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SCREW DRIVER
LIST Nos. W 6VM: 0798
W 6V4: E701
W 6VA4: E702
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
MODELS
W 6VM
W 6V4
W 6VA4
Nov. 2004
W 6VM
W 6V4
W 6VA4
Hitachi
Power Tools
TECHNICAL DATA
AND
SERVICE MANUAL
W

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Summary of Contents for Hitachi W 6VM

  • Page 1 W 6V4 W 6VA4 Hitachi Power Tools SCREW DRIVER W 6VM TECHNICAL DATA W 6V4 W 6VA4 SERVICE MANUAL Nov. 2004 LIST Nos. W 6VM: 0798 W 6V4: E701 W 6VA4: E702 SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT...
  • Page 2 REMARK: 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 6VM Competitor Symbol Utilized Model Name Company Name...
  • Page 3: Table Of Contents

    8-4. Internal Wire Arrangement and Wiring Work .................. 16 8-5. Insulation Tests ..........................17 8-6. No-load Current Values ........................18 9. STANDARD REPAIR TIME (UNIT) SCHEDULES ................ 19 Assembly Diagram for W 6VM Assembly Diagram for W 6V4 Assembly Diagram for W 6VA4...
  • Page 4: Product Name

    The Model W 6VM screw driver is newly added to respond to the increasing market demand for a screw driver operable at 6,000 rpm. Our market share is expected to grow with the release of these new models which broaden our lineup of screw drivers.
  • Page 5: Selling Point Descriptions

    212 (8-11/32") 210 (8-1/4") 2) Ergonomical design for better operation The Models W 6VM, W 6V4 and W 6VA4 are equipped with the following four parts as a result of pursuance of the ergonomical design. Soft grip housing and handle cover The entire body is covered with the uniquely designed elastomer and the grip portion is uneven and matte- finished to make it resistant to slipping.
  • Page 6 The locator is used for adjusting the screw head depth. The current Models W 6V3 and W 6VA3 require the operator to pull the lock sleeve and turn the locator for adjustment. The Models W 6VM, W 6V4 and W 6VA4 are easier to adjust just by turning the locator.
  • Page 7 A new fan developed by the 3-D digital analysis technology is adopted. Thanks to the optimized air passage, the noise level of the Models W 6VM, W 6V4 and W 6VA4 is the lowest in the class. Table 2 shows a comparison of the no-load noise level.
  • Page 8 6) High power motor The motor of the Models W 6VM, W 6V4 and W 6VA4 is more powerful than the current Models W 6V3 and W 6VA3 with the class-top power input. Table 4 shows a comparison of the power input.
  • Page 9: Specifications

    5. SPECIFICATIONS 5-1. Specifications Model W 6VM W 6V4 W 6VA4 Drywall screw 6 mm (1/4") Capacity Self-drilling screw 6 mm (1/4") 6.35 mm (1/4") Bit mounting size Power source Single phase, AC 50 Hz or 60 Hz Type of motor Single phase, AC commutator motor U.S.A., Canada...
  • Page 10: Optional Accessories

    5-2. Optional Accessories (1) For hex-head screws Hex-socket Sub-stopper (B) Magnetic type Non magnetic type H = 6.35 mm H 1/4 H = 6.35 mm H 5/16 H = 7.94 mm H = 7.94 mm H = 9.53 mm H = 9.53 mm H 3/8 H = 10 mm H = 10 mm...
  • Page 11: Comparisons With Similar Products

    6. COMPARISONS WITH SIMILAR PRODUCTS 6-1. W 6VM Maker HITACHI Model W 6VM Drywall screw 6 (1/4") 5 (3/16") 4 (5/32") Capacity Self-drilling screw 6 (1/4") 6 (1/4") U.S.A., Canada Power 750 (120 V, 6.6 A) 710 (115 V, 6.5 A) 680 (120 V, 6.0 A)
  • Page 12: Precautions In Sales Promotion

    7. PRECAUTIONS IN SALES PROMOTION In the interest of promoting the safest and most efficient use of the Models W 6VM, W 6V4 and W 6VA4 electric screwdrivers by all of our customers, it is very important that at the time of sales 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 attached to each tool.
  • Page 13: Self-Drilling Screws

    Specific adjustment procedures are as follows. (1) Head of screw protrudes above workpiece surface (Fig. 1). If dimension A in Fig. 3 is excessively small, the head of the driven screw will protrude above the surface of the workpiece material as shown in Fig. 1. To adjust dimension A, rotate the locator clockwise as viewed from the screw mounting end (see Note below).
  • Page 14: Variable-Speed Switch

    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.
  • Page 15: Precautions In Disassembly And Reassembly

    8. PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY The numbers in the descriptions below correspond to the item numbers in the Parts List and exploded assembly diagram. The [BOLD] numbers are for the Model W 6VM, the <Bold> numbers for the Models W 6V4 and W 6VA4.
  • Page 16: Reassembly

    Armature [21] <20>. (2) Lubrication Grease: Hitachi Motor Grease (Code No. 930035) Application: (a) Fill a moderate amount of grease in Gear Cover (A) Ass'y [8] <8>. (If Gear Cover (A) Ass'y [8] <8> is new, fill it with 7 g of grease.)
  • Page 17 (3) Tightening torque Handle cover retaining screws 1.5 --- 2.5 N m {15 --- 25 kg cm (13.0 --- 21.7 in-Ibs)} • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Cord clip retaining screws 1.5 --- 2.5 N m {15 --- 25 kg...
  • Page 18: Wiring Diagrams

    8-3. Wiring Diagrams (1) Products with noise suppressor Fig. 7 (2) Products without noise suppressor Fig. 8 --- 15 ---...
  • Page 19: Internal Wire Arrangement And Wiring Work

    8-4. Internal Wire Arrangement and Wiring Work A. Internal wire arrangement (1) Products with noise suppressor (2) Products without noise suppressor Fig. 9 Schematic diagram --- 16 ---...
  • Page 20: Insulation Tests

    B. Additional wiring work General internal wiring can be accomplished by referring to paragraph 8-3 and 8-4-A. The following are special instructions for switch connection. (1) Wiring of reversing switch Insert the lead wire (brown) coming from the brush holder into the terminal (1) of the reversing switch, and the lead wire (blue) into the terminal (2) as shown in Fig.
  • Page 21: No-Load Current Values

    8-6. No-load Current Values After no-load operation for 30 minutes, the no-load current value should be as follows. Voltage (V) Current (A) max. --- 18 ---...
  • Page 22: Standard Repair Time (Unit) Schedules

    9. STANDARD REPAIR TIME (UNIT) SCHEDULES Variable MODEL 60 min. Fixed Work Flow W 6V4 W 6VA4 W 6VM Switch Cord Cord Armor Housing Stator General Assembly Armature Ball Bearing (608VV) Washer (A) Inner Cover Ass'y Ball Bearing (608VV) Ball Bearing...
  • Page 23 Hitachi Power Tools LIST NO. 0798 ELECTRIC TOOL PARTS LIST SCREW DRIVER 2004 • • Model W 6VM (E1)
  • Page 24 PARTS W 6VM ITEM CODE NO. DESCRIPTION REMARKS USED 876-031 O-RING (S-16) 323-487 LOCATOR ASS’Y INCLUD.3 323-488 CLICK SPRING 971-468 FRINGER (A) 317-662 O-RING (F) 323-558 PROTECT COVER (A) 321-057 TAPPING SCREW D4X25 (BLACK) 323-486 GEAR COVER (A) ASS’Y INCLUD. 5...
  • Page 25 PARTS W 6VM ITEM CODE NO. REMARKS DESCRIPTION USED 500-409Z CORD (CORD ARMOR D8.8) FOR KOR 937-631 CORD CLIP 984-750 TAPPING SCREW (W/FLANGE) D4X16 959-140 CONNECTOR 50091 (10 PCS.) EXCEPT FOR USA, CAN, KUW, HKG, THA 930-039 NOISE SUPPRESSOR EXCEPT FOR USA, CAN, KUW, HKG, THA...
  • Page 26 STANDARD ACCESSORIES W 6VM ITEM CODE NO. DESCRIPTION REMARKS USED 323-352 SUB STOPPER (G) 1 EXCEPT FOR USA, CAN, AUS, HOL, HKG 971-511Z + DRIVER BIT (A) NO.2 25L 317-674 MAGNETIC BIT HOLDER ASS’Y (41L) 1 INCLUD. 502 323-353 MAGNETIC BIT HOLDER ASS’Y (81.1L) 1 INCLUD.
  • Page 27 Hitachi Power Tools LIST NO. E701 ELECTRIC TOOL PARTS LIST SCREW DRIVER 2004 • • Model W 6V4 (E1)
  • Page 28 HEX. HD. TAPPING SCREW D4X50 340-599C STATOR 110V-120V 340-599E STATOR 220V-240V 608-VVM BALL BEARING 608VVC2PS2L NAME PLATE 323-471 HOOK HITACHI LABEL 323-512 BRUSH HOLDER (A) 999-091 CARBON BRUSH (AUTO STOP TYPE) (1 PAIR) 323-489 INTERNAL WIRE (BROWN) 1 FOR THA, HKG, KUW, USA, CAN...
  • Page 29 PARTS W 6V4 ITEM CODE NO. REMARKS DESCRIPTION USED 937-631 CORD CLIP 984-750 TAPPING SCREW (W/FLANGE) D4X16 959-140 CONNECTOR 50091 (10 PCS.) 2 EXCEPT FOR THA, HKG, KUW, USA, CAN 930-039 NOISE SUPPRESSOR 1 EXCEPT FOR THA, HKG, KUW, USA, CAN 994-273 NOISE SUPPRESSOR 1 EXCEPT FOR THA, HKG, KUW, USA, CAN...
  • Page 30 STANDARD ACCESSORIES W 6V4 ITEM CODE NO. DESCRIPTION REMARKS USED 323-352 SUB STOPPER (G) EXCEPT FOR HKG, AUS, HOL, USA, CAN 971-511Z + DRIVER BIT (A) NO. 2 25L 317-674 MAGNETIC BIT HOLDER ASS’Y (41L) INCLUD. 502 323-354 MAGNETIC BIT HOLDER ASS’Y (47.1L) INCLUD.
  • Page 31 Hitachi Power Tools LIST NO. E702 ELECTRIC TOOL PARTS LIST SCREW DRIVER 2004 • • Model W 6VA4 (E1)
  • Page 32 HEX. HD. TAPPING SCREW D4X50 340-599C STATOR 110V-120V 340-599E STATOR 220V-240V 608-VVM BALL BEARING 608VVC2PS2L NAME PLATE 323-471 HOOK HITACHI LABEL 323-512 BRUSH HOLDER (A) 999-091 CARBON BRUSH (AUTO STOP TYPE) (1 PAIR) 323-489 INTERNAL WIRE (BROWN) 1 FOR SAU, SIN, HKG, USA, CAN, IND...
  • Page 33 PARTS W 6VA4 ITEM CODE NO. REMARKS DESCRIPTION USED 323-563 CORD (LENGTH 7.5M) 1 (CORD ARMOR D8.8) FOR SUI 937-631 CORD CLIP 984-750 TAPPING SCREW (W/FLANGE) D4X16 959-140 CONNECTOR 50091 (10 PCS.) EXCEPT FOR SAU, SIN, HKG, USA, CAN, IND 930-039 NOISE SUPPRESSOR EXCEPT FOR SAU, SIN, HKG, USA, CAN, IND...
  • Page 34 STANDARD ACCESSORIES W 6VA4 ITEM CODE NO. DESCRIPTION REMARKS USED 323-352 SUB STOPPER (G) EXCEPT FOR HKG, NZL, AUS, USA, CAN, TPE 971-511Z + DRIVER BIT (A) NO. 2 25L 1 EXCEPT FOR TPE 317-674 MAGNETIC BIT HOLDER ASS’Y (41L) 1 INCLUD.

This manual is also suitable for:

W 6v4W 6va4

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