2
Application
This Electric Chisel should be applied to breaking concrete, chipping off concrete, grooving,
bar cutting, and driving piles in installation of piping and wiring, unitary facility installation,
machinery installation water supply, and drainage work, interior jobs, harbor facilities and
other civil engineering work etc. The tool is to be used only for its prescribed purpose. Any
other use is deemed to be a case of misuse.
Technical specifications
Noise:
Sound pressure level LpA L
PA
: 96.1dB(A)
Uncertainty K K=3.0dB(A)
Guaranteed sound power level
“Chiselling mode”:
L
WA
: 104.1dB(A)
Vibration
"
"
C
C
h
h
i
i
s
s
e
e
l
l
l
l
i
i
n
n
g
g
"
"
a
h(CHeq)
11.1m/s
2
K=1.5m/s
2
Residual risks
Even when the power tool is used as prescribed it is not possible to eliminate all residual risk factors. The
following hazards may arise in connection with the power tool’s construction and design:
1. Damage to lungs if an effective dust mask is not worn.
2. Damage to hearing if effective hearing protection is not worn.
3. Damages to health resulting from vibration emission if the power tool is being used over longer period of time or
not adequately managed and properly maintained.
WARNING! This power tool produces an electromagnetic field during operation. This field may under some
circumstances interfere with active or passive medical implants. To reduce the risk of serious or fatal injury, we
recommend persons with medical implants to consult their physician and the medical implant manufacturer before
operating this machine.
Machine Type PH12-18MA
Rated Voltage
AC 110V
Frequency 50Hz
Rated current
15A
Impact frequency 1050-2100/min
Impact energy 5-29 J, 4 - 21 Ft/Lbs
Chisel positions 12
Tool holder SDS-max
Weight
25.3lbs
3
Standard accessories
Point
Chisel
1 piece
Flat
Chisel
1 piece
One bottle of grease 60g
Carbon brush 1 couple
Optional accessories (sold separately）
Notice: Optional accessories (sold separately) are recommended only for Stark tools for specified
purpose in manual, any other brand accessories or attachments used may present risk of injury.
1. Tine Chisel: 18*350mm(SDS max )
2. Flat Chisel :18*350mm (SDS max )
3. Big Flat Chisel :18*400mm (SDS max )
4. Goose Chisel :18*400mm (SDS max )
5. Surface Roughing (Hammering)
(1) Bushing Tool (2) Shank
6. Tamping (Hammering)
(1) Rammer (2) Shank (150 x 150 mm)
Optional accessories are subject to change without notice.
4
In this operator's manual/or machine’s labels following symbols are used:
Read the operating
instructions before use.
Denote risk of personal injury, loss of
life or damage to the tool in
case of
nonobse
rvance of the instruction in
this manual.
Double insulation
Indicate electrical shock hazard.
Wear ear and eye protection
Immediately unplug the plug from
the main electricity in the case that
the cord gets damage and during
maintenance.
Faulty and /or discarded
electrical or electronic
apparatus have to be collected
at the appropriate recycling
location.
General Power Tool Safety Warnings
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.
5
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.
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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 jewelry. Keep your hair, clothing and
gloves away from moving parts. Loose clothes, jewelry or long hair can be caught in moving
parts.
g) If de
vices 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.
h) Do not let familiarity gained from frequent use of tools allow you to become
complacent and ignore tool safety principles. A careless action can cause severe injury
within a fraction of a second.
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 powersource 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.
h) Keep handles and grasping surfaces dry, clean and free from oil and grease.Slippery
handles and grasping surfaces do not allow for safe handling and control of the tool in
unexpected situations.
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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.
Special requirements for Demolition hammer
Wear ear protectors. Exposure to noise can cause hearing loss.
Use auxiliary
handle(s), if supplied with the tool. Loss of control can cause personal injury. 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.
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.
When working with the power tool, always hold it firmly with both hands and
provide foe a secure stance. The power tool is guided more secure with both hands Do not
work materials containing asbestos. Asbestos is considered carcinogenic. Always wait
until the power tool has come to a complete stop before placing it down. The tool insert
can jam and lead to loss of control over the power tool.
Do not use the power tool with a damaged cord. Do not touch the damaged cord
and pill the plug from the outlet when the cord is damaged while working. Damaged
cords increase the risk of an electric shock.
Connect power tools that are used in the open via a Ground Fault Circuit Interrupter
(GFCL).
Ear hearing protection. Exposure to noise can cause hearing loss.
Use the auxiliary handle supplied with the power tool. Loss of control over the power
tool can cause personal injury.
Use suitable detectors to determine of utility lines are hidden in the work area or
call the local utility company for assistance. Contact with electric lines can lead to fire and
electric shock. Damaging a gas line can lead to explosion. Penetrating a water line causes
property damage or may cause an electric shock.
Hold the power tool only by the insulated gripping surfaces when performing an
operation where the cutting tool may contact hidden wiring or its own power cord.
Contact with a “live” wire will also make exposed metal parts of the power tool “live” and
shock the operator.
Do not touch the bit during or immediately after operation. The bit becomes very hot
during operation and could cause serious burns.
If the replacement of the supply cord is necessary, this has to be done by the
manufacturer or his agent in order to avoid a safety hazard.
CAUTION: The insert tool may become hot During Use. There is a risk of burning the hands.
Wear Protective gloves when changing insert.
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Prior to operation
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this
manual including all text under subheadings therein before set up use of this products.
1. Power source
Ensure that the power source to be utilized conforms to the power requirements which
specified on the name plate of the hammer.
2. Power switch
Ensure that the power switch is in the position of OFF. If the plug is connected to power
receptacle while the power switch is in ON position, the demolition hammer will start operation
immediately, which can cause 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.
Switch operating
Observe correct mains voltage! The voltage of the power source must agree with the voltage specified
on the type plate of the power tool.
For low temperatures, the power tool reaches the full impact rate only after
a certain time.
Switch ON To start the power tool, Press the switch towards
arrow “I” direction
Switch
OFF
To switch off the power tool, Press the switch
towards arrow “0” direction.
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Mounting tool bits
Warning: before do it, make sure unplug the machine!
Warning: Always wear gloves when changing accessories. The exposed may become
extremely hot during operation.
Fig1
Fig2
Fig3
Fig4
1. The Chisel needs to be wiped clean before ready to use.
2. Apply oil to the top of the chisel. Follow the direction of the arrow, insert chisel into Flex
Sheath.
3. Rotate the Flex Sheath with your hand in the direction as indicated by the arrow, chisel can
be fixed.
4. Grip the Flex Sheath and pull it back, chisel can be removed.
Maintenance and inspection
Before do any maintenance, ensure unplug the plug.
1. Inspecting the demolition hammer
Use a dull accessory, such as bull point, cutter, etc., will cause motor malfunction and
efficiency degraded. Replace with a new one when your accessory is abased.
2. Inspecting the mounting screws
Regularly inspect all mounting screws and ensure that they are properly tightened. Any
loose should be tighten immediately, failure to do maybe cause serious hazard.
3. Inspecting the bit retainer
The retainer may become loose due to excessive use. Make sure the bit shank position is
hold securely, if any wear or damage is found, ask the authorized service people to maintenance.
4. Maintenance the motor
The motor is the heart of the machine, please avoid any damage to the winding, or any
water and oil to wet it.
5. Carbon brush replacements
When the carbon brushes are worn out, the power tool switches itself off. The power tool
must then be sent to an after-sales service agent.
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When you have to replacement the carbon brushes by yourself, please following the order：
(1) Loosen the six set screws and remove the fan cover.
(2) Remove the helical spring and carbon brushes.
(3) After replacing the carbon brushes, install the helical spring and fan cover, with securely
tightening six set screws.
Remark: after carbon brush replacement, please make sure all of the screws are tightened
enough!
if the supply cord of this power tool is damaged, it must be replaced by a specially prepared supply
cord
available through the service organization;
6. Cleaning
Clean the machine regularly with a soft cloth, preferably after each use. Solvent such as gasoline,
thinner, alcohol etc.. These kind o
f chemical materials are not allowed to use, water or soap are
recommended! Always keep the power tool and the ventilation slots clean.
7. Warranty
For the condition of warranty, please refer to the separately provided warranty card.
Environment
Faulty and /or discarded electrical or electronic apparatus have to be collected at the
appropriate recycling location.
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