Unimac UCW255 User manual

Battery Powered Impact Wrench
User Manual
RETAIN THIS MANUAL FOR FUTURE REFERENCE
PLEASE READ THIS MANUAL CAREFULLY BEFORE USE

Impact Wrench
i
Table of Contents
Safety.......................................................................................................................................................................1
Work Area...........................................................................................................................................................1
Electrical Safety..................................................................................................................................................1
Personal Safety..................................................................................................................................................1
Included Items ........................................................................................................................................................2
Battery Pack.......................................................................................................................................................2
Charger...............................................................................................................................................................2
Operation.................................................................................................................................................................3
Maintenance............................................................................................................................................................3
Technical Specifications .......................................................................................................................................4

Impact Wrench
1
Safety
The machine should be stop after long time use if overheating until cooled to proper temperature .In order not to
damage the machine
•
The machine should be used in the environment where the temperature is between 5-40℃. So do not put it
in outdoor or keep in the car.
•
The battery can be restored by short charge if it was protected by an over current protection.
•
The machine should be stopped after long time use if overheating until cooled to proper temperature, in
order not to damage the machine.
Work Area
•
Keep your work area clean and well lit.
•
Cluttered benches and dark area invite accidents.
•
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 ruins.
•
Keep by standers, children and visitors away while operating a power tools. Distractions can cause you to
lose control.
Electrical Safety
•
Don’t expose power tools to rain or wet conditions. Water entering a power tools will increase the risk of
electric shock.
•
Do not abuse the cord. Never use the cord to carry the tools or pull the plug from an outlet. Keep cord away
from heat, oil, sharp edges or moving parts. Replace damaged cords immediately. Damaged cords increase
the risk of electric shock.
•
When operating a power tools outside, use an outdoor extension cord marked “WA” or “W”. These cords are
rated for outdoor use and reduce the risk of electric shock.
Personal Safety
•
Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use tools
while tried or under the influence of drugs, alcohol, or medication. A moment of inattention while operating
power can result in serious personal injury.
•
Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing and gloves away from
moving parts. Loose clothes like jewellery or long hair can be caught in moving parts.
•
Avoid accidental starting. Be sure switch is off before plugging in. Carrying tools with your finger on the
switch or plugging in tools that have the switch or plugging in tools that have the switch on invites accidents.
•
Remove adjusting keys or switches before turning the tool on. A switch or a key that is left attached to the
tool or rotating part may result in personal injury. Please check the sockets carefully be using.
•
Use safety equipment. Always wear eye protection. Dust mask, non-skin safety shoes, hard hat, or hearing
protection must be used for appropriate conditions.

Impact Wrench
2
Included Items
Li-ion impact wrench 1 pc
Charger with cable (1.8m) 1 pc
Battery 1 pc
Socket 4pcs: 17mm, 19mm,
21mm & 22mm
Cigarette lighter power pack 1 pc
Battery Pack
In order to ensure the safety during transportation, the battery should be 40% - 50% charged.
Function:
1. Short circuit protection can be restored
2. Single battery monitoring and protection
3. Over charge protection voltage 12.6V, 20A DC
4. Over-discharge protection voltage is 8.7V DC. The machine will stop when the
voltage of battery lower than 8.7v.
5. High temperature protection for charging is 50℃,the temperature of charging
environment should be lower than 50℃
6. High temperature protection for discharge is 70℃,the machine will stop when the
temperature of workplace higher than 70℃
Charger
80 minutes charging at least and 120 minutes for full charge.
Input Voltage 100 – 240 V
AC 50 – 60 HZ
Output 12.6 V DC 30 W
Current 1500 MA
Function:
1. DC output over current protection
2. DC output short circuit protection
3. LED indication of charging process
Light in red is for charging
Light in green is for charge complete

Impact Wrench
3
Operation
This impact wrench features a centrifugal clutch which engages when there's enough torque. If you feel that
there's no force at all to turn a bolt, pull the trigger in more.
Due to the fact this impact wrench uses a 12v battery, there is insufficient power to use a clutch-less system.
Once there is enough speed, the clutch will engage.
Also note, do not over use the impact wrench. Release off the trigger when the bolt is sufficiently tight.
The size of the bolt will also determine the torque. Refer to table below:
Size of Bolt Torque
(N.M.)
M10-M12 40-80
M12-M16 100-200
M14-M16 120-200
M18-M24 200-350
Maintenance
Tool service must be performed only by qualified repair personnel. Service or maintenance performed by
unqualified personnel could result in a risk of injury.
When servicing a tool, use only identical replacement parts. Follow instructions in the maintenance section of
this manual. Use of unauthorized parts or failure to follow maintenance instructions may create a risk of electric
shock or injury.
Warning: hold tools by insulated gripping surfaces when performing an operation where the cutting tools may
contact hidden wiring or as own cord. Contact with a “live” wire will make exposed metal parts or the tool “live”
and shock the operator. Be sure to wear safety goggles when operating this device.
•
Use clamps or other method to secure and support the workplace to a stable platform. Holding the work by
hand or against your body is unstable and may lead to loss of control.
•
Do not force tool. Use the correct tool for your application. The correct tools will do the job better and safer at
the rate for which it is designed.
•
Do not use tool if switch does not turn it on or off. Any tool that cannot be controlled with the switch is
dangerous and must be repaired.
•
Disconnect the plug from the power source before making any adjustments, changing accessories, or storing
the tool. Such preventive safety measures reduce the risk of starting the tool accidentally.
•
Store idle tools out of reach of children and other untrained persons. Tools are dangerous in the hands of
untrained users.
•
Maintain tools with care. Keep cutting tools sharp and clean. Properly maintained tools with sharp cutting
edges are less likely to bind and are easier to control.
•
Check for misalignment or binding of moving parts, breakage of parts, and any other condition that may
affect the tools operation. If damaged, have the tool serviced before using. Many accidents are caused by
poorly maintained tools.
•
Use only accessories recommended by the manufacturer for your model. Accessories that are suitable for
one tools, may become hazards when used with another tool.

Impact Wrench
4
Technical Specifications
Power Supply 12V DC
Speed 5500r/min
Protection Class II
Spindle Size ½”
Battery Type Lithium-Ion
Charging Time 80mins
Battery Capacity 200mah
Weight (with battery) 1.4kg

Some experts believe the incorrect or prolonged use of almost any
product could causeserious injury or death. For information that
may reduce your risk of serious injury or death consult thepoints
below and additionally, the information available at
www.datastreamserver.com/safety
- Consult all documentation, packaging and
product labelling be fore use. Note that some
products feature online documentation which
should be printed and kept with the p roduct.
- Check product for loose / broken / damaged /
missing parts, wear or leaks (if applicable) be fore
each use. Never use a product with loose / broken
/ damaged / missing parts, wear or leaks (if
applicable).
- Products must be inspected and serviced (if
applicable) by a qualified specialist every 6
months assuming average residential use by a
person of average weight and strength, ab ove
average technical aptitude, on a property
matching average metropolitan specification.
Intended use outside these guidelines could
indicate the product is not suitable for intended
use or may require more regular inspection or
servicing.
- Ensure all possible users of the p roduct have
completed an industry recognised training course
before being given access to the product.
- The product has been supplied by a general merchandise
retailer that may not be familiar with your specific applic ation or
your description of the application. Be sure to attain third party
approval for your application from a qualified specialist before use
regardless of prior assurances by the retailer or its representatives.
- This product is not intended for use where fail-safe operation is
required. As with any product (take an au tomobile, aircraft,
computer or ball point pen for example) there is always a small
chance of a technical issue that needs to be repaired or may
require replacement of the product or a part. If the possibility of
such failure and the associated time it takes to rectify could in any
situation inconvenience the user, business or employee or could
financially affect the user, business or employee then the product
is not suitable for your requirements. This p roduct is not for use
where incorrect operation or a failure of any kind, including but
not limited to a condition requiring product return, replacement,
service by a technician or replacement of parts could cause a
financial loss, loss of employee time or an in convenience
requiring compensation.
- If this item has been purchased in error considering the points
above simply contact the retailer directly for details of their
returns policies if required.