Item

No.

(Sring-O39-8)

Reciprocating40 Bearing

Collar41

Ring-V42

Washer43

GearFirst44

Washer45(B)D12.5

Change46Lever

(H)Spring47

BallSteel48D3.97

Ring-O49(S-14)

Retaining50RingForD14Shaft

Plate51

Rubber52Holder

Switch53

Internal54Wire

Internal55Wire

HITACHI56Label

Carbon57Brush

Tapping58Screw D310

HolderBrush59 (L)

HolderBrush60 (R)

LeverSlide61

Spring62

Rubber63Seal(A)

Rubber64Seal(B)

Tapping65Screw D410

Terminal66

Terminal67Piece

Terminal68

Pushing69Button

Battery70EB24B

HandleSide501

GaugeDepth502

Charger503(ModelUC24YF)

Case504

subjectareParts to possible modificationwithout notice dueto improvements.

 

 

NamePart

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PartName

FrontCap

Grip

BallHolder

HolderSpring

RetainingRing

OilSeal

RetainingRingForD20Shaft

BallBearing(6904CM)

SteelBallD7.0

SteelBallD5.556

Cylinder

SecondGear

Spring(A)

Washer(A)

RetainingRingForD30Shaft

SecondHammer

O-Ring(B)

O-Ring(D)

Striker

O-Ring(A)

Piston

Piston

Washer(C)

Metal

Pinion

Sleeve

Felt

ArmatureD.C24V

Magnet

Washer(B)D19

Housing(A).(B)Set

TappingScrew D414 TappingScrew(W/Flange)

D420 Nameplate

BallBearing (626VVMC2ERPS2S)

SecondPinion

ClutchSpring

Clutch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

center.

Item

No.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28A

29

30

31

32

33

34

35

36

37

38

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Theexplodedassemblydrawingshouldbeusedonlyforauthorizedservice

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

40

Page 41
Image 41
Hitachi Koki USA DH 20DV manual NamePart

DH 20DV specifications

The Hitachi Koki USA DH 20DV is a powerful and versatile rotary hammer drill that caters to both professionals and DIY enthusiasts. Engineered for tough applications, this tool stands out for its combination of performance, durability, and advanced technology. Weighing in at just under 6.4 pounds, the DH 20DV strikes a balance between portability and power, making it easy to handle without compromising on performance.

One of the most notable features of the DH 20DV is its 2-mode operation, which allows users to switch between rotary hammer and hammer-only modes. This versatility makes it suitable for a wide range of tasks, from drilling into concrete and masonry to chipping away at tough materials. The powerful 7.0-amp motor delivers impressive impact energy to help users tackle even the most challenging projects with ease.

The ergonomic design of the DH 20DV ensures comfort during extended use. The integrated soft-grip handle provides added control, reducing user fatigue. Additionally, the 360-degree rotatable auxiliary handle enhances stability for precise drilling, allowing users to adjust the grip based on the specific job at hand.

Another key characteristic of this model is its variable speed control. With speeds reaching up to 1,100 RPM, users can easily adjust the drill to suit different applications. This feature, combined with a high-impact rate of 4,000 BPM, enables the DH 20DV to efficiently handle various materials, making it a valuable tool for electricians, plumbers, and general contractors.

The DH 20DV is also equipped with anti-vibration technology, minimizing vibrations during operation. This not only enhances user comfort but also improves accuracy, providing cleaner, more precise holes. The durable construction of the tool ensures longevity, with components built to withstand the rigors of tough job site conditions.

In summary, the Hitachi Koki USA DH 20DV is a robust and efficient rotary hammer drill engineered for performance and ease of use. With its dual-mode operation, powerful motor, ergonomic design, and advanced features, it stands as a reliable choice for professionals. Whether you're drilling into concrete or chipping away at tough materials, the DH 20DV is designed to meet your needs with exceptional reliability and power.