n) Remove the cutting disc from the machine after
use. The cutting disc may suffer damage if the ma-
chine is transported with the disc fitted.
o) Abrasive cutting discs for gasoline-powered cut-
off saws which are used for wet cutting must be
used up the same day as long periods of exposure
to moisture have a negative effect on the strength
of the disc.
p) Observe the expiry date for resin-bonded cutting
discs and don't use the discs after this date.
q) Resharpen polished diamond segments (no dia-
monds project from the segment matrix) by cut-
ting with the disc in a very abrasive material such
as sandstone.
r)
Don't use damaged diamond cutting discs (cracks
in the steel disc, broken or polished segments,
6 Before use
6.1 Fuel
NOTE
The two-stroke motor runs on a mixture of gasoline and
oil. The quality of the fuel mixture decisively influences
the running and life expectancy of the motor.
CAUTION
Avoid direct skin contact with gasoline.
CAUTION
Ensure that the workplace is well ventilated in order
to avoid breathing in gasoline fumes.
CAUTION
Use a fuel container that complies with the applicable
regulations.
CAUTION
Alkylate gasoline does not have the same density (specific
weight) as conventional gasoline. To avoid damage when
alkylate gasoline is used, the machine must be readjusted
by Hilti Service. Alternatively, the oil content can be
increased to 4% (1:25).
6.1.1 Two-stroke oil
Use Hilti two-stroke oil for air-cooled motors or a good
quality two-stroke oil with the TC classification.
6.1.2 Gasoline
Use regular or super gasoline with an octane rating of at
least 90 ROZ.
The alcohol content (e.g. ethanol, methanol...) of the fuel
used must not exceed 10%, otherwise the life expectancy
of the motor will be greatly reduced.
damaged arbor hole, bent or distorted steel disc,
heavy discoloration due to overheating, steel disc
worn away beneath the segments, diamond seg-
ments with no lateral overhang, etc.)
5.10 Personal protective equipment
The user and any other persons in the vicinity must
wear suitable eye protection, a hard hat, ear protec-
tion, protective gloves and safety footwear while the
machine is in use.
6.1.3 Mixing fuel
CAUTION
The motor will suffer damage if run with fuel mixed in
the wrong ratio or with unsuitable oil. Use the following
mix ratio with Hilti two-stroke oil: 1 part oil + 50 parts
gasoline. Use the following mix ratio with quality two-
stroke oil with the TC classification: 1 part oil + 25
parts gasoline.
1.
Pour the required quantity of two-stroke oil into the
fuel container.
2.
Add the gasoline to the fuel container.
3.
Close the cap on the fuel container.
4.
Mix the fuel by shaking the fuel container.
6.1.4 Storing the fuel mixture
CAUTION
Pressure may build up in the fuel tank. Accordingly, take
care when opening the fuel tank cap.
CAUTION
Store the fuel in a dry, well-ventilated room.
Mix only enough fuel for a few days' use.
Clean the fuel container occasionally.
6.1.5 Filling the machine with fuel
CAUTION
Don't refuel the machine right at the place where you
are working (move at least 3 meters (10 feet) away
from the object you have been cutting).
DANGER
Don't smoke when filling the tank with fuel!
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