Hitachi WH 8D2, Instruction Manual And Safety Instructions

Page 1: ...afe 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 MODEL WH 8D2 ...

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 16 REMOVAL AND INSTALLATION METHOD OF BATTERY 17 CHARGING METHOD 17 PRIOR TO OPERATION 19 HOW TO USE 20 OPERATIONAL CAUTIONS 21 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: ...n spins around it may cause injury to hands or bodies or the resuluting intense vibration may cause the user to drop the tool 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 inst...

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 WH8D2 with charger and case NAME OF PARTS 1 Impact Wrench WH8D2 2 Battery Charger UC12Y Socket Nameplate Push Button Switch Trigger Battery EB9 䡬 Battery EB9 Terminal Hole Nameplate Latch Fig 1 Fig 2 Cord Body Battery Installation Hole Nameplate Pilot Lamp ...

Page 12: ... charged in 68 F 20 C temp Tightening time 3 sec Use hexagonal socket Square drive 3 8 9 5 mm Battery EB9 Nickel cadmium battery Voltage DC9 6V Charging discharging frequency about 500 times Weight 3 1 Ibs 1 4kg 2 Battery Charger UC12Y Input power source Single phase AC 120V 60Hz Charging time Approx One hour At a temperature of 68 F 20 Charger Charging voltage DC 2 4 12V Charging current DC 1 3A ...

Page 13: ...s 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 OPTIONAL ACCESSORIES sold separately 1 Battery EB9 Code No 991644Z 1 Fig 4 1 ...

Page 14: ...1 4 5 8 33 mm 6 mm 16 mm 1 5 16 9 32 3 4 33 mm 7 mm 19 mm 1 5 16 5 16 25 32 33 mm 8 mm 20 mm 1 5 16 5 16 13 16 33 mm 8 mm 21 mm 1 5 16 11 32 15 16 33 mm 9 mm 24 mm 1 5 16 3 8 1 33 mm 10 mm 25 mm 1 5 16 3 8 1 1 32 33 mm 10 mm 26 mm 1 5 16 15 32 1 1 16 33 mm 12 mm 27 5 mm Square head drive dimen sions S Part Name Code No Hexagonal width across flats H Suitable Bolt Diameter Main Socket Dimensions IS...

Page 15: ...m 48 mm 18 4 mm 2 3 8 9 16 1 7 8 3 4 60 mm 14 mm 48 mm 18 9 mm 2 3 8 19 32 1 7 8 49 64 60 mm 15 mm 48 mm 19 5 mm 2 3 8 19 32 1 7 8 15 16 60 mm 15 mm 48 mm 24 mm 2 3 8 19 32 1 7 8 1 60 mm 15 mm 48 mm 25 mm 2 3 8 5 8 1 7 8 1 1 32 60 mm 16 mm 48 mm 26 mm 2 3 8 21 32 1 7 8 1 1 16 60 mm 17 mm 48 mm 27 5 mm 4 Extension bar Code No 996143 The extension bar is convenient for working in very restricted spa...

Page 16: ...e item OPERATIONAL CAUTIONS Fig 8 Applicable bit 1 4 6 35 mm Bit No L 5 8 16 mm Fig 9 Bit No L Code No No 2 1 3 4 45 mm 955229 2 3 4 70 mm 955654 No 3 1 3 4 45 mm 955230 2 3 4 70 mm 955655 CAUTION Recommended accessories for this Electric Power Tool are mentioned in this manual The use of any other attachment or accessory might be hazardous APPLICATIONS 䡬 Tightening and loosening of all types of b...

Page 17: ...tery Latch CHARGING METHOD NOTE Before plugging into the receptacle make sure the following points 䡬 Thepowersourcevoltageisstatedonthe nameplate 䡬 The cord is not damaged WARNING Do not charge at voltage higher than indicated on the nameplate If charged at voltage higher than indi cated on the nameplate the charger will burn up 1 Insert the plug of battery charger into the receptacle When the plu...

Page 18: ...ly charged the pilot lamp will blink slowly At 1 second intervals See Table 4 Table 4 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 7 7 7 7 7 7 7 7 7 7 7 7...

Page 19: ... Confirm that the battery is mounted correctly 2 Selecting the socket to be matched to the bolt Be sure to use a socket which is matched to the bolt to be tightened Using an improper socket will result not only in insufficient tightening but also in damage to the socket or nut A worn or deformed hex or suqare holed socket will not give an adequate tightness for fitting to the nut or anvil conseque...

Page 20: ...es When trigger is let loose the socket stops R Indication Clockwise Push Button Push Counterclockwise Fig 13 3 Tightening and loosening bolts A hex socket matching the bolt or nut must firest be selected Then mount the socket on the anvil and grip the nut to be tightened with the hex socket Holding the wrench in line with the bolt press the power switch to impact the nut for several second If the...

Page 21: ...t the unit rest for about 15 minutes Ifyoucontinueusingtheunitimmediatelyafterreplacingthebatteries themotor and switch etc may become very hot and may burn out 2 Tightening torque Refer to Fig 14 15 16 and 17 for the tightening torque of bolts according to size under the conditions shown in Fig 18 Please use this example as a general reference as tightening torque will vary according to tightenin...

Page 22: ... Fig 14 3 8 x 1 3 16 M10 x 30 mm Kg cm ft lb 1 4 M6 High tensile bolt 1 4 Ordinary bolt M6 High tensile bolt High tensile bolt High tensile bolt Ordinary bolt Fig 15 Fig 16 Fig 17 Tightening time sec Steel plate thickness t 3 8 10 mm Tightening time sec Steel plate thickness t 3 8 10 mm Kg cm ft lb Tightening time sec Steel plate thickness t 3 8 10 mm Tightening time sec Steel plate thickness t 3 ...

Page 23: ...ipbetweentighteningtorqueandthenumberoftightenings for a 3 8 M10 high tensile bolt As shown tightening torque gradually weakens with the increase in the number of tightenings In particular as the level decreases very close to the complete discharge a margin in graph the unit s impact weakens the number of time impacts declines and tightening torque drops off sharply If this occurs check torque lev...

Page 24: ...p some bolts before the job with hand torque wernch Factors affecting the tightening torque are as follows 1 Voltage When the discharge margin is reached voltage decreases and tightening torque declines 2 Operating time The tightening torque increases when the operating time increases But the tightening torque does not increase above a certain value even if the tool is driven for a long time See F...

Page 25: ...ey are tight CAUTION Using this power tool with loosen screws is extremely dangerous 3 Check for Dust Dust may be removed with a soft cloth or a cloth dampened with soapy water Do not use bleach chlorine gasoline or thinner for they may damage the plastics STORAGE Storing in a place below 104 F 40 C and out of the reach of children SERVICE AND REPAIRS All quality power tools will eventually requir...

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Page 27: ... Washer G 8 Spring 9 Stopper A 10 Washer H 11 Spindle 12 Idle Gear 13 Needle Roller 14 Washer C 15 Ball Bearing 6001VVCMPS2L 16 Inner Cover 17 Damper 18 Motor 19 Tapping Screw W Flange D4 20 20 Nameplate 21 HITACHI Label 22 Housing A B Set 23 Machine Screw W Sp Washer M3 5 24 Switch Ass y 25 Pushing Button 26 Strap 27 Terminal C Brown 28 Terminal Support 29 Terminal C Blue 30 Grip Tape 31 Battery ...

Page 28: ...Tokyo 108 6020 Japan 908 Code No C99065562 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 ...