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Cleaning of the power tool
•• Install grinding disc as described above.
•• Start the power tool, wait until the engine gains its
maximum speed and only after that smoothly bring
grinding disc to the surface processed.
An indispensable condition for a safe long-term exploi
tation of the power tool is to keep it clean. During the
long treatment of metal, current-conducting dust can
be accumulated inside the power tool. Regularly flush
the power tool with compressed air thought the ventila
tion slots 4.
•• Holding the power tool at an angle of 10° to 15° relat
ing to the surface processed (see fig. 12) is recommend
ed. If this angle is less than recommended, it will make
controlling the power tool more difficult. If this angle is
more than recommended, the processing quality will de
crease and grooves will be left on the billet surface.
After-sales service and application service
•• Make alternate-reciprocal movements applying
moderate pressure to the power tool. Excessive pres
sure will not bring better results but it will overload the
engine and create the danger of destruction of grinding
disc, which can cause severe injuries.
Our after-sales service responds to your questions
concerning maintenance and repair of your product as
well as spare parts. Information about service centers,
parts diagrams and information about spare parts can
also be found under: www.crown-tools.com.
Power tool maintenance / preventive
measures
Transportation of the power tools
Before carrying out any works on the power tool
remove the battery 11.
•• Categorically not to drop any mechanical impact on
the packaging during transport.
Cleaning filter (see fig. 13)
•• When unloading / loading is not allowed to use any
kind of technology that works on the principle of clamp
ing packaging.
Li-Ion batteries
Regularly inspect filter 12 (its contamination depends
on the state of the environment). Clean the filter 12
as it gets dirty. Attention: do not use power tools
without a filter 12.
•• Remove filter 12 as shown onto fig. 13.1.
•• Clean filter 12 with soft brush or blow it with
compressed air.
•• Install filter 12 as shown onto fig. 13.2.
Battery maintenance instruction
•• Charge timely before the battery 11 is completely
exhausted. Stop operation in low power and charge
it immediately.
The contained Li-Ion batteries are subject to the Danger
ous Goods Legislation requirements. The user can trans
port the batteries by road without further requirements.
When being transported by third parties (e.g.: air trans
port or forwarding agency), special requirements on
packaging and labelling must be observed. For prepa
ration of the item being shipped, consulting an expert
for hazardous material is required.
Dispatch batteries only when the housing is undam
aged. Tape or mask off open contacts and pack up the
battery in such a manner that it cannot move around
in the packaging. Please also observe possibly more
detailed national regulations.
•• Do not overcharge when the battery 11 is full, other
wise it will shorten the life time.
•• Charge battery 11 in the room temperature of 10°C
to 40°C (50°F to 104°F).
Environmental protection
•• Charge battery 11 every 6 months without operation
for a long time.
Recycle raw materials instead of dispos
ing as waste.
•• Replace worn out batteries in time. Decline of pro
duction or a significantly shorter runtime of the power
tool after charging indicates aging of the battery 11 and
the need for replacement. It should be taken into ac
count that the battery 11 may discharge faster if the
works take place in the temperature below 0°С.
•• In case of long time storage without use, it is recom
mended to store the battery 11 at room temperature, it
should be charged to 50%.
Power tool, accessories and packaging should
be sorted for environment-friendly recycling.
The plastic components are labelled for categorized
recycling.
These instructions are printed on recycled paper man
ufactured without chlorine.
The manufacturer reserves the possibility to introduce changes.
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