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Hitachi WH 8DC2 Instruction Manual

Cordless impact driver
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INSTRUCTION MANUAL
AND

SAFETY INSTRUCTIONS

FOR
CORDLESS IMPACT DRIVER
Variable speed
MODEL WH 8DC2
WARNING:
Improper and unsafe use of this power tool can result in
death or serious bodily injury!
This manual contains important information about product
safety. Please read and understand this manual before
operating the power tool. Please keep this manual available
for others before they use the power tool.
1

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Summary of Contents for Hitachi WH 8DC2

  • Page 1: Safety Instructions

    INSTRUCTION MANUAL SAFETY INSTRUCTIONS CORDLESS IMPACT DRIVER Variable speed MODEL WH 8DC2 WARNING: Improper and unsafe use of this power tool can result in death or serious bodily injury! This manual contains important information about product safety. Please read and understand this manual before operating the power tool.

  • Page 2: Table Of Contents

    CONTENTS Page IMPORTANT INFORMATION ..................3 MEANINGS OF SIGNAL WORDS ................3 SAFETY IMPORTANT SAFETY INSTRUCTIONS FOR USING ALL POWER TOOLS ..............4 IMPORTANT SAFETY INSTRUCTIONS FOR USE OF THE CORDLESS IMPACT DRIVER ..........7 IMPORTANT SAFETY INSTRUCTIONS FOR BATTERY CHARGER ................7 IMPORTANT SAFETY INSTRUCTIONS FOR USE OF THE BATTERY AND BATTERY CHARGER .......

  • Page 3: Important Information

    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, unless you first confirm that the planned use will be safe for you and others.

  • Page 4: Safety

    SAFETY IMPORTANT SAFETY INSTRUCTIONS FOR USING ALL POWER TOOLS WARNING: Death or serious bodily injury could result from improper or unsafe use of power tools. To avoid these risks, follow these basic safety instructions: READ ALL INSTRUCTIONS NEVER TOUCH MOVING PARTS. Never place your hands, fingers or other body parts near the tool’s moving parts.
  • Page 5 KEEP CHILDREN AWAY. Do not let visitors contact tool. All visitors should be kept safely away from work area. DON’T FORCE TOOL. It will do the job better and safer at the rate for which it was intended. USE RIGHT TOOL. Don’t force small tool or attachment to do the job of a heavy-duty tool.
  • Page 6 Wipe plastic parts with a soft cloth lightly dampened with soapy water. USE ONLY AUTHENTIC HITACHI REPLACEMENT PARTS. Replacement parts not manufactured by Hitachi may void your warranty and can lead to malfunction and resulting injuries. Authentic Hitachi parts are...

  • Page 7: Important Safety Instructions For Use Of The Cordless Impact Driver

    2. Before using battery charger, read all instructions and cautionary markings on (1) battery charger, (2) battery, and (3) product using battery. 3. To reduce risk of injury, charge HITACHI rechargeable batteries type EB7, EB9, EB12, EB2, B-2, B-3 or B-4. Other type of batteries may burst causing personal injury and damage.
  • Page 8 An extension cord should not be used unless absolutely necessary. Use of improper extension cord could result in a risk of fire and electric shock. If extension cord must be used make sure: a. That blades of extension cord are the same number, size, and shape as those of plug on battery charger: b.

  • Page 9: Important Safety Instructions For Use Of The Battery And Battery Charger

    UC12Y battery charger, be sure to read all instructions and cautionary statements on it, the battery and in this manual. REMEMBER: USE ONLY HITACHI BATTERIES TYPES EB7, EB9, EB12, EB2, B-2, B-3 or B-4. OTHER TYPES OF BATTERIES MAY BURST AND CAUSE INJURY!

  • Page 10: Disposal Of The Exhausted Battery

    DISPOSAL OF THE EXHAUSTED BATTERY WARNING: Do not dispose of the exhausted battery. The battery must explode if it is incinerated. The product that you have pur- chased contains a rechargeable battery. The battery is recy- clable. At the end of it’s useful life, under various state and local laws, it may be illegal to dispose of this battery into the municipal waste stream.

  • Page 11: Operation And Maintenance

    OPERATION AND MAINTENANCE 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 attach- ments that differ from those on your own power tool. MODEL WH8DC2: with charger NAME OF PARTS...

  • Page 12: Specifications

    SPECIFICATIONS 1. Cordless Impact Driver (WH8DC2) Motor DC Motor No-load speed 0 – 2200 rpm Capacity 5/32'’ (4 mm) – 5/16'’ (8 mm) (Small screw) 5/32'’ (4 mm) – 15/32'’ (12 mm) (Ordinary bolt) Tightening torque Maximum 58 ft-lb (800 kg-cm) Tightening is M10 high tensile bolt, when fully charged in 68°F (20°C) temp.

  • Page 13: Accessories

    ACCESSORIES WARNING: Accessories for this power tool are mentioned in this Instruction Manual. The use of any other attachment or accessory can be danger- ous and could cause injury or mechanical damage. STANDARD ACCESSORIES Battery Charger (UC12Y) ..1 Fig. 3 OPTIONAL ACCESSORIES...sold separately 1.

  • Page 14: Applications

    3. Hexagonal socket Engraved Engraved characters Part Name Code No. characters 5 mm Hexagonal socket 996177 6 mm Eexagonal socket 985329 5/16" Hexagonal socket 996178 8 mm Hexagonal socket 996179 10 mm Hexagonal socket 996180 (small type) 10 mm Hexagonal socket 996181 10 mm Hexagonal socket 996182...

  • Page 15: Removal And Installation Method Of Battery

    REMOVAL AND INSTALLATION METHOD OF BATTERY How to remove the battery. Hold the handle tight. Handle Press the latch located at the front of the battery and pull out the battery. (Fig. 9) How to install the battery. Position the battery so that the latch faces toward the switch trigger in the handle and insert the battery.
  • Page 16 WARNING: Do not use the electrical cord if damaged. Have it repaired immediately. 2. Insert the battery to the battery charger. Insert the battery into the battery charger as shown in Fig. 10. Make sure it contacts the bottom of the battery charger. 3.

  • Page 17: Prior To Operation

    If there are no foreign objects, it is probable that the battery or charger is malfunctioning. Bring them to HITACHI AUTHORIZED SERVICE CENTER. PRIOR TO OPERATION 1. Preparing and checking the work environment Make sure that the work site meets all the conditions laid forth in the precautions.

  • Page 18: How To Use

    HOW TO USE 1. Check the direction of rotation. Indication The bit rotates clockwise (viewed from the rear side) by pushing the R-side of the push button. Push The L-side of the push button is pushed to turn the bit counterclockwise. (See Fig.

  • Page 19: Operational Cautions

    4. Number of screw or bolt tightenings possible (with one charge) Please refer to the table below for the number of bolt tightenings possible with one charge. Tightening No. of *Bolt used time tightenings 3/8'' (10 mm) High 1 sec Approx.

  • Page 20: Maintenance And Inspection

    3. Tightening torque Refer to Fig. 13 for the tightening torque of screws (according to size), under the conditions shown in Fig. 14. Please use this example as a general reference, as tightening torque will vary according to tightening conditions. NOTE If a long striking time is used, screws will be strongly tightened.

  • Page 21: Storage

    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 HITACHI AUTHORIZED SERVICE CENTER, ONLY.
  • Page 23 Charger (Model UC12Y) Guide Spring Case Guide Sleeve (A) Oil Seal Parts are subject to change without any Metal obligation on the part of the HITACHI due to Rubber Washer improvements. Washer (F) Steel Ball D3.175 Anvil (H) Steel Ball D5.556...
  • Page 24 Please contact HITACHI KOKI U.S.A. LTD. at 1-800-59-TOOLS (toll free), or HITACHI AUTHORIZED POWER TOOL NICKEL-CADMIUM BATTERY MUST BE RE- SERVICE CENTER regarding COLLEC- CYCLED OR TION. DISPOSED OF PROPERLY. Sinagawa Intercity Tower A, 15-1, Konan 2-chome Minato-ku, Tokyo 108-6020, Japan Code No.

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