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INSTRUCTION MANUAL
AND
SAFETY INSTRUCTIONS
FOR
ROTARY HAMMER
MODEL DH 24PD
WARNING:
Improper and unsafe use of this power tool can result in
death or serious bodily injury!
This manual contains important information about prod-
uct safety. Please read and understand this manual before
operating the power tool. Please keep this manual avail-
able for others before they use the power tool.
DOUBLE INSULATION
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— CONTENTS — Page IMPORTANT INFORMATION ...................................................................................3 MEANINGS OF SIGNAL WORDS ...........................................................................3 SAFETY ........................................................................................................................4 GENERAL SAFETY RULES ......................................................................................4 SPECIFIC SAFETY RULES AND SYMBOLS .
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IMPORTANT INFORMATION Read and understand all of the operating instructions, safety precautions and warn- ings 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
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SAFETY GENERAL SAFETY RULES : Read and understand all instructions. WARNING Failure to follow all instructions listed below, may result in elec- tric shock, fire and/or serious personal injury. SAVE THESE INSTRUCTIONS 1. Work Area (1) Keep your work area clean and well lit. Cluttered benches and dark areas invite accidents. (2) Do not operate power tools in explosive atmospheres, such as in the pres- ence of flammable liquids, gases, or dust. Power tools create sparks which may ignite the dust o
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(2) Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep your hair, clothing, and gloves away from moving parts. Loose clothes, jewelry, or long hair can be caught in moving parts. (3) Avoid accidental starting. Be sure switch is off before plugging in. Carrying tools with your finger on the switch or plugging in tools that have the switch on invites accidents. (4) Remove adjusting keys or switches before turning the tool on. A wrench or a key that is left attached to a
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(2) When servicing a tool, use only genuine Hitachi replacement parts. Follow instructions in the Maintenance section of this manual. Use of unauthorized parts or failure to follow Maintenance Instruction may create a risk of electric shock or injury. 6. Never touch moving parts. Never place your hands, fingers or other body parts near the tool’s moving parts. 7. Never operate without all guards in place. Never operate this tool without all guards or safety features in place and in proper workin
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17. Never leave tool running unattended. Turn power off. Don’t leave tool until it comes to a complete stop. 18. Carefully handle power tools. Should a power tool be dropped or struck against hard materials inadvertently, it may be deformed, cracked, or damaged. 19. Do not wipe plastic parts with solvent. Solvents such as gasolie, 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 light
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DOUBLE INSULATION FOR SAFER OPERATION To ensure safer operation of this power tool, HITACHI has adopted a double insula- tion 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 and “Double insulation” appear on the power tool or on the nameplate. Although this system has no extern
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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. NAME OF PARTS Grip Nameplate Drill Bit Front Cap Housing Switch Dust Collecting Adaptor Side Handle Lever Change Lever Dust bag Fig. 1 SPECIFICATIONS Motor Single-Phase, Series Commutator Motor Power Source Sin
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ASSEMBLY AND OPERATION APPLICATIONS Rotation and striking 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). PRIOR TO OPERATION 1. Power source Ensure that the power source to be utilized conforms to the power source re- quirements specified on the product nameplate. 2. Power switch Ensure that the switch is in
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Grip Front cap 6. Mounting the drill bit (Fig. 2) Drill bit (1) To attach a drill bit (SDS-plus shank), fully pull the grip in the direction of the arrow as shown in Fig. 2 and insert the drill bit as far as it will go while manu- ally turning. (2) By releasing the grip, the drill bit will Part of SDS-plus shank be secured. Fig. 2 (3) To remove the drill bit, fully pull the grip in the direction of the arrow and pull out the drill bit. Dust Cup 7. Installation of dust cup or dust col- lector (B)
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drill bits which have 6-17/32" (166 mm), 6-19/64" (160 mm) and 4-21/64" (110 mm) overall length. Dump particles after every two or three holes when drilling. Please replace the drill bit after removing dust collector (B). 8. Selecting the driver bit Screw heads or bits will be damaged unless a bit appropriate for the screw di- ameter is employed to drive in the screws. 9. Confirm the direction of bit ro- Lever tation (Fig. 5) The bit rotates clockwise (viewed from the rear side) by pushing t
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5/8" (15 mm) CAUTION: When the drill bit touches an iron reinforcing rod, 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. 7. Attachment Mounting Hole 3. Using the dust-collecting adaptor Rod Hose Dust and dust bag. B Collecting Using this unit with the dust-collecting Adaptor A adaptor and dust bag attached creates a more hygienic working environment free of flying dust. Attach as shown in Fig.
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(2) Adjusting the dust-collecting adaptor. a) Adjusting the position of the dust- collecting adaptor. After firmly inserting the drill bit, loosen the wing bolt and drill bit tip and the end of the dust-collecting adaptor in contact with each other (see Fig.11). Stroke Stopper Wing Bolt b) Setting the hole-drilling depth. Move the stopper to determine the Fig.11 stroke. The stroke is the hole-drill- ing depth (see Fig.11). The maximum hole-drilling depth when using the dust-collecting adaptor
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4. When not using the dust-collecting Cap adaptor Hose Attachment When removing the dust-collecting Hole adaptor and the dust bag to use as a normal rotary hammer, insert the pro- vided cap in the hose attachment hole. Dust Bag Attachment Hole (see Fig.14) After removing the dust bag, the air blowing out from the at- Fig.14 tachment hole is reduced and no air will blow onto your face. Cap Hose Attachment 5. Rotation only Hole Remove the dust-collecting adaptor as it cannot be used. Insert the pr
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6. When driving machine screws Bit (Fig. 17) Socket First, insert the bit into the socket in the end of chuck adaptor (D). Next, mount chuck adaptor (D) on the Front Cap main unit using procedures described Chuck Adaptor (D) in 6 (1), (2), (3), put the tip of the bit in the slots in the head of the screw, grasp Grip the main unit and tighten the screw. Fig. 17 CAUTION: Exercise care not to excessively prolong driving time, otherwise, the screws may be damaged by excessive force. Apply the ro
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8. How to use the drill bit (taper shank) Grip Drill Bit and the taper shank adaptor. (1) Mount the taper shank adaptor to the rotary hammer. (Fig. 18) Taper shank Front Cap (2) Mount the drill bit (taper shank) to the Adaptor taper shank adaptor. (Fig. 18) (3) Turn the switch ON, and drill a hole in Fig. 18 prescribed depth. (4) To remove the drill bit (taper shank), insert the cotter into the slot of the taper shank adaptor and strike the head of the cotter with a hammer supporting on the rest
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MAINTENANCE AND INSPECTION WARNING: Be sure to switch power OFF and disconnect the plug from the receptacle during maintenance and inspection. 1. Inspecting the drill bits Since use of a dull tool will cause motor malfunctioning and degraded efficiency, replace the drill bit with a new one or resharpening without delay when abra- sion is noted. 2. Inspecting the mounting screws Regularly inspect all mounting screws and ensure that they are properly tight- ened. Should any of the screws be loosen
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ACCESSORIES WARNING: Accessories for this power tool are mentioned in this Instruction Manual. The use of any other attachment or accessory can be dangerous and could cause injury or mechanical damage. NOTE: Accessories are subject to change without any obligation on the part of the HITACHI. STANDARD ACCESSORIES (1)Case (Molded plastic) (Code No. 302211) ...............................................................1 (2)Side Handle (Code No. 303659) .............................................
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External dia. Code No. Taper mode Code No. Applicable drill bit 7/16" 7/16" (11 mm) 944460 (11 mm) 31/64" (12.3 mm) Drill bit 31/64" 1/2" (12.7 mm) Morse taper 944461 303617 (Taper (12.3 mm) 9/16" (14.3 mm) (No. 1) shank) 1/2" 73/128" (14.5 mm) 993038 (12.7 mm) 11/16" (17.5 mm) 9/16" 944462 Drill bit (14.3 mm) Morse taper 303618 (Taper 27/32" (21.5 mm) 73/128" (No. 2) shank) 944500 (14.5 mm) Taper shank adaptor formed A- 11/16" A-taper 303619 944463 taper or B-taper is provided as an (17.5 mm) o
