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7-6. Variable-speed Switch

This switch is equipped with a variable speed control circuit.  Through the control circuit, the speed can be

controlled up to 65 % of maximum speed according to the degree at which the switch is depressed.

A disadvantage of this system is that if the bit becomes locked resulting in stoppage of the motor, the speed

control circuit may be burnt out.  In such a case, the switch should be released  immediately or turned OFF.  To

avoid damage to the switch circuit, the customer should be advised to increase driving speed gradually until the

screw is driven approximately halfway into the workpiece, then depress the trigger to obtain optimum speed.

Fig. 4

Switch characteristics (Approximately shown converted into the linear line)

Maximum speed change point

Trigger stroke

Speed

100 %

65 %

0

Summary of Contents for W 6VB3

Page 1: ...HNICAL DATA AND SERVICE MANUAL SCREW DRIVER W 6VB3 W 8VB2 SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT LIST Nos W 6VB3 0797 W 8VB2 0799 Nov 2004 W MODELS W 6VB3 W 8VB2 Hitachi Power Tools ...

Page 2: ...EMARK Throughout this TECHNICAL DATA AND SERVICE MANUAL a symbol s is are used in the place of company name s and model name s of our competitor s The symbol s utilized here is are as follows Model W 6VB3 Symbol Utilized Competitor Company Name Model Name DeWALT DW264K P Model W 8VB2 ...

Page 3: ...ROMOTION 8 7 1 Handling Instructions 8 7 2 Caution Plates 8 7 3 Screw Driving depth Adjustment 8 7 4 Self drilling Screws 9 7 5 Drywall Screws 9 7 6 Variable speed Switch 10 8 PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY 11 8 1 Disassembly 11 8 2 Reassembly 12 8 3 Wiring Diagrams 14 8 4 Internal Wire Arrangement and Wiring Work 15 8 5 Insulation Tests 16 8 6 No load Current Values 17 9 STANDARD REPAI...

Page 4: ...ed sections Various other interior exterior construction and plate assembly jobs Drywall screws Fastening metal studs and drywall Interior construction Installation of ceilings paneling or partitions in offices shops supermarkets apartment houses schools factories etc Wood screws Interior construction Assembly and installation of interior wood paneling Installation of flooring in gymnasiums and si...

Page 5: ...duces operator fatigue Table 1 Comparison of the length of grip portion Range covered with elastomer 1 Maker Model The length of grip portion mm HITACHI W 6VB3 206 8 1 8 W 6VB2 218 8 19 32 210 8 1 4 212 8 11 32 C B Maker Model The length of grip portion mm HITACHI W 8VB2 206 8 1 8 W 8VB 218 8 19 32 210 8 1 4 P Crosshatched portion Covered with elastomer 1 Short length of grip portion The Models W ...

Page 6: ...just just by turning the locator W 6VB3 W 6VB2 3 The material of the protect cover has extremely lower thermal conductivity than aluminum Therefore the protect cover lessens feeling of coldness or hotness even if the gear cover is touched with bare hands under the severe temperature environment such as in the severely cold areas Russia Eastern Europe and Northern Europe or the severely hot areas M...

Page 7: ... and W 8VB2 eliminates the inconvenience of connecting an extension cord or carrying a cord reel in the work site 6 High power motor The motor of the Models W 6VB3 and W 8VB2 is more powerful than the current Models W 6VB2 and W 8VB with the class top power input Table 4 shows a comparison of the power input Table 2 Comparison of the no load noise level Maker Model No load noise level dB A HITACHI...

Page 8: ... 2 7 A 240 V 750 W Other areas 620 W No load speed 0 2 600 min 0 1 700 min Housing and handle cover Polyamide resin and thermo plastic elastomer Gear cover and inner cover Aluminum alloy Protect cover Thermo plastic elastomer Locator and hook Polyamide resin Enclosure Handle Variable switch with reversing switch Pistol grip handle Weight Net 1 5 kg without cord Gross 2 0 kg Packaging Cord Type Ove...

Page 9: ... mm H 9 53 mm H 10 mm H 10 mm H 1 4 H 5 16 H 3 8 Screw head 2 For other screws Bit type Bit holder Sub stopper No 1 No 2 No 3 No 1 No 2 No 1 No 2 No 3 No 1 No 2 B size 4 mm 5 mm B Magnetic bit holder Short type Magnetic bit holder Non magnetic bit holder Sub stopper G Sub stopper F 3 Plastic case Optional accessories are subject to change without notice ...

Page 10: ...3 lbs 1 4 3 1 lbs 1 5 3 3 lbs 1 5 3 3 lbs m 2 5 8 2 ft U S A Canada Europe Russia and Oceania Asia Africa and other areas W Maker Model Capacity Drywall screw Self drilling screw Wood screw Power input U S A Canada Other areas No load rotation No load noise level 1 Overall length with hex socket Cord length mm mm mm W min dB A mm m W 8VB2 W 8VB HITACHI P 6 1 4 6 1 4 8 6 15 8 6 15 6 2 dia x 50 1 4 ...

Page 11: ...use of the tool by the customer Salespersons must be thoroughly familiar with the contents of the Handling Instructions to be able to offer appropriate guidance to the customer during sales promotion 7 2 Caution Plates The following basic safety precautions are listed on the Name Plate attached to the main body of each tool However these precautions are not listed for European countries For Asia a...

Page 12: ...of 1 5 mm 0 059 One complete rotation of the locator is divided into twelve settings each setting permitting an adjustment of 0 125 mm 0 005 Accordingly if dimension B in Fig 1 is 0 25 mm 0 010 rotate the locator by two settings 7 4 Self drilling Screws Self drilling screws are most suitable for joining wooden and metal materials mounting metallic components onto iron sheets or installing roofing ...

Page 13: ...ting in stoppage of the motor the speed control circuit may be burnt out In such a case the switch should be released immediately or turned OFF To avoid damage to the switch circuit the customer should be advised to increase driving speed gradually until the screw is driven approximately halfway into the workpiece then depress the trigger to obtain optimum speed Fig 4 Switch characteristics Approx...

Page 14: ...es from both sides in the same manner 3 Removal of the Cord 41 39 After loosening the two speed control switch retaining screws loosen the two Tapping Screws W Flange D4 x 16 43 41 which retain the Cord Clip 42 40 and remove the Cord 41 39 together with the Cord Armor D8 8 40 38 B Removal of the armature and stator 1 Removal of Armature D 24 24 Remove the three Tapping Screws D4 x 25 Black 7 7 fro...

Page 15: ... Gear Shaft 14 14 and Ball Bearing 608VVC2PS2L 15 15 from Inner Cover Ass y A 23 23 as a single unit 8 2 Reassembly Reassembly can be accomplished by following the disassembly procedures in reverse However special attention should be given to the following items 1 Fan side Ball Bearing 608VVC2PS2L 19 19 for Armature D 24 24 in Inner Cover Ass y A 23 23 should be renewed in disassembling Armature D...

Page 16: ...ews 1 5 2 5 N m 15 25 kg cm 13 0 21 7 Ibs in Gear cover retaining screws 1 5 2 5 N m 15 25 kg cm 13 0 21 7 Ibs in Stator retaining screws 1 5 2 5 N m 15 25 kg cm 13 0 21 7 Ibs in Speed control switch retaining screws 0 4 0 8 N m 4 8 kg cm 3 5 6 9 Ibs in Inner cover truss screws 1 4 2 2 N m 14 22 kg cm 12 0 18 9 Ibs in ...

Page 17: ... 14 8 3 Wiring Diagrams 1 Products with noise suppressor Fig 7 2 Products without noise suppressor Fig 8 ...

Page 18: ... 15 8 4 Internal Wire Arrangement and Wiring Work A Internal wire arrangement 1 Products with noise suppressor Fig 9 Schematic diagram 2 Products without noise suppressor ...

Page 19: ...e terminal 1 and terminal 2 of the speed control switch as shown in Fig 11 and tighten the screw tightening torque 0 6 _ 0 2 N m 6 _ 2 kgf cm 5 2 _ 1 7 lbs in Insert the lead wire yellow coming from the stator into the terminal M1 and the lead wire white into the terminal M2 Insert each lead wire white coming from the noise suppressor into the terminal C1 and C2 After insertion pull each lead wire...

Page 20: ... 17 8 6 No load Current Values After no load operation for 30 minutes the no load current value should be as follows Current A max Voltage V 110 2 5 115 120 220 230 240 2 5 2 5 1 2 1 2 1 1 ...

Page 21: ...witch Cord Cord Armor Fringer A O Ring F Protect Cover B Armature Ball Bearing 608VV x 2 Washer A Inner Cover Ass y A Ball Bearing 608VV Housing Stator General Assembly W 8VB2 Gear Ass y Gear Shaft Second Pinion Ass y First Gear Gear Cover B Ass y Socket B Ass y Set Ring Steel Ball x 2 Ball Bearing 608VV ...

Page 22: ...SCREW DRIVER Model W 6VB3 2004 8 25 E1 Hitachi Power Tools 501 502 503 504 505 506 28 27 26 25 24 23 19 1 2 4 7 8 3 11 10 12 13 15 14 19 20 9 16 17 18 5 30 31 32 33 34 35 37 36 50 49 48 46 45 44 43 42 40 33 32 31 41 29 38 39 21 507 47 6 22 ...

Page 23: ...5U ARMATURE ASS Y D 120V 1 INCLUD 19 28 24 360 675E ARMATURE D 220V 230V 1 24 360 675F ARMATURE D 240V 1 25 323 472 FAN GUIDE 1 26 961 672 HEX HD TAPPING SCREW D4X50 2 27 340 599C STATOR 110V 120V 1 27 340 599E STATOR 220V 240V 1 28 608 VVM BALL BEARING 608VVC2PS2L 1 29 NAME PLATE 1 30 323 471 HOOK 1 31 HITACHI LABEL 2 32 323 512 BRUSH HOLDER A 2 33 999 091 CARBON BRUSH AUTO STOP TYPE 1 PAIR 2 34 ...

Page 24: ... 140 CONNECTOR 50091 10 PCS 2 EXCEPT FOR USA CAN SAU 45 930 039 NOISE SUPPRESSOR 1 EXCEPT FOR USA CAN SAU 46 994 273 NOISE SUPPRESSOR 1 EXCEPT FOR USA CAN SAU 47 317 667 INTERNAL WIRE 2 EXCEPT FOR USA CAN SAU 48 992 635 EARTH TERMINAL 1 EXCEPT FOR USA CAN SAU 49 323 484 HANDLE COVER 1 50 301 653 TAPPING SCREW W FLANGE D4X20 BLACK 3 ...

Page 25: ...ted in Japan 040825N 601 317 827 SUB STOPPER B H1 4 HEX SOCKET 1 602 985 326 NON MAGNETIC HEX SOCKET 3 8 65L 1 603 985 327 NON MAGNETIC HEX SOCKET 5 16 65L 1 604 985 328 NON MAGNETIC HEX SOCKET 1 4 65L 1 605 985 329 NON MAGNETIC HEX SOCKET 10MM 65L 1 606 982 563Z NON MAGNETIC BIT HOLDER 1 607 982 554Z MAGNETIC BIT HOLDER 75L 1 608 985 333 DRIVER BIT NO 1 25L 1 609 971 512Z DRIVER BIT A NO 3 25L 1 ...

Page 26: ... SCREW DRIVER Model W 8VB2 2004 8 25 E1 Hitachi Power Tools 501 28 27 26 25 24 23 19 502 503 504 1 2 4 7 8 6 3 505 506 507 508 11 10 12 13 15 14 19 20 9 16 17 18 5 30 31 32 33 34 35 48 47 46 44 45 43 42 41 40 38 33 32 31 39 29 36 37 21 22 ...

Page 27: ...60 674 ARMATURE D 110V 1 24 360 675E ARMATURE D 220V 230V 1 24 360 675F ARMATURE D 240V 1 25 323 472 FAN GUIDE 1 26 961 672 HEX HD TAPPING SCREW D4X50 2 27 340 599C STATOR 110V 120V 1 27 340 599E STATOR 220V 240V 1 28 608 VVM BALL BEARING 608VVC2PS2L 1 29 NAME PLATE 1 30 323 471 HOOK 1 31 HITACHI LABEL 2 32 323 512 BRUSH HOLDER A 2 33 999 091 CARBON BRUSH AUTO STOP TYPE 1 PAIR 2 34 323 566 CHOKE C...

Page 28: ...RNATIVE PARTS 3 ITEM NO CODE NO DESCRIPTION REMARKS NO USED PARTS 8 04 W 8VB2 45 317 667 INTERNAL WIRE 2 46 992 635 EARTH TERMINAL 1 47 323 484 HANDLE COVER 1 48 301 653 TAPPING SCREW W FLANGE D4X20 BLACK 3 ...

Page 29: ...10 904 CASE 1 FOR ESP 601 317 827 SUB STOPPER B H1 4 HEX SOCKET 1 602 985 326 NON MAGNETIC HEX SOCKET 3 8 65L 1 603 985 327 NON MAGNETIC HEX SOCKET 5 16 65L 1 604 985 328 NON MAGNETIC HEX SOCKET 1 4 65L 1 605 985 329 NON MAGNETIC HEX SOCKET 10MM 65L 1 606 985 330 MAGNETIC HEX SOCKET 3 8 X65L 1 607 985 332 MAGNETIC HEX SOCKET 1 4 X65L 1 608 982 563Z NON MAGNETIC BIT HOLDER 1 609 982 554Z MAGNETIC B...

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