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10 – English
SAFETY INSTRUCTIONS
Sharpening diamond chains
Chains can become dull when the wrong feeding pressure is
used or when cutting some materials such as heavily reinforced
concrete. To force a dull chain results in overheating and finally
the loss of segments (part of the chain).
Sharpen against a soft abrasive material such as sandstone or
brick.
Chain vibration
Excessive vibratione can accur if a too high feeding pressure is
used or if the chain is pressed into the work piece.
A lower feeding pressure ought to stop the vibration. Otherwise
replace the cutting chain.
Kickback
If the sector of the chain illustrated below is used for cutting the
chain can start to climbing and kickback the cut-off saw
upwards and backwards towards the user with immense force.
How to avoid kickback
1.Never cut with the
segment illustrated in the
diagram.
2.Keep a good balance and
a firm foothold.
3.Use both hands and take
a firm grip with the thumb
and fingers around the
handle.
4.Keep the work piece at a
comfortable distance.
5.Use the cutter at full
throttle.
6.Take care when inserting
the chain in an existing
cut.
7.Never cut above shoulder
height.
8.Be alert to movement of
the work piece or anything
else that can occur, which
could cause the cut to
close and pinch the chain.
Water cooling
!
WARNING! Water cooling is only used on
petrol driven diamond chain saws when
cutting concrete to cool the chain and
increases its service life as well as reducing
dust (see the section
”Cutting equipment”).
Among the disadvantages are difficulties at
very low temperatures, the risk of damaging
the floor and other sections of the building
and risk for slippage.
!
WARNING!
Kickback can occur very suddenly and with
great force. If the following directives are
not followed, it can result in serious or even
fatal injury.
Pull in
Pull in occurs when the lower part of the chain is suddenly
stopped or when the cut closes. (To avoid this see the section
”How to avoid kickback” and ”Pinching/rotation” below).
Pinching/rotation
Pinching occurs when the cut closes. The cut-off saw can be
drawn suddenly and powerfully downwards.
How to avoid pinching
Support the work piece in
such a way that the cut
remains open during the
cutting operation and when
the cut is finished.
!
WARNING!
If the speed is higher than that stated then the
unit must be adjusted by an authorised
service workshop before it is used.
Care and storage
General
Husqvarna’s cut-off saws are robust and durable. However, as
they are used for high speed operations all servicing should be
carried out on time and as specified, so that the cut-off saw
always works effectively and safely.
Read this Operator’s Manual to determine which service
routines you can carry out and ensure that all other service
work is carried out by an authorised service workshop.
Always handle the cut-off saw with care and store it with the
cutting equipment removed.
Cutting equipment
• The cutting equipment should be removed from the cutter
after use and stored carefully.
• Inspect new cutting equipment for transport
or storage damage.
Once the work has been completed the diamond chain saw
should be run with water pressure for at least 15 seconds to
clean particles from the bar, chain and drive mechanism. Rinse
off the machine with water.
It is recommended that the chain and bar are oiled to prevent
corrosion if it is not to be used for some time.