HiKOKI DH24PMH Rotary Hammers Instructions

DH24PMH
DH26PMC

DH26PMC
Handling instructions

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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.
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 the work area clean and well-lit. Cluttered or dark areas invite accidents.
   b) Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust. Power tools create sparks that may ignite dust or 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. Unmodified plugs and matching outlets will reduce the 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. The 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. The 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 masks, non-skid safety shoes, hard hats, 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 a power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or energizing 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, jewelry 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. The use of dust collection 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 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 and/ or the battery pack from the power tool 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, 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.

5. Service
   a) Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained.

PRECAUTION
Keep children and infirm persons away. When not in use, tools should be stored out of reach of children and infirm persons.

ROTARY 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.
3. Hold power tool by insulated gripping surfaces, when performing an operation where the cutting 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.

ADDITIONAL SAFETY WARNINGS

1.  Ensure that the power source to be utilized conforms to the power requirements specified on the product nameplate.

2. 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. 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. Do not touch the bit during or immediately after the operation. The bit becomes very hot during operation and could cause serious burns.

5. 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.

6. Always hold the body handle and side handle of the power tool firmly. Otherwise, the counterforce produced may result in inaccurate and even dangerous operations.

7. Wear a dust mask Do not inhale the harmful dust generated in drilling or chiseling operations. The dust can endanger the health of yourself and bystanders.

8. Mounting the tool
   Ο To prevent accidents, make sure to turn the switch off and disconnect the plug from the receptacle.
   Ο When using tools such as bull points, drill bits, etc., make sure to use the genuine parts designated by our company.
   Ο Clean the shank portion of the tool.
   Ο Check the latching by pulling on the tool.

9. To prevent accidents, make sure to turn the switch off and disconnect the plug from the receptacle when the drill bits and other various parts are installed or removed. The power switch should also be turned off during a work break and after work.

10. Rotation + hammering Using drill bit holder (standard accessories) When the drill bit touches the construction iron bar, the bit will stop immediately and the rotary hammer will react to revolve. Therefore firmly tighten the side handle.

11. Rotation only To drill wood or metal material using drill chuck holder (standard accessories)
    Ο Application of force more than necessary will not only expedite the work but will deteriorate the tip edge of the drill bit and reduce the service life of the rotary hammer addition.
    Ο Drill bits may snap off while withdrawing the rotary hammer from the drilled hole. For withdrawing, it is important to use a pushing motion.
    Ο Do not attempt to drill anchor holes or holes in concrete with the machine set in the rotation only function.
    Ο Do not attempt to use the rotary hammer in the rotation and hammering function with the drill chuck holder attached. This would seriously shorten the service life of every component of the machine.

12. Hammering only Using drill bit holder (standard accessories)

SYMBOLS

WARNING The following show symbols used for the machine. Be sure that you understand their meaning before use.

| DH24PMH / DH26PMC: Rotary Hammer
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| To reduce the risk of injury, the user must read the instruction manual.
V| Rated voltage Ensure that the power source to be utilized conforms to the power requirements specified on the product nameplate.
P| Power Input
n°| No-load speed
Bpm| Full-load impact rate
maxΦ| Drilling diameter, max.
| Weight
| Concrete
| Steel
| Wood
| Rotation and hammering function
| Rotation only function
| Hammering only function
| Switching ON
| Switching OFF
| Disconnect mains plug from the electrical outlet
| Class II tool

STANDARD ACCESSORIES

In addition to the main unit (1 unit), the package contains the accessories listed in below.
O Plastic case ………………………………………1
O Side handle ……………………………………….1
O Depth gauge …………………………………………1
O Drill chuck holder……………………………………… 1
Standard accessories are subject to change without notice.

APPLICATIONS

Rotation and hammering function
O Drilling anchor holes
O Drilling holes in concrete
O Drilling holes in tile Rotation only function
O Drilling in steel or wood
O Tightening machine screws, wood screws Hammering only function
O Light-duty chiseling of concrete, groove digging, and edging.

SPECIFICATIONS

The specifications of this machine are listed in the Table on page 28.
NOTE Due to HiKOKI’s continuing program of research and development, the specifications herein are subject to change without prior notice.

MOUNTING AND OPERATION

1. If it is hard to pull out the drill chuck holder or the drill bit holder, align the change lever with the ‘ mark and turn the lock grip.
2. For detailed information regarding each tool, contact a HiKOKI authorized service center.

LUBRICATION

This Rotary Hammer is of full air-tight construction to protect against dust and to prevent lubricant leakage. Therefore, this Rotary Hammer can be used without lubrication for long periods. Replace the grease whenever you change the carbon brush to maintain the service life. Further use of the rotary hammer with lock-off grease will cause the machine to seize up reduce the service life.
CAUTION
A special grease is used with this machine, therefore, the normal performance of the machine may be badly affected by the use of another grease. Please be sure to let one of our service agents undertake the replacement of the grease.

MAINTENANCE AND INSPECTION

1. Inspecting the tools
   Since the use of a dull tool will cause motor malfunctioning and degraded efficiency, replace the tool with new ones or resharpen them without delay when 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 hazards.

3. Maintenance of 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
   For your continued safety and electrical shock protection, carbon brush inspection and replacement on this machine should ONLY be performed by a HiKOKI Authorized Service Center.

5. Replacing supply cord
   If the replacement of the supply cord is necessary, this has to be done by the manufacturer of this agent in order to avoid a safety hazard.

CAUTION In the operation and maintenance of power tools, the safety regulations, and standards prescribed in each country must be observed.
NOTE Due to HiKOKI’s continuing program of research and development, the specifications herein are subject to change without prior notice.

| DH24PMH
| DH26PMC

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V| trio V, 220 V, 230 V, 240 V) ∼
P| 730 W| 830 W
no| 0-1050 /min| 0-1100 /min
Bpm| 0-3950/min| 0-4300/min
Φmax | 3.4-24 mm| 3.4-26 mm
Φmax | 13 mm
Φmax | 32 mm
| 3.0 kg

Koki Holdings Co., Ltd.
Shinagawa Intercity Tower A, 15-1, Konan 2-chome, Minato-ku, Tokyo, Japan
107 Code No. C99743231 F Printed in China

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