H 41SD - Hammer HiKOKI - Free user manual and instructions
Find the device manual for free H 41SD HiKOKI in PDF.
| Product Type | Demolition Hammer |
| Brand | HiKOKI |
| Model | H 41SD |
| Power Input | 1,100 W |
| Impact Energy | 8.5 J |
| Impact Rate (No Load) | 1,300 - 2,600 min⁻¹ |
| Bit Shank | SDS-max |
| Weight (without side handle) | 6.6 kg |
| Dimensions (L x W x H) | 456 x 83 x 213 mm |
| Power Source | AC Corded |
| Voltage | 220-240 V |
| Frequency | 50-60 Hz |
| Vibration Level (Chiselling) | 13.5 m/s² |
| Noise Level | 90 dB(A) |
| Variable Speed | Yes |
| Soft Start | Yes |
| Anti-Vibration System | Yes |
| Safety Clutch | Yes |
| Overload Protection | Yes |
| Double Insulation | Yes |
| Supplied Accessories | Side handle, depth gauge, carrying case |
| Warranty | 1 year (may vary by region) |
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USER MANUAL H 41SD HiKOKI
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Line drawing of a disassembled tool with a pointed tip, enclosed in a circle (no text or symbols)
Read through carefully and understand these instructions before use.
使用前務請詳加閱讀。

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Illustration of a hand using a screwdriver to press or push a bolt, with no visible text or symbols

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.
The term “power tool” in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.
1) Work area safety
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 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.
f) If operating a power tool in a damp location is unavoidable, use a residual current device (RCD) protected supply.
Use of an RCD 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 influence of drugs, alcohol or medication.
A moment of inattention while operating power tools may result in serious personal injury.
b) Use personal protective equipment. Always wear eye protection.
Protective equipment such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.
c) Prevent unintentional starting. Ensure the switch is in the off position before connecting to power source and/or battery pack, picking up or carrying the tool.
Carrying power tools with your finger on the switch or energising 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 jewelry. 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 affect 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 different from intended could result in a hazardous situation.
5) Service
a) Have your power qualified 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.
DEMOLITION HAMMER SAFETY WARNINGS
1. Wear ear protectors
Exposure to noise can cause hearing loss.
2. Use auxiliary handle(s), if supplied with the tool.
Loss of control can cause personal injury.
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Hold power tool by insulated gripping surfaces, when performing an operation where the cutting a accessory may contact hidden wiring or its own cord. Cutting accessory contacting a "live" wire may make exposed metal parts of the power tool "live" and could give the operator an electric shock.
-
Do not touch the bit during or immediately after operation. The bit becomes very hot during operation and could cause serious burns.
- Before starting to break, chip or drill into a wall, floor or ceiling, thoroughly confirm that such items as electric cables or conduits are not buried inside.
- Even when the switch is on, the motor is running and the tool head is pressed to the demolition surface, the hammer sometimes does not start operating. In these instances, turn the switch off, press the tool head against the demolition surface again, and turn the switch on and off. This should start the demolition hammer operating. Repeat this procedure for several minutes, and the demolition hammer will heat, after which it will operate when switched to ON-LOCK.
SPECIFICATIONS
| Voltage (by areas)* (110 V, 115 V, 120 V) | 127 V, 220 V, 230 V, 240 V) | ~ |
| Power Input* 1050 W | ||
| Full-load Impact Rate 3000 /min | ||
| Weight (without cord, side handle) | 5.0 kg | |
* Be sure to check the nameplate on product as it is subject to change by areas.
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.
○ Crushing

(1) Bull Point
Overall Length: 280, 450 mm
○ Syringe (for chip removal)

O Hammer Grease A
500 g (in a can)
30 g (in a tube)
Optional accessories are subject to change without notice.
APPLICATIONS
Breaking concrete, chipping off concrete, grooving, bar cutting, and driving piles.
Application examples:
Installation 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. Power switch
Ensure that the power switch is in the OFF position. If the plug is connected to a receptacle while the power switch is in the ON position, the power tool will start operating immediately, which could cause a serious accident.
3. 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.
4. 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 HiKOKI.
(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 of Ⓐ as shown in Fig. 1.
(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 Ⓐ in a manner 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.
HOW TO USE THE DEMOLITION HAMMER (Fig. 2)
- After placing the tip of the tool on concrete surface, switch ON.
- 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.
GREASE REPLACEMENT
This machine is of full air-tight con against dust and to prevent lubricant leakage. This machine can be used without grease supplement for an extended period of time. However, perform the grease replacement to maintain the service life. Replace the grease as described below.
1. Grease replacement period
Inspect the grease amount according to the timing replacement period of the carbon brush. (See the section MAINTENANCE AND INSPECTION.) Ask for grease replacement at the nearest authorized HiKOKI Service Center. In the case that you are forced to change the grease by yourself, please follow the following points.
2. How to replace grease
CAUTION
Before replacing the grease, turn the power off and pull out the plug from the receptacle.
(1) Remove the crank cover and wipe off the old grease inside. (Fig. 3)
(2) Supply 35 g (the standard volume to cover the connecting rod) of HiKOKI Electric Hammer Grease A to the crank case.
(3) After replacing the grease, install the crank cover securely.
NOTE
The HiKOKI Electric Hammer Grease A is of the low viscosity type. When the grease is consumed, purchase from an authorized HiKOKI Service Center.
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 sc 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. Since an excessively worn carbon brush can result in motor trouble, replace the carbon brushes with new ones having the same carbon brush No. shown in the figure when it becomes worn to or near the “wear limit”. In addition, always keep carbon brushes clean and ensure that they slide freely within the brush holders.
5. Replacing carbon brushes
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 securely and to install the tail cover.
6. Service parts list
CAUTION
Repair, modification and inspection of HiKOKI Power Tools must be carried out by a HiKOKI Authorized Service Center.
This Parts List will be helpful if present tool to the HiKOKI Authorized Service Co 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
HiKOKI Power Tools are constantly being improved and modified to incorporate the latest technological advancements.
Accordingly, some parts may be changed without prior notice.
NOTE
Due to HiKOKI's continuing program of research and development, the specifications herein are subject to change without prior notice.
一般安全規則
警告
閱讀所有安全警告說明
CẢ NH BÁ O AN TOÀ N VỀ MÁ Y ĐỤ C PHA
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| ITEM NO. | PART NAME Q'TY | |
| 1 RETainer DAMPER 1 | ||
| 2 HAMMER HOLDER 1 | ||
| 3 RETAINING RING D45 1 | ||
| 4 FRO N T W A S H | E | |
| 5 CYLINDER CASE ASS'Y (INCLUDE. 11) 1 | ||
| 6 CYLINDER CASE COVER 1 | ||
| 7 BAND 1 | ||
| 8 HEX. SOCKET HD. BOLT (W/FLANGE) M6×25 4 | ||
| 9 SEAL PACKING (A) | 1 | |
| 10 O-RING (S-48) | 1 | |
| 11 O-RING(S-36) | 1 | |
| 12 SECOND HAMMER | 1A | |
| 13 DAMPER WASHER | 1 | |
| 14 DAMPER | 1 | |
| 15 O-RING(A) | 2 | |
| 16 MOUNT | 1 | |
| 17 HANDLE BOLT | 1 | |
| 18 SIDE HANDLE | 1A | |
| 19 CYLINDER | 1 | |
| 20 STRIKER | 1 | |
| 21 O-RING | 2 | |
| 22 PISTON PIN | 1 | |
| 23 PISTON | 1 | |
| 24 CONNECTING ROD ASS'Y (INCLUDE. 25) | 1A | |
| 25 NEEDLE BEARING (NSK AJ50 1203) | 1 | |
| 26 RETAINING RING FOR D12 SHAFT | 1 | |
| 27 FEATHER KEY 4×4×8 | 1 | |
| 28 HEX. SOCKET HD. BOLT (W/FLANGE) M5×16 6 | ||
| 29 CRANK COVER | 1A | |
| 30 O-RING (JASO2060) 1 | ||
| 31 CRANK SHAFT | 1A | |
| 32 RETAINING RING FOR D40 HOLE | 1 | |
| 33 BALL BEARING 6203DDCMPS2L | 1 | |
| 34 O-RING (S-40) | 1 | |
| 35 OIL SEAL | 1 | |
| 36 DISTANCE RING | 1 | |
| 37 VALVE | 1 | |
| 38 VALVE COVER | 1 | |
| 39 FELT | 1 | |
| 40 SEAL LOCK HEX. SOCKET HD. BOLT M4×8 | 1 | |
| 41 HEX. SOCKET HD. BOLT (W/FLANGE) M5×12 | 1 | |
| 42 HOOD | 1 | |
| 43 SEAL LOCK HEX. SOCKET HD. BOLT M6×35 | 4 | |
| 44 CRANK CASE | 1A | |
| 45 FIRST GEAR | 1 | |
| 46 NEEDLE BEARING (M661) | 1 | |
| 47 SEAL PACKING (B) | 1 | |
| 48 GEAR COVER ASS'Y (INCLUDE. 46) | 1A | |
| 49 SEAL LOCK HEX. SOCKET HD. BOLT M6×20 | 1 | |
| 50 BALL BEARING 6201DDCMPS2L | 1 | |
| ITEM NO. | PART NAME Q'TY | |
| 51 | DUST WASHER (B) | 1 |
| 52 | ARMATURE | 1E |
| 53 | FAN GUIDE | 1 |
| 54 | HEX. HD. TAPPING SCREW D5×50 | 2 |
| 55 | LEAD WIRE | 1J |
| 56 | STATOR ASS'Y (INCLUDE. 57) | 1F |
| 57 | BRUSH TERMINAL | 2A |
| 58 | HOUSING ASS'Y (INCLUDE. 61, 62) | 1A |
| 59 | BRUSH CAP | 2 |
| 60 | CARBON BRUSH | 2 |
| 61 | BRUSH HOLDER | 2A |
| 62 | HEX. SOCKET SET SCREW M5×8 | 2 |
| 63 | WASHER(A) | 1 |
| 64 | BALL BEARING 608VVC2PS2L | 1 |
| 65 | BEARING HOLDER 1 | |
| 66 | DUST SEAL | 1 |
| 67 | TAIL COVER | 1 |
| 68 | PLATE | 1 |
| 69 | TAPPING SCREW (W/FLANGE) D5×20 | 4 |
| 70 | NAME PLATE | 1 |
| 71 | CONNECTOR 50091 | 1 |
| 72 | CONNECTOR 50092 | 1 |
| 73 | NOISE SUPPRESSOR | 1C |
| 74 | CORD ARMOR | 1 |
| 75 | INTERNAL WIRE | 1B |
| 76 | HANDLE | 1 |
| 77 | SWITCH (B) | 1A |
| 78 | SUPPORT (B) | 1 |
| 79 | HANDLE COVER | 1 |
| 80 | TAPPING SCREW (W/FLANGE) D4×25 | 2 |
| 81 | WASHER M4 | 1 |
| 82 | TERMINAL | 1 |
| 83 | PILLAR TERMINAL | 1 |
| 84 | CORD CLIP | 1 |
| 85 | TAPPING SCREW (W/FLANGE) D4×16 | 2 |
| 86 | CORD | 1 |
| 501 | BULL POINT | 1A |
| 502 | CASE | 1X |
Koki Holdings Co., Ltd.
Shinagawa Intercity Tower A, 15-1, Konan 2-chome, Minato-ku, Tokyo, Japan