Cheng Kang CWL1803 User manual

IMPORTANT: Read Before Using.
ZHEJIANG CHENGKANG MACHINERY
& ELECTRICAL PRODUCT
MANUFACTURING CO.,LTD
INSTRUCTION MANUAL
Cordless Impact Wrench
CW 1803 CW 2103
第 1 页

规格 Work area safety
CWL1803 CWL2103 1. Keep wor area clean and well lit. Cluttered or
dar areas invite accidents.
2. Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, gases or dust. Power tools
create spar s which may ignite the dust or fumes.
3. Keep children and bystanders away while
operating a power tool. Distractions can cause
you to lose control.
1.85 1.99 Electrical Safety
D.C 18V D.C 21.6V 4. Power tool plugs must match the outlet. Never
modify the plug in any way. Do not use any
• Due to our continuing programme of research and adapter plugs with earthed (grounded) power
development, the specifications herein are subject tools. Unmodified plugs and matching outlets will
to change without notice. reduce ris of electric shoc .
• Specifications and battery cartridge may differ 5. Avoid body contact with earthed or grounded
from country to country. surfaces such as pipes, radiators, ranges and
• Weight, with battery cartridge refrigerators. There is an increased ris of
General Power Tool Safety electric shoc if your body is earthed or grounded.
Warnings 6. Do not expose power tools to rain or wet
WARNING Read all safety warnings and all conditions. Water entering a power tool will
instructions. Failure to follow the warnings and increase the ris of electric shoc .
instructions may result in electric shoc , fire and/or 7. Do not abuse the cord. Never use the cord for
serious injury. carrying, pulling or unplugging the power tool.
Keep cord away from heat, oil, sharp edges or
Save all warnings and moving parts. Damaged or entangled cords
instructions for future reference. increase the ris of electric shoc .
The term "power tool" in the warnings refers to your 8. When operating a power tool outdoors, use an
mains-operated (corded) power tool or battery-operated extension cord suitable for outdoor use. Use of
(cordless) power tool. a cord suitable for outdoor use reduces the ris of
electric shoc .
9. If operating a power tool in a damp location is
unavoidable, use a ground fault circuit
0-3200
250
Model
173
Battery Capacity
Length（mm)
No load speed(rpm)
Impact per minite
Max. Torque (NM)
Capacities M12-M22
0-2200
Votage
Net Weight
Toolholder 1/2"
Charge time 1H
3.0AH
第 2 页

interrupter (GFCI) protected supply. Use of an Power tool use and care
GFCI reduces the ris of electric shoc . 17. Do not force the power tool. Use the correct
Personal Safety power tool for your application. The correct
10. Stay alert, watch what you are doing and use power tool will do the job better and safer at the
common sense when operating a power tool. rate for which it was designed.
Do not use a power tool while you are tired or 18. Do not use the power tool if the switch does
under the influence of drugs, alcohol or not turn it on and off. Any power tool that cannot
medication. A moment of inattention while be controlled with the switch is dangerous and
operating power tools may result in serious must be repaired.
personal injury. 19. Disconnect the plug from the power source
11. Use personal protective equipment. Always and/or the battery pac from the power tool
wear eye protection. Protective equipment such before ma ing any adjustments, changing
as dust mas , non-s id safety shoes, hard hat, or accessories, or storing power tools. Such
hearing protection used for appropriate conditions preventive safety measures reduce the ris of
will reduce personal injuries. starting the power tool accidentally.
12. Prevent unintentional starting. Ensure the 20. Store idle power tools out of the reach of
switch is in the off-position before connecting children and do not allow persons unfamiliar
to power source and/or battery pac , pic ing with the power tool or these instructions to
up or carrying the tool. Carrying power tools with operate the power tool. Power tools are
your finger on the switch or energising power tools dangerous in the hands of untrained users.
that have the switch on invites accidents. 21. Maintain power tools. Chec for misalignment
13. Remove any adjusting ey or wrench before or binding of moving parts, brea age of parts
turning the power tool on. A wrench or a ey left and any other condition that may affect the
attached to a rotating part of the power tool may power tool’s operation. If damaged, have the
result in personal injury. power tool repaired before use. Many accidents
14. Do not overreach. Keep proper footing and are caused by poorly maintained power tools.
balance at all times. This enables better control 22. Keep cutting tools sharp and clean. Properly
of the power tool in unexpected situations. maintained cutting tools with sharp cutting edges
15. Dress properly. Do not wear loose clothing or are less li ely to bind and are easier to control.
jewellery. Keep your hair, clothing, and gloves 23. Use the power tool, accessories and tool bits
away from moving parts. Loose clothes, etc. in accordance with these instructions,
jewellery or long hair can be caught in moving ta ing into account the wor ing conditions
parts. and the wor to be performed. Use of the power
16. If devices are provided for the connection of tool for operations different from those intended
dust extraction and collection facilities, could result in a hazardous situation.
ensure these are connected and properly used. Battery tool use and care
Use of dust collection can reduce dust-related 24. Recharge only with the charger specified by
hazards. the manufacturer. A charger that is suitable for
第 3 页

one type of battery pac may create a ris of fire 3. Hold power tool by insulated gripping
when used with another battery pac . surfaces, when performing an operation
25. Use power tools only with specifically where the fastener may contact hidden wiring
designated battery pac s. Use of any other or its own cord. Fasteners contacting a "live" wire
battery pac s may create a ris of injury and fire. may ma e exposed metal parts of the power tool
26. When battery pac is not in use, eep it away live and could give the operator an electric
from other metal objects, li e paper clips, shoc .
coins, eys, nails, screws or other small metal 4. Always be sure you have a firm footing.
objects, that can ma e a connection from one Be sure no one is below when using the tool in
terminal to another. Shorting the battery high locations.
terminals together may cause burns or a fire. 5. Hold the tool firmly.
27. Under abusive conditions, liquid may be 6. Keep hands away from rotating parts.
ejected from the battery; avoid contact. If 7. Do not leave the tool running. Operate the tool
contact accidentally occurs, flush with water. only when hand-held.
If liquid contacts eyes, additionally see 8. Do not touch the drill bit or the wor piece
medical help. Liquid ejected from the battery may immediately after operation; they may be
cause irritation or burns. extremely hot and could burn your s in.
Service 9. Some material contains chemicals which may
28. Have your power tool serviced by a qualified be toxic. Ta e caution to prevent dust
repair person using only identical replacement inhalation and s in contact. Follow material
parts. This will ensure that the safety of the power supplier safety data.
tool is maintained.
29. Follow instruction for lubricating and SAVE THESE INSTRUCTIONS.
changing accessories. WARNING:
30. Keep handles dry, clean and free from oil and DO NOT let comfort or familiarity with product
grease. (gained from repeated use) replace strict adherence
CORD ESS DRI SAFETY to safety rules for the subject product. MISUSE or
WARNINGS failure to follow the safety rules stated in this
1. Use auxiliary handles supplied with the tool. instruction manual may cause serious personal
Loss of control can cause personal injury. (if injury.
supplied)
2. Hold power tools by insulated gripping IMPORTANT SAFETY
surfaces when performing an operation where INSTRUCTIONS
the cutting tool may contact hidden wiring or FOR BATTERY CARTRIDGE
its own cord. Contact with a "live" wire will ma e 1. Before using battery cartridge, read all
exposed metal parts of the tool "live" and shoc instructions and cautionary mar ings on (1)
the operator. battery charger, (2) battery, and (3) product
using battery.
第 4 页

2. Do not disassemble battery cartridge. FUNCTIONA DESCRIPTION
3. If operating time has become excessively CAUTION:
shorter, stop operating immediately. It may • Always be sure that the tool is switched off and the
result in a ris of overheating, possible burns battery cartridge is removed before adjusting or
and even an explosion. chec ing function on the tool.
4. If electrolyte gets into your eyes, rinse them Installing or removing battery cartridge
out with clear water and see medical
attention right away. It may result in loss of
your eyesight.
5. Do not short the battery cartridge:
(1) Do not touch the terminals with any
conductive material.
(2) Avoid storing battery cartridge in a
container with other metal objects such as • Always switch off the tool before installation or
nails, coins, etc. removal of the battery cartridge.
(3) Do not expose battery cartridge to water or rain. • To remove the battery cartridge, withdraw it from
A battery short can cause a large current the tool while sliding the button on the front of the
flow, overheating, possible burns and cartridge.
even a brea down. • To insert the battery cartridge, align the tongue on
6. Do not store the tool and battery cartridge in the battery cartridge with the groove in the housing
locations where the temperature may reach or and slip it into place. Always insert it all the way
exceed 50 ﾟC (122 ﾟF). until it loc s in place with a little clic .
7. Do not incinerate the battery cartridge even if • Do not use force when inserting the battery
it is severely damaged or is completely worn cartridge. If the cartridge does not slide in easily, it
out. The battery cartridge can explode in a fire. is not being inserted correctly.
8. Be careful not to drop or stri e battery. Switch action
9. Do not use a damaged battery.
SAVE THESE INSTRUCTIONS.
Tips for maintaining maximum battery life
1. Charge the battery cartridge before
completely discharged.
Always stop tool operation and charge the
battery cartridge when you notice less tool power
2. Never recharge a fully charged battery cartridge.
Overcharging shortens the battery service life. CAUTION:
3. Charge the battery cartridge with room • Before inserting the battery cartridge into the tool,
temperature at 10 ﾟC - 40 ﾟC (50 ﾟF - 104 ﾟF). always chec to see that the switch trigger
Let a hot battery cartridge cool down before actuates properly and returns to the "OFF" position
charging it. when released.
1. Button
2. Battery cartridge
1. Switch trigger
第 5 页

To start the tool, simply pull the switch trigger. Tool CAUTION:
speed is increased by increasing pressure on the • Always chec the direction of rotation before
switch trigger. Release the switch trigger to stop. operation.
ighting up the front lamp • Use the reversing switch only after the tool comes
1. Lamp to a complete stop. Changing the direction of
rotation before the tool stops may damage the tool.
• When not operating the tool, always set the
reversing switch lever to the neutral position.
ASSEMB Y
CAUTION:
• Always be sure that the tool is switched off and the
battery cartridge is removed before carrying out
CAUTION: any wor on the tool.
• Do not loo in the light or see the source of light Selecting correct soc et
directly. Always use the correct size soc et for bolts and
Pull the switch trigger to light up the lamp. The lamp nuts. An incorrect size soc et will result in inaccurate
eeps on lighting while the switch trigger is being pulled. and inconsistent fastening torque and/or damage to
the boltor nut.
NOTE: Installing or removing socket
• Use a dry cloth to wipe the dirt off the lens of lamp.
Be careful not to scratch the lens of lamp, or it may
lower the illumination.
Reversing switch action
1. For soc et without O-ring and pin
To install the soc et, push it onto the anvil of the
tool until it loc s into place.
1. Reversing switch lever To remove the soc et, simply pull it off.
This tool has a reversing switch to change the direction 2. For soc et with O-ring and pin
of rotation. Depress the reversing switch lever from
the A side for cloc wise rotation or from the B side for
countercloc wise rotation.
When the reversing switch lever is in the neutral
position,the switch trigger cannot be pulled.
第 6 页

Move the O-ring out of the groove in the soc et
and remove the pin from the soc et. Fit the soc et
onto the anvil of the tool so that the hole in the
soc et is aligned with the hole in the anvil. Insert
the pin through the hole in the soc et and anvil.
Then return the O-ring to the original position in the
soc et groove to retain the pin. To remove the
soc et, follow the installation procedures in
reverse.
OPERATION
CAUTION:
• Always insert the battery cartridge all the way until
it loc s in place. If you can see the red part on the
upper side of the button, it is not loc ed completely.
Insert it fully until the red part cannot be seen. If not,
it may accidentally fall out of the tool, causing injury
to you or someone around you.
Hold the tool firmly and place the soc et over the bolt or
nut. Turn the tool on and fasten for the proper fastening
time.
NOTE:
• Hold the tool pointed straight at the bolt or nut.
• Excessive fastening torque may damage the
bolt/nut or soc et. Before starting your job, always
perform a test operation to determine the proper
The proper fastening torque may differ depending upon fastening time for your bolt or nut.
the ind or size of the bolt, the material of the wor piece • If the tool is operated continuously until the battery
to be fastened, etc. The relation between fastening cartridge has discharged, allow the tool to rest for
torque and fastening time is shown in the figures. 15 minutes before proceeding with a fresh battery
cartridge.
The fastening torque is affected by a wide variety of
factors including the following. After fastening, always
chec the torque with a torque wrench.
第 7 页

1. When the battery cartridge is discharged almost ACCESSORIES
completely, voltage will drop and the fastening CAUTION:
torque will be reduced. • These accessories or attachments are
2. Soc e recommended for use with your CHENGKANG tool
• Failure to use the correct size soc et will specified in this manual. The use of any other
cause a reduction in the fastening torque. accessories or attachments might present a ris of
• A worn soc et (wear on the hex end or square injury to persons. Only use accessory or
end) will cause a reduction in the fastening attachment for its stated purpose.
torque. If you need any assistance for more details regarding
3. Bolt these accessories, as your local service center.
• Even though the torque coefficient and the
class of bolt are the same, the proper • Soc ets
fastening torque will differ according to the • Plastic carrying case
diameter of bolt. • Various type of CHENGKANG batteries and
• Even though the diameters of bolts are the chargers
same, the proper fastening torque will differ
according to the torque coefficient, the class of
bolt and the bolt length.
4. The use of the universal joint or the extension bar
somewhat reduces the fastening force of the
impact wrench. Compensate by fastening for a
longer period of time.
5. The manner of holding the tool or the material of
driving position to be fastened will affect the
torque.
6. Operating the tool at low speed will cause a
reduction in the fastening torque.
第 8 页

第 9 页