HIKOKI G 1813DF, Handling Instructions Manual, Page: 10 / 24

10
e) Support panels or any oversized workpiece to
minimize the risk of wheel pinching and kickback.
Large workpieces tend to sag under their own weight.
Supports must be placed under the workpiece near the
line of cut and near the edge of the workpiece on both
sides of the wheel.
f) Use extra caution making a “pocket cut” into
existing walls or other blind areas.
The protruding wheel may cut gas or water pipes,
electrical wiring or objects that can cause kickback.
g) Do not attempt to do curved cutting.
Overstressing the wheel increases the loading and
susceptibility to twisting or binding of the wheel in the cut
and the possibility of kickback or wheel breakage, which
can lead to serious injury.
GENERAL SAFETY INSTRUCTIONS
FOR CORDLESS DISC GRINDERS
– Attach the side handle fi rmly, hold the housing and the
side handle with both hands, and support the tool body
securely. ( Fig. 2 )
– Check that speed marked on the wheel is equal to or
greater than the rated speed of the grinder;
– Ensure that the wheel dimensions are compatible with
the grinder;
– Inspect the grinding wheel before use, do not use
chipped, cracked or otherwise defective products;
– Ensure that mounted wheels and points are fi tted in
accordance with the manufacturer’s instructions;
– Ensure that blotters are used when they are provided
with the bonded abrasive product and when they are
required;
– Ensure that the abrasive product is correctly mounted
and tightened before use and run the tool at no-load for
30 seconds in a safe position, stop immediately if there
is considerable vibration or if other defects are detected.
If this condition occurs, check the machine to determine
the cause;
– If a guard is equipped with the tool never use the tool
without such a guard;
– Do not use separate reducing bushings or adapters to
adapt large hole abrasive wheels;
– For tools intended to be fi tted with threaded hole wheel,
ensure that the thread in the wheel is long enough to
accept the spindle length;
– Do not use cutting o ff wheel for side grinding;
– Ensure that sparks resulting from use do not create
a hazard e.g. do not hit persons, or ignite fl ammable
substances;
– Ensure that ventilation openings are kept clear when
working in dusty conditions, if it should become
necessary to clear dust, fi rst disconnect the tool from
the mains supply (use non metallic objects) and avoid
damaging internal parts;
– Always use eye and ear protection. Other personal
protective equipment such as dust mask, gloves, helmet
and apron should be worn;
– Pay attention to the wheel that continues to rotate after
the tool is switched o ff .
– When using dual-purpose (combined grinding and
cut-o ff wheels), use only the type A wheel guard. (See
page 18)
– When using a type A wheel guard for lateral grinding,
the guard may interfere with the workpiece causing poor
control.
– When using a type B wheel guard for cutting-o ff
operations with bonded cut-o ff wheels, there is an
increased risk of exposure to emitted sparks and
particles, as well as exposure to wheel fragments in the
event of a wheel burst.
– When using a type A, B wheel guard for cutting-o ff
operations or lateral grinding in concrete or masonry,
there is an increased risk of exposure to dust and loss of
control resulting in kickback.
– Do not use any segmented diamond cut-o ff wheels with
segment slits >10 mm. Only negative segment cutting
angles are permitted.
– The workpiece must lay fl at and be secured against
slipping, e.g. using clamps. Large workpieces must be
su ffi ciently supported.
– Observe the speci fi cations of the tool or accessory
manufacturer. Protect wheels from grease or impact.
– Accessories must be stored and handled with care in
accordance with the manufacturer's instructions.
WARNING
– When using a cutting-o ff wheel, be sure to attach a type
A wheel guard.
– When using a grinding wheel, be sure to attach a type B
wheel guard.
– For safety reasons, only use the wheel guard provided
for the respective accessory. Using an incorrect wheel
guard can lead to loss of control and serious injuries.
See also page 18.
ADDITIONAL SAFETY WARNINGS
1. Ensure that the depressed center wheel to be utilized is
the correct type and free of cracks or surface defects.
Also ensure that the depressed center wheel is properly
mounted and the wheel nut is securely tightened.
2. Con fi rm that the push button is disengaged by pushing
push button two or three times before switching the
power tool on.
3. To prolong the life of the machine and ensure a fi rst
class fi nish, it is important that the machine should not
be overloaded by applying too much pressure. In most
applications, the weight of the machine alone is su ffi cient
for e ff ective grinding. Too much pressure will result in
reduced rotational speed, inferior surface fi nish, and
overloading which could reduce the life of the machine.
4. The wheel continues to rotate after the tool is switched
o ff .
After switching o ff the machine, do not put it down until
the depressed center wheel has come to a complete
stop. Apart from avoiding serious accidents, this
precaution will reduce the amount of dust and swarf
sucked into the machine.
5. When the machine is not use, the power source should
be disconnected.
6. Be sure to switch OFF and pull out the battery to avoid
a serious accident before the depressed center wheel is
assembling and disassembling.
7. Be careful of brake kickback.
This cordless disc grinder features an electric brake that
functions when the switch is released. As there is some
kickback when the brake functions, be sure to hold the
main body securely.
8. If you notice that the unit is generating unusually high
temperatures, operating poorly, or making abnormal
noises, immediately stop using and shut o ff the power
switch. Request an inspection and repair from the dealer
where you purchased the unit or a HiKOKI Authorized
Service Center.
Continuing to use while operating abnormally might
cause injuries.
9. If the unit is mistakenly dropped or strikes another object,
make a thorough check of the unit for cracks, breakage
or deformation, etc.
Injuries might occur if the unit has cracks, breakage or
deformation.
00Book̲G1813DF̲Aust.indb 10 00Book̲G1813DF̲Aust.indb 10 2022/08/26 15:16:39 2022/08/26 15:16:39