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9-4. No-load Current Value

After no-load operation for 30 minutes, the no-load current should be as follows.

110 V .... 2.5 A or lower

120 V .... 2.4 A or lower

220 V .... 1.2 A or lower

230 V .... 1.3 A or lower

240 V .... 1.2 A or lower

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Содержание WR 14VB

Страница 1: ...TECHNICAL DATA AND SERVICE MANUAL IMPACT WRENCH WR 14VB SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT LIST No E706 Feb 2005 W MODEL WR 14VB Hitachi Power Tools ...

Страница 2: ...is TECHNICAL DATA AND SERVICE MANUAL a symbol is used in the place of company name and model name of our competitor The symbol utilized here is as follows Symbol Utilized Competitor Company Name Model Name C MAKITA TW0200 ...

Страница 3: ...Appropriate Tightening Torque for Bolts 9 6 4 Tightening Torque Characteristics when Using An Extension Cord 10 7 PRECAUTIONS IN SALES PROMOTION 10 7 1 Safety Instructions 10 7 2 Tightening Torque Inspection Prior to Operation 11 7 3 Tightening Torque Variation 11 7 4 Temperature Rise 12 8 OTHER PRECAUTIONS 12 9 REPAIR GUIDE 13 9 1 Disassembly 13 9 2 Reassembly 16 9 3 Insulation Tests 18 9 4 No lo...

Страница 4: ...or nuts etc Construction industry Assembly of scaffolding tightening loosening of formwork bolts Manufacturing industry Tightening loosening of bolts for automobiles rolling stock shipbuilding agricultural machinery and tools construction machinery etc Utility industry Assembly and installation of electric equipment plumbing facilities air conditioning duct assembly etc sanitary fixtures and vario...

Страница 5: ... WH 14 has the resin housing directly secured with screws the Model WR 14VB has the housing containing a brass insert screw for secure screw connection with the aluminum hammer case the screw tightening torque is 2 times greater than the Model WH 14 Thus the Model WR 14VB has higher durability Hammer case aluminum Screw M5 bolt WR 14VB WH 14 Screw M5 bolt Housing resin Insert screw brass Inner cov...

Страница 6: ...sing is covered with elastomer entirely The Model WR 14VB gives no scratch on the floor etc where it is placed because the housing is covered with elastomer entirely In addition the elastomer covered housing prevents the Model WR 14VB from slipping on a slanted surface such as a roof 6 Steplessly variable speed trigger switch and speed change lever The speed can be controlled by varying the amount...

Страница 7: ...ng button Power consumption 420 W Full load current 4 4 A Impact rate Low speed 0 to 2 100 min 1 High speed 0 to 2 800 min 1 Main body 2 2 kg 4 8 lbs Excludes cord and socket Packaged 4 5 kg 9 9 lbs Overall length x height 248 mm x 231 mm 9 49 64 x 9 3 32 Center height 35 mm 1 3 8 Package Cord Side handle Excludes U S A and Canada Plastic case For certain areas Weight Handle configuration T type N...

Страница 8: ...B D D D D D D M 8 M 12 Hexagon socket 12 7 Square drive dimension Sq mm Part name Code No Nominal diameter of applicable bolts Dihedral width H mm Shape Socket primary dimensions mm L ISO Ordinary ISO Small type Inch screw High tension L2 34 34 34 57 34 57 34 57 107 34 34 57 12 7 Square drive dimension Sq mm Part name Code No Nominal diameter of applicable bolts Dihedral width H mm Shape Socket pr...

Страница 9: ... 6 3 Extension bar Code No 873633 4 Corner attachment EW 14R 5 Universal joint Code No 986062 6 Holster Code No 307824 ...

Страница 10: ...umbler switch with forward reverse changeover pushing button 21 600 360 7 0 3 8 33 6 35 1 3 8 2 3 5 1 lbs Single phase AC commutator motor Double insulation Mounted outside 2 5 8 2 ft Not provided M 10 to M 18 M 8 to M 14 250 2 550 2 210 185 1 880 1 640 12 7 1 2 0 to 2 300 0 to 1 800 0 to 2 800 0 to 2 200 HITACHI WR 14VB 248 x 231 9 49 64 x 9 3 32 Steplessly variable speed trigger switch with forw...

Страница 11: ...s Tightening time S Fig 1 Comparison of tightening torque when tightening M16 high tension bolts WR 14VB Low speed The Model WR 14VB provides higher tightening torque than C thanks to the operation with the optimum impact timing WH14 C 3500 3035 in lbs kgf cm 2000 1734 in lbs 2500 2168 in lbs 3000 2602 in lbs 1500 1301 in lbs WR 14VB High speed 1000 867 in lbs 500 434 in lbs 0 N m ...

Страница 12: ...ended axial tightening force to be applied to the bolt kg p Rated axial stress kg mm2 x 0 8 x Effective sectional area of the bolt mm2 k Torque coefficient 0 17 Strength grade Rated axial stress kgf mm2 Material Heat treatment 4 8 8 8 10 9 12 9 29 1 58 2 79 2 95 Carbon steel such as SS and SC Special alloy steel such as SNC SCM and SNCM Not treated Treated Hard material Nominal diameter of bolt Ef...

Страница 13: ...f promoting the safest and most efficient use of the Model WR 14VB by all our customers it is very important that at the time of sale the salesperson carefully ensures that the buyer seriously recognizes the importance of the contents of the Handling Instructions and fully understands the meaning of the precautions listed on the Caution Plate and Name Plate attached to each tool 7 1 1 Handling Ins...

Страница 14: ...ed by the use of a long extension cord depending on the work sites Take the following countermeasures against voltage reduction caused by the resistance of an extension cord and the load current Decrease the resistance of an extension cord Use an extension cord which is as short as possible and has a thick core Compensate for reduction of the voltage by using a step up transformer At this time pre...

Страница 15: ...r 7 4 Temperature Rise If the Model WR 14VB is used for tightening bolts which require long time to be tightened continuously it will cause temperature rise of the motor and burnout subsequently Advise the customer to perform no load operation for several minutes to cool the motor if the outside of the main body becomes hot 8 OTHER PRECAUTIONS 1 Check for cracks or other damage on the socket Crack...

Страница 16: ... Case Ass y 3 c Removal of the Ring Gear 18 Tap the end surface of the Hammer Case Ass y 3 with a wooden hammer to remove the Ring Gear 18 If the Ring Gear 18 cannot be removed warm up the Hammer Case Ass y 3 then tap it with a wooden hammer to remove the Ring Gear 18 2 Removal of the Spring 11 Push the click of the Hammer 8 with a hand press and keep it at the position where the Spring 11 is comp...

Страница 17: ... the Tapping Screw W Flange D4 x 35 Black 33 from the Handle Cover 34 to remove the Handle Cover 34 and Pushing Button A 35 Remove the internal wires of the Choke Coil White 30 or the Internal Wire White 29 Choke Coil Black 32 or the Internal Wire Black 31 Noise Suppressor Ass y 38 Diode Switch 48 and Stator 28 from the Switch 36 by inserting the pin of the special jig Model J 86 into each mountin...

Страница 18: ... 28 30 29 Fig 8 NOTE If the leaf spring is warped excessively it may be deformed permanently and the contact pressure with the internal wires may be decreased If the clearance shown in Fig 9 is more than 0 5 replace the leaf spring with new one Fig 9 ...

Страница 19: ...hould be given to the following items 1 Reassembly of the housing assembly a Mounting the switch Pay attention to the relationship between the terminal numbers of the Switch 36 and the colors of the internal wires Fig 11 Wiring diagram Fig 10 With noise suppressor type DIODE SWITCH BLACK REVERSING UNIT OTHER TYPE REVERSING UNIT ...

Страница 20: ...ween the Hammer 8 and Washer B 10 b Mount the Spring 11 and Washer A 12 to the Hammer 8 then insert the Spindle 16 into it Push the click of the Hammer 8 with a hand press and keep it at the position where the Spring 11 is compressed fully At this time push the Hammer 8 so that the Spindle 16 cam top is aligned with the steel ball guide at the Hammer 8 c Put the two Steel Balls D6 35 7 in the stee...

Страница 21: ...Gear 18 Tooth flanks and inner circumference of the Needle Roller 15 and the Idle Gear Set 17 6 Screw tightening torque Seal Lock Hex Socket Hd Bolt M5 x 35 2 7 8 1 5 N m 80 15 kgf cm Tapping Screw W Flange D4 33 47 49 2 0 0 5 N m 20 5 kgf cm Brush Cap 55 1 0 N m 10 kgf cm Hex Hd Tapping Screw D4 x 45 27 2 9 0 5 N m 30 5 kgf cm 9 3 Insulation Tests On completion of disassembly and repair measure t...

Страница 22: ...4 No load Current Value After no load operation for 30 minutes the no load current should be as follows 110 V 2 5 A or lower 120 V 2 4 A or lower 220 V 1 2 A or lower 230 V 1 3 A or lower 240 V 1 2 A or lower ...

Страница 23: ...2 Steel Ball D3 97 x 29 Spring Hammer Case Ass y O ring M Anvil Ring Gear 10 STANDARD REPAIR TIME UNIT SCHEDULES MODEL 10 20 30 40 50 60 min Fixed Variable Work Flow Switch Diode Switch Cord Handle Cover Cord Armor General Assembly WR 14VB Tail Cover Housing Ass y Stator Spindle Idle Gear Set Needle Roller x 2 ...

Страница 24: ...RENCH Model WR 14VB 2004 12 30 E1 Hitachi Power Tools 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 21 22 23 24 25 26 27 28 29 31 33 34 35 36 37 39 40 41 42 43 44 45 46 47 49 50 51 52 54 55 56 57 58 59 48 501 502 503 504 505 506 6 53 38 30 32 20 ...

Страница 25: ...LL BEARING 608DDC2PS2L 1 25 360 689C ARMATURE 110V 1 25 360 689E ARMATURE 220V 230V 1 25 360 689F ARMATURE 240V 1 26 323 783 FAN GUIDE 1 27 981 824 HEX HD TAPPING SCREW D4X45 2 28 340 607C STATOR 110V 1 28 340 607E STATOR 220V 230V 1 28 340 607F STATOR 240V 1 29 323 799 INTERNAL WIRE WHITE 1 FOR VEN INA SYR SIN HKG KUW 30 323 791 CHOKE COIL WHITE 1 FOR NZL HOL BEL FRA FRG ITA ESP AUT 31 323 800 IN...

Страница 26: ...51 938 051 CORD ARMOR D10 1 1 52 500 247Z CORD 1 CORD ARMOR D8 8 52 500 423Z CORD 1 CORD ARMOR D8 8 FOR SIN KUW 52 500 201Z CORD 1 CORD ARMOR D10 1 FOR VEN 52 500 234Z CORD 1 CORD ARMOR D8 8 FOR INA 52 500 245Z CORD 1 CORD ARMOR D10 1 FOR SYR 52 500 439Z CORD 1 CORD ARMOR D8 8 FOR NZL 52 500 435Z CORD 1 CORD ARMOR D8 8 FOR HKG 53 981 373 TUBE D 2 FOR CORD 54 HITACHI LABEL 1 55 931 266 BRUSH CAP 2 ...

Страница 27: ...EDLE THRUST BEARING NTA 1413 2 608 955 305 COVER 1 609 955 306 NEEDLE BEARING NTN BK1012 1 610 948 227 RETAINING RING FOR D47 HOLE 1 611 955 307 PINION 1 612 955 308 SLEEVE 1 613 955 309 WASHER 1 614 955 310 SOCKET COVER 1 615 955 311 SOCKET 1 616 303 247 SEAL LOCK HEX SOCKET HD BOLT M5X25 6 617 873 537 SOCKET PIN 1 618 873 187 O RING J1SW1516 1 619 323 797 SIDE HANDLE ASS Y 1 INCLUD 620 623 620 9...

Страница 28: ...HEX SOCKET ASS Y LONG 19MMX52L 1 INCLUD 628 629 645 955 150 HEX SOCKET ASS Y LONG 19MMX75L 1 INCLUD 628 629 646 955 143 HEX SOCKET ASS Y LONG 21MMX52L 1 INCLUD 628 629 647 955 151 HEX SOCKET ASS Y LONG 21MMX75L 1 INCLUD 628 629 648 991 480 HEX SOCKET ASS Y LONG 21MMX125L 1 INCLUD 628 629 649 955 144 HEX SOCKET ASS Y LONG 22MMX52L 1 INCLUD 628 629 650 955 146 HEX SOCKET ASS Y LONG 24MMX52L 1 INCLUD...

Страница 29: ... 6 ITEM NO CODE NO DESCRIPTION REMARKS NO USED 12 04 WR 14VB Printed in Japan 041230N ...

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