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Demolition Hammer
日立牌電動鎚
H 41
Handling Instructions
使用說明書
Read through carefully and understand these instructions before use.
使用前務請詳加閱讀。
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1
2
3
4
4
5
6
amm
17mm
6 a
7 43 6
8 73 7
1
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1
Tool shank
2
Slide grip
3
Front cover
4
Crank cover
5
Wear limit
6
No. of carbon brush
7
Usual carbon brush
8
Auto-stop carbon brush
工具柄
滑動把手
前罩
曲柄蓋
磨損極限
碳刷號
通常碳刷
自動停止碳刷
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GENERAL OPERATIONAL PRECAUTIONS
WARNING! When using electric tools, basic safety
precautions should always be followed to reduce the
risk of fire, electric shock and personal injury, including
the following.
Read all these instructions before operating this product
and save these instructions.
For safe operations:
1. Keep work area clean. Cluttered areas and benches
invite injuries.
2. Consider work area environment. Do not expose
power tools to rain. Do not use power tools in
damp or wet locations. Keep work area well lit.
Do not use power tools where there is risk to
cause fire or explosion.
3. Guard against electric shock. Avoid body contact
with earthed or grounded surfaces. (e.g. pipes,
radiators, ranges, refrigerators).
4. Keep children and infirm persons away. Do not
let visitors touch the tool or extension cord. All
visitors should be kept away from work area.
5. Store idle tools. When not in use, tools should
be stored in a dry, high or locked up place, out
of reach of children and infirm persons.
6. Do not force the tool. It will do the job better and
safer at the rate for which it was intended.
7. Use the right tool. Do not force small tools or
attachments to do the job of a heavy duty tool.
Do not use tools for purposes not intended; for
example, do not use circular saw to cut tree limbs
or logs.
8. Dress properly. Do not wear loose clothing or
jewelry, they can be caught in moving parts.
Rubber gloves and non-skid footwear are
recommended when working outdoors. Wear
protecting hair covering to contain long hair.
9. Use eye protection. Also use face or dust mask
if the cutting operation is dusty.
10. Connect dust extraction equipment.
If devices are provided for the connection of dust
extraction and collection facilities ensure these are
connected and properly used.
11. Do not abuse the cord. Never carry the tool by
the cord or yank it to disconnect it from the
receptacle. Keep the cord away from heat, oil and
sharp edges.
12. Secure work. Use clamps or a vise to hold the
work. It is safer than using your hand and it frees
both hands to operate tool.
13. Do not overreach. Keep proper footing and balance
at all times.
14. Maintain tools with care. Keep cutting tools sharp
and clean for better and safer performance. Follow
instructions for lubrication and changing
SPECIFICATIONS
accessories. Inspect tool cords periodically and if
damaged, have it repaired by authorized service
center. Inspect extension cords periodically and
replace, if damaged. Keep handles dry, clean, and
free from oil and grease.
15. Disconnect tools. When not in use, before servicing,
and when changing accessories such as blades,
bits and cutters.
16. Remove adjusting keys and wrenches. Form the
habit of checking to see that keys and adjusting
wrenches are removed from the tool before turning
it on.
17. Avoid unintentional starting. Do not carry a
plugged-in tool with a finger on the switch. Ensure
switch is off when plugging in.
18. Use outdoor extension leads. When tool is used
outdoors, use only extension cords intended for
outdoor use.
19. Stay alert. Watch what you are doing. Use common
sense. Do not operate tool when you are tired.
20. Check damaged parts. Before further use of the
tool, a guard or other part that is damaged should
be carefully checked to determine that it will
operate properly and perform its intended function.
Check for alignment of moving parts, free running
of moving parts, breakage of parts, mounting and
any other conditions that may affect its operation.
A guard or other part that is damaged should be
properly repaired or replaced by an authorized
service center unless otherwise indicated in this
handling instructions. Have defective switches
replaced by an authorized service center. Do not
use the tool if the switch does not turn it on and
off.
21. Warning
The use of any accessory or attachment, other
than those recommended in this handling
instructions, may present a risk of personal injury.
22. Have your tool repaired by a qualified person.
This electric tool is in accordance with the relevant
safety requirements. Repairs should only be carried
out by qualified persons using original spare parts.
Otherwise this may result in considerable danger
to the user.
PRECAUTIONS ON USING DEMOLITION
HAMMER
1. Wear earplugs to protect your ears during
operation.
2. Do not touch the tool during or immediately after
operation. The tool becomes very hot during
operation and could cause serious burns.
3. Before starting to break, chip or drill onto a wall,
floor or ceiling, thoroughly confirm that such items
as electric cables or conduits are not buried inside.
Voltage (by areas)* (110V, 115V, 120V, 127V, 220V, 230V, 240V)
Input 1050W*
Full-Load Impact Rate 3000/min.
Weight 5.6kg (without cord, side handle)
* Be sure to check the nameplate on product as it is subject to change by areas.
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STANDARD ACCESSORIES
1. Case ............................................................................. 1
2. Bull Point .................................................................... 1
3. Side Handle ................................................................ 1
Standard accessories are subject to change without
notice.
OPTIONAL ACCESSORIES (sold separately)
NOTE:
The round type bit with a collar cannot be attached.
䢇 Crushing
(1) Bull point
Total length: 280, 450 mm
䢇 Syringe (for chip removal)
5. Installing tools
CAUTION:
Be sure to switch power OFF and disconnect the
plug from the receptacle to avoid serious trouble.
NOTE:
Concerning the tools such as bull points and cutters,
be sure to use separately sold genuine parts that
are designated by HITACHI.
(1) Wipe off and clean up the shank section of the tool,
and apply grease or machine oil onto it.
(2) Insert the shank section of the tool completely into
the hexagonal hole of the front cover at a state
where the slide grip is fully pulled in the direction
as shown in Fig. 1.
of
(3) Return the slide grip to its home position and make
sure that the tool is pulled and locked securely.
(4) Removal is carried out at a state where the slide
grip is fully pulled in the direction of
similar to the case of installing the tool.
CAUTION:
Be sure to grip the handle and side handle during
work. Do not hold by the slide grip during work:
If you pull it by mistake, the bull point could jump
out.
in a manner
䢇 HITACHI Electric Hammer Grease A
500g (in a can)
30g (in a tube)
APPLICATIONS
Breaking concrete, chipping off concrete, grooving, bar
cutting, and driving piles.
Application examples:
lnstallation of piping and wiring, sanitary facility
installation, machinery installation, water supply and
drainage work, interior jobs, harbor facilities and other
civil engineering work.
PRIOR TO OPERATION
1. Power source
Ensure that the power source to be utilized conforms
to the power requirements specified on the product
nameplate.
2. Grounding
This tool should be grounded while in use to protect
the operator from electric shock. The tool is equipped
with a three-conductor cord and grounding type
plug to fit the proper grounding type receptacle.
The green (or green and yellow) conductor in the
cord is the grounding wire. Never connect the green
(or green and yellow) wire to a live terminal.
3. Power switch
Ensure that the power switch is in the OFF position.
If the plug is connected to a power receptacle while
the power switch is in the ON position, the power
tool will start operating immediately, which could
cause a serious accident.
4. Extension cord
When the work area is removed from the power
source, use an extension cord of sufficient thickness
and rated capacity. The extension cord should be
kept as short as practicable.
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HOW TO USE THE DEMOLITION HAMMER (Fig. 2)
1. After placing the tip of the tool in the base hole,
switch ON.
2. By utilizing the weight of the machine and by firmly
holding the demolition hammer with both hands,
one can effectively control the subsequent recoil
motion.
Proceed at a moderate work-rate, the use of too much
force will impair efficiency.
HOW TO REPLACE GREASE
This machine is of full air-tight construction to protect
against dust and to prevent lubricant leakage. Therefore,
the machine can be used without lubrication for long
periods. Replace the grease as described below.
1. Grease Replacement Period
After purchase, replace grease after every 6 months
of usage. Ask for grease replacement at the nearest
authorized Hitachi Service Agent. Proceed for
replacement of grease.
2. Grease Replacement
CAUTION:
Before replacing the grease, turn the power off and
pull out the power plug.
(1) Remove the crank cover and wipe off the grease
inside. (Fig. 3)
(2) Supply 10g of Hitachi Electric Hammer Grease A
to the crank case.
(3) After replacing the grease, install the crank case
securely.
NOTE
The Hitachi Electric Hammer Grease A is of the low
viscosity type. When the grease is consumed, purchase
from an authorized Hitachi Service Agent.
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MAINTENANCE AND INSPECTION
CAUTION:
Be sure to switch power OFF and disconnect the
plug from the receptacle to avoid serious trouble.
1. Inspecting the tool
Since use of a dull tool will degrade efficiency 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. Inspecting the carbon brushes (Fig. 4)
The Motor employs carbon brushes which are
consumable parts. When they become worn to or
near the “wear limit”, it could result in motor trouble.
When an auto-stop carbon brush is equipped, the
motor will stop automatically. At that time, replace
both carbon brushes with new ones which have the
same carbon brush Numbers shown in the figure.
In addition, always keep carbon brushes clean and
ensure that they slide freely within the brush holders.
5. Replacement procedure
Loosen the set screw and remove the tail cover.
Remove the brush caps and carbon brushes. After
replacing the carbon brushes, do not forget to tighten
the brush caps properly and to install the tail cover.
NOTE
Due HITACHI’s continuing program of research and
development, the specifications herein are subject to
change without prior notice.
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作業上的一般註意事項
警告﹗當使用電動工具時，為了減少造成火災、電擊
和人身傷害，必須時刻遵守基本註意事項，以及下述
操作註意事項。
在操作本機之前，請通讀本說明書，並予以妥善保
管。
安全操作註意事項︰
1. 工作場所應打掃乾淨，清理妥當，雜亂無章將導
致事故。
2. 確保妥適的作業環境。電動工具不可任其風吹雨
打。不得在潮濕的地方作業。工作場所需保持充
分的亮度。請勿在有可能造成火災或爆炸的地方
使用電動工具。
3. 謹防觸電事故。應避免身體同大地或接地表面接
觸（例如︰管道、散熱器、爐灶、冰箱等）。
4. 不可讓孩童和體弱人士靠近工作場所。與作業無
關的訪客也必須保持安全距離。
5. 不使用的電動工具應存放到乾燥而孩童和體弱人
士伸手不及的高處，並加鎖保管。
6. 不得使勁用力推壓。電動工具需按設計條件才能
有效而安全地工作，絕不可勉強。
7. 妥選使用工具。不可用小型工具或附件去幹重
活。不可用於規定外的作業。舉例說，用圓鋸進
行伐木打枝或原木鋸切作業。
8. 工作時衣服穿戴要合適。不要讓鬆散的衣角和寶
石類卷入轉動部份。屋外作業時，最好手戴橡膠
手套，腳穿防滑膠鞋。同時要戴上能夠罩籠長髮
的工作帽。
9. 絕大多數的電動工具作業時，均需戴安全眼鏡。
進行粉塵飛揚的切削作業時，需戴防塵面罩。
10. 連接除塵設備
如果提供連接除塵和集塵的設備，請確認是否已
經連接好並且使用正常。
11. 不要拿電線提起電動工具，也不得拉扯電線從電
源插座拆除插頭。電線需與熱源和油液隔開，並
避免與銳利的邊緣接觸。
12. 作業以安全第一為原則。工件要用夾具或臺鉗卡
緊。這樣做，比用手按壓更為可靠，也能夠讓雙
手專心操作。
13. 作業時腳步要站穩，身體姿勢要保持平衡。
14. 工具應維護妥善，經常保持鋒利、清潔才能充分
發揮性能，落實作業安全的要求。應按規定加註
潤滑脂、更換附件。線纜應定期檢查，如發現損
傷應即委託專業性的服務單位加以修復。延伸電
纜如有損傷應予更換。手柄要保持乾燥，並防止
沾附油脂類。
15. 不使用時、維修前以及更換附件（如刀具、鑽
頭、鋸具等）之前，都必須拆卸電源插頭才行。
16. 開動前務必把調整用鍵和扳手類拆除下來。這一
點與安全有關。應養成習慣，嚴格遵守。
17. 謹防誤開動。插頭一插上電源插座，指頭就不可
隨便接觸電源開關。插接電源之前，應先確認：
開關是否已切斷。
18. 屋外延伸線纜的使用。屋外作業時，必須使用專
用的延伸線纜。
19. 保持高度警覺，充分掌握情況，以正常的判斷力
從事作業。疲憊時切不可開動電動工具。
20. 檢查損壞部件。在繼續使用電動工具之前，應詳
細檢查各部零件以及防護裝置有無損壞，以便決
定能否正常工作，能否發揮正常效能。檢查轉動
部份的對準、空轉、各零件有無異常，安裝是否
妥善以及其它足以給工作帶來不良影響的情況。
如防護以及其它零件損傷了。除非本說明書中已
有記載否則應即委託服務中心進行修理或更換。
開關一發現缺陷，應即委託服務中心加以更換。
如開關不能正常地接通或切斷，絕不可使用該電
動工具。
21. 警告
為了防止人身傷害，不得使用電動工具去進行規
定外的作業。並祇能使用本說明書目錄中所指定
的附件。
22. 本工具必須委託有資格的維修人員進行維修。
本電動工具滿足相關的安全要求。維修必須由專
業人員使用純正配件來進行。否則有可能會給用
戶造成人身損害。
使用電動鎚時的註意事項
1. 作業時戴上耳塞保護您的耳朵。
2. 不要在作業時或作業之後馬上就觸摸鑽頭。
在作業時鑽頭變得非常熱，可能引起嚴重的燒
傷。
3. 鑽鑿牆壁、天花板、地板時，應先確認有無埋設
電纜、管道等。
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規 格
電 壓(按地區)* (110V, 115V, 120V, 127V, 220V, 230V, 240V)
輸入功率 1050W*
滿載衝擊率 3000 次/分
重 量 5.6kg (不帶電源線、側柄)
* 務必確認產品上的銘牌，因輸入功率因地區而異。
標準附件
1. 箱子 .................................... 1
2. 尖鑽頭 .................................. 1
3. 側柄 .................................... 1
標準附件可能不預先通告而徑予更改。
選購附件（分開銷售）
註﹕
無法安裝帶凸緣的圓形鑽子。
䢇 擠壓頭
(1) 尖鑽頭
總長：280, 450 mm
䢇 噴射器（用於鑿眼清屑）
䢇 日立牌電動鎚潤滑油Ａ
500g（在油罐內）
30g（在管內）
用途
混凝土破碎、混凝土切削、開槽、棒切割與打樁。
應用例：
裝配管道、敷設線纜、衛生設備安裝、機械安裝、給
排水設施建設、室內裝修、港口設施建設、其它土木
工程施工。
作業之前
1. 電源
確認所使用的電源與工具銘牌上標示的規格是否
相符。
2. 接地
這個工具在使用時一定要接地以防操作者受到電
擊。工具配備有三導線和接地式插銷以適應正常
接地插座。在電纜中的綠色(或綠色和黃色)導線
是接地線。千萬不要把綠色(綠色和黃色)線接到
火線上。
3. 電源開關
確認電源開關是否切斷。若電源開關接通，則插
頭插入電源插座時電動工具將出其不意地立刻轉
動，從而招致嚴重事故。
4. 延伸電纜
若作業場所移到離開電源的地點，應使用容量足
夠、鎧裝合適的延伸線纜，並且要盡可能地短
些。
5. 安裝工具
注意﹕
確認開關已斷開並且從電源插座中拔去電源插頭以
避免嚴重事故。
註﹕
使用強力轉轍器及截斷器等工具時，請使用敝公司
指定的另售零件。
(1) 擦淨工具柄部，塗上潤滑油或機油。
(2) 如圖 1 所示將滑動把手向 方向完全拉出，將
工具柄部牢固插入前蓋的六角形孔中。
(3) 將滑動把手復歸原處，拉動工具確認其已確實固
定住。
(4) 拆卸工具時，與安裝工具時一樣，需將滑動把手
向 方向拉出。
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注意﹕
工作中務必握住工具柄部和邊柄。
工作中請勿握住滑動把手，否則，當您誤將其拉動
時，會發生尖鑽頭彈出事故。
怎樣使用電動鎚(圖 2)
1. 把鑽頭的尖端放入底座孔內之後，打開開關。
2. 利用機器重量，用雙手緊握住電動鎚，就可以有
效地控制反衝運動。
要以適當的速度開始工作。用力過猛將會降低效
率。
怎樣更換潤滑油
該工具具有全氣密結構以防塵和潤滑油漏失。因此該
機可以長期不注油運轉。更換潤滑油方法如下：
1. 潤滑油更換周期
在購入後每用了六個月應更換潤滑油。請找離你
最近的指定的日立代理店更換潤滑油。
2. 更換潤滑油
注意：
更換潤滑油前應先關上電源並拔下電源插銷。
2. 檢查安裝螺釘
要經常檢查安裝螺釘是否緊固妥善。若發現螺釘
鬆了，應立即重新扭緊，否則會導致嚴重的事
故。
3. 電動機的維護
電動機繞線是電動工具的“心臟部”。應仔細檢
查有無損傷，是否被油液或水沾濕。
4. 檢查碳刷（圖 ４）
電動機裡的碳刷是一種消耗品。碳刷一旦使用到
磨損極限，電動機就會出現各種障礙；如果所使
用的碳刷是“自停式”，電動機將自動地停止轉
動。遇到上述情況，應立即換上與圖上代號一致
的新碳刷。
此外，碳刷應經常保持乾淨狀態，以保證能在刷
握裡自由滑動。
5. 更換步驟
鬆開固定螺絲拆下尾罩，拆下碳刷罩和碳刷。更
換碳刷後不要忘記擰緊碳刷罩和安裝尾罩。
註：
為求改進，本手冊所載規格可能不預先通告而徑予
更改。
(1) 卸下曲柄蓋揩掉內部的潤滑油。(圖 3)
(2) 向曲柄室注入 10 克日立牌電動鎚潤滑油 A。
(3) 更換油後擰緊曲柄蓋。
注意：
日立牌電動鎚潤滑油 A 為低黏度型。當潤滑油損
耗時請從指定的日立代理店購買。
維護和檢查
注意﹕
確認開關已斷開並且從電源插座中拔去電源插頭以
避免嚴重事故。
1. 工具檢修
當使用變鈍的工具時會降低效率並可能使電動機
出現故障，因此剛一發現就應立即磨快或更換該
工具。
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Hitachi Koki Co., Ltd.
705
Code No. C99127432 N
Printed in Japan
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