VEVOR JH-0840 User manual

DEMOLITION JACK HAMMER
USER MANUAL

01
DEMOLITION JACK HAMMER
USER MANUAL
JH-0840
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This is the original instruction, please read all manual instructions carefully before operating. VEVOR
resees clear interpretation of our user manual. The appearance of the product shall be subject to
the product you received. Please forgive us that we won't inform you again if there is any technology
or software updates on our product.

DESCRIPTION OFTHE SYMBOLS
The symbols used in this manual are intended to ale you of the possible risks. Please fully read
the safety signs and instructions below. The warning themselves do not prevent the risks and can
not be a substitute for proper methods of avoiding accidents.
02
WARNING: Be sure to wear eye protectors, dust
masks and gloves when using this product.
This device complies with Pa 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful inteerence, and
(2) this device must accept any inteerence received, including inteerence that
may cause undesired operation.
This product is subject to the provision of European Directive 2012/19/EC.The
symbol showing a crossed-out wheeled bin indicates that the product requires
separate refuse collection in the European Union. This symbol applies to the
product and all accessories marked with this symbol. Products marked as such may
not be discarded with normal domestic waste, but must be taken to a collection
point for recycling electrical and electronic devices.
WARNING – To reduce the risk of inju, user must read instruction manual carefully.
This symbol, placed before a safety comment, indicates a kind of precaution,
warning, or danger. Ignoring this warning may lead to an accident. To reduce the
risk of inju, re, or electrocution, please always follow the recommendations
shown below.

03
GENERALPOWERTOOLSAFETYWARNINGS
1) Workarea safety
a) Keep workarea 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 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 eahed (grounded) power tools. Unmodied plugs and matching outlets
will reduce risk of electric shock.
b) Avoid body contact with eahed or grounded suaces, such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric shock if your body is eahed or grounded.
c)Do not expose power tools to rain or wet conditions. Water leaked into power tools will increase
the risk of electric shock.
d)Do not abuse the cord. Never use the cord for caring, pulling or unplugging the power tools.
Keep cord away from heat, oil, sharp edges or moving pas. Damaged or entangled cords
increase the risk of electric shock.
e)When operating a power tool outdoors, please use an extension cord which is 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)
to protect the power supply. Use of an RCD reduces the risk of electric shock.
NOTE: The term “residual current device (RCD)” can be replaced by the term “ground fault circuit
interrupter (GFCI)” or “eah leakage circuit breaker (ELCB)”.
3) Personal safety
a)Stay ale and obsee what you are doing when operating power tools. Do not use power
tools while you are tired or under the inuence of drugs, alcohol or medication. A tempora
carelessness in the operation of power tools can lead to serious personal inju.
b)Use personal protective equipment. Be sure to wear eye protection devices. Protective
equipment such as dust masks, non-skid safety shoes, helmets, or hearing protection used for
appropriate conditions will reduce personal injuries.
WARNING: Read all safety warnings and all instructions. Failure to follow the
warnings and instructions may result in electric shock, re and/or serious inju.
Save all warnings and instructions for future reference.
The term "power tool" in the warnings refers to your mains-operated (corded)
power tool or batte-operated (cordless) power tool.

04
HAMMER SAFETYWARNINGS
c)Prevent unintentional staing of the machine. Make sure the switch is in the o-position
before connecting to power source and/or batte pack, picking up or caring the tool.
Caring power tools with your nger on the switch or charging while the tool is on can lead to
accidents.
d) Remove any adjusting key or wrench before turning the power tool on. A wrench or a key
left attached to a rotating pa of the power tool may result in personal inju.
e) Keep proper standing poses 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 jewelle. Keep your hair, clothing and gloves
away from moving pas. Loose clothes, jewelle or long hair can be caught in moving pas.
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 adaptable
power tools will work better and more safely at the designed speed.
b) Do not use the power tool if they cannot be turned on and o. 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 batte pack from the power tool
before making any adjustments, changing accessories, or storing power tools. Suchpreventive
safety measures reduce the risk of staing 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. It is dangerous for untrained
users to use these tools.
e) Maintain power tools. Check for misalignment or binding of moving pas. Breakage and any
other condition of the pas may aect the power tool’s operation. If it is damaged, please
repair the power tool before use. Many accidents are caused by poor maintenance of 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, tool bits and so on in accordance with the instructions,
taking into account the working conditions and the work to be peormed. Use of the power
tool for operations dierent from those intended could result in a hazardous situation.
5) Seice
a)Ask qualied maintenance personnel to use the same pas to repair and replace power tools.
This will ensure that the safety of the power tool is well maintained.
b)Caution!
If the power cord needs to be replaced, it must be replaced by the manufacturer or its agent to
avoid safety risks.

05
Use the auxilia handle(s), if supplied with the tool. Loss of control can cause personal
inju.
Please hold power tools by its insulated gripping suace, when peorming an operation
where the cutting accesso may contact hidden wiring or its own cord. Cutting accesso
contacting a live wire may make exposed metal pas of the power tool live and could give the
operator an electric shock.
Additional safety notes
· Prior to staing work, use appropriate tools to determine whether there are any hidden supply
lines are located on the area you are working in. If in doubt, ask the relevant supply seices.
Contact with power lines may cause re and electrical shock. Damaging a gas pipe may cause an
explosion. Damaging a water pipe leads to considerable propey damage and may cause
electrical shock.
· Avoid uncontrolled restaing. Switch the tool o when the power supply is interrupted. For
example, by a power failure or pulling the plug.
· Wait until the power tool is stationa before you put it down. The inseed tool may otherwise
jam and cause a loss of control over the power tool.
· Secure the work piece. Use equipment or a device to secure the work piece to help prevent
kickback or uncontrolled ying of the work piece (e.g. when getting jammed in the work piece).
· Immediately switch o the power tool when the inseed tool becomes blocked. Be prepared for
high responses instances in the event of kickback. The inseed tool will jam when the power tool
is overloaded or tilted within the work piece.
· Never use the power tool with a damaged cable. Do not touch a damaged cable and pull out
the power plug immediately. Damaged cables increase the risk of electric shock.
· Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges
are less likely to jam and are easier to control.
· Prevent overheating of the device and the work piece. Excess heat may damage the tool and
the device.
· Sholy after being used, the tool may be ve hot. Allow a hot tool to cool down. Touching a hot
tool may cause burns.
· Never clean a hot tool with ammable liquids. There is a risk of re and explosion.
· Keep the handles d and free of grease. Slippe handles can lead to accidents.
· When working, hold the power tool rmly with both hands and ensure you have a stable
footing. The power tool can be guided in a safer fashion when you use two hands.
· Always comply with the all applicable domestic and international safety, health, and working
regulations. Inform yourself before you sta work about the regulations that apply at the site of
the device.
· Remember that moving pas may also be located behind ventilation and venting slots.
· Symbols axed to your tools may not be removed or covered. Information on the device that is
no longer legible must be replaced immediately.
Risks caused by vibrations
CAUTION! Risk of inju due to vibrations! Vibrations may, in paicular for persons with circulation
problems, cause damage to blood vessels and/or nees. If you notice any of the following
symptoms, stop working immediately and consult a doctor. Numbness of body pas, loss of
sense of feeling, itching, pins and needles, pain, changes in skin colour.

06
LISTOF MAIN PART
Model
Voltage
Max. power
Rated power
Impact frequency
Grease
Sound power level ( LwA )
JH-0840
220-240V~ 50Hz(EUR/AUS); 120V~ 60Hz(USA)
1400W
1000W
2900 BPM
Mobiltemp SHC32
102dB ( A )
The vibration values specied in the technical data represent the main uses of the device.
The actual existing vibrations during use may deviate from these as a result of the following
factors:
· Incorrect use of the product;
· Unsuitable tools inseed;
· Unsuitable material;
· Insucient maintenance.
You can reduce the risks considerably by following the tips below:
–Maintain the device in accordance with the instructions in the operating instructions.
–Avoid working at low temperatures.
–When it is cold, make sure to keep your body and your hands warm.
–Take regular breaks and move your hands at the same time to promote circulation.
The machine is intended for heavy-duty chiselling, demolition, and driving and compaction works
when combined with the corresponding accessories.
INTENDED USE
TECHNICALSPECIFICATIONS

07
Before use
Disconnect the power supply before assembling, replacing, and adjusting any accessories to avoid
accidental staup.
Please always check the main supply voltage before use! It must correspond with the
rating label on the appliance.
Remove all packing material and loose pas from units.
Check the accessories before use. It should be t with the machine and your purpose.
Check the left oil and ll if necessa before each use.
Inseing and removing chisel
Clean the tool before inseion and apply a thin coating of drill bit grease to the shaft of the tool.
· Pull back and hold the locking sleeve.
· Inse the chisel into the tool mounting as far as it will go whilst turning it. The tool will
lock itself.
· Check that if is properly secure by pulling the chisel.
· Pull back and hold the locking sleeve and then remove the tool.
On/O switch
Switching on: Press down the On/O switch
To operate permanently, press the locking button whilst holding down the On/O switch.
Press the On/O switch again and release to release the lock.
1. Chisel lock
3. Gear box
5. Main handle
7. Motor cover
9. Carbon brush
11.Face mask
13.Point bit
15.Socket head wrench
2. Cylinder case
4. Lock button
6. Label sticker
8. Goggles
10. Gloves
12.Flat bit
14. Oil pot
16.Wrench
OPERATION
89
10 11
13 12
16
15 14

08
Unplug the appliance before maintenance.
Keep the ventilation openings clear and clean the product regularly.
If an exception occurs during use, please turn o the power and disconnect the plug.
Please inspect and repair the tool before using it again.
Repair of the tool must only be carried out by qualied repair technicians.
Repair or maintenance by unqualied personnel can lead to a risk of inju.
Only the same spare pas can be used for repairing.
Care and cleaning
Clean the housing only with a damp cloth. Do not use any solvents! D thoroughly
afterwards.
If the surrounding temperature is low or the tool has not been used for a long time, please turn on
the tool to preheat for a period of time under no load. This allows the lubricant to circulate. Drilling
is dicult without enough warm-up.
Carbon brushes
In case of excessive sparking, please check carbon brushes only by a qualied
electrician.
Danger! The carbon brushes should not be replaced by anyone but a qualied electrician.
Tool lubrication
CAUTION:
THE GUARANTEE ON THIS APPLIANCE DOES NOT INCLUDE A LACK OF GREASE IN
THE BEARING CASING.
Caution:
1.The new machine can work for 20-30 hours when you get it.
2.Prior to grease feeding, always disconnect the plug from the power supply. Since an grease cham-
ber is built in this electric demolition hammer, it can be used for approximately 20 days without
supplying lubricating grease, assuming that the drill is used 3 hours daily.
3.It is enough to add 20-30g grease at a time, which can be used for 20-30 hours.
MAINTENANCE
Switching o: Release the On/O switch
Sharpening chisel tools
Use a sharp chisel for good results. You should therefore sharpen the chisels promptly to ensure
that they produce good results and provide a long seice life.
Notice!
You only require slight contact pressure for chiseling. Excessive contact pressure will place
an unnecessa strain on the motor. Check the chisels at regular inteals. Sharpen or
replace blunt chisels.

09
CAUTION:
1.If you can’t x the fault yourself, please contact your nearest vendor. Any improper repair will
void the warranty and may incur additional costs.
2.Store the equipment and accessories in a dark and d place at above freezing temperature.
3.The ideal storage is original package box and put the box in an environment between 5 and 30
degrees Celsius.
TROUBLESHOOTING INSTRUCTIONS
Possible reasons
1. Add too much oil.
2. The type of grease added is wrong.
3. The inner sealing ring is damaged.
1. The connector is loose, or the switch
is in poor contact.
2. The carbon brush is used up.
3. The motor is burned out.
Add too much grease.
1. The voltage of power supply drops.
2. Overloading causes the motor
inexible running.
3. Unsharp bits.
4. Lack of grease.
1. A foreign matter is stuck or rubbed.
2. The switch contacts are burned out.
3. The drill bit jamming or touches the
steel bar.
Troubleshooting
1. Pour grease to an appropriate level.
2. Replace the grease typre according
to the model.
3. Send the machine to a professional
maintenance centre to replace the seal
rings.
1. Check whether the plug is loose or
not in good contact.
2. Check the carbon brush and replace
it if necessa.
3. Repair or replace the motor.
Reduce the amount of grease.
1. Check whether the voltage is normal.
2. Reduce the load of motors.
3. Grind the drill bit.
4. Add appropriate amount of grease in
time.
1. Check whether there is foreign
objects entering the machine.
2. Check and replace the switch
contacts.
3. Check whether it touches the steel.
Common faults
Oil leakage from
the machine.
Motor does not
run when
powered on.
The electric pick
has a recoil failure.
Machine suace
overheating.
Abnormal
noise/no
rotation/slow
rotating speed
after powered on.
4.Half the oil displayed in the oil hole window indicates that the machine is lled with oil and users
should check oil window daily.
5.Add too much oil will cause the machine not work. If you add too much oil, please pour it out.
Feed grease into the po as described below.
1. Use the provided wrench to remove the cap of grease lling po.
2. After feeding grease, please securely clamp the grease lling po.
Note : check the grease left regularly before using, conrming that grease is lled and replenish it
as necessa according to the instructions. It is recommended to relubricate tools after each time
you change the carbon brushes.
Type of grease: It is recommended to lubricate tools with Mobiltemp SHC32.