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IMPORTANT SAFETY INSTRUCTIONS
Read and understand all of the safety precautions, warnings and operating instructions in
the Instruction Manual before operating or maintaining this power tool.
Most accidents that result from power tool operation and maintenance are caused by the
failure to observe basic safety rules or precautions. An accident can often be avoided by
recognizing a potentially hazardous situation before it occurs, and by observing appropriate
safety procedures.
Basic safety precautions are outlined in the “SAFETY” section of this Instruction Manual
and in the sections which contain the operation and maintenance instructions.
Hazards that must be avoided to prevent bodily injury or machine damage are identified by
WARNINGS on the power tool and in this Instruction Manual.
NEVER use this power tool in a manner that has not been specifically recommended by
metabo HPT.
MEANINGS OF SIGNAL WORDS
WARNING indicates a potentially hazardous situations which, if ignored, could result in
death or serious injury.
CAUTION indicates a potentially hazardous situations which, if not avoided, may result in
minor or moderate injury, or may cause machine damage.
NOTE emphasizes essential information.
SAFETY
GENERAL POWER TOOL SAFETY WARNINGS
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 flammable 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.
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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.
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.
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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.
ROTARY HAMMER SAFETY WARNINGS
1. Wear ear protectors.
Exposure to noise can cause
hearing loss.
2. Use auxiliary handles, if supplied with
the tool.
Loss of control can cause personal
injury.
3. Hold power tools by insulated gripping
surfaces, when performing an operation
where the cutting tool 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.
4. NEVER touch the tool bit with bare
hands after operation.
5. NEVER wear gloves made from
materials likely to roll up such as cotton,
wool, cloth or string, etc.
6. ALWAYS attach the side handle and
securely grip the Rotary Hammer.
7. NEVER touch moving parts.
NEVER place your hands, fingers or
other body parts near the tool’s moving
parts.
8. NEVER operate without all guards in
place.
NEVER operate this tool without all
guards or safety features in place and
in proper working order. If maintenance
or servicing requires the removal of a
guard or safety feature, be sure to
replace the guard or safety feature
before resuming operation of the tool.
9. Use right tool.
Don’t force small tool or attachment to
do the job of a heavy-duty tool.
Don’t use tool for purpose not intended
—for example— don’t use circular saw
for cutting tree limbs or logs.
10. NEVER use a power tool for applications
other than those specified.
NEVER use a power tool for applications
other than those specified in the
Instruction Manual.
11. Handle tool correctly.
Operate the tool according to the
instructions provided herein. Do not
drop or throw the tool. NEVER allow the
tool to be operated by children,
individuals unfamiliar with its operation
or unauthorized personnel.
12. Keep all screws, bolts and covers tightly
in place.
Keep all screws, bolts, and plates tightly
mounted.Checktheirconditionperiodically.
13. Do not use power tools if the plastic
housing or handle is cracked.
Cracks in the tool’s housing or handle
can lead to electric shock. Such tools
should not be used until repaired.
14. Blades and accessories must be
securely mounted to the tool.
Prevent potential injuries to yourself or
others. Blades, cutting implements and
accessories which have been mounted
to the tool should be secure and tight.
15. Keep motor air vent clean.
The tool’s motor air vent must be kept
clean so that air can freely flow at all
times. Check for dust build-up frequently.
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23. Definitions for symbols used on this tool
V ............ volts
Hz .......... hertz
A ............ amperes
no .......... no load speed
W ........... watt
........... Class II Construction
---/min ... revolutions per minute
.......... Alternating current
DOUBLE INSULATION FOR SAFER OPERATION
To ensure safer operation of this power tool,
metabo HPT has adopted a double
insulation design. “Double insulation”
means that two physically separated
insulation systems have been used to
insulate the electrically conductive
materials connected to the power supply
from the outer frame handled by the
operator. Therefore, either the symbol “ ”
or the words “Double insulation” appear
on the power tool or on the nameplate.
Although this system has no external
grounding, you must still follow the normal
electrical safety precautions given in this
Instruction Manual, including not using the
power tool in wet environments.
To keep the double insulation system
effective, follow these precautions:
䡬 Only metabo HPT Authorized Service
Center should disassemble or
assemble this power tool, and only
genuine metabo HPT replacement
parts should be installed.
䡬 Clean the exterior of the power tool only
with a soft cloth moistened with soapy
water, and dry thoroughly.
Never use solvents, gasoline or thinners
on plastic components; otherwise the
plastic may dissolve.
16. Operate power tools at the rated
voltage.
Operate the power tool at voltages
specified on its nameplate.
If using the power tool at a higher
voltage than the rated voltage, it will
result in abnormally fast motor
revolution and may damage the unit and
the motor may burn out.
17. NEVER use a tool which is defective or
operating abnormally.
If the tool appears to be operating
unusually, making strange noises, or
otherwise appears defective, stop using
it immediately and arrange for repairs
by a metabo HPT authorized service
center.
18. NEVER leave tool running unattended.
Turn power off.
Don’t leave tool until it comes to a
complete stop.
19. Carefully handle power tools. Should a
power tool be dropped or struck
against hard materials
inadvertently, it may be deformed,
cracked, or damaged.
20. Do not wipe plastic parts with solvent.
Solvents such as gasoline, thinner
benzine, carbon tetrachloride, and
alcohol may damage and crack plastic
parts. Do not wipe them with such
solvents.
Wipe plastic parts with a soft cloth lightly
dampened with soapy water and dry
thoroughly.
21. ALWAYS wear eye protection that meets
the requirement of the latest
revision of ANSI Standard Z87.1.
22. ALWAYS be careful with buried object
such as an underground wiring.
Touching live wiring or electric cable
with this tool may result in electric shock.
Confirm before use whether hidden
objects are present, such as electric
cables within the wall, floor or ceiling.
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SAVE THESE INSTRUCTIONS
AND
MAKE THEM AVAILABLE TO
OTHER USERS
AND
OWNERS OF THIS TOOL!
FUNCTIONAL DESCRIPTION
NOTE:
The information contained in this Instruction Manual is designed to assist you in the
safe operation and maintenance of the power tool.
NEVER operate, or attempt any maintenance on the tool unless you have first read and
understood all safety instructions contained in this manual.
Some illustrations in this Instruction Manual may show details or attachments that differ
from those on your own power tool.
NAME OF PARTS
Fig. 1
Housing
Nameplate
Drill bit
Front cap
Grip
Tail cover
Side handle
Push button
Switch
Change lever
Stopper
Handle
Set screw
(under the tail cover)
Brush cap
(inside the tail cover)
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SPECIFICATIONS
Motor Single-Phase, Series Commutator Motor
Power Source Single-Phase, 120V 60Hz
Current 6.3A
Capacity Concrete: 5/32" – 1-1/8" (4mm – 28mm)
Steel: 1/2" (13mm)
Wood: 1-1/4" (32mm)
No-Load Speed 0 – 1,050/min.
Full-load Impact Rate 0 – 4,000/min.
Weight 7.7 lbs (3.5 kg)
ASSEMBLY AND OPERATION
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 source
requirements specified on the product
nameplate.
2. Power switch
Ensure that the switch is in the OFF
position. If the plug is connected to a
receptacle while the switch is in the ON
position, the power tool will start
operating immediately and can cause
serious injury.
3. Extension cord
When the work area is far away from the
power source, use an extension cord of
sufficient thickness and rated capacity.
The extension cord should be kept as
short as practicable.
WARNING:
Damaged cord must be
replaced or repaired.
4. Check the receptacle
If the receptacle only loosely accepts the
plug, the receptacle must be repaired.
Contact a licensed electrician to make
appropriate repairs.
If such a fautly receptacle is used, it may
cause overheating, resulting in a serious
hazard.
5. Confirming condition of the
environment:
Confirm that the work site is placed under
appropriate conditions conforming to
prescribed precautions.
6. Mounting the drill bit (Fig. 2)
CAUTION:
To prevent accidents, make sure to turn
the switch off and disconnect the plug
from the receptacle.
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Dust cup
Fig. 4
Drill bit
Part of SDS-plus shank
Grip
Front cap
Fig. 2
Installing dust collector (B)
When using dust collector (B), insert dust
collector (B) from the tip of the bit by
aligning it to the groove on the grip (Fig. 5)
Fig. 5
Grip
Fig. 3
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) Insert the drill bit in a twisting manner
into the tool holder until it latches
itself. (Fig. 2)
(3) Check the latching by pulling on the drill
bit.
(4) To remove the drill bit, fully pull the grip
in the direction of the arrow and pull out
the drill bit. (Fig. 3)
7. Installation of dust cup or dust
collector (B) (Optional accessories)
(Fig. 4, Fig. 5)
When using a rotary hammer for upward
drilling operations attach a dust cup or
dust collector (B) to collect dust or
particles for easy operation.
Installing the dust cup
Use the dust cup by attaching to the drill
bit a shown in Fig. 4.
When using a bit which has big diameter,
enlarge the center hole of the dust cup
with this rotary hammer.
CAUTION:
The dust cup and dust collector (B) are
for exclusive use of concrete drilling
work. Do not use them for wood or metal
drilling work.
Insert dust collector (B) completely into
the chuck part of the main unit.
When turning the rotary hammer on
while dust collector (B) is detached from
a concrete surface, dust collector (B) will
rotate together with the drill bit. Make
sure to turn on the switch after pressing
dust cup on the concrete surface. (When
using dust collector (B) attached to a drill
bit that has more than 7-15/32" (190 mm)
of overall length, dust collector (B)
cannot touch the concrete surface and
will rotate. Therefore please use dust
collector (B) by attaching to drill bits
which have 6-17/32" (166 mm), 6-19/64"
(160 mm) and 4-21/64" (110 mm) overall
length.
Dump particles after every two or three
holes when drilling.
Dust collector (B)
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Please replace the drill bit after removing
dust collector (B).
8. Selecting the driver bit
Screw heads or bits will be damaged
unless a bit appropriate for the screw
diameter is employed to drive in the
screws.
9. Confirm the direction of bit rotation
(Fig. 6)
The bit rotates clockwise (viewed from
the rear side) by pushing the R-side of
the push button. The L-side of the push
button is pushed to turn the bit
counterclockwise.
10.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.
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.
Push button
R
L
Fig. 6
Fig. 7
Change lever
Push button
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.
NOTE:
Ensure that the wing bolt in the side
handle is properly tightened before
using the tool.
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. To turn the switch
OFF, release the trigger switch to its
original position.
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 mark. (Fig. 4)
Turn the grip slightly and confirm that the
clutch has been engaged with a click.
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CAUTION:
Application of force more than
necessary will not only reducing
drilling efficiency at all, but will
deteriorate the tip edge of the drill bit
and reduce the service life of the
rotary hammer in addition.
Drill bit 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 main unit 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
adaptor attached. This would seriously
shorten the service life of every
components of the machine.
4. When driving machine screws
(Fig. 11)
First, insert the bit into the socket in the
end of chuck adaptor (D).
Next, mount chuck adaptor (D) on the
main unit using procedures described in
6 (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.
Drill chuck Part of SDS-
plus shank
Grip
Front
cap
Chuck adapter
Fig. 10
Fig. 8
Fig. 9
Change lever
Push button
(1) Mount the drill bit.
(2) Pull the trigger switch after applying the
drill bit tip to the drilling position (Fig. 8)
(3) Pushing the rotary hammer forcibly is not
necessary at all. Pushing slightly so that
drill dust comes out gradually is just
sufficient.
3. Rotation only
This rotary hammer can be set to
rotation only mode by pressing the push
button and turning the change
lever to mark. (Fig. 6)
Turn the grip slightly and confirm that the
clutch has been engaged with a click.
To drill a wood or metal material using
the separately sold drill chuck and chuck
adaptor, proceed as follows. Installing
drill chuck and chuck adaptor (Fig. 10):
(1) Attach the drill chuck to the chuck
adaptor.
(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.
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6. Hammering only
This rotary hammer can be set to
hammering only mode by pressing the
push button and turning the change le-
ver to mark. (Fig. 12)
(1) Mount the bull point or cold chisel.
(2) Press the push button and set the change
lever to mark. (Fig. 13)
The rotation is released, turn the tool and
adjust the tool to desired position. (Fig.
14)
(3) Turn the change lever to mark.
(Fig. 12)
Then bull point or cold chisel is locked.
7. Using the stopper (Fig. 15)
(1) Loosen the wing bolt, and insert the
stopper into the mounting hole on the
side handle.
(2) Adjust the stopper position according to
the depth of the hole and tighten the wing
bolt securely.
Fig. 12
Push button
Change lever
Front cap
Grip
Bit
Socket
Chuck
adapter
(D)
Fig. 11
Fig. 14
Fig. 13
Push button
Change lever
CAUTION:
䡬 Exercise care not to excessively prolong
driving time, otherwise, the screws may
be damaged by excessive force.
䡬 Apply the rotary hammer perpendicularly
to the screw head when driving a screw;
otherwise, the screw head or bit will be
damaged, or driving force will not be fully
transferred to the screw.
䡬 Do not attempt to use the rotary hammer
in the rotation and hammering function
with chuck adaptor (D) and bit attached.
5. When driving wood screws (Fig. 11)
(1) Selecting a suitable driver bit
Employ phillips screws, if possible, since
the driver bit easily slips off the heads of
slotted-head screws.
(2) Driving in wood screws
䡬 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.
䡬 After rotating the rotary hammer at low
speed for a while until a wood screw in
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.
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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 penetrating large hole use the
core bit (for light load). At that time use with
the center pin and the core bit shank pro-
vided as optional accessories.
1. Mounting
CAUTION:
Be sure to turn power OFF and discon-
nect the plug from the receptacle.
(1) Mount the core bit to the core bit shank.
(Fig. 18)
Lubricate the thread of the core bit shank
to facilitate disassembly.
(2) Mount the core bit shank to the rotary
hammer. (Fig. 19)
Mounting hole
Wing bolt
Side handle
Fig. 15
Stopper
Fig. 16
Front cap
Grip
Taper shank adaptor
Drill bit
Cotter
Rests
Taper shank adaptor
Fig. 17
8. How to use the drill bit (taper shank)
and the taper shank adaptor.
(1) Mount the taper shank adaptor to the
rotary hammer. (Fig. 16)
(2) Mount the drill bit (taper shank) to the
taper shank adaptor. (Fig. 16)
(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 adaptor and strike the head of the
cotter with a hammer supporting on the
rests. (Fig. 17)
Fig. 18
Core bit
Thread
Core bit shank
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Core bit tip
Fig. 20
Core bit
Guide plate
Center pin
Fig. 21
Fig. 19
Fig. 22
Core bit shank
2. How to bore (Fig. 21)
(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 all over the surface of
the core bit tip and start operating.
(3) When boring about 3/16" (5 mm) in depth
the position of the hole will establish.
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.
(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 left or right
so that it does not fall even if it faces
downward. (Fig. 20)
CAUTION:
When removing the center pin and the
guide plate, turn OFF the switch and
disconnect the plug form the receptacle.
3. Dismounting. (Fig. 22)
Remove the core bit shank from the
rotary hammer and strike the head of the
core bit shank strongly two or three times
with the manual hammer holding the
core bit, then the thread becomes loose
and the core bit can be removed.
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MAINTENANCE AND INSPECTION
WARNING: Be sure to switch power OFF and disconnect the plug from the receptacle
during 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 a new one or
resharpening without delay when
abrasion is noted.
2. Inspecting the screws
Regularly inspect all screws and ensure
that they are properly tightened. Should
any of the screws be loosened, retighten
them immediately.
WARNING:
Using this rotary hammer with loosen
screws is extremely dangerous.
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.
23)
The motor employs carbon brushes
which are consumable parts. When they
become worn to or near “wear limit”, it
could result in motor trouble. At that
time, replace both carbon brushes with
new ones which have the same carbon
brush Nos. shown in the figure.
In addition, always keep carbon brushes
clean and ensure that they slide freely
within the brush holders.
CAUTION:
Using this rotary hammer with a carbon
brush which is worn in excess of the wear
limit will damage the motor.
(For parts name, refer to Fig. 1)
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 to install the tail cover with
securely tightening two set screws.
5. How to replase grease
This machine is 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.
䡬 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
metabo HPT Authorized Service
Center. Proceed for replacement of
grease.
Wear limit
No. of carbon brush
0.24" (6 mm)
0.67" (17 mm)
04
Fig. 23
NOTE: Use metabo HPT carbon brush
No.04 indicated in Fig. 23.
䡬 Replacing carbon brushes:
01Eng_DH28PC_US.P65 5/26/10, 2:15 PM
15
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16
English
Grease replenishment
CAUTION:
Before replenishing the grease, turn the
power off and pull out the power plug.
(1) Disassemble the crank case cover and
thoroughly wipe off the old grease inside.
(Fig. 24)
(2) Supply 0.9 oz (25g) of metabo HPT
Electric Hammer Grease A (standard
accessory, contained in tube) in the
crank case.
(3) After replacing the grease, reassemble
the crank case cover securely. At this
time, do not damage or lose the oil seal.
NOTE:
The metabo HPT Electric Hammer
Grease A is of the lower viscosity type.
When the supplied grease tube is
consumed, purchase from a
metabo HPT Autorized Service
Center.
6. Service and repairs
All quality power tools will eventually
require servicing or replacement of parts
because of wear from normal use. To
assure that only authorized replacement
parts will be used, all service and repairs
must be performed by a
metabo HPT Authorized Service
Center, ONLY.
7. Service parts list
A: Item No.
B: Code No.
C: No. Used
D: Remarks
CAUTION:
Repair, modification and inspection of
metabo HPT Power Tools must be
carried out by an metabo HPT
Authorized Service Center. This Parts
List will be helpful if presented with the
tool to the metabo HPT 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:
metabo HPT 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.
Fig. 24
Crank cover
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English
ACCESSORIES
WARNING: ALWAYS use Only authorized metabo HPT replacement parts and
accessories. NEVER use replacement parts or accessories which are
not intended for use with this tool. Contact metabo HPT if you are not
sure whether it is safe to use a particular replacement part or
accessory with your tool.
The use of any other attachment or accessory can be dangerous and
could cause injury or mechanical damage.
NOTE:
Accessories are subject to change without any obligation on the part of the metabo HPT.
STANDARD ACCESSORIES
(1) Plastic Case (Code No. 330220) .......................................................................................... 1
(2) Side Handle (Code No. 330208) .......................................................................................... 1
(3) Stopper (Code No. 982671) ................................................................................................. 1
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OPTIONAL ACCESSORIES (sold separately)
1. Drilling anchor holes (Rotation + Hammering)
Drill Bit (Taper shank) and taper shank adaptor
Taper mode Code No. Applicable drill bit
7/16" (11 mm)
1/2" (12.3 mm)
303617
1/2" (12.7 mm)
9/16" (14.3 mm)
9/16" (14.5 mm)
11/16" (17.5 mm)
303618 7/8" (21.5 mm)
A-taper 303619
B-taper 303620
External dia. Code No.
7/16"
944460
(11 mm)
1/2"
944461
(12.3 mm)
1/2"
993038
(12.7 mm)
9/16"
944462
(14.3 mm)
9/16"
944500
(14.5 mm)
11/16"
944463
(17.5 mm)
7/8"
944464
(21.5 mm)
Morse taper
(No. 1)
Drill bit
(Taper
shank)
Taper shank adaptor formed A-
taper or B-taper is provided as an
optional accessory, but drill bit for
it is not provided.
Morse taper
(No. 2)
Drill bit
(Taper
shank)
Cotter (Code No. 944477)
(2) Taper Shank Adaptor
(SDS-plus shank)
<Outer wedge type with the female screw>
Anchor size
W 1/4" W 5/16" W 3/8"
(6.3 mm) (8 mm) (9.5 mm)
Overall Length
10-1/4" 10-1/4" 6-1/4" 10-1/4"
(260 mm) (260 mm) (160 mm) (260 mm)
Code No. 302976 302975 303621 302974
Anchor Setter (for anchor
setting) (SDS-plus shank)
2. Knock-in anchor (Hammering only)
(1) Drill Bit (Taper Shank)
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Anchor setting adaptor
(for manual hammer)
<Outer wedge type with
the female screw>
Anchor size Code No.
W1/4"
971794
(6.3 mm)
W5/16"
971795
(8 mm)
W3/8"
971796
(9.5 mm)
W1/2"
971797
(12.7 mm)
W5/8"
971798
(15.9 mm)
<Inner wedge type with
the headless screw>
Anchor size Code No.
W1/4"
971799
(6.3 mm)
W5/16"
971800
(8 mm)
W3/8"
971801
(9.5 mm)
W1/2"
971802
(12.7 mm)
W5/8"
971803
(15.9 mm)
<Inner wedge type with the headless screw>
Anchor size
W 1/4" W 5/16" W 3/8"
(6.3 mm) (8 mm) (9.5 mm)
Overall Length
10-1/4" 10-1/4" 6-1/4" 10-1/4"
(260 mm) (260 mm) (160 mm) (260 mm)
Code No. 302979 302978 303622 302977
Core bit (outer diameter) Core bit shank
– –
1"(25 mm) 982672 Overall length
1-1/8" (29 mm) 982673 4-1/8" 303625
(A) 1-1/4" (32 mm) 982674 (A) (105 mm)
(A) 982684 1-3/8" (35 mm) 982675 12"
303626
1-1/2" (38 mm) 982676 (300 mm)
1-3/4" (45 mm) 982677
2" (50 mm) 982678 12"
(B) 982685 (B)
2-9/16" (65 mm) 982679
(B)
(300 mm)
303627
3-5/32" (80 mm) 982680
Center
pin
Code No. Code No. Code No.
3. Large hole boring (Rotation + Hammering)
Guide
Plate
Center pin Core Bit Core bit Shank
(SDS-plus shank)
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Guide plate
Core bit
(outer diameter)
1-1/4" (32 mm)
1-3/8" (35 mm)
1-1/2" (38 mm)
1-3/4" (45 mm)
Core bit
(outer diameter)
2" (50 mm)
2-9/16" (65 mm)
3-5/32" (80 mm)
Code No.
982686
982687
982688
982689
Code No.
982690
982691
982692
4. Demolishing operation (Hammering only)
Bull point (Round type) (SDS-plus shank)
Code No. 303046
Bull point (Square type) (SDS-plus shank)
Code No. 316656
5. Groove digging and edging (Hammering only)
Cold chisel (SDS-plus shank)
Code No. 316657
Cutter (SDS-plus shank)
Code No. 316658
6. Grooving (Hammering only)
Grooving chisel (SDS-plus shank)
Code No. 316659
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8. Drilling holes and driving screws (Rotation only)
Drill chuck, chuck adaptor and chuck wrench
Special screw
Code No. 981122
Drill chuck (13VLRB–D)
(includes chuck wrench)
Code No. 321814
Chuck adaptor G
(SDS-plus shank)
Code No. 303623
Chuck wrench
7. Bolt placing operation with Chemical Anchor. (Hammering only)
Standard socket
(on the market )
(SDS-plus shank)
1/2" (12.7 mm) Chemical
Anchor Adapter
(Code No.303044)
3/4" (19 mm) Chemical
Anchor Adapter
(Code No. 303045)
10. Dust cup, Dust collector (B)
11. Hammer grease A
1.1 lbs (500 g) (in a can) Code No. 980927
0.15 lbs (70 g) (in a green tube) Code No. 308471
0.07 lbs (30 g) (in a green tube) Code No. 981840
Bit No. Chuck adaptor (D)
(SDS-plus shank)
Code No. 303624
9. Driving Screws (Rotation only)
Phillips Driver Bit
Bit No. Screw Size Length Code No.
No.2 1/8" – 3/16" (3 – 5 mm) 1" (25 mm) 971511Z
No.3 1/4" – 5/16" (6 – 8 mm) 1" (25 mm) 971512Z
Dust cup
Code No. 971787
Dust collector (B)
Code No. 306885
NOTE:
Specifications are subject to change without any obligation on the part of the metabo HPT.
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