HiKOKI DH38SS - Rotary hammer

DH38SS - Rotary hammer HiKOKI - Free user manual and instructions

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Product Type Rotary Hammer
Brand HiKOKI
Model DH38SS
Power Input 950 W
Voltage 220 V ~
No Load Speed 620 /min
Full-Load Impact Rate 2800 /min
Drill Capacity (Concrete) 38 mm
Core Bit Capacity 105 mm
Weight (without cord, side handle) 6.4 kg
Side Handle Included
Carrying Case Included (Molded plastic)
Safety Clutch Built-in
Vibration Control Side handle for better grip
Operating Modes Rotation + Hammering, Hammering only
Recommended Lubricant HiKOKI Electric Hammer Grease A
Grease Replacement Interval Every 6 months
Carbon Brush Type Auto-stop type (replace when worn)
Tool Shank Type Hexagonal (for bits and bull points)
Optional Accessories Drill bits, core bits, chisels, anchor adapter, taper shank adapter, etc.

Frequently Asked Questions - DH38SS HiKOKI

How do I install a tool bit in the DH38SS rotary hammer?
First, clean and grease the tool shank. Press the push button, lift the tool retainer, and hook its edge onto the button. Insert the tool shank fully into the hexagonal hole, then release the retainer to secure. Pull the tool to verify it is locked.
What should I do if the push button does not operate smoothly?
Remove dirt from the outlet using a wire, then apply lubricating oil and press the button several times until it moves freely.
How do I perform warming up in cold conditions?
Position the bit tip against concrete, turn on the switch, and let the tool run until you hear a hitting sound. Hold the side handle and main body securely to avoid twisting.
What is the correct drilling technique for concrete?
Apply the drill bit tip to the drilling position, then pull the switch trigger. Do not apply excessive force; let the tool do the work. Use the side handle for control.
How do I use the self-drilling anchor adapter?
Install the self-drilling anchor into the adapter. Drill a base hole with the rotary hammer, clean dust with a syringe, attach a plug, and drive the anchor with a manual hammer. Then use the drift key to separate the anchor.
How do I mount and use a core bit?
Mount the core bit onto the core bit shank (oil the screw for easy removal). Attach the shank to the rotary hammer. Insert a center pin into the guide plate and fit it to the core bit tip. Gently press against the surface until the hole depth reaches about 5 mm, then remove the center pin and guide plate.
How do I replace the grease?
Every 6 months, remove the crank cover, wipe off old grease, and supply 30 g of HiKOKI Electric Hammer Grease A (low viscosity type) into the crank case. Reinstall the cover securely.
When should I replace the carbon brushes?
Check carbon brushes regularly. If they are worn to the wear limit or the motor stops automatically (auto-stop type), replace both brushes with same part numbers. Loosen the tail cover screws, remove brush caps and brushes, then install new ones.
What safety precautions should I take when using this rotary hammer?
Always wear ear protectors and a dust mask. Use the side handle. Hold the tool by insulated gripping surfaces to avoid electric shock if cutting into hidden wiring. Do not touch the bit immediately after use as it becomes very hot.
How do I maintain the motor and power cord?
Keep the motor winding dry and free of oil/water. If the power cord needs replacement, use heavy polychloroprene sheathed cable 245IEC66 (YCW) or equivalent. Have repairs done by an authorized HiKOKI service center.

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USER MANUAL DH38SS HiKOKI

natural_image Line drawing of a drill bit with a circular outline (no text or symbols)

保留备用

Keep for future reference

HiKOKI DH38SS - 1

使用说明书

Handling instructions

HiKOKI DH38SS - 2

目次

电动工具通用安全警告 2

电锤使用安全警告....4

符号....4

规格....5

标准附件....5

选购附件(分开销售)....5

用途....7

作业之前....7

当按钮没有顺畅动作时....8

使用手提电锤的方法....8

使用自钻锚栓进行钻孔和打入作业……9

操作取心钻具的方法....10

更换润滑油....11

维护和检查....11

维修零部件一览表....13

电动工具通用安全警告

警告!

阅读所有警告和所有说明。

W1/4 (No. 20), W5/16 (No. 25), W3/8 (No. 30),

W1/2 (No. 40), W5/8 (No. 50)

HiKOKI DH38SS - 警告! - 1
(2) 扳键

○ 破碎 (锤击)

HiKOKI DH38SS - 警告! - 2

(1) 尖凿

总长:280,400 mm

○ 开槽和饰边(锤击)

HiKOKI DH38SS - 警告! - 3

(1) 冷钻

总长:280,450 mm

○ 切柏油(锤击)

HiKOKI DH38SS - 警告! - 4

(1) 刀具

○ 电动锤润滑油 A

500g (在油罐内)

70g (在管内)

30g (在管内)

○ 喷射器(用于清除切层)

HiKOKI DH38SS - 警告! - 5

natural_image Two types of laboratory test tubes: a pointed bulb and a coiled spring (no text or labels)

用途

natural_image Line drawing of a tool being dispensed into a cylindrical component (no text or symbols)

工具柄
图1

夹持器边缘
HiKOKI DH38SS - 用途 - 1

natural_image Illustration of two hands using a drill bit presser to lift a screwdriver (no text or symbols present)

图5 图6

注意!

natural_image Line drawing of a manual drill bit with a threaded shaft (no text or symbols)

图 16

取心钻柄 取心钻具

图 17

更换润滑油

中文

项目号代码号使用数备注
13312411
23312431
39916972 D4×20
49819424 M6×25
53312381
63195721 S-25
73312441
83312422
99901342
103312401
113312391
123312371
139917124 M6×25
149569961 1AS-60
153218431
163312361
173312221
183133961
193312231
203312241
213218351
223312251
233312271
243218321
253312281
263312261
273312322
283312301
293312291
303312311
313312331
323312341
333312351
349861042
353312211
363263691
373212851
386201DD16201DDCMPS2L
393250031
40360875E1 220V-230V
413312521
项目号代码号使用数备注
429531742 D5×55
43340753E1 220V-230V“44”
449307032
453312511 “86, 87”
463312101 “47-49, 51-59”
473312111
489441092 3×3×8
493312121
503130501
516002DD16002DDCMPS2L
523312131
533312141
543212811
5533121810
5633121710
573312151
583312191
59629VVM1 629VVC2PS2L
603312201
619928032 M6×20
629869404 M6×45
63——2
649941926 M5×16
653312451
668787131
673312071
683315491
699395401
703312081
719483911
726203DD16203DDCMPS2L
739963631 S-40
743212741
753312091
769392991 M661
773312531
783079471 M6×12
793312481
809495561 M6
813312471
823312461

项目号 代码号 使用数 备注

83 330209 1
84 945161 2
85 999043 2
86 958900 2
87 938477 2 M5×8
88 982631 1
89 608VVM 1 608VVC2PS2L
90 331254 1
91 331202 1
92 302089 4 D5×20
93 331203 1
94 331204 1
95 330216 1 270L
96 959141 1
97 ——1
98 500457Z 1
99 940778 1 D10.7
100 981974 1
101 313093 1
102 938307 1
103 959141 1
104 960266 1
105 984750 2 D4×16
106 331205 1
107 307028 2 D4×25
108 331547 1
501 331206 1

CONTENTS

GENERAL POWER TOOL SAFETY WARNINGS ....16

ROTARY HAMMER SAFETY WARNINGS ....18

SYMBOL....19

SPECIFICATIONS....19

STANDARD ACCESSORIES 19

OPTIONAL ACCESSORIES (sold separately)....20

APPLICATIONS....21

HOW TO HANDLE A CORE BIT ....25

HOW TO REPLACE GREASE 26

MAINTENANCE AND INSPECTION 26

SERVICE PARTS LIST 28

GENERAL POWER TOOL SAFETY WARNINGS

HiKOKI DH38SS - GENERAL POWER TOOL SAFETY WARNINGS - 1

WARNING

Read all safety warnings and all instructions.

Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.

Save all warnings and instructions for future reference.

The term “power tool” in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.

1) Work area safety

a) Keep work area clean and well lit.

Cluttered or dark areas invite accidents.

b) Do not operate power tools in explosive atmospheres, such as in the presence of fl ammable liquids, gases or dust.

Power tools create sparks which may ignite the dust or fumes.

c) Keep children and bystanders away while operating a power tool.

Distractions can cause you to lose control.

2) Electrical safety

a) Power tool plugs must match the outlet.

Never modify the plug in any way.

Do not use any adapter plugs with earthed (grounded) power tools.

Unmodified plugs and matching outlets will reduce risk of electric shock.

b) Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and refrigerators.

There is an increased risk of electric shock if your body is earthed or grounded.

c) Do not expose power tools to rain or wet conditions.

Water entering a power tool will increase the risk of electric shock.

d) Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool.

Keep cord away from heat, oil, sharp edges or moving parts.

Damaged or entangled cords increase the risk of electric shock.

e) When operating a power tool outdoors, use an extension cord suitable for outdoor use.

Use of a cord suitable for outdoor use reduces the risk of electric shock.

f) If operating a power tool in a damp location is unavoidable, use a residual current device (RCD) protected supply.

Use of an RCD reduces the risk of electric shock.

3) Personal safety

a) Stay alert, watch what you are doing and use common sense when operating a power tool.

Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication.

A moment of inattention while operating power tools may result in serious personal injury.

b) Use personal protective equipment. Always wear eye protection.

Protective equipment such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.

c) Prevent unintentional starting. Ensure the switch is in the off position before connecting to power source and/or battery pack, picking up or carrying the tool.

Carrying power tools with your finger on the switch or energising power tools that have the switch on invites accidents.

d) Remove any adjusting key or wrench before turning the power tool on.

A wrench or a key left attached to a rotating part of the power tool may result in personal injury.

e) Do not overreach. Keep proper footing and balance at all times.

This enables better control of the power tool in unexpected situations.

f) Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing and gloves away from moving parts.

Loose clothes, jewellery or long hair can be caught in moving parts.

g) If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used.

Use of dust collection can reduce dust-related hazards.

4) Power tool use and care

a) Do not force the power tool. Use the correct power tool for your application.

The correct power tool will do the job better and safer at the rate for which it was designed.

English

b) Do not use the power tool if the switch does not turn it on and off.

Any power tool that cannot be controlled with the switch is dangerous and must be repaired.

c) Disconnect the plug from the power source and/or the battery pack from the power tool before making any adjustments, changing accessories, or storing power tools.

Such preventive safety measures reduce the risk of starting the power tool accidentally.

d) Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool.

Power tools are dangerous in the hands of untrained users.

e) Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power tool's operation.

If damaged, have the power tool repaired before use.

Many accidents are caused by poorly maintained power tools.

f) Keep cutting tools sharp and clean.

Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.

g) Use the power tool, accessories and tool bits etc. in accordance with these instructions, taking into account the working conditions and the work to be performed.

Use of the power tool for operations different from those intended could result in a hazardous situation.

5) Service

a) Have your power tool serviced by a qualified repair person using only identical replacement parts.

This will ensure that the safety of the power tool is maintained.

CAUTION

Keep children and infi rm persons away.

When not in use, tools should be stored out of reach of children and infirm persons.

ROTARY HAMMER SAFETY WARNINGS

  1. Wear ear protectors

Exposure to noise can cause hearing loss.

  1. Use auxiliary handles supplied with the tool.

Loss of control can cause personal injury.

  1. Hold power tool by insulated gripping surfaces, when performing an operation where the cutting accessory may contact hidden wiring or its own cord. Cutting accessory contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.

  2. Do not touch the bit during or immediately after operation. The bit becomes very hot during operation and could cause serious burns.

  3. Before starting to break, chip or drill into a wall, floor or ceiling, thoroughly confirm that such items as electric cables or conduits are not buried inside.

  4. Always hold the body handle and side handle of the power tool firmly. Otherwise the counterforce produced may result in inaccurate and even dangerous operation.
  5. Wear a dust mask

Do not inhale the harmful dusts generated in drilling or chiseling operation. The dust can endanger the health of yourself and bystanders.

SYMBOL

WARNING

The following show symbols used for the machine. Be sure that you understand their meaning before use.

HiKOKI DH38SS - WARNING - 1

To reduce the risk of injury, user must read instruction manual.

SPECIFICATIONS

Voltage 220 V~
Power input 950 W
CapacityDrill bit: 38 mmCore bit: 105 mm
No load speed 620 /min
Full-load impact rate 2800 /min
Weight (without cord, side handle) 6.4 kg

STANDARD ACCESSORIES

In addition to the main unit (1 unit), the package contains the accessories listed in the below.

Case (Molded plastic)HiKOKI DH38SS - STANDARD ACCESSORIES - 11
Side HandleHiKOKI DH38SS - STANDARD ACCESSORIES - 21

OPTIONAL ACCESSORIES (sold separately)

○ Through-hole drilling (Rotation + Hammering)

HiKOKI DH38SS - OPTIONAL ACCESSORIES (sold separately) - 1

(1) Drill bit (hexagon shank)

Overall length: 280, 400, 505 mm

External dia.: 16, 19, 22, 25, 28, 32, 38 mm

○ Anchor hole drilling (Rotation + Hammering)

(3) Cotter + +

(1) Drill bit (taper shank)

External dia.: 11, 12, 14.3, 14.5, 17.5, 21.5 mm

(2) Taper shank adapter

Taper shank adapter Application drill bit
Morse taper (No. 1) Drill bit(taper shank) 11, 12, 14.3, 14.5, 17.5 mm
Morse taper (No. 2) Drill bit(tape shank) 21.5 mm
A-taperTaper shank adapter formed A-taper or B-taper is provided as optional accessory, but drill bit for it is not provided.
B-taper

○ Large dia. hole boring (Rotation + Hammering)

HiKOKI DH38SS - OPTIONAL ACCESSORIES (sold separately) - 3

natural_image Five different types of screwdrivers and end caps shown in line drawings (no text or symbols)

(2) Core bit (3) Core bit shank(Guide plate)(1) Center pin

(1) Center pin

● Applied to core bits from 38 mm to 105 mm
● Applied to core bits 32 mm and 35 mm

NOTE

Do not use core bits 25 mm or 29 mm.

(2) Core bit

● External dia. 25, 29, 32, 35, 38, 45, 54, 64, 79, 94, 105 mm

(with guide plate, not applicable to cores 25 mm or 29 mm)

(3) Core bit shank

● Applied to core bits above 38 mm
● Applied to core bits below 35 mm

○ Anchor work (for self-anchors)

HiKOKI DH38SS - NOTE - 1

(1) Anchor adapter (for Rotation + Hammering)

Anchor size:

W1/4 (No. 20), W5/16 (No. 25), W3/8 (No. 30),

W1/2 (No. 40), W5/8 (No. 50)

HiKOKI DH38SS - NOTE - 2
(2) Drift key

○ Crushing (Hammering)

HiKOKI DH38SS - NOTE - 3

(1) Bull point

Overall length: 280, 400 mm

○ Asphalt cutting (Hammering)

HiKOKI DH38SS - NOTE - 4
(1)
Cutter

○ Hammer grease A

500 g (in a can)

70 g (in a green tube)

30 g (in a green tube)

○ Groove digging and edging (Hammering)

HiKOKI DH38SS - NOTE - 5

(1) Cold chisel

Overall length: 280, 450 mm

○ Syringe (for chip removal)

HiKOKI DH38SS - NOTE - 6

natural_image Two types of medical or laboratory instruments: a pipette and a coiled spring, shown without any text or symbols.

APPLICATIONS

○ Drilling holes in concrete
○ Drilling anchor holes
○ Demolishing concrete, chipping, digging, and squaring (by applying optional accessories)

PRIOR TO OPERATION

  1. Power source

Ensure that the power source to be utilized conforms to the power requirements specified on the product nameplate.

  1. Power switch

Ensure that the power switch is in the OFF position. If the plug is connected to a power receptacle while the power switch is in the ON position, the power tool will start operating immediately, which could cause a serious accident.

  1. Extension cord

When the work area is removed from the power source, use an extension cord of sufficient thickness and rated capacity. The extension cord should be kept as short as practicable.

English

4. How to install tool

NOTE

For tools such as a bull point and a cold chisel, use only Hitachi genuine parts.

(1) Clean, then smear the tool shank with the grease or machine oil (Fig. 1).
(2) Press the push button, slightly lift the tool retainer in the direction of arrow Ⓐ as shown in Fig. 2 to hook the tool retainer edge with the push button and engage the push button.
(3) Release your finger from the push button and further lift the tool retainer in the direction of arrow Ⓐ.

NOTE

First time when the tool retainer is lifted, remove your finger from the push button. If the push button is kept pressed, the edge of the tool retainer comes in contact with your finger and the tool retainer cannot be lifted.

(4) Fully insert the tool shank into the hexagonal hole in the front cover.

(5) Return the tool retainer to secure the tool.

(6) Pull the tool to make sure it is locked completely.

NOTE

Remove in the reverse order of installation.

Grease or machine oil
HiKOKI DH38SS - NOTE - 1

natural_image Diagram showing a bottle pouring liquid into a tool, with no visible text or symbols

Tool shank

Fig. 1
Retainer edge Retainer (tool holer) Push button Tool shank Front cover

Fig. 2

WHEN THE PUSH BUTTON DOES NOT OPERATE SMOOTHLY

When the push button does not operate smoothly, please remove dirt from the inside through the outlet using a wire, etc. Then lubricate lubricating oil and push the push button several times to make it operate smoothly. (Fig. 3)

Outlet Push button Front cover Retainer (tool holer)

Fig. 3

HOW TO USE THE ROTARY HAMMER

NOTE

Ensure that the wing bolt in the side handle is properly tightened before using the tool.

  1. How to drill holes (Fig. 4)

(1) Pull the switch trigger after applying the drill bit tip to the drilling position.
(2) It is unnecessary to forcibly press the rotary hammer main body. It is sufficient to slightly press the rotary hammer to an extent that shavings are freely discharged.

Side handle
HiKOKI DH38SS - NOTE - 1

natural_image Line drawing of a hand operating a drill bit with a drill bit being inserted (no text or symbols present)

Fig. 4

CAUTION

Although this machine is equipped with a safety clutch, if the drill bit becomes bound in concrete or other material, the resultant stoppage of the drill bit could cause the machine body to turn in reaction. Ensure that the main handle and side handle are gripped firmly during operation.

  1. How to chisel or demolish (Fig. 5)

By applying the drill bit tip to the chiseling or demolishing position, operate the rotary hammer by utilizing its empty weight.

Forcible pressing or thrusting is unnecessary.

  1. Warming up (Fig. 6)

The grease lubrication system in this unit may require warming up in cold regions.
Position the end of the bit so makes contact with the concrete, turn on the switch and perform the warming up operation. Make sure that a hitting sound is produced and then use the unit.

HiKOKI DH38SS - CAUTION - 1

natural_image Illustration of two hands using a drill bit to measure a drill bit (no text or symbols present)

Fig. 5 Fig. 6

CAUTION

When the warming up operation is performed, hold the side handle and the main body securely with both hands to maintain a secure grip and be careful not to twist your body by the jammed drill bit.

DRILLING AND DRIVING-IN OPERATIONS FOR ANCHORS

Use the optional accessories for anchors, such as anchor adapter and taper shank adapter.

  1. When a rotation hammering anchor adapter is used.
    (1) Install the self-drilling anchor in the anchor adapter (Fig. 7).

Plug

Snap off this portion after driving in the self-drilling anchor.

Fig. 7

English

(2) Turn ON the switch and drill a base hole with the self-drilling anchor. (Fig. 8)
At the start of the hole-drilling slightly tilt the rotary hammer to determine the hole position.
(3) After cleaning out dust with a syringe, attach the plug to the anchor tip and drive in the anchor with a manual hammer.
(4) After driving in the anchor, use the drift key to separate the anchor. (Fig. 9)
(5) By employing a manual hammer or pliers, snap off the tapered portion of the anchor. (Fig. 10)

CAUTION

Since the snapped-off tapered portion will fly about, pay attention to the snapping direction.

  1. When a taper shank adapter is used. (Fig. 11)

(1) Install drill bit with taper shank in the taper shank adapter.
(2) Turn the power on and drill a base hole to the depth sounded by indicating groove on the drill bit.
(3) After cleaning out dust with a syringe, attach the plug to the anchor tip and drive in the anchor with a manual hammer.
(4) To remove the drill bit (taper shank), insert the cotter into the slot of the taper shank adapter and strike the head of the cotter with a manual hammer supporting on a rest. (Fig. 12)

Hole depth

Fig. 8

Drift key Wrench out

Fig. 9

HiKOKI DH38SS - CAUTION - 3

natural_image Illustration of a hand using a tool to dig or press over a surface with dots (no text or symbols)

Fig. 10

Indicating groove shows standard depth matching the outside diameter of the anchor for drilling. Taper shank adapter Drill bit (taper shank)

Fig. 11

Taper shank adapter Cotter Rest

Fig. 12

HOW TO HANDLE A CORE BIT

When a core bit is used, large diameter holes and blind holes can be drilled. In this case, use optional accessories for core bits (such as a center pin and core bit shank) for more efficient operation.

1. Mounting

CAUTION

Prior to mounting a core bit, always disconnect the plug from the power supply receptacle.

(1) Mount the core bit on the core bit shank. (Fig. 13) Before that, feed oil to the screw portion of core bit shank for easy dismounting.
(2) Mount the core bit shank on the main body in the same manner as in mounting the drill bit and the bull point. (Fig. 14)
(3) Insert the center pin into the guide plate until it reaches the extremity.
(4) Fit in the guide plate by aligning its concaved portion with the core bit tip. When the position of the concave is shifted by turning the guide plate right or left, the guide plate never slips off even when the drill is used in a downward direction. (Fig. 15)

2. Drilling holes

(1) Insert the plug into a receptacle.
(2) A spring is built in the center pin. By straightly and gently pressing it to the wall or floor surface, the entire surface of the core bit tip attains contact to start the hole drilling job. (Fig. 16)
(3) When the hole depth reaches approximately 5 mm, the hole position can be determined. Then remove the center pin and guide plate from the core bit and continue the hole drilling job.

CAUTION

When removing the center pin and guide plate, always disconnect the plug from the receptacle.

3. How to dismount the core bit

Remove the core bit shank from the rotary hammer, hold the core bit with one hand, and strongly strike the head of the hexagonal portion of the core bit shank with a manual hammer two or three times, whereby the round head screw is loosened and the rotary hammer is ready for disassembly. (Fig. 17)

Core bit Core bit shank

Fig. 14 Fig. 13
Guide plate Center pin Core bit Core bit tip

Fig. 15

HiKOKI DH38SS - How to dismount the core bit - 3

natural_image Line drawing of a hand operating a drill bit with a threaded shaft (no text or symbols)

Fig. 16

Core bit shank Core bit

Fig. 17

HOW TO REPLACE GREASE

This machine is of full air-tight construction to protect against dust and to prevent lubricant leakage. Therefore, the machine can be used without lubrication for long periods. Replace the grease as described below.

1. Grease replacement period

After purchase, replace grease after every 6 months of usage. Ask for grease replacement at the nearest Hitachi authorized Service center. Proceed for replacement of grease.

2. Grease replenishment

CAUTION

Before replenishing the grease, turn the power off and pull out the power plug.

(1) Remove the crank cover and wipe off the grease inside. (Fig. 18)
(2) Supply 30g of Hitachi Electric Hammer Grease A (Standard accessory, contained in tube) to the crank case.
(3) After replenishing the grease, install the crank cover securely.

NOTE

The Hitachi Electric Hammer Grease A is of the low viscosity type. If necessary purchase from an Hitachi authorized Service center.

Crank cover

Fig. 18

MAINTENANCE AND INSPECTION

1. Inspecting the tool

Since use of a dull tool will degrade efficiency and cause possible motor malfunction, sharpen or replace the tool as soon as abrasion is noted.

2. Inspecting the mounting screws:

Regularly inspect all mounting screws and ensure that they are properly tightened. Should any of the screws be loose, retighten them immediately. Failure to do so could result in serious hazard.

3. Maintenance of the motor

The motor unit winding is the very “heart” of the power tool. Exercise due care to ensure the winding does not become damaged and/or wet with oil or water.

4. Inspecting the carbon brushes (Fig. 19)

The Motor employs carbon brushes which are consumable parts. When they become worn to or near the “wear limit”, it could result in motor trouble. When an auto-stop carbon brush is equipped, the motor will stop automatically. At that time, replace both carbon brushes with new ones which have the same carbon brush

Numbers shown in the figure. In addition, always keep carbon brushes clean and ensure that they slide freely within the brush holders.

Wear limit 73 7 mm 17 mm No. of Carbon Brush

Fig. 19

5. Replacing carbon brushes

Loosen the two set screws and remove the tail cover. Remove the brush caps and carbon brushes. After replacing the carbon brushes, tighten the brush caps securely and install the tail cover with securely tightening two set screws.

6. Service parts list

CAUTION

Repair, modification and inspection of Hitachi Power Tools must be carried out by a Hitachi Authorized Service Center.

This Parts List will be helpful if presented with the tool to the Hitachi Authorized Service Center when requesting repair or other maintenance.

In the operation and maintenance of power tools, the safety regulations and standards prescribed in each country must be observed.

● Power supply cable

In case you need replacing of power supply cable, use the heavy polychloroprene sheathed fl exible cable 245IEC66 (YCW) or equivalent.

SERVICE PARTS LIST

Exploded view diagram of a mechanical assembly with numbered parts and component labels

Item No.Code No.No. UsedRemarks
13312411
23312431
39916972 D4×20
49819424 M6×25
53312381
63195721 S-25
73312441
83312422
99901342
103312401
113312391
123312371
139917124 M6×25
149569961 1AS-60
153218431
163312361
173312221
183133961
193312231
203312241
213218351
223312251
233312271
243218321
253312281
263312261
273312322
283312301
293312291
303312311
313312331
323312341
333312351
349861042
353312211
363263691
373212851
386201DD1 6201DDCMPS2L
393250031
40360875E1 220V-230V
Item No.Code No.No. UsedRemarks
413312521
429531742 D5×55
43340753E1 220V-230V “44”
449307032
453312511 “86, 87”
463312101 “47-49, 51-59”
473312111
489441092 3×3×8
493312121
503130501
516002DD1 6002DDCMPS2L
523312131
533312141
543212811
5533121810
5633121710
573312151
583312191
59629VVM1 629VVC2PS2L
603312201
619928032 M6×20
629869404 M6×45
63———2
649941926 M5×16
653312451
668787131
673312071
683315491
699395401
703312081
719483911
726203DD1 6203DDCMPS2L
739963631 S-40
743212741
753312091
769392991 M661
773312531
783079471 M6×12
793312481
809495561 M6

English

Item No.Code No.No. UsedRemarks
81331247 1
82331246 1
83330209 1
84945161 2
85999043 2
86958900 2
87938477 2 M5×8
88982631 1
89608VVM 1 608VVC2PS2L
90331254 1
91331202 1
92302089 4 D5×20
93331203 1
94331204 1
95330216 1 270L
96959141 1
97——1
98500457Z 1
99940778 1 D10.7
100981974 1
101313093 1
102938307 1
103959141 1
104960266 1
105984750 2 D4×16
106331205 1
107307028 2 D4×25
108331547 1
501331206 1

HiKOKI DH38SS - SERVICE PARTS LIST - 2

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Product information

Brand : HiKOKI

Model : DH38SS

Category : Rotary hammer