Hitachi DH38MS Manuale

PRODUCT NAME

Hitachi Rotary Hammer

Model DH 38MS

The new Model DH 38MS is capable of drilling holes of up to 38 mm in diameter into concrete and is compatible

with SDS max shank tools.

LIST No.

DH 38MS: H402

May 2009

xDrilling holes in concrete and drilling anchor holes.

xDemolishing and chiseling concrete. Edging, gravel road digging, compacting and tamping, grooving, cutting,

stripping and roughing, etc.

MARKETING OBJECTIVE

APPLICATIONS

SELLING POINTS

International Sales Division

Fastest drilling speed and best chiseling

performance in its class

Functional and robust design

Easy-to-operate with a double-molded side handle

Variable lock mechanism for easy working-angle

adjustment of chisels, etc.

Needle-pin type of slip clutch

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.

REMARKS:

For more information about HANDLING INSTRUCTIONS, visit our website at:

http://www.hitachi-koki.com/manual_view_export/

This TECHNICAL DATA AND SERVICE MANUAL utilizes a symbol to denote the company name and

model name of our competitor. The symbol utilized herein is as follows:

Competitors

Symbol utilized Company name Model name

B BOSCH GBH5-38D

CONTENTS

Page

SELLING POINTS ------------------------------------------------------------------------------------------------------------- 1

SPECIFICATIONS ------------------------------------------------------------------------------------------------------------- 3

1. Specifications----------------------------------------------------------------------------------------------------- 3

2. Optional Accessories ------------------------------------------------------------------------------------------- 4

COMPARISON WITH SIMILAR PRODUCTS--------------------------------------------------------------------------- 8

1. Comparison of Specifications------------------------------------------------------------------------------------------------------- 8

PRECAUTIONS ON SALES PROMOTION ----------------------------------------------------------------------------- 9

1. Safety Instructions ---------------------------------------------------------------------------------------------- 9

REFERENCE MATERIALS-------------------------------------------------------------------------------------------------10

REPAIR GUIDE---------------------------------------------------------------------------------------------------------------- 11

1. Precautions on Disassembly and Reassembly --------------------------------------------------------- 11

STANDARD REPAIR TIME (UNIT) SCHEDULES--------------------------------------------------------------------17

Assembly Diagram for DH 38MS

-1-

Comparison of chiseling performance

Chiseling amount (kg/30 min.)

100

150

200

250

300

16 18 20 22 24 26 28 30 32 34 36 38

Drill Bit Dia. (mm)

Drilling Speed (mm/min)

HITACHI DH38MS

HITACHI DH40MR

0 20406080100

Fastest drilling speed and best chiseling performance in its class*

We conducted digital engineering to determine the optimal impact specifications. As a result, the Models

DH 38MS offers the fastest drilling speed and best chiseling performance in its class.

*Based on our own research

Comparison of drilling speed

Chiseling performance varies considerably depending on the work conditions.

Use the factory test results for comparison purposes only.

HITACHI

DH 38MS

HITACHI

DH 40MR

Direction: Downward drilling

Pushing force: 98 N (10 kgf)

Test material: Concrete panel with a compression strength of 2,352 N/cm2(240 kgf/cm2)

SELLING POINTS

-2-

Refer to the Technical Data and Service Manual of the current Model DH 40MR for the following.

Easy-to-operate and double-molded side handle

The base material of the side handle is plastic resin. The plastic resin base is integrally molded with soft

resin to realize a double-layer structure. As a result, the grip of the soft side handle affords easier operation.

Change lever for switching between “Rotation + Hammering,”

“Neutral” and “Hammering only”

The Models DH 38MS provides three functions; the

“rotation + hammering” function (for drilling), “neutral”

function (for positioning the tool tip) and “hammering

only” function (for chiseling and chipping).

These function modes can be easily switched by

using the change lever. The tool angle can be easily

changed in 12 steps by turning the grip with the

change lever positioned at “Neutral.”

Needle-pin type of slip clutch

The Model DH 38MS is equipped with a needle-pin type of slip clutch for higher slip torque accuracy and

enhanced safety (same as the Model DH 40MR).

DH 40MR / List No. E467

-3-

1. Specifications

Model

DH 38MS

Drill bit (max. dia.): 38 (1-31/64”)

Capacity mm Core bit (max. dia.): 105 (4-9/64”)

Voltage V 110 120 220 230 240

Current A 9.1 8.4 4.6 4.4 4.2

Power input W 950

Enclosure

Materials : Aluminum alloy die casting

(Cylinder case, crank case, gear cover)

Nylonresin

(Handle, handle cover, tail cover, crank cover)

Polycarbonateresin

(Housing)

Paint : Green, black, silver metallic green

Switch

Trigger switch

Type of handles

D-shaped handle and side handle

No load rotation rate min-1 620

Full load impact rate min-1 2,800

Packaging

Plastic case

Product*6.4 (14.1)

Weight Packed kg (lbs.) 9.5 (20.9)

Standard accessories

Plastic case ------------------------------------------------------ 1

Side handle ------------------------------------------------------ 1

*:Excluding cord and side handle

SPECIFICATIONS

-4-

2. Optional Accessories

(1) Drilling work for through-hole drilling (rotation + impact)

D mm L mm Code No. D mm L mm Code No.

16 (5/8”) 340 (13-3/8”) 313448 16 (5/8”) 540 (21-1/4”) 313456

19 (3/4”) 340 (13-3/8”) 313449 19 (3/4”) 540 (21-1/4”) 313457

22 (7/8”) 320 (12-5/8”) 313450 22 (7/8”) 520 (20-15/32”) 313458

25 (1”) 320 (12-5/8”) 313451 25 (1”) 520 (20-15/32”) 313459

28 (1-1/8”) 370 (14-9/16”) 313452 28 (1-1/8”) 570 (22-7/16”) 313460

32 (1-1/4”) 370 (14-9/16”) 313453 32 (1-1/4”) 570 (22-7/16”) 313461

38 (1-1/2”) 370 (14-9/16”) 313454 38 (1-1/2”) 570 (22-7/16”) 313462

(2) Drilling work for anchor holes (rotation + hammering)

Drill bit (taper shank)

(1) Drill bit (taper shank) (2) Taper shank adapter (3) Cotter

D mm L mm Code No. Taper dimension Code No. Code No.

11.0 (7/16”) 100 (4”) 944460

12.3 (15/32”) 110 (4-5/16”) 944461

14.3 (9/16”) 110 (4-5/16”) 944462 Morse taper No. 1 313464 944477

14.5 (9/16”) 110 (4-5/16”) 944500

17.5 (11/16”) 120 (4-3/4”) 944463

SDS-plus shank bit adapter

Code No.

313465

Drill bit (SDS max shank)

(1) Drill bit (taper shank) (2) Taper shank adapter

(SDSmaxshank)

(3) Cotter

Drill bit (SDS-plus shank) SDS-plus shank

bit adapter

(SDS max shank)

-5-

(3) Boring work for large-diameter holes (rotation + hammering)

(2) Core bit (1) Center pin (3) Core bit shank (SDS max)

D mm Code No. Guide plate l mm Code No. L mm Code No.

25 (1”) 955994

29 (1-1/8”) 955995

---

32 (1-1/4”) 955996

35 (1-3/8”) 955998

300 (11-13/16”) 313466

38 (1-1/2”) 956000

147 (5-25/32”) 956009

45 (1-3/4”) 955154

54 (2-1/8”) 955155

64 (2-1/2”) 956002

79 (3-1/8”) 955157

94 (3-11/16”) 956004

105 (4-1/8”) 955159

133 (5-1/4”) 955165 300 (11-13/16”) 313467

(4) Hole drilling

13-mm drill chuck (13VLD-D) with chuck wrench Chuck adapter

Code No. Code No.

321813 313468

(5) Chemical anchor holes drilling work (rotation + hammering)

Socket square size mm Code No.

12.7 (1/2”) 313469

19.0 (3/4”) 313470

Chuck adapter

(SDS max shank)

(1) Center pin (2) Core bit

+++

(Guide plate)

13mm drill chuck

(13VLD-D)

(3) Core bit shank

(SDS max shank)

Chuck wrench

(Socket) Chemical anchor adapter

(SDS max shank)

-6-

(6) Demolishing work (hammering)

Bull point (SDS max shank)

L mm Code No.

280 (11”) 313471

450 (15-3/4”) 313472

(7) Groove digging and edging (hammering)

Cold chisel (SDS max shank)

L mm Code No.

280 (11”) 313473

450 (15-3/4”) 313474

(8) Cutting and stripping (cutting asphalt etc.) (hammering)

Cutter (SDS max shank)

L mm Width mm Code No.

400 (15-3/4”) 50 (2”) 313475

(9) Scooping work (hammering)

Scoop (SDS max shank)

L mm Code No.

400 (15-3/4”) 313476

(10) Surface roughing work (hammering)

Code No. L mm Code No.

313477 220 (8-21/32”) 313479

Bushing tool Shank (SDS max shank)

-7-

(11) Tamping work (hammering)

L mm Code No. l mm Code No.

150 (5-29/32”) 313478 220 (8-21/32”) 313479

(12) Syringe (for chip removal)

Syringe Code No.

Bellows 318085

Blow-out bulb 320859

(13) Grease

Code No. Code No.

980927 981840

NOTE:

The code numbers listed above are subject to change without notice.

Please refer to periodic Technical News Bulletins for updates

500

1.1 lbs.

)

can 30 g (1 oz) tube

Rammer Shank (SDS max shank)

Bellows Blow-out bulb

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