5
2
1
3
4
A
B
0
3
4
Hitachi Koki Co., Ltd.
610
Code No. C99149022 N
Printed in Japan
1
2
6
8
3
5
7
1
4
6
7
8
9
2
3
4
6
7
6
7
Read through carefully and understand these instructions before use.
Rotary Hammer
Handling instructions
DH 30PC2
100
B 2686-2689
5
2
1
3
4
A
B
0
3
4
Hitachi Koki Co., Ltd.
610
Code No. C99149022 N
Printed in Japan
1
2
6
8
3
5
7
1
4
6
7
8
9
2
3
4
6
7
6
7
Read through carefully and understand these instructions before use.
Rotary Hammer
Handling instructions
DH 30PC2
100
B 2686-2689
7
6
D
C
E
4
1
F
3
4
242
910
12
11
15
+
,
-
1413
3
16
(
)
~
.
/
+
:
17 18
,
1
2
3
4
5
6
7
8
9
0
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
Drill bit
Part of SDS-plus shank
Front cap
Grip
Dust cup
Change lever
Push button
Drill chuck
Chuck adapter
Chuck adapter (D)
Driver bit
Socket
Side handle
Stopper
Mounting hole
Tape shank adapter
Cotter
Rest
Core bit
Core bit shank
Thread
Center pin
Guide plate
Core bit tip
Crank cover
Wear limit
No. of carbon brush
Usual carbon brush
Auto-stop carbon brush
19
O
20
P
Q
a Q
R 6mm 43
S –73
17mm
a
7
6
D
C
E
4
1
F
3
4
242
910
12
11
15
+
,
-
1413
3
16
(
)
~
.
/
+
:
17 18
,
1
2
3
4
5
6
7
8
9
0
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
Drill bit
Part of SDS-plus shank
Front cap
Grip
Dust cup
Change lever
Push button
Drill chuck
Chuck adapter
Chuck adapter (D)
Driver bit
Socket
Side handle
Stopper
Mounting hole
Tape shank adapter
Cotter
Rest
Core bit
Core bit shank
Thread
Center pin
Guide plate
Core bit tip
Crank cover
Wear limit
No. of carbon brush
Usual carbon brush
Auto-stop carbon brush
19
O
20
P
Q
a Q
R 6mm 43
S –73
17mm
a
4
5
6
7
8
9
▲
10
11
12
GENERAL SAFETY RULES
WARNING!
Read all instructions
Failure to follow all instructions listed below may result in
electric shock, fire and/or serious injury.
The term “power tool” in all of the warnings listed below
refers to your mains operated (corded) power tool or battery
operated (cordless) power tool.
SAVE THESE INSTRUCTIONS
1) Work area
a) Keep work area clean and well lit.
Cluttered and dark areas invite accidents.
b) Do not operate power tools in explosive
atmospheres, such as in the presence of flammable
liquids, gases or dust.
Power tools create sparks which may ignite the
dust of 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
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 safety equipment. Always wear eye protection.
Safety equipment such as dust mask, non-skid
safety shoes, hard hat, or hearing protection used
for appropriate conditions will reduce personal
injuries.
c) Avoid accidental starting. Ensure the switch is in
the off position before plugging in.
Carrying power tools with your finger on the
switch or plugging in 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 these devices 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.
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 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
tools 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 and in the
manner intended for the particular type of power
tool, taking into account the working conditions
and the work to be performed.
Use of the power tool for operations different from
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.
PRECAUTION
Keep children and infirm persons away.
When not in use, tools should be stored out of reach of
children and infirm persons.
13
*Be sure to check the nameplate on product as it is subject to change by areas.
OPTIONAL ACCESSORIES (sold separately)
1. Drilling anchor holes (rotation + hammering)
Drill bit (Taper shank) and taper shank adapter
SPECIFICATIONS
STANDARD ACCESSORIES
(1) Plastic case ................................................................. 1
(2) Side handle ................................................................ 1
(3) Stopper ........................................................................ 1
(4) Dust cup ..................................................................... 1
(5) Syringe ........................................................................ 1
Drill bit (Taper shank)
Taper shank adapter
(SDS-plus shank)
Cotter
Outer diameter
11.0 mm
12.3 mm
12.7 mm
14.3 mm
14.5 mm
17.5 mm
21.5 mm
Taper mode Applicable drill bit
Morse taper (No.1) Drill bit (taper shank) 11.0 ~ 17.5 mm
Morse taper (No.2) Drill bit (taper shank) 21.5 mm
A-taper Taper shank adapter formed A-taper or B-taper
is provided as an optional accessory, but the
B-taper
drill bit for it is not provided.
Voltage (by areas)* (110 V, 115 V, 120 V, 127 V, 220 V, 230 V, 240 V)
Power input 850 W*
No-load speed 0 – 850/min
Full-load impact rate 0 – 3700/min
Capacity: concrete 4 – 30 mm
steel 13 mm
wood 32 mm
Weight (without cord and side handle) 4.3 kg
Standard accessories are subject to change without
notice.
PRECAUTIONS ON USING ROTARY HAMMER
1. Wear ear protections
Exposure to noise can cause hearing loss.
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. Use auxiliary handles supplied with the tool.
Loss of control can cause personal injury.
5. 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.
6. 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.
14
Anchor setting adapter (for manual hammer)
Anchor setting adapter
(for manual hammer)
Anchor setting adapter (SDS-plus shank)
(for rotary hammer)
Overall length: 160, 260 mm
Anchor size
W1/4"
W5/16"
W3/8"
Anchor size
W1/4"
W5/16"
W3/8"
W1/2"
W5/8"
3. Large hole boring (rotation + hammering)
Center pin, core bit, core bit shank and guide plate.
(Guide plate) Center pin Core bit Core bit shank
(SDS-plus shank)
Center pin Core bit (outer diameter) Core bit shank
–
25 mm
29 mm
(A)
32 mm Core bit shank (A)
Center pin (A) 35 mm
38 mm
45 mm
50 mm
Center pin (B) (B) 65 mm Core bit shank (B)
80 mm
90 mm
Do not use core bits with with guide plate
outer diameter of 25 mm (The guide plate is not equipped with core bits
and 29 mm. with outer diameter of 25 mm and 29 mm.)
2. Anchor setting (hammering only)
Anchor setting adapter (for rotary hammer)
4. Demolishing operation (hammering only)
Bull point (Round type) (SDS-plus shank)
Bull point (Square type) (SDS-plus shank)
15
7. Bolt placing operation with Chemical Anchor (rotation + hammering)
(SDS-plus shank)
12.7 mm Chemical Anchor Adapter
19 mm Chemical Anchor Adapter
Standard socket
on the market
( )
5. Groove digging and edging (Hammering only)
Cold chisel (SDS-plus shank)
Cutter (SDS-plus shank)
6. Grooving (Hammering only)
Grooving chisel (SDS-plus shank)
8. Drilling holes and driving screws (rotation only)
Drill chuck, chuck adapter (G), special screw and chuck wrench
Chuck adapter (G)
(SDS-plus shank)
Chuck wrench
Drill chuck (13VLRB-D)Special screw
9. Drilling holes (rotation only)
Chuck adapter (D)
(SDS-plus shank)
Chuck wrench
Drill chuck (13VLD-D)
16
13 mm drill chuck ass’y (includes chuck wrench) and chuck (for drilling in steel or wood).
10. Driving Screws (rotation only)
Chuck adapter (D)
(SDS-plus shank)
Bit No. Screw Size Length
No. 2 3 – 5 mm 25 mm
No. 3 6 – 8 mm 25 mm
11. Hammer grease A
500 g (in a can)
70 g (in a green tube)
30 g (in a green tube)
Optional accessories are subject to change without notice.
Bit No.
APPLICATIONS
Rotation and hammering function
Drilling anchor holes
Drilling holes in concrete
Drilling holes in tile
Rotation only function
Drilling in steel or wood
(with optional accessories)
Tightening machine screws, wood screws
(with optional accessories)
Hammering only function
Light-duty chiselling of concrete, groove digging
and edging.
PRIOR TO OPERATION
1. Power source
Ensure that the power source to be utilized conforms
to the power requirements specified on the product
nameplate.
2. Power switch
Ensure that the power switch is in the OFF position.
If the plug is connected to a receptacle while the
power switch is in the ON position, the power tool
will start operating immediately, which could cause
a serious accident.
3. 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.
4. Mounting the drill bit (Fig. 1)
CAUTION
To prevent accidents, make sure to turn the switch
off and disconnect the plug from the receptacle.
NOTE
When using tools such as bull points, drill bits, etc.,
make sure to use the genuine parts designated by
our company.
(1) Clean the shank portion of the drill bit.
(2) To attach a drill bit (SDS-plus shank), fully pull the
grip in the direction of the arrow as shown in Fig.
1 and insert the drill bit as far as it will go while
manually turning.
(3) By releasing the grip, the drill bit will be secured.
(4) To remove the drill bit, fully pull the grip in the
direction of the arrow and pull out the drill bit.
5. Installation of dust cup (Optional accessories) (Fig.
2)
When using a rotary hammer for upward drilling
operations attach a dust cup to collect dust or
particles for easy operation.
Installing the dust cup
Use the dust cup by attaching to the drill bit as
shown in Fig. 2.
When using a bit which has big diameter, enlarge
the center hole of the dust cup with this rotary
hammer.
CAUTION:
The dust cup is for exclusive use of concrete drilling
work. Do not use them for wood or metal drilling
work.
Dump particles after every two or three holes when
drilling.
6. Selecting the driver bit
Screw heads or bits will be damaged should an
inappropriate bit for the screw diameter be employed
to drive in the screws.
7. Selecting the function mode
You can switch functions to the 3 modes of
“hammering only, “rotation + hammering”, and
“rotation only” by turning the change lever while
pressing the push button. Set the ▲ mark position
of the change lever to that of the mode to be used.
CAUTION:
Before operating the change lever, check and make
sure that the motor has stopped.
A failure can occur if it is operated while the motor
is running.
17
To operate the change lever, press the push button,
and release the lock of the change lever. Also, check
and make sure after operation that the push button
has returned and that the change lever has been
locked.
Switch the change lever without mistake. If it is
used at a position halfway, there is a fear that the
service life of the switching mechanism may be
shortened.
HOW TO USE
CAUTION:
To prevent accidents, make sure to turn the switch off
and disconnect the plug from the receptacle when the
drill bits and other various parts are installed or removed.
The power switch should also be turned off during a
work break and after work.
1. Switch operation
The rotation speed of the drill bit can be controlled
steplessly by varying the amount that the trigger
switch is pulled. Speed is low when the trigger
switch is pulled slightly and increases as the switch
is pulled more.
2. Rotation + hammering
This rotary hammer can be set to rotation and
hammering mode by pressing the push button and
turning the change lever to the
mark (Fig. 3).
Turn the grip slightly and confirm that the clutch
has been engaged with a click.
(1) Mount the drill bit.
(2) Pull the trigger switch after applying the drill bit
tip to the drilling position. (Fig. 4)
(3) Pushing the rotary hammer forcibly is not necessary
at all. Pushing slightly so that drill dust comes out
gradually is sufficient.
CAUTION:
When the drill bit touches construction iron bar, the
bit will stop immediately and the rotary hammer
will react to revolve. Therefore grip the side handle
and handle tightly as shown in Fig. 4.
3. Rotation only
This rotary hammer can be set to rotation only
mode by pussing the push button and turning the
change lever to the
mark. (Fig. 5)
Turn the grip slightly and confirm that the clutch
has been engaged with a click.
To drill wood or metal material using the drill chuck
and chuck adapter (optional accessories), proceed
as follows.
Installing drill chuck and chuck adapter: (Fig. 6)
(1) Attach the drill chuck to the chuck adapter.
(2) The part of the SDS-plus shank is the same as the
drill bit. Therefore, refer to the item of “Mounting
the drill bit” for attaching it.
CAUTIONS:
Application of force more than necessary will not
only expedite the work, but will deteriorate the tip
edge of the drill bit and reduce the service life of
the rotary hammer in addition.
Drill bits may snap off while withdrawing the rotary
hammer from the drilled hole. For withdrawing, it
is important to use a pushing motion.
Do not attempt to drill anchor holes or holes in
concrete with the machine set in the rotation only
function.
Do not attempt to use the rotary hammer in the
rotation and hammering function with the drill chuck
and chuck adapter attached. This would seriously
shorten the service life of every component of the
machine.
4. When driving machine screws (Fig. 7)
First, insert the bit into the socket in the end of
chuck adapter (D).
Next, mount chuck adapter (D) on the main unit
using procedures described in 4 (1), (2), (3), put the
tip of the bit in the slots in the head of the screw,
grasp the main unit and tighten the screw.
CAUTIONS:
Exercise care not to excessively prolong driving
time, otherwise, the screws may be damaged by
excessive force.
Apply the rotary hammer perpendicularly to the
screw head when driving the screw; otherwise, the
screw head or bit will be damaged, or driving force
will not be fully transferred to the screw.
Do not attempt to use the rotary hammer in the
rotation and hammering function with the chuck
adapter and bit attached.
5. When driving wood screws (Fig. 7)
(1) Selecting a suitable driver bit
Employ cross-recessed screws, if possible, since the
driver bit easily slips off the heads of slotted-head
screws.
(2) Driving in wood screws
Prior to driving in wood screws, make pilot holes
suitable for them in the wooden board. Apply the
bit to the screw head grooves and gently drive the
screws into the holes.
After rotating the rotary hammer at low speed for
a while until the wood screw is partly driven into
the wood, squeeze the trigger more strongly to
obtain the optimum driving force.
CAUTION:
Exercise care in preparing a pilot hole suitable for
the wood screw taking the hardness of the wood
into consideration. Should the hole be excessively
small or shallow, requiring much power to drive
the screw into it, the thread of the wood screw may
sometimes be damaged.
6. Hammering only
This rotary hammer can be set to hammering only
mode by pressing the push button and turning the
change lever to the
mark (Fig. 8).
(1) Mount the bull point or cold chisel.
(2) Press the push button and set the change lever to
mark. (Fig. 9)
The rotation is released, turn the grip and adjust
the cold chisel to desired position. (Fig. 10)
(3) Turn the change lever to
mark. (Fig. 8)
Then bull point or cold chisel is locked.
7. Using the stopper (Fig. 11)
(1) Loosen the side handle, and insert the stopper into
the handle bolt hole.
(2) Adjust the stopper position according to the depth
of the hole and thighten the side handle securely.
18
8. How to use the drill bit (taper shank) and the taper
shank adapter
(1) Mount the taper shank adapter to the rotary hammer.
(Fig. 12)
(2) Mount the drill bit (taper shank) to the taper shank
adapter. (Fig. 12)
(3) Turn the switch ON, and drill a hole in prescribed
depth.
(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 rests. (Fig. 13)
9. Using the side handle
When you wish to change a position of the side
handle, turn grip of the side handle counterclockwise
to loosen it, and then fasten it firmly.
CAUTION:
When boring a hole, there can be a case where the
machine attempts to rotate by the reaction at the
time of penetrating a concrete wall and/or when a
tip of the blade comes in contact with the rebar.
Firmly fasten the side handle and hold the machine
with both of your hands. Unless you hold it securely,
an accident can occur.
HOW TO USE THE CORE BIT
(FOR LIGHT LOAD)
When boring penerating large holes use the core bit (for
light loads). At that time use with the center pin and the
core bit shank provided as optional accessories.
1. Mounting
CAUTION
Be sure to turn power OFF and disconnect the plug
from the receptacle.
(1) Mount the core bit to the core bit shank. (Fig. 14).
Lubricate the thread of the core bit shank to facilitate
disassembly.
(2) Mount the core bit to the rotary hammer (Fig. 15).
(3) Insert the center pin into the guide plate until it
stops.
(4) Engage the guide plate with the core bit, and turn
the guide plate to the left or the right so that it
does not fall even if it faced downward. (Fig. 16).
2. How to bore (Fig. 17)
(1) Connect the plug to the power source.
(2) A spring is installed in the center pin.
Push it lightly to the wall or the floor straight.
Connect the core bit tip flush to the surface and
start operating.
(3) When boring about 5 mm in depth the position of
the hole will be established. Bore after that removing
the center pin and the guide plate from core bit.
(4) Application of excessive force will not only expedite
the work, but will deteriorate the tip edge of the
drill bit, resulting in reduced service life of the
rotary hammer.
CAUTION
When removing the center pin and the guide plate,
turn OFF the switch and disconnect the plug from
the receptacle.
3. Dismounting (Fig. 18)
Remove the core bit shank from the rotary hammer
and strike the head of the core bit shank strongly
two or three times with a manual hammer holding
the core bit, then the thread becomes loose and
the core bit can be removed.
GREASE REPLACEMENT
This machine is full air-tight construction to protect
against dust incursion and to prevent lubricant leakage.
This machine can be used without grease replenishment
for an extended period of time. However, perform the
grease replacement to extend the service life. Replace
the grease as described below.
1. Grease Replacement Period
You should look at the grease when you change
the carbon brush. (See item 4 in the section
MAINTENANCE AND INSPECTION.)
Ask for grease replacement at the nearest authorized
Hitachi Service Center.
In the case that you are forced to change the grease
by yourself, please follow the following points.
2. How to replace grease
CAUTION:
Before replacing the grease, turn the power off and
pull out the plug from the receptacle.
(1) Disassemble the crank cover and thoroughly wipe
off the old grease inside. (Fig. 19)
(2) Supply 30g of Hitachi Electric Hammer Grease A
(standard accessory, contained in tube) in the crank
case.
(3) After replacing the grease, reassemble the crank
cover securely. At this time, do not damage or lose
the oil seal.
NOTE:
The Hitachi Electric Hammer Grease A is of the low
viscosity type. When the grease is consumed,
purchase from the authorized Hitachi Service
Center.
MAINTENANCE AND INSPECTION
1. Inspecting the drill bits
Since use of a dull tool will cause motor
malfunctioning and degraded efficiency, replace the
drill bit with new ones or resharpen them without
delay when 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. 20)
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
19
same carbon brush number shown in the figure.
In addition, always keep carbon brushes clean and
ensure that they slide freely within the brush holders.
5. Replacing carbon brushes
Loosen the set screw and remove the tail cover.
Remove the brush caps and carbon brushes. After
replacing the carbon brushes, do not forget to tighten
the brush caps properly and install the tail cover.
6. Service parts list
A: Item No.
B: Code No.
C: No. Used
D: Remarks
CAUTION
Repair, modification and inspection of Hitachi Power
Tools must be carried out by an 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.
MODIFICATIONS
Hitachi Power Tools are constantly being improved
and modified to incorporate the latest technological
advancements.
Accordingly, some parts (i.e. code numbers and/or
design) may be changed without prior notice.
NOTE:
Due to HITACHI’s continuing program of research and
development, the specifications herein are subject to
change without prior notice.
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他の言語で
- English: Hikoki DH30PC2 User manual
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