts list

CAUTION

Repair, modiﬁ cation and inspection of Hitachi Power

Tools must be carried out by a Hitachi Authorized Service

Center.

This Parts List

will be helpful if presented with the tool to

the Hitachi Authorized Service Center when requesting

repair or other maintenance.

In the operation and maintenance of power tools, the

safety regulations and standards prescribed in each

country must be observed.

MODIFICATIONS

Hitachi Power Tools are constantly being improved

and modiﬁ ed to

incorporate the latest technological

advancements.

Accordingly, some parts may be changed without prior

notice.

Important notice on the batteries for the Hitachi

cordless power tools

Please always use one of our designated genuine

batteries. We cannot guarantee the safety and

performance of our cordless power tool when used with

batteries other than these designated by us, or when

the battery is disassembled and modiﬁ ed (such as

disassembly and replacement of cells or other internal

parts

).

NOTE

Due to HITACHI’s continuing program of research and

development, the speciﬁ cations herein are subject to

change without prior notice.

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