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1

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.

Summary of Contents for WH 8DC2

Page 1: ...RNING 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 ...

Page 2: ...RTANT SAFETY INSTRUCTIONS FOR USE OF THE BATTERY AND BATTERY CHARGER 9 DISPOSAL OF THE EXHAUSTED BATTERY 10 OPERATION AND MAINTENANCE MODEL 11 NAME OF PARTS 11 SPECIFICATIONS 12 ACCESSORIES 13 STANDARD ACCESSORIES 13 OPTIONAL ACCESSORIES 13 APPLICATIONS 14 REMOVAL AND INSTALLATION METHOD OF BATTERY 15 CHARGING METHOD 15 PRIOR TO OPERATION 17 HOW TO USE 18 OPERATIONAL CAUTIONS 19 MAINTENANCE AND IN...

Page 3: ...n and maintenance instruc tions 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 unless you first confirm that the planned use will be safe for you and others The warranty of this power tool is separately pack...

Page 4: ...s or other debris by using safety goggles or equivalent eye protection Wear ear protec tion to protect yourself from excessive noise 4 AVOID UNINTENTIONAL STARTING Don t carry the tool with your finger near the power switch 5 STORE TOOL PROPERLY When not in use the tool should be stored in a dry place Keep out of reach of children Lock out the storage area 6 KEEP WORK AREA CLEAN Cluttered areas an...

Page 5: ...clean for better and safer performance Follow instructions for lubricating and changing accessories Keep handles dry clean and free from oil and grease 16 REMOVE ADJUSTING KEYS AND WRENCHES Keys and adjusting wrenches remove from tool before turning it on 17 STAY ALERT Watch what you are doing Use common sense Do not operate tool when you are tired Tools should never be used by you if you are unde...

Page 6: ...il repaired 24 BLADES AND ACCESSORIES MUST BE SECURELY MOUNTED TO THE TOOL Prevent potential injuries to yourself or others Blades cutting implements and accessories which have been mounted to the tool should be secure and tight 25 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 usin...

Page 7: ...ew can damage the screw head and will not give the prescribed tightening torque 8 Be careful that foreign matters do not block the holes located on both sides of the handle Also do not close the holes with a tape The holes act an important role IMPORTANT SAFETY INSTRUC TIONS FOR BATTERY CHARGER 1 This manual contains important safety and operating instructions for battery charger Model UC 12Y 2 Be...

Page 8: ...50 15 100 30 150 45 0 2 18 18 18 16 2 3 18 18 16 14 3 4 18 18 16 14 If the input rating of a battery charger is given in watts rather than in amperes the corresponding ampere rating is to be determined by dividing the wattage rating by the voltage rating for example 9 Do not operate battery charger with damaged cord or plug replace them immediately 10 Do not operate battery charger if it has recei...

Page 9: ...ny objects into the battery charger s air vents Electric shock or damage to the battery charger may result 5 NEVER charge outdoors Keep the battery away from direct sunlight and use only where there is low humidity and good ventilation 6 NEVER charge when the temperature is below 41 F 5 C or above 104 F 40 C 7 NEVER connect two battery chargers together 8 NEVER insert foreign objects into the hole...

Page 10: ...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 Check with your local solid waste officials for details in your area for recycling options or proper disposal SAVE THESE INSTRUCTIONS AND MAKE THEM AVAILABLE TO OTHER USERS OF THIS TOOL ...

Page 11: ...ustrations 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 1 Impact Driver WH8DC2 2 Battery Charger UC12Y Body Cord Pilot Lamp Nameplate Battery Installation Hole Nameplate Battery EB9 Guide Sleeve Switch Trigger Push Button Terminal Hole Nameplate Latch 䡬 Battery EB9 Fig 1 Fig 2 ...

Page 12: ...ening time 3 sec Use hexagonal socket Bit shank size 1 4 6 35 mm Hex Battery EB9 Nickel cadmium battery Voltage DC9 6V Charging discharging frequency about 500 times Weight 3 1 Ibs 1 4kg SPECIFICATIONS 1 Cordless Impact Driver WH8DC2 2 Battery Charger UC12Y Input power source Single phase AC 120V 60Hz Charging time Approx One hour At a temperature of 68 F 20 C Charger Charging voltage DC 2 4 12V C...

Page 13: ...this Instruction Manual The use of any other attachment or accessory can be danger ous and could cause injury or mechanical damage STANDARD ACCESSORIES OPTIONAL ACCESSORIES sold separately 1 Battery EB9 Code No 991644Z 2 Phillips bit Fig 4 Fig 5 2 50 mm Fig 3 Bit No Code No No 2 992671 No 3 992672 ...

Page 14: ... Fig 6 Part Name Engraved L B Code No characters 5 mm Hexagonal socket 8 65 8 996177 6 mm Eexagonal socket 10 65 10 985329 5 16 Hexagonal socket 12 65 12 996178 8 mm Hexagonal socket 13 65 13 996179 10 mm Hexagonal socket 14 65 14 996180 small type 10 mm Hexagonal socket 16 65 16 996181 10 mm Hexagonal socket 17 65 17 996182 1 2 Hexagonal long socket 21 166 21 996197 Fig 8 Fig 7 3 17 64 83mm ø35 6...

Page 15: ...he charger will burn up 1 Insert the plug of battery charger into the receptacle When the plug of battery charger has been inserted into the receptacle pilot lamp will blink slowly At 1 second inter vals Fig 10 Fig 9 Pilot Lamp Nameplate 䡬 How to remove the battery Hold the handle tight Press the latch located at the front of the battery and pull out the battery Fig 9 䡬 How to install the battery ...

Page 16: ...attery is fully charged the pilot lamp will blink slowly At 1 second intervals See Table 2 Table 2 Indications of the pilot lamp Before charging Blinks Lights for 0 5 seconds Goes out for 0 5 seconds While charging Lights Lights continuously Charging complete Blinks Lights for 0 5 seconds Goes out for 0 5 seconds Charging impossible Blinks Lights for 0 1 seconds Goes out for 0 1 seconds 4 Disconne...

Page 17: ...cts 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 2 Checking the battery Make sure that the battery is installed firmly If it is at all loose it can fall off and cause an accident 3 Instal...

Page 18: ... switch trigger is pulled slightly and increases as the switch is pulled more Push Button Push Clockwise Fig 12 Counterclockwise Push NOTE A buzzing noise is produced when the motor is about to rotate this is only a noise not a machine failure 3 Tightening and loosening screws Install the bit that matches the screw line up the bit in the grooves of the head of the screw then tighten it Push the im...

Page 19: ...tighten screws let the unit rest for about 15 minutes If you continue using the unit immedi ately after replacing the batteries the motorandswitchetc maybecomevery hot and may burn out 2 Cautions on use of the speed con trol switch This switch has a built in electronic circuit which infinitely varies the rota tion speed Consequently when the switch trigger is pulled only slightly low speed rotatio...

Page 20: ...use a tightening time suitable for the screw In particular if a long tightening time is used in the case of screws smaller than 1 4 6 mm there is a danger of the screw breaking so please confirm the tightening time and the tightening torque beforehand MAINTENANCE AND INSPECTION CAUTION Pull out battery before doing any inspection or maintenance 1 Checking the condition of the bit The bits should b...

Page 21: ...ll 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 NOTE Specifications are subject to change without any obligation on the part of the HITACHI ...

Page 22: ...22 ...

Page 23: ...er C 22 Ball Bearing 6001VVCMPS2L 23 Inner Cover 24 Damper 25 Motor 26 Tapping Screw W Flange D4 20 27 Nameplate 28 HITACHI Label 29A Housing A B Set 30 Machine Screw W Sp Washer M3 35 31A Switch Ass y 32 Pushing Button 33A Fin Ass y 34 Strap 35A Terminal C Brown 36 Terminal Support 37A Terminal C Blue 38A S Tight Screw D3 5 6 Item Part Name No 39 Grip Tape 40 Battery EB9 501 Charger Model UC12Y 5...

Page 24: ... Tokyo 108 6020 Japan 912 Code No C99065462 N Printed in Japan Please contact HITACHI KOKI U S A LTD at 1 800 59 TOOLS toll free or HITACHI AUTHORIZED POWER TOOL SERVICE CENTER regarding COLLEC TION NICKEL CADMIUM BATTERYMUSTBERE CYCLED OR DISPOSED OF PROPERLY ...

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