H 90SE - Hammer HITACHI - Free user manual and instructions

USER MANUAL H 90SE HITACHI

SAFETY INSTRUCTIONS AND INSTRUCTION MANUAL

Read and understand all of the safety precautions, warnings and operating instructions in the Instruction Manual before operating or maintaining this power tool. Most accidents that result from power tool operation and maintenance are caused by the failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing a potentially hazardous situation before it occurs, and by observing appropriate safety procedures. Basic safety precautions are outlined in the “SAFETY” section of this Instruction Manual and in the sections which contain the operation and maintenance instructions. Hazards that must be avoided to prevent bodily injury or machine damage are identified by WARNINGS on the power tool and in this Instruction Manual. NEVER use this power tool in a manner that has not been specifically recommended by HITACHI.

MEANINGS OF SIGNAL WORDS

WARNING indicates a potentially hazardous situations which, if ignored, could result in death or serious injury. CAUTION indicates a potentially hazardous situations which, if not avoided, may result in minor or moderate injury, or may cause machine damage. NOTE emphasizes essential information. SAFETY

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.

a) Keep 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 which may ignite the 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 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.

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. 01Eng_H90SE_US 9/20/12, 13:263English

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 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 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 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 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 tool’s 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.

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.

Exposure to noise can cause hearing loss.

2. Use auxiliary handles, if supplied with the tool.

Loss of control can cause personal injury.

3. Hold power tools by insulated gripping surfaces

when performing an operation where the cutting tool 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.

4. NEVER touch the tool bit with bare hands after

5. NEVER wear gloves made from materials likely to

roll up such as cotton, wool, cloth or string, etc.

6. ALWAYS attach the side handle and securely grip

NEVER place your hands, fingers or other body parts near the tool’s moving parts.

8. NEVER operate without all guards in place.

NEVER operate this tool without all guards or safety features in place and in proper working order. If maintenance or servicing requires the removal of a guard or safety feature, be sure to replace the guard or safety feature before resuming operation of the tool.

Don’t force small tool or attachment to do the job of a heavy-duty tool. 01Eng_H90SE_US 9/20/12, 13:264English

than those specified. NEVER use a power tool for applications other than those specified in the Instruction Manual.

11. Handle tool correctly.

Operate the tool according to the instructions provided herein. Do not drop or throw the tool. NEVER allow the tool to be operated by children, individuals unfamiliar with its operation or unauthorized personnel.

12. Keep all screws, bolts and covers tightly in place.

Keep all screws, bolts, and plates tightly mounted. Check their condition periodically.

13. Do not use power tools if the plastic housing or

handle is cracked. Cracks in the tool’s housing or handle can lead to electric shock. Such tools should not be used until repaired.

14. Blades and accessories must be securely mounted

to the tool. Prevent potential injuries to youself or others. Blades, cutting implements and accessories which have been mounted to the tool should be secure and tight.

15. Keep motor air vent clean.

The tool’s motor air vent must be kept clean so that air can freely flow at all times. Check for dust build-up frequently.

16. Operate power tools at the rated voltage.

Operate the power tool at voltages specified on its nameplate. If using the power tool at a higher voltage than the rated voltage, it will result in abnormally fast motor revolution and may damage the unit and the motor may burn out.

17. NEVER use a tool which is defective or operating

abnormally. If the tool appears to be operating unusually, making strange noises, or otherwise appears defective, stop using it immediately and arrange for repairs by a Hitachi authorized service center.

18. NEVER leave tool running unattended. Turn power

off. Don’t leave tool until it comes to a complete stop.

19. Carefully handle power tools.

Should a power tool be dropped or struck against hard materials inadvertently, it may be deformed, cracked, or damaged.

20. Do not wipe plastic parts with solvent.

Solvents such as gasoline, thinner benzine, carbon tetrachloride, and alcohol may damage and crack plastic parts. Do not wipe them with such solvents. Wipe plastic parts with a soft cloth lightly dampened with soapy water and dry thoroughly.

21. ALWAYS wear eye protection that meets the

requirement of the latest revision of ANSI Standard Z87.1.

22. ALWAYS be careful with buried object such as an

underground wiring. Touching live wiring or electric cable with this tool may result in electric shock. Confirm before use whether hidden objects are present, such as electric cables within the wall, floor or ceiling.

OPERATION To ensure safer operation of this power tool, HITACHI has adopted a double insulation design. “Double insulation” means that two physically separated insulation systems have been used to insulate the electrically conductive materials connected to the power supply from the outer frame handled by the operator. Therefore, either the symbol “ ” or the words “Double insulation” appear on the power tool or on the nameplate. Although this system has no external grounding, you must still follow the normal electrical safety precautions given in this Instruction Manual, including not using the power tool in wet environments. To keep the double insulation system effective, follow these precautions:

Only HITACHI AUTHORIZED SERVICE CENTER should disassemble or assemble this power tool, and only genuine HITACHI replacement parts should be installed.

Clean the exterior of the power tool only with a soft cloth moistened with soapy water, and dry thoroughly. Never use solvents, gasoline or thinners on plastic components; otherwise the plastic may dissolve. 01Eng_H90SE_US 9/20/12, 13:265English

SAVE THESE INSTRUCTIONS

Fig. 1 Nameplate Front Cover Retainer Side Handle Trigger Switch Cap Cover Housing FUNCTIONAL DESCRIPTION NOTE: The information contained in this Instruction Manual is designed to assist you in the safe operation and maintenance of the power tool. Some illustrations in this Instruction Manual may show details or attachments that differ from those on your own power tool

APPLICATIONS 䡬 The demolition hammer should be applied to demolishing concrete, chiseling concrete, grooving, bar cutting, and driving piles in installation of piping and wiring, sanitary facility installation, machinery installation, water supply and drainage work, interior jobs, harbor facilities and other civil engineering work.

Ensure that the power source to be utilized conforms to the power source requirements specified on the nameplate of this demolition hammer.

Ensure that the switch is in the OFF position. If the plug is connected to a receptacle while the switch is in the ON position, this demolition hammer will start operating immediately and can cause serious injury.

When the work area is remote from the power source, use an extension cord of sufficient thickness and rated capacity. The extension cord should be kept as short as practicable.

WARNING: Damaged cord must be replaced or repaired.

4. Check the receptacle

If the receptacle loosely accepts the plug, the receptacle must be repaired. Contact the nearest authorized service center for repair service. If such a fautly receptacle is used, it may cause overheating, resulting in a serious hazard.

5. Confirming condition of the environment:

Confirm that the work site is placed under neat, clean conditions conforming to prescribed precautions.

6. Installing an accessory, such as a bull point, a cutter, etc.,

CAUTION: To prevent accidents, make sure to turn the switch off and disconnect the plug from the receptacle. NOTE: When using accessories such as bull points, cutters, etc., make sure to use the genuine parts designated by our company. 01Eng_H90SE_US 9/20/12, 13:268English

• It is possible to attach accessories such as bull points, cutters, etc., with any of the three types of shank bit shapes shown below. (Fig. 2) 䡬 Mounting air tool shank and standard hexagonal shank tools. (1) Clean, then smear the accessory shank portion with grease or machine oil. (2) Move the retainer to open position and seat the accessory, such as a bull point, a cutter, etc., in the hexagonal hole in the front cover (See Fig. 3). (3) Clamp the accessory into place by bringing the retainer to the clamp position. To make sure that the accessory is properly mounted, pull on the accessory. (Fig. 4) 䡬 Mounting standard hexagonal shanks and retaining groove shanks without collars. (1) Clean, then smear the accessory shank portion with grease or machine oil. (2) Move the retainer to position . Align the accessory shank portion so that its recessed portion is under clamp and seat the accessory such as a bull point, a cutter, etc., in the hexagonal hole in the front cover (See Fig. 5). (3) Clamp the accessory into place by bringing the retainer to clamp position . To make sure that the accessory is properly mounted, pull on the accessory. (Fig. 6) NOTE: When removing the accessory, such as a bull point, a cutter, etc., carry out the above procedures in reverse. Fig. 3 Fig. 4 Fig. 6 Fig. 5 Air Tool Shank Bit Standard Hex. Shank Bit (Combo Type) Retaining Groove Bit without Collar Fig. 2 Retainer Front Cover Tool Shank Tool Shank Front Cover Retainer Recessed Portion 01Eng_H90SE_US 9/20/12, 13:269English

1. Pull the trigger switch after applying the tip of the bit to the

2. Operate this demolition hammer by utilizing its own weight.

the performance will not be better even if it is pressed or thrust forcibly against the work surface. Hold this demolition hammer with a force just sufficient to counteract the reaction. This demolition hammer is equipped with a spring cushion on the handle so that chipping vibration is not conveyed to the operator. Operate this demolition hammer without forcing the handle too strongly. NOTE: Sometimes the power tool does not begin the striking stroke even when the motor rotates because oil has become thick. If the power tool is used at low temperatures or if it is used after a long idle time, this demolition hammer should be kept running in for about five minutes in order to warm it up. CAUTION: After long time of use, the front cover becomes hot. Therefore, be careful not to burn your hands. Fig. 7 01Eng_H90SE_US 9/20/12, 13:2610English

WARNING: Be sure to switch power OFF and disconnect the plug from the

receptacle during maintenance and inspection.

1. Inspecting this demolition hammer

Since use of a dull accessory, such as a bull point, a cutter, etc., will degrade efficiency and cause possible motor malfunction, sharpen or replace with a new one 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 loosened, retighten them immediately.

WARNING: Using this demolition hammer with loosen screws is extremely

3. Inspecting the retainer (Fig. 2 and 3)

The retainer may become loose due to excessive use. Always, pay attention to its proper functioning to securely hold the accessory shank portion. If any wear and tear is found, bring this demolition hammer to an authorized service center for maintenance service.

4. Inspecting the carbon brushes (Fig. 8)

The Motor employs carbon brushes which are consumable parts. When they become worn to or near the “wear limit”, it results 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 8. In addition, always keep carbon brushes clean and ensure that they slide freely within the brush holders. NOTE: Use HITACHI carbon brush No. 86 indicated in Fig. 8.

5. Replacing carbon brushes (Refer to figure for name of parts)

Loosen the screws (Hexagon socket hd. bolt M4 × 10) of the cap covers, then remove the cap covers. After removing the brush caps, the carbon brushes can be removed. After replacing the carbon brushes, tighten the brush caps, then mount the cap covers securely.

6. Grease replacement

This demolition hammer is of fully oil sealed construction to protect against dust incursion and to prevent lubricant leakage. This demolition hammer can be used without grease replenishment for an extended period of time. However, perform the grease replacement to extend the service life. Replace the grease as described below. Fig. 8 Wear limit 0.28” (7 mm) No. of carbon brush 0.67” (17 mm)

䡬 Grease Replacement Period Inspect the grease amount according to the timing replacement period of the carbon brush. (See item 3 in the section MAINTENANCE AND INSPECTION.) Ask for grease replacement at the nearest authorized service center. NOTE: 䡬 The Hitachi Electric Hammer Grease A is of the low viscosity type. When the grease is consumed, purchase from the authorized service center. 䡬 Do not excessively supply the designated amount of grease. Otherwise, this demolition hammer should not operate accurately.

7. Service and repairs

All quality power tools will eventually require servicing or replacement of parts because of wear from normal use. To assure that only authorized replacement parts will be used, all service and repairs must be performed by a authorized service center, ONLY. 01Eng_H90SE_US 9/20/12, 13:2612English

WARNING: Accessories for this power tool are mentioned in this Instruction Manual.

1.1 lbs (500 g) (in a can) (Code No. 980927)

NOTE: Specifications are subject to change without any obligation on the part of the HITACHI. Overall Length 20-15/32" (520 mm) Code No. 985232 Overall Length 21-1/2" (546 mm) Code No. 985233

Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer, birth de- fects or other reproductive harm. Some examples of these chemicals are: ● Lead from lead-based paints, ● Crystalline silica from bricks and cement and other masonry products, and ● Arsenic and chromium from chemically-treated lumber. Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment, such as those dust masks that are specially de- signed to filter out microscopic particles.