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may entangle your clothes and cause the
attachment to hurt your body.
14. Clean the vents of power tool frequently. The
motor fan will suck dust into the enclosure,
too much metal powder deposition will lead to
electrical hazards.
15. Do not operate power tool near flammable
materials, which may be ignited by sparks.
16. Do not use attachment that require coolant.
Water or other coolants may cause electrical
corrosion or shock.
Rebound and related warnings
Rebound refers to the sudden reaction force
generated by stuck or twined rotating grinding
wheel, backrest cushion, steel wire brush or other
attachment. Blocking or winding will cause rapid
rotation blocking of the rotating attachment, and
then the out-of-control power tool will produce
movement opposite to the rotation direction of
attachment at the locking point.
For example, if the grinding wheel is wound or
stuck by the workpiece, the edge of the grinding
wheel extending into the stuck point may enter the
material surface and cause the grinding wheel to
creep out or rebound. The grinding wheel may fly
towards or away from the operator, depending on
the direction of movement of the grinding wheel at
the stuck point. Under this condition, the grinding
wheel may also break.
Rebound is the result of misuse of the power
tool and/or incorrect operating procedures or
conditions, which can be avoided with the following
preventive measures.
1. The operator shall keep a firm grip on the power
tool to keep his body and arm in the correct
state to resist rebound. Any auxiliary handle shall
be used all the time to maximally control the
rebound force or torque when starting. Proper
precautions taken can help the operator control
the reaction torque or rebound force.
2. Never put your hands near the rotating
attachment. The attachment may rebound and
injure your hands.
3. Do not stand where the power tool may move
when rebounding occurs. The rebound will drive
the tool against the grinding wheel movement
direction at the winding point.
4. Be careful when working at sharp corners and
sharp edges, etc. Avoid bounce and winding of
the attachment. Sharp corners, sharp edges
and bounces have a tendency to wrap around
the rotating attachment and cause runaway
rebound.
5. Do not attach a saw chain, wood carving blade
or toothed saw blade, which will cause frequent
rebound and out-of-control.
EN
6
Special safety warnings for grinding and
sand-cutting operations
1. Only use the recommended grinding wheel model
and the guard specially designed for the selected
grinding wheel. Grinding wheels not designed for
power tools cannot be fully protected and are
unsafe.
2. The guard must be firmly installed on the power
tool and placed in the safest way, with only the
minimum part of the grinding wheel exposed
to the operator. The guard helps protect the
operator from the danger of bursting the grinding
wheel fragments and accidental contact with
the grinding wheel.
3. The grinding wheel shall only be used for the
recommended purpose. For example, do not grind
with the side of the cutting wheel. The force
applied to the side of the grinding wheel may
cause it to break.
4. Always use an undamaged grinding wheel
flange of the appropriate size and shape for
the selected grinding wheel. The possibility
of grinding wheel fracture can be reduced by
supporting the grinding wheel with a suitable
grinding wheel flange. The flange of the cutting
wheel can be different from the flange of the
grinding wheel.
5. It is not allowed to use worn grinding wheels left
over from large-sized power tools. The grinding
wheel used for large-sized power tools is not
suitable for high-speed working conditions of
small-sized tools and may burst.
Special safety warnings for cutting
operations of the grinding wheel
1. Do not "clamp" the cutting wheel or apply too
much pressure. Do not cut too deeply. The
application of over-stress to the grinding wheel
increases the load of the grinding wheel during
cutting, which is easy to wind or get stuck, and
increases the possibility of rebound or bursting
of the grinding wheel.
2. Do not face the rotating wheel or stand behind
it. When the grin-ding wheel is removed from the
operating point beside the operator, the possible
rebound will push the rotary grinding wheel and
power tools towards the operator.
3. When the grinding wheel is stuck or the cutting
is interrupted for any reason, turn off the power
tool and hold the tool until the grin-ding wheel
is completely stopped. Never try to separate
the cutting wheel from the cutting when the
grinding wheel is still running, or it will rebound.
Investigate and take corrective measures to
eliminate the cause of wheel seizure.
4. The cutting operation cannot be restarted on the
workpiece. After the grinding wheel reaches full
speed, carefully re-enter the cutting. If the power
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