202401051124372976.pdf - 第21页
21 V_SC_5109NC_202104 the wheel smoothly . Usually the edge of wheel shall be at an angle of about 20 degrees to the surface of workpiece. When the work is finished, separate the machine from the workpiece and then relea…
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51091C/51090C
Step 2: Install the inner pressure plate without thread
on the spindle, with a side with step downwards, and
get it caught on the spindle
Step 3: Install the wheel on the inner pressure plate
Step 4: Drive the threaded outer pressure plate
clockwise into the spindle
Step 5: Press and hold the spindle lock button (1
in Figure G) to prevent the spindle from rotating.
Tighten the outer pressure plate clockwise with the
locking wrench(Figure H).
NOTE
(See Figure I.J)
When the thickness of wheel is greater than 3 mm,
the side of outer pressure plate with the center boss
is in contact with the wheel: when the thickness of
wheel is less than or equal to 3 mm, the side of the
outer pressure plate with the center groove is in
contact with the wheel.
Removal of wheel:
WARNING
The axis lock can only be used when the spindle
stops rotating.
After confirming the shutdown and unplugging the
battery pack, repeat the above steps in reverse
order.
OPERATION
WARNING
Do not operate the tool too hard. Excessive pressure
may cause damage to the wheel.
If the tool falls during the operation, be sure to
replace the wheel.
Never hit the workpiece with a backing pad or
grinding wheel.
The bounce and blockage of wheel shall be avoided
to prevent the wheel from rebounding, especially for
the processing of corner or sharp edge. Timber saw
blade and other saw blades are strictly prohibited.
The angle grinder with these saw blades will
frequently bounce up, and it is prone to runaway and
cause personal injury.
NOTE
The maximum cutting depth is 5mm. Adjust the
pressure on the tool so that the tool does not slow
down during operation.
After the operation, be sure to close the tool and
lower the tool only after the wheel has completely
stopped.
When the tool keeps operating until the battery is
exhausted, leave the tool for 15 min before replacing
the new battery pack.
3. Switch (see Figure K)
Grasp the machine and the auxiliary handle, push the
lock button (1) forward, and then press the switch
trigger to start the machine.
4. Soft start
The machine has a soft start function. After the
start, the speed of machine gradually increases until
the maximum rotating speed. The comfort of start is
improved.
5. Electronic brake
During the operation, when the switch is released,
the electronic brake will start. Normally, the machine
will stop in 2S, and occasionally it may be greater
than 2S.
6. Grinding operation (Figure L)
NOTE
According to the material of workpiece, the wheel
of different material shall be selected, and the
recommended diameter is adopted. The maximum
rotating speed of wheel shall be more than 13000
rpm. The inner hole shall fit the pressure plate
tightly. Keep the working environment and workpiece
clean and tidy.
Place one hand on the outer casing, and the other on
the side handle, hold and start the tool, wait for the
tool to reach the maximum rotating speed, slowly
place the wheel on the workpiece, and then move
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V_SC_5109NC_202104
the wheel smoothly.
Usually the edge of wheel shall be at an angle of
about 20 degrees to the surface of workpiece. When
the work is finished, separate the machine from the
workpiece and then release the switch.
NOTE
If the grinding lasts too long at one place on the
surface of workpiece, or if the angle between the
machine and workpiece is too large, the groove will
be ground on the surface of workpiece.
WARNING
During the operation, do not squeeze the wheel or
press the machine excessively. Otherwise the wheel
has the risk of rupture and may cause the injury;
Always use the accompanied guard, and do not use
the guard or be sure to carry the guard;
Never use the cut-off wheel for grinding.
7. Cutting operation (see Figure M)
NOTE
According to the material of workpiece, the wheel
of different material shall be selected, and the
recommended diameter is adopted. The maximum
rotating speed of wheel shall be more than 13000
rpm. The inner hole shall fit the pressure plate
tightly. Keep the working environment and workpiece
clean and tidy.
Place one hand on the outer casing, and the other on
the side handle, hold and start the tool, wait for the
tool to reach the maximum rotating speed, slowly
place the wheel on the workpiece, and exert a slight
force to improve the cutting efficiency.
Once the incision is formed, do not change the
cutting angle. Otherwise, the wheel will be easily
deformed and broken, causing a risk of injury.
When the work is finished, separate the machine
from the workpiece and then release the switch.
WARNING
Do not squeeze the wheel or apply an excessive
pressure. Avoid the deep cutting, which will increase
the load, make the wheel easy to twist or stick and
increase the possibility of rebound or damage to
the wheel. The wheel may break and the motor may
overheat.
Always use the accompanied guard, and do not use
the guard or be sure to carry the guard;
Never use the cut-off wheel for grinding.
Never initiate a cutting operation in the workpiece.
Please carefully insert the wheel into the surface of
cutting workpiece after it reaches the full speed. If
the electric tool starts in the workpiece, the wheel
may stick, move or rebound.
Do not change the angle of wheel during the cutting
operation. Applying a side pressure to the cut-
off wheel will cause the wheel to crack and break,
resulting in the serious personal injury.
8. Air filter net (Figure N)
To prevent the debris from entering the inside of
machine, a filter net is set at the air inlet. After the
machine is used or stored for a long time, please pull
it down and clean it.
9. Battery level indication
When the machine switch is pressed, the battery
indicator will stay on for 5s. The remaining capacity
of battery pack may be determined according to the
following table.
0-25%
25-50%
50-75%
75-100%
LED display Remaining battery
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51091C/51090C
QUESTION AND ANSWER:
1. Why does the machine not operate after the
switch is pressed?
Check if the level of battery pack is too low
Check if the battery pack is installed properly.
2. Why does the machine stop when it is not
tightened?
The machine has low-voltage protection. When the
level of battery pack is too low, the machine will not
work. Please confirm the level of battery pack.
The machine has temperature protection. When
the battery is working at full load for a long time,
the battery pack will overheat and the temperature
protection system will start to stop the machine.
Cool the machine to normal temperature before
resumption.
The machine is equipped with overload protection.
When the load is excessive, the protection system will
start. Stop working.
WARNING
Please keep the wheel floating when the machine is
turned on and not touch the workpiece. Otherwise,
the wheel will be damaged and the machine will
rebound.
3. Why is the service life of same kind of battery
pack is different?
If a battery pack is left unused for a long time, its
service life may be shortened. This is the matter
of charging frequency. Repeated charging and
application may improve the situation. In case of
heavy work, the battery pack will run out soon. Do not
charge in a temperature below 0 °C or above 35 °C.
Otherwise, the performance of battery pack will be
affected.
MAINTENANCE
Be sure to pull off the plug before repairing or
replacing the machine.
The electric tool does not require additional
lubrication or other maintenance. Do not wash the
electric tool with the water or chemical cleaner. Wipe
it off with a dry cloth. Tool shall be stored under the
dry conditions and kept clean at the vent of motor. Try
not to use it in a dusty environment.
To prolong the service life of battery pack:
1) Store the battery pack below 26 °C after
charging it to 30%-50%.
2) Charge the battery pack fully once in less
than 6 months.