HITACHI W 6VM, W 6V4, W 6VA4 User Manual

MODELS

W 6VM W 6V4 W 6VA4

SCREW DRIVER

W 6VM W 6V4 W 6VA4

Hitachi

Power Tools

TECHNICAL DATA

AND

SERVICE MANUAL



LIST Nos. W 6VM: 0798

W 6V4: E701

W 6VA4: E702

Nov. 2004

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

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

Company Name

Model Name

Model W 6V4

Symbol Utilized

MAKITA

DeWALT

Company Name

MAKITA

BOSCH

DeWALT

DW255 (DW275K)

Competitor

1404VSR (GSR6-40TE)

6825

Model Name

6824

DW272

Model W 6VA4

Symbol Utilized

Competitor

Company Name

MAKITA

BOSCH

Milwaukee

Model Name

6823

1405VSR (GSR6-25TE)

6740-20

Page

1. PRODUCT NAME ............................................................................................................................ 1

2. MARKETING OBJECTIVE .............................................................................................................. 1

3. APPLICATIONS ............................................................................................................................... 1

4. SELLING POINTS ........................................................................................................................... 1

4-1. Selling Point Descriptions ................................................................................................................ 2

5. SPECIFICATIONS ........................................................................................................................... 6

5-1. Specifications ....................................................................................................................................6

5-2. Optional Accessories ........................................................................................................................7

6. COMPARISONS WITH SIMILAR PRODUCTS ............................................................................... 8

6-1. W 6VM ..............................................................................................................................................8

6-2. W 6V4 ...............................................................................................................................................8

6-3. W 6VA4 .............................................................................................................................................8

7. PRECAUTIONS IN SALES PROMOTION ...................................................................................... 9

7-1. Handling Instructions ........................................................................................................................9

7-2. Caution Plates .................................................................................................................................. 9

7-3. Screw Driving-depth Adjustment.......................................................................................................9

7-4. Self-drilling Screws .........................................................................................................................10

7-5. Drywall Screws ...............................................................................................................................10

7-6. Variable-speed Switch .................................................................................................................... 11

8. PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY ........................................................... 12

8-1. Disassembly ...................................................................................................................................12

8-2. Reassembly ....................................................................................................................................13

8-3. Wiring Diagrams .............................................................................................................................15

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

1. PRODUCT NAME

Hitachi Screw Driver, Models W 6VM, W 6V4 and W 6VA4

2. MARKETING OBJECTIVE

The Models W 6V4 and W 6VA4 screw drivers are upgraded versions of the current Models W 6V3 and W 6VA3,

equipped with strong aluminum gear cover and inner cover and ergonomical housing and handle cover with soft

grip. 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.

3. APPLICATIONS

Drywall screws: Fastening metal studs and drywall

Interior construction Installation of ceilings, paneling or partitions in offices, shops

supermarkets, apartment houses, schools, factories, etc.

Hex. and Teks screws: Fastening metal to metal, or metal to wood

Exterior construction Installation of siding on buildings

Installation of galvanized iron sheet or corrugated sheet roofing

Plate assembly Assembly and mounting of advertising billboards

Various other interior/exterior construction and plate assembly jobs

4. SELLING POINTS

Ergonomical design for better operation

Soft grip housing and handle cover Big switch trigger Soft protect cover on gear cover and inner cover One motion detachable locator

Robust aluminum gear cover and inner cover

Assembly of metal frames for vinyl greenhouses

Assembly and installation of automobile stamped sections

Class-top short length of grip portion 206 mm (8-1/8") C: 212 mm (8-11/32") B: 210 mm (8-1/4") P: 210 mm (8-1/4") E: 208 mm (8-3/16")

High-power motor: Class-top power input

•••

U.S.A., Canada: 750 W Other countries: 620 W C: U.S.A., Canada: 710 W Other countries: 570 W B: U.S.A., Canada: 550 W Other countries: 500 W P: U.S.A., Canada: 740 W Other countries: 540 W E: U.S.A., Canada: 740 W

Class-top low noise 76 dB (A) C: 79 dB (A) B: 78 dB (A) P: 82 dB (A) E: 80 dB (A) (Rotation direction is R.)

7.5 m (24.6 ft.) long cord (for U.S.A., Canada, Europe, Russia and Oceania)

--- 1 ---

4-1. Selling Point Descriptions

The new Models W 6VM, W 6V4 and W 6VA4 are more comfortable and easier to operate than the current

models and competitors. The outstanding selling points are as follows.

1) Short length of grip portion

The Models W 6VM, W 6V4 and W 6VA4 have a

handle that is shaped in good weight balance

according to the ergonomical design. In addition,

the length of the grip portion is shortest in the

class. The handle grip is very comfortable and it

efficiently reduces operator fatigue. Table 1

shows a comparison of the length of grip portion.

Table 1 Comparison of the length of grip portion

Maker

Model

The length of grip portion mm

HITACHI

W 6VM

206 (8-1/8")

Maker

Model

The length of grip portion mm

W 6V4

206 (8-1/8")

212 (8-11/32")

HITACHI

218 (8-19/32")

(Measuring point of the length of grip portion)

Measuring point of the length of grip portion

210 (8-1/4")

W 6V3

210 (8-1/4")212 (8-11/32")

210 (8-1/4")

Maker

Model

The length of grip portion mm

W 6VA4

206 (8-1/8")

HITACHI

218 (8-19/32")

W 6VA3

210 (8-1/4")212 (8-11/32")

208 (8-3/16")

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. Thus the grip is very comfortable and it efficiently reduces operator

fatigue.

(Range covered with elastomer)

Crosshatched portion: Covered with elastomer

--- 2 ---

Big switch trigger

A new big switch trigger is adopted for easier switch operation. The switch trigger is rounded for better feel

of triggering.

W 6V4

Soft protect cover on gear cover and inner cover

W 6V3

A transparent protect cover made of elastomer is added to cover the surfaces of the gear cover and the

inner cover made of aluminum. It is easily detachable just by removing the locator. The protect cover has

the following two features.

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 (Middle East and South-East Asia).

The protect cover is soft because it is made of elastomer. In addition, the aluminum gear cover protects

from damages even if the Models W 6VM, W 6V4 and W 6VA4 are hit against wall materials.

(Mounting the protect cover)

Locator

Protect cover

Engage the claws in the air vents of the housing to secure the protect cover.

One motion detachable locator

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.

W 6V4

Pull the lock sleeve in the arrow direction.

W 6V3

Push the lock sleeve in the gear cover.

Turn the locator.

--- 3 ---

3) Low noise

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.

Table 2 Comparison of the no-load noise level

Maker

Model

No-load noise level* dB (A)

Maker

Model

No-load noise level* dB (A)

Maker

Model

No-load noise level* dB (A)

*: Rotational direction is R.

4) Robust aluminum gear cover and inner cover

The Models W 6VM, W 6V4 and W 6VA4 have the gear cover and the inner cover made of aluminum, while

those of the current Models W 6V3 and W 6VA3 are made of resin. This is to ensure the specified durability

and strength of the Models W 6VM, W 6V4 and W 6VA4 even under the severe environment. Table 3 shows a

comparison of the material of gear cover and inner cover.

Table 3 Comparison of the material of gear cover and inner cover

Maker

Model

Material of gear cover and inner cover

HITACHI

W 6VM

W 6V4

W 6VA4

HITACHI

W 6VM

Aluminum

HITACHI

W 6V3

W 6VA3

Aluminum

Plastic

Maker

Model

Material of gear cover and inner cover

Maker

Model

Material of gear cover and inner cover

5) 7.5 m (24.6 ft.) long cord (for U.S.A., Canada, Europe, Russia and Oceania)

The 7.5 m (24.6 ft.) long cord of the Models W 6VM, W 6V4 and W 6VA4 eliminates the inconvenience of

connecting an extension cord or carrying a cord reel in the work site.

Aluminum

W 6VA4

Aluminum

W 6V4

HITACHI

W 6V3

Plastic

W 6VA3

Plastic

Aluminum

Plastic

Aluminum

--- 4 ---

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.

Table 4 Comparison of the power input

Maker

Model

Power input

Maker

Model

Power input

Maker

Model

Power input

U.S.A., Canada

Other areas

U.S.A., Canada

Other areas

U.S.A., Canada

Other areas

HITACHI

W 6VM

750 (120 V, 6.6 A)

W 6V4

750 (120 V, 6.6 A)

W 6VA4

750 (120 V, 6.6 A)

620

710 (115 V, 6.5 A)

HITACHI

680 (115 V, 6.4 A)

HITACHI

W 6VA3

680 (115 V, 6.4 A)

680 (120 V, 6.0 A)

570

W 6V3

600

540

710 (115 V, 6.5 A)

570

710 (115 V, 6.5 A)

570

550 (120 V, 4.8 A)

500

550 (120 V, 4.8 A)

500

720 (120 V, 6.3 A)

740 (120 V, 6.5 A)

--- 5 ---

5. SPECIFICATIONS

5-1. Specifications

Model

Capacity

Bit mounting size

Power source

Type of motor

Full-load current

Power input

No-load rotation

Enclosure

Drywall screw

Self-drilling screw

U.S.A., Canada

Other areas

U.S.A., Canada

Other areas

W 6VM

6.35 mm (1/4")

Single phase, AC 50 Hz or 60 Hz

Single phase, AC commutator motor

5.9 A (110 V) 2.8 A (230 V)

0 --- 6,000 /min

0 --- 4,500 /min

Housing and handle cover

Gear cover and inner cover Protect cover Locator and hook

••••••••••••••••••••••••••••••••

••••••••••••••••••••••••••

W 6V4 W 6VA4

6 mm (1/4")

6.6 A (120 V)

2.9 A (220 V)

2.7 A (240 V)

750 W

620 W

0 --- 3,000 /min

•••••••••••••

Polyamide resin and thermo

plastic elastomer

•••••••••••

Aluminum alloy

Thermo plastic elastomer Polyamide resin

Switch

Variable switch with reversing switch

Handle

Weight

Packaging*

Net Gross

Type

Cord

Overall length

Standard accessory

U.S.A., Canada, Europe, Russia, Oceania Asia, Africa and other areas

Magnetic bit holder No. 2 Phillips driver bit Sub-stopper

••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••

*1: Packaging may vary depending on the market. *2: Standard accessories may vary depending on the market.

Pistol grip handle

•••••••••••••••

•••••••••••

1.4 kg (3.1 lbs.) (without cord)

1.9 kg (4.2 lbs.)

Corrugated cardboard box

Two-core cabtire cable

•••••••••••••

••••••••••••••••••••••••••••••••••

••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••

•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••

7.5 m (24.6 ft.)

2.5 m (8.2 ft.)

1 1 1

--- 6 ---

5-2. Optional Accessories

(1) For hex-head screws

Sub-stopper (B)Hex-socket

Magnetic type

H = 6.35 mm

H = 7.94 mm H = 7.94 mm

H = 9.53 mm

H = 10 mm H = 10 mm

(2) For other screws

Screw

head

Non magnetic type

H = 6.35 mm

H = 9.53 mm

Bit type Bit holder

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

Magnetic bit holder (Short type)

Magnetic bit holder

Non-magnetic bit holder

H 1/4

H 5/16

H 3/8

Sub-stopper

Sub-stopper (G)

Sub-stopper (F)

(3) Plastic case

Optional accessories are subject to change without notice.

--- 7 ---

6. COMPARISONS WITH SIMILAR PRODUCTS

6-1. W 6VM

Maker

Model

Capacity

Power input

Drywall screw

Self-drilling screw

U.S.A., Canada

Other areas

No-load rotation

No-load noise level *

Overall length

Cord length

Weight *

with long bit holder

with short bit holder

U.S.A., Canada, Europe, Russia and Oceania

Asia, Africa and other areas

/min

dB (A)

HITACHI

W 6VM

6 (1/4")

620

0 --- 6,000

328 (12-7/8")

294 (11-19/32")

7.5 (24.6 ft.)

2.5 (8.2 ft.)

1.4 (3.1 lbs.)

710 (115 V, 6.5 A)

U.S.A.: 2.5 (8.2 ft.) Europe: 4.2 (13.8

*1: Rotation direction is R. *2: Weight excludes cord and means actual weight.

6-2. W 6V4

Maker

Model

Capacity

Power input

Drywall screw

Self-drilling screw

U.S.A., Canada

Other areas

No-load rotation

No-load noise level *

Overall length

Cord length

Weight *

with long bit holder

with short bit holder

U.S.A., Canada, Europe, Russia and Oceania

Asia, Africa and other areas

750 (120 V, 6.6 A)

/min

dB (A)

mm mm

0 --- 4,500

328 (12-7/8")

294 (11-19/32")

7.5 (24.6 ft.)

2.5 (8.2 ft.)

1.4 (3.1 lbs.) 1.3 (2.9 lbs.) 1.4 (3.2 lbs.)

HITACHI

W 6V4

6 (1/4")

680 (115 V, 6.4 A)

620

268 (10-19/32")

*1: Rotation direction is R. *2: Weight excludes cord and means actual weight. *3: U.S.A. only. Europe, Russia and Oceania are 2.5 m.

5 (3/16")

6 (1/4")

570

0 --- 6,000

302 (11-7/8")

4 (5/32")

---

680 (120 V, 6.0 A)750 (120 V, 6.6 A)

540

0 --- 5,300

310 (12-13/64")

U.S.A.: 2.5 (8.2 ft.)

ft.)

Europe: 4.2 (13.8

1.4 (3.2 lbs.) 1.4 (3.2 lbs.)

W 6V3

6 (1/4")

600

0 --- 4,000

302 (11-7/8")

7.5 (24.6 ft.)

2.5 (8.2 ft.)

5 (3/16")

6 (1/4")

710 (115 V, 6.5 A)

570

0 --- 4.500

302 (11-7/8")

U.S.A.: 2.5 (8.2 ft.)

Europe: 4.2 (13.8 ft.)

ft.)

6 (1/4")

---

500

0 --- 4,000

4 (5/32")

---

720 (120 V, 6.3 A)550 (120 V, 4.8 A)

---

0 --- 4,000

310 (12-13/64") 312 (12-9/32")

2.5 (8.2 ft.)

1.5 (3.3 lbs.) 1.4 (3.2 lbs.)

6-3. W 6VA4

Maker

Model

Capacity

Power input

Drywall screw

Self-drilling screw

U.S.A., Canada

Other areas

No-load rotation

No-load noise level *

Overall length

Cord length

Weight *

with long bit holder

with short bit holder

U.S.A., Canada, Europe, Russia and Oceania

Asia, Africa and other areas

/min

dB (A)

W 6VA4

6 (1/4")

750 (120 V, 6.6 A)

620

0 --- 3,000

328 (12-7/8")

294 (11-19/32")

7.5 (24.6 ft.)

2.5 (8.2 ft.)

1.4 (3.1 lbs.) 1.3 (2.9 lbs.) 1.5 (3.3 lbs.)

*1: Rotation direction is R. *2: Weight excludes cord and means actual weight.

HITACHI

W 6VA3

680 (115 V, 6.5 A)

0 --- 2,600

302 (11-7/8")

268 (10-19/32")

2.5 (8.2 ft.)

--- 8 ---

6 (1/4")

600

5 (3/16")

6 (1/4")

710 (115 V, 6.5 A)

570

0 --- 2,500

302 (11-7/8")

U.S.A.: 2.5 (8.2 ft.)

Europe: 4.2 m (13.8

6 (1/4")

---

740 (120 V, 6.5 A)550 (120 V, 4.8 A)

500

0 --- 2,500

320 (12-19/32")

2.5 (8.2 ft.)

ft.)

335 (13-13/64")

3.0 (9.8 ft.)

1.6 (3.5 lbs.) 1.4 (3.2 lbs.)

---

+ 24 hidden pages

HITACHI W 6VM, W 6V4, W 6VA4 User Manual

CONTENTS

1. PRODUCT NAME

2. MARKETING OBJECTIVE

3. APPLICATIONS

4. SELLING POINTS

4-1. Selling Point Descriptions

5. SPECIFICATIONS

5-1. Specifications

5-2. Optional Accessories

6. COMPARISONS WITH SIMILAR PRODUCTS

6-1. W 6VM

6-2. W 6V4

6-3. W 6VA4